Looking for MPCB manufacturers in Yueqing? This guide profiles ten Yueqing companies that publish motor protection circuit breakers, manual motor starters or closely related motor-protection products. It is written for buyers comparing devices for pumps, fans, conveyors, compressors, machine tools and other three-phase motor branches.
An MPCB normally combines a manually operated switching mechanism with overload protection and a magnetic short-circuit trip. Some manufacturers call the same family a manual motor starter, motor protector or motor circuit breaker. Those names are not interchangeable by default: one model may include phase-failure protection, another may be only a thermal overload relay, and a standard MCB may have neither the correct magnetic trip nor the motor-duty rating. Confirm the functions, trip class, setting range and applicable standard for the exact catalogue number.
How this list was selected: Official company, product and contact pages were reviewed on 23 October 2026. The order is a research shortlist, not a quality, price, certification, export or “best” ranking. A published product category or local address does not prove that BottomRace has audited every factory or that every model carries every approval. Confirm the legal entity, production site, exact model, current certificate and test scope before ordering.
Ten Yueqing MPCB manufacturers to compare
Use the published focus below to form a first supplier group. The important differences are the trip-unit range, magnetic-trip behaviour, breaking capacity at the actual voltage, accessories and whether the product is a complete MPCB or only one part of a motor starter.
| Manufacturer | Published location | Published MPCB focus | Useful first question |
|---|---|---|---|
| VIOX Electric | East Innovation Zone, Wengyang Town, Yueqing | 3VE-series motor protection circuit breakers from 0.1 A to 63 A | Which 3VE frame, setting range and breaking capacity applies at 380 V or 660 V? |
| People Electrical Appliance Group Co., Ltd. | No. 555 Liule Road, Liushi, Yueqing | PGV2 and PGV3 manual motor starters for motor branch protection | Which frame and trip unit cover the motor current without relying on the frame size alone? |
| TENGEN Electric | Sulv Industrial Zone, Liushi, Yueqing | TGD1-32 AC motor circuit breaker with trip class 10A | Does the 32 A frame and class 10A trip curve fit the motor starting duty? |
| HUYU Electric | Wenzhou Bridge Industrial Park, Beibaixiang, Yueqing | DZ108 and HYD1 motor protection circuit breakers | Which HYD1 frame, operating style and thermal setting range are required? |
| Changan Group | No. 288 Wei 17th Road, Yueqing Economic Development Zone | CS2-32 and CS2-80 motor protection circuit breakers | Which CS2 frame, trip unit and breaking-capacity table applies? |
| Zhejiang Kripal Electric Co., Ltd. | Zhongfang Intelligent Industrial Park, Beibaixiang, Yueqing; also lists Daqiao Industrial Zone | UKS-M3207 motor protector for overload, short circuit and phase failure | Does the UKS-M3207 configuration match the motor current, voltage and fault level? |
| Yueqing Hongxi Electric Co., Ltd. | No. 8278 Liuhuang Road, Liushi, Yueqing | HGV2 and HGV3 motor protection circuit breakers | Which HGV2 or HGV3 model and thermal setting range fit the motor? |
| JOYELEC | Houan Industry Area, North Baixiang, Yueqing | CL1018 and GV2ME14 motor starter protectors | Which catalogue model has a complete datasheet for the required motor duty? |
| Wenzhou Juhong Electric Co., Ltd. | Xiangyang Industrial Zone, Liushi, Yueqing | J3VE, JGV2 and JGV3 motor protection circuit breakers | Which Juhong model and setting range are supported by a complete technical sheet? |
| Saide Electric Co., Ltd. | 118 Fuhua Road, Wengyang Street, Yueqing | SDM7-32, SDM7-80 and related motor-protector variants | Which SDM7 frame, operating style and setting range are offered? |
Manufacturer profiles and questions to ask
1. VIOX Electric
Short name: VIOX
Published location: East Innovation Zone, Wengyang Town, Yueqing
VIOX publishes a dedicated MPCB category and a 3VE-series product page covering J3VE1, J3VE3 and J3VE4 models. The published range spans 0.1 A to 63 A for AC 50 Hz systems at 380 V and 660 V, with bimetallic overload protection and electromagnetic short-circuit protection. The page lists model-dependent short-circuit breaking capacities, adjustable current settings, IP20 protection and accessories including undervoltage and shunt releases. These are useful published selection data, but the exact frame, setting range, voltage, breaking capacity and certificate scope still need to be confirmed for the offered model.
Before requesting a quote: Send the motor nameplate current, supply voltage and frequency, starting method, starting current and duration, required trip class, prospective fault current and ambient temperature. State whether the MPCB needs a rotary or push-button operator, auxiliary contacts, undervoltage or shunt release, enclosure and contactor coordination. Ask for the exact J3VE model, current setting range, Icu and Ics at the actual voltage, terminals, dimensions, accessories and the current document naming that model and production site.
Official sources: MPCB category · 3VE-series motor protection circuit breaker · GV3 motor protection circuit breaker · contact page.
2. People Electrical Appliance Group Co., Ltd.
Short name: PEOPLE
Published location: No. 555 Liule Road, Liushi, Yueqing
PEOPLE publishes PGV2 and PGV3 as AC manual motor starters for 50/60 Hz circuits up to 690 V. The official product page states overload, phase-loss and short-circuit protection plus infrequent motor starting, and cites IEC/EN 60947-4-1. PGV2 is listed up to 32 A and PGV3 up to 80 A, with separate setting-current, electromagnetic-trip, Icu and Ics tables. The product should be evaluated as a motor starter or MPCB family, not as a miniature circuit breaker for general distribution. Confirm that the exact model includes the protection functions your motor branch needs.
Before requesting a quote: Provide the motor output, full-load current, service factor, supply voltage, frequency, starting duty and expected locked-rotor current. State the required trip class, enclosure, operator type and whether auxiliary contacts or releases are needed. Ask for the exact PGV2 or PGV3 model, setting range, fixed magnetic trip value, Icu and Ics at the operating voltage, power-loss data, contactor coordination, dimensions and applicable certificate. Confirm the legal entity and factory for the quotation.
Official sources: PGV2 and PGV3 manual motor starter · Motor protection circuit breaker category · contact page.
3. TENGEN Electric
Short name: TENGEN
Published location: Sulv Industrial Zone, Liushi, Yueqing
TENGEN publishes the TGD1-32 AC motor circuit breaker for three-phase squirrel-cage motors, with overload, open-phase and short-circuit protection plus infrequent starting control. The published data gives a 32 A frame, rated working voltages of 230/240, 400/415, 440, 500 and 690 V, and trip class 10A. The product page also lists rated ultimate and service short-circuit breaking capacities by model. Those figures should be read at the actual operating voltage. A 32 A frame does not mean every trip unit covers 32 A, so select the setting range around the motor nameplate current.
Before requesting a quote: Send the motor nameplate, starting method, acceleration time, supply voltage, frequency, prospective fault current and ambient conditions. Ask which TGD1-32 trip unit covers the full-load current, and request the exact setting range, magnetic trip, Icu and Ics at the operating voltage, power loss per pole, terminal capacity and dimensions. Confirm whether auxiliary contacts or an enclosure are required, whether the breaker can be used as a disconnector in your arrangement, and which legal entity and production site will supply the order.
Official sources: Motor circuit breaker category · TGD1-32 AC motor circuit breaker · contact page.
4. HUYU Electric
Short name: HUYU
Published location: Wenzhou Bridge Industrial Park, Beibaixiang, Yueqing
HUYU publishes the DZ108 motor protection circuit breaker and a more detailed HYD1 range. The HYD1 page describes overload, phase-loss and short-circuit protection with isolation and manual switching for three-phase squirrel-cage motors. It lists HYD1-32, HYD1-32X, HYD1-32P and HYD1-80 configurations, separate thermal setting ranges, push-button and rotary operation, IP20 breaker bodies and model-specific accessories. The 80 A frame designation does not mean every HYD1-80 configuration adjusts to 80 A. Use the trip-unit range and operating voltage, not the frame name, to select the model.
Before requesting a quote: Provide the motor full-load current, supply voltage, frequency, starting current and acceleration time, plus the required trip class and fault level. State whether you need push-button or rotary operation, an IP55 enclosure, padlocking, auxiliary contacts, undervoltage release or shunt release. Ask for the exact HYD1 model and thermal range, Icu and Ics at each relevant voltage, power-loss data, dimensions, wiring diagram and accessory compatibility. Confirm the production site and the certificate or test document covering the selected model.
Official sources: DZ108 motor protection circuit breaker · HYD1 motor protection circuit breaker · contact page.
5. Changan Group
Short name: CHANGAN
Published location: No. 288 Wei 17th Road, Yueqing Economic Development Zone
Changan publishes the CS2 motor protection circuit breaker as a motor-protection product with CS2-32 and CS2-80 frame options. The official product page states AC 690 V, overload and short-circuit protection, phase-failure protection, trip class 10A for the listed frames and references IEC/EN 60947-2 and IEC 60947-4-1. It also provides separate setting-current, tripping-class and short-circuit breaking-capacity tables. These tables matter because the CS2-32 and CS2-80 frames do not share one universal rating. Match the trip unit to the motor current and check the breaking capacity at the actual supply voltage.
Before requesting a quote: Send the motor nameplate current, voltage, frequency, starting duty, required trip class, prospective fault current and ambient temperature. Ask for the exact CS2-32 or CS2-80 model, setting range, magnetic trip current, Icu and Ics at the operating voltage, rated power, power loss, poles, terminals, dimensions and mounting arrangement. Confirm the available auxiliary contacts, releases and enclosure options, then request the certificate, test report or declaration that names the offered model and production site.
Official sources: CS2 motor protection circuit breaker · MPCB category · contact page.
6. Zhejiang Kripal Electric Co., Ltd.
Short name: KRIPAL
Published location: Zhongfang Intelligent Industrial Park, Beibaixiang, Yueqing; also lists Daqiao Industrial Zone
Kripal publishes the UKS-M3207 motor protector for AC 50/60 Hz motors up to 690 V. The product page states protection against overload, short circuit and phase failure, infrequent start-stop control and conformity with IEC 60947-4-1 and IEC 60947-2. It also presents the device as a motor protector rather than a general-purpose MCB. The contact page lists more than one Yueqing address, so the quotation should identify the legal seller and the factory responsible for the exact model. Ask for the current setting range and breaking-capacity table rather than selecting from the product name alone.
Before requesting a quote: Provide the motor full-load current, voltage, frequency, starting method, acceleration time, required trip class and prospective fault current. Ask for the exact UKS-M3207 variant, current setting range, magnetic trip, rated insulation and operating voltages, Icu and Ics, poles, power loss, terminals, dimensions and mounting data. Confirm available auxiliary contacts, releases and enclosures. Request the model-specific standard evidence and identify which Yueqing address will produce and ship the order.
Official sources: UKS-M3207 motor protector · UKS series motor protector category · contact page.
7. Yueqing Hongxi Electric Co., Ltd.
Short name: HONGXI
Published location: No. 8278 Liuhuang Road, Liushi, Yueqing
Hongxi publishes HGV2 and HGV3 motor protection circuit breakers for AC systems up to 690 V. The product page describes overload, phase-failure and short-circuit protection, adjustable thermal trip, fixed magnetic trip, push-button or rotary control and infrequent starting of squirrel-cage motors. It gives an HGV2 range of 0.1 A to 63 A and an HGV3 range up to 80 A, with model-level current and magnetic-trip tables. The site also refers to partner factories, so the buyer should establish whether the quoted product is made by Hongxi or by a named partner and which legal entity appears on the documents.
Before requesting a quote: Send the motor nameplate current, supply voltage, frequency, starting current, acceleration time, trip class and fault level. Ask for the exact HGV2 or HGV3 model, thermal setting range, fixed magnetic trip current, Icu and Ics at the actual voltage, power loss, poles, terminal capacity and dimensions. Confirm whether auxiliary contacts, releases, an enclosure or padlocking are required. Ask for the product datasheet, current standard evidence, manufacturer name, production address and change-control arrangements.
Official sources: HGV2 and HGV3 motor protection circuit breakers · 63 A adjustable motor protection example · contact page.
8. JOYELEC
Short name: JOYELEC
Published location: Houan Industry Area, North Baixiang, Yueqing
JOYELEC publishes a motor protection circuit breaker category covering motor starter protectors such as CL1018 and GV2ME14. The category describes use up to 690 V for three-phase squirrel-cage motors, with overload and short-circuit protection and infrequent starting control. The published catalogue is useful for an initial comparison, but it does not by itself establish one common specification for every listed model. Ask for the exact model datasheet, setting range, breaking capacity and accessory list. The company also identifies both Wenzhou and Yueqing JOYELEC entities, so the quotation should name the selling and manufacturing entity.
Before requesting a quote: Provide the motor current, voltage, frequency, starting method, trip class, fault level and ambient conditions. State whether the requirement is for CL1018, GV2ME14 or another catalogue model, and ask for its full technical sheet rather than a family-level description. Request the setting range, magnetic trip, Icu and Ics, poles, terminals, dimensions, power loss, auxiliary contacts, releases and enclosure options. Confirm the legal seller, production site, applicable standard and model-specific evidence before approving a sample.
Official sources: Motor protection circuit breaker category · GV2ME14 motor starter protector · contact page.
9. Wenzhou Juhong Electric Co., Ltd.
Short name: JUHONG
Published location: Xiangyang Industrial Zone, Liushi, Yueqing
Juhong publishes a motor protector category with J3VE1, J3VE3, JGV2ME, GV2PM, GV2P and JGV3 variants. Its J3VE3 product page describes AC 50 Hz operation at 380 V and 660 V, a 0.1 A to 63 A range, overload and short-circuit protection, infrequent motor starting and reference to GB/T 14048.2 and IEC 60947-2. Other models in the same category should not be assumed to share those exact ratings. The buyer should choose by the model datasheet, trip unit and voltage-specific breaking capacity, then confirm the legal entity and production site for the order.
Before requesting a quote: Send the motor nameplate, starting duty, supply voltage, frequency, fault level and required trip class. State whether the preferred model is J3VE1, J3VE3, JGV2ME, GV2PM, GV2P or JGV3. Ask for the exact setting range, magnetic trip, Icu and Ics at the operating voltage, poles, terminals, dimensions, power loss and compatible accessories. Confirm whether the quotation covers a single MPCB or a coordinated starter, and request the model-specific standard evidence, production address and batch traceability.
Official sources: Motor protector (MPCB) category · J3VE3 rotary motor protector · contact page.
10. Saide Electric Co., Ltd.
Short name: SAIDE
Published location: 118 Fuhua Road, Wengyang Street, Yueqing
Saide publishes a motor-protector category with SDM7-32, SDM7-32P, SDM7-32X, SDM7-32ME, SDM7-80, SDM7-80ME and SDM7H variants. The range includes push-button and rotary operating styles and more than one frame size. The public product pages provide less model-level electrical detail than some other suppliers, so the exact setting range, breaking capacity, protection functions and accessories must come from the current datasheet. Saide's company page also presents a long operating history in Yueqing. Confirm the legal entity, production site and the standard evidence attached to the specific SDM7 model.
Before requesting a quote: Provide the motor full-load current, voltage, frequency, starting current and acceleration time, required trip class, prospective fault current and ambient temperature. Ask for the exact SDM7 model, frame, thermal setting range, magnetic trip, Icu and Ics at each relevant voltage, poles, terminals, dimensions and power loss. Confirm the operating style and available auxiliary contacts, releases, enclosure and padlocking. Request a complete datasheet, certificate or test evidence naming the model and factory before comparing price.
Official sources: Motor protector category · SDM7-32 motor protector · contact page.
Compare MPCBs on the complete motor branch
An MPCB is selected around the motor, the starter arrangement and the fault level at the installation point. Do not compare only the frame current or the headline voltage. Send every candidate the same motor data and ask for a model-specific quotation with written deviations.
| Include in your enquiry | Ask each supplier to confirm |
|---|---|
| Motor data | Rated output, full-load current, service factor, voltage, frequency, poles, efficiency, starting current and starting duration from the motor nameplate and datasheet. |
| Starting duty | Direct-on-line or other starting method, acceleration time, starts per hour, load inertia and whether the motor is heavy-duty, high-inertia or frequent-starting. |
| Current setting | Adjustable thermal range that contains the motor full-load current, setting method, scale resolution and the effect of ambient temperature and enclosure. |
| Magnetic trip | Fixed or adjustable magnetic trip value, tolerance, relationship to the thermal setting and suitability for the motor starting inrush. |
| Trip class | Trip class and time-current behaviour, particularly for class 10A, 20 or another declared motor-protection curve. |
| Voltage and poles | Rated operational and insulation voltage, frequency, number of poles, neutral arrangement where applicable and the actual voltage used for the breaking-capacity table. |
| Fault level | Prospective short-circuit current at the installation point, required Icu and Ics, backup protection and any cascading or coordination assumptions. |
| Standards | Applicable IEC 60947-4-1 requirements for the motor starter or protector and IEC 60947-2 requirements where the manufacturer declares them for the exact model. |
| Certificate scope | Current certificate, declaration or test report naming the exact model, ratings and production site; do not rely on a logo or a family-level claim. |
| Accessories | Auxiliary contacts, alarm contact, undervoltage release, shunt release, rotary handle, door-coupling handle, padlock provision, terminal shrouds and enclosure. |
| Mounting and connection | DIN-rail or panel mounting, terminal capacity, conductor type, tightening torque, dimensions, clearance, cable direction and replacement compatibility. |
| Commercial and factory data | Legal seller, production site, MOQ, sample charge, packaging, lead time, warranty, change-control procedure and the documents supplied with each batch. |
Do not choose an MPCB by frame size alone. A 32 A frame may contain several trip units with different setting ranges, and an 80 A frame may include a 16–25 A trip unit. Start with the motor full-load current, then check the setting range, magnetic trip, trip class and voltage-specific breaking capacity. Confirm that the selected device can be adjusted to the required current without sitting permanently at the bottom or top of its scale.
Check the complete starter combination. An MPCB may be used as a manual motor starter by itself or together with a contactor, overload relay, fuse or enclosure. The manufacturer’s coordination table, if published, should identify the exact combination and the prospective fault current it covers. Do not assume that a breaker tested alone makes every contactor-plus-MPCB combination suitable for the site fault level.
Separate the product claim from the document. A website may state IEC 60947-4-1, IEC 60947-2, CE or another reference for a family. For approval, request the current document that names the offered model and ratings. Check whether the certificate covers the production site and whether the marking on the sample matches the quotation. Market-access requirements differ by destination, so involve your compliance adviser where the motor branch is safety-critical.
What to inspect during an MPCB factory visit
Arrange the visit after the supplier has answered the technical schedule and identified the production site for the exact model. An MPCB factory may combine moulding, metal stamping, bimetallic-element assembly, calibration, contact assembly, magnetic-trip assembly, testing and packing. Follow the route that applies to your order rather than judging only the showroom sample.
- Bring the motor brief: include the motor nameplate, starting method, full-load current, voltage, frequency, trip class, fault level, accessories and target-market requirements.
- Review incoming parts: check bimetallic elements, contacts, coils, springs, moulded parts, terminals, labels and packaging against the approved bill of materials.
- Observe calibration: ask how the thermal setting and magnetic trip are adjusted, which reference pieces are used, how often the station is checked and how drift is controlled.
- Inspect assembly controls: look for poka-yoke, torque control, contact alignment, terminal security, screw retention and protection against mixing different trip units or frame variants.
- Review routine tests: confirm the dielectric test, mechanical operation, trip test, setting check and other tests specified for the exact product and standard.
- Compare the sample: verify the label, model, setting range, voltage, frequency, trip class, standard reference, terminal markings and accessories against the quotation.
- Check traceability: link the finished device or batch to critical components, calibration records, test results, carton labels and the production date.
- What a visit proves: a factory visit provides observations and answers, not a type test, certification review or guarantee of future quality. Keep design verification, product testing and market-access review as separate workstreams.
If you are travelling to Yueqing, BottomRace coordinates electrical sourcing and purchasing in Yueqing. Pro: $0 separate service fee; procurement service costs are included in the product quotation. Basic: 5% of product value, with a minimum service fee of $100, for your existing Yueqing suppliers. Compare our Pro and Basic services. For on-site meetings, see our factory visit services. The quotation confirms the scope, inspections, payment terms and any additional costs.
For related equipment, see our MCB guide, MCCB guide, contactor guide and relay guide.
Questions MPCB buyers often ask
Is an MPCB the same as a manual motor starter?
The terms overlap, but they are not always identical. A manual motor starter normally provides manual switching and motor overload protection, and many models also include a magnetic short-circuit trip. An MPCB is a circuit-breaker product intended for motor protection. Check the exact functions, the applicable standard and whether the manufacturer describes the device as a complete starter, a motor protector or a breaker for a specific use.
Can I use a normal MCB to protect a motor?
Not as a direct substitute unless the manufacturer specifies that model for the motor duty. A miniature circuit breaker may have a different magnetic-trip range, thermal behaviour and standard basis from an MPCB. Motor starting produces high inrush current, and the protection must allow normal acceleration while still responding correctly to overload and phase failure. Select a device intended for motor protection and check the complete starter coordination.
What is the difference between the frame current and the setting range?
The frame current describes the physical and electrical frame size. The setting range describes the adjustable thermal trip values available in a particular trip unit. A 32 A frame may contain a 0.1–0.16 A trip unit or a much higher range, while an 80 A frame may include a 16–25 A unit. Choose the setting range around the motor full-load current and do not use the frame number as the protected current.
Why do Icu and Ics matter?
Icu is the rated ultimate short-circuit breaking capacity, while Ics is the rated service short-circuit breaking capacity. They describe different post-fault expectations and should be read at the actual operating voltage. Compare them with the prospective fault current at the installation point, including the specified backup protection or coordination arrangement. A headline value at one voltage cannot be applied automatically to another voltage.
When do I need an auxiliary contact or release?
An auxiliary contact can report whether the MPCB is open or closed to a PLC, indicator or interlock. A shunt release trips the device from a control signal, and an undervoltage release trips or prevents closing when the control voltage is lost. The need depends on the starter scheme, remote-control strategy, safety function and panel design. Confirm accessory compatibility with the exact frame and operating style.
Does an IP20 rating make the MPCB suitable for outdoor use?
No. IP20 describes protection against access to hazardous parts and against a defined level of solid-object ingress; it does not make the device weatherproof. If the motor branch is installed outdoors, in a washdown area or in a dusty environment, select a suitable enclosure and check the resulting temperature rise, corrosion exposure and operating conditions. The enclosure rating and the breaker-body rating are separate.
Are these companies ranked by quality, price or export volume?
No. This is a research shortlist based on published product and location information. It is not a quality, price, certification, export or “best” ranking. Send every supplier the same motor data, compare deviations and documents, and verify the legal entity and production site before ordering.
Can BottomRace help arrange a Yueqing MPCB factory visit?
Yes. BottomRace provides electrical procurement support, factory screening, accompanied visits, English-Chinese interpretation and local coordination in Yueqing. We confirm the scope, availability and fees before you book. Email your motor data, target model family and preferred dates to contact@bottomrace.com.
Need help narrowing your MPCB shortlist?
Email the motor nameplate data, supply voltage, starting duty, trip class, fault level, quantities and destination market. We can discuss supplier screening and local support in Yueqing.