Looking for RCCB or RCBO manufacturers in Yueqing? The city’s low-voltage electrical cluster includes large groups, specialist circuit-protection suppliers and established component manufacturers. This research shortlist covers ten companies with a published RCCB or RCBO range, an official product source and a verifiable connection to Yueqing or the surrounding Wenzhou manufacturing base.
The two product types are related but not interchangeable. An RCCB provides residual-current protection only. An RCBO combines residual-current protection with overcurrent protection in one device. The correct choice depends on the circuit design, available board space, required discrimination and the local installation rules. Use this list to identify catalogues worth opening, then send every shortlisted supplier the same technical and commercial brief. If you are also building a panel bill of materials, see our Yueqing MCB, MCCB manufacturer, contactor manufacturer and surge protector manufacturer guides.
How this list was selected: Based on each manufacturer’s official product and location information, reviewed on 21 October 2026. This is a research shortlist, not a quality, price or export ranking. It does not imply that BottomRace has audited every factory, that every model is certified for your market or that the companies are interchangeable. Confirm the legal entity, production site and model-specific documents before requesting samples or arranging a visit.
Ten Yueqing RCCB and RCBO manufacturers to start your enquiry
The published focus below is a route into each catalogue, not a tested performance rating. Start with the function, pole arrangement and residual-current Type required by the design, then compare models on the same basis.
| Manufacturer | Published RCCB/RCBO focus | Useful first question |
|---|---|---|
| CHINT | NB3LE RCBO for final distribution | Which entity and plant will quote? |
| Changan Group | CAL and NT50LE RCCB/RCBO families | Is an RCCB or RCBO required? |
| People Electric | RDB5LE-63 residual-current device | Which RDB5LE variant fits the circuit? |
| VIOX Electric | VKL11 RCCB and VRL RCBO ranges | Which Type and VKL/VRL model apply? |
| HUYU Electric | HUM18LE and EXB3LY residual-current ranges | Which HUM18LE or EXB3LY model is offered? |
| Singi Electrical | SGB5HLM, DZ47LE and SGB5L families | Which SGB5 or DZ47LE model is quoted? |
| TENGEN Electric | TGB1NLE and TGBGLB residual-current devices | Which TGB model and pole set apply? |
| Kripal Electric | UKF7 RCCB and UKL RCBO families | Which UKF7, UKL or DZ47LE model? |
| Suntree Electric | SCB8LE-63 and SCB8LE-125 RCBO ranges | Which SCB8LE variant and option set? |
| DELIXI Electric | DZ47sLE RCBO and DZ47L RCCB families | Which DZ47sLE or DZ47L variant fits the circuit? |
Manufacturer profiles and questions to ask
1. CHINT
CHINT publishes the NB3LE residual current operated circuit breaker with over-current protection for 1P+N circuits. The published range covers 6A to 32A, 30mA residual sensitivity, 6kA short-circuit capacity and Type AC or Type A options, with the page identifying IEC/EN 61009-1 as the relevant standard. CHINT’s factory overview connects its low-voltage component manufacturing with Wenzhou, the wider prefecture that includes Yueqing, so the exact legal entity and production plant should be confirmed for the quoted RCBO.
Before requesting a quote: Confirm which CHINT entity and factory will supply the NB3LE variant, then request the exact catalogue number, Type AC or A version, B or C curve, rated current, breaking capacity and the model-level certificate or test document. Ask separately about RCCB options if the design does not need combined overcurrent protection.
Official sources: NB3LE RCBO product information · Company / location information.
2. Changan Group
Changan Group publishes separate RCCB and RCBO product pages. Its published range includes CAL and NT50LE references such as CAL7-40, CAL8-40M, CAL9-40 and NT50LE-32. The official contact page places the company at No. 288, Wei 17th Road, Yueqing Economic Development Zone. The separate pages are useful when a buyer needs to compare a residual-current-only device with an RCBO that also provides overcurrent protection.
Before requesting a quote: State whether the circuit needs an RCCB or an RCBO, then ask for the exact CAL or NT50LE model, number of poles, rated current, residual operating current, trip curve, short-circuit capacity and residual making and breaking capacity. Request drawings and the document that covers the quoted variant.
Official sources: RCCB range · RCBO range · Company / location information.
3. People Electric
People Electric publishes an official product page for the RDB5LE-63 and places its People Industrial base in Liushi, Wenzhou. The page is useful as a route into the company’s residual-current range, but its public snapshot does not provide a complete technical schedule for the model. Do not infer the function, residual-current Type, ratings or standard from the series name alone; request the current datasheet and model-specific document.
Before requesting a quote: Confirm whether the RDB5LE-63 is offered as an RCCB or an RCBO, then send the system voltage, number of poles, load current, required residual sensitivity, trip curve and expected short-circuit level. Ask for the exact catalogue number, neutral arrangement, breaking capacity and current test evidence rather than a general catalogue statement.
Official sources: RDB5LE-63 product information · Company / location information.
4. VIOX Electric
VIOX publishes the VKL11 RCCB family, including VKL11, VKL11F, VKL11B and VKL11-EV variants, with Type AC, A, F and B options. Its RCBO pages cover the VRL7E, VRL22, VRL22F and VRL22B families. The official contact page gives East Innovation Zone, Wengyang Town, Yueqing. The catalogue is relevant when a buyer wants to compare conventional residual-current protection with Type A, F or B devices and EV-oriented variants.
Before requesting a quote: Confirm the exact VKL11 or VRL model, residual-current Type, sensitivity, rated current, poles, trip curve, short-circuit capacity and whether the neutral is switched. For EV charging, explain the DC residual-current protection strategy rather than relying on a product-series headline.
Official sources: VKL11 RCCB range · VRL RCBO range · Company / location information.
5. HUYU Electric
HUYU Electric publishes RCCB and RCBO categories that include the HUM18LE-63 and EXB3LY-63 families. The company presents these products alongside its broader low-voltage distribution and control catalogue, which is useful when an enquiry combines residual-current devices with MCBs, contactors or other panel components. Its official site gives Wenzhou Bridge Industrial Park, Beibaixiang Town, Yueqing as the company address.
Before requesting a quote: Request the exact HUM18LE or EXB3LY model, residual-current Type, sensitivity, rated current, poles, curve and breaking capacity. Ask whether the offered device is an RCCB or RCBO, confirm the neutral configuration and obtain the model datasheet and test document for the destination market.
Official sources: RCCB category · RCBO category · Company / location information.
6. Singi Electrical
Singi Electrical publishes RCCB and RCBO categories with models including SGB5HLM-63, DZ47LE-63, SGB5L-40 and SGB5L-60. Its wider catalogue covers MCBs, MCCBs, distribution boxes and other panel products, so the residual-current range can be reviewed alongside related components. The official contact page places the company in Yueqing Economic Development Zone.
Before requesting a quote: Ask which model is an RCCB and which is an RCBO, then confirm the rated current, poles, residual sensitivity, trip curve, breaking capacity and terminal capacity. Request the exact datasheet, certificate scope and OEM marking requirements if the order is private-label.
Official sources: RCCB range · RCBO range · Company / location information.
7. TENGEN Electric
TENGEN, known in Chinese as Tianzheng, publishes RCCB and RCBO ranges with models including TGB1NLE-63Y, TGBGLB-63, TGB1NL-40 and TGB1NLE-32/63. Its RCCB page describes 16A to 80A products in 2P, 4P, 1P+N and 3P+N arrangements. The RCBO range includes 6A to 63A examples, with short-circuit capacity and configuration varying by model. The official contact page gives Sulv Industrial Zone, Liushi Town, Yueqing.
Before requesting a quote: Confirm the exact TGB model, RCCB or RCBO function, pole arrangement, rated current, residual sensitivity, trip curve and breaking capacity. Ask whether the quoted device has a switched neutral and request the model drawing, certificate scope and test evidence.
Official sources: RCCB range · RCBO range · Company / location information.
8. Kripal Electric
Kripal Electric publishes the UKF7-63 RCCB and RCBO families including UKL2 and UKL7-40, together with DZ47LE-32N and DZ47LE-125 models. The product catalogue also includes MCBs, MCCBs and other low-voltage components. Its official contact page gives addresses in Daqiao Industrial Zone and Zhongfang Intelligent Industrial Park, Beibaixiang Town, Yueqing.
Before requesting a quote: Specify the application and ask for the exact UKF7, UKL or DZ47LE model. Confirm rated current, poles, residual sensitivity, curve, short-circuit capacity, neutral switching and terminal capacity, then ask which production site and legal entity will supply the order.
Official sources: RCCB range · RCBO range · Company / location information.
9. Suntree Electric
Suntree publishes RCCB and RCBO categories, including the SCB8LE-63 and SCB8LE-125 earth-leakage circuit-breaker ranges. The company also presents AC and DC breakers, surge protection and distribution products, which can be useful for a combined panel or solar-system bill of materials. Its official contact information gives No. 3 Siqian Road, Xinguang Industrial Zone, Liushi Town, Yueqing.
Before requesting a quote: Confirm whether the SCB8LE model is an RCBO or a residual-current device with additional options, then ask for the exact voltage, current, poles, residual sensitivity, curve and breaking capacity. Request the product drawing and the document covering the specific variant and destination market.
Official sources: RCCB/RCBO category · SCB8LE-63 product information · Company / location information.
10. DELIXI Electric
DELIXI Electric publishes official documentation for the DZ47sLE RCBO and the DZ47L residual current operated circuit breaker. The DZ47sLE document identifies the product as an RCBO and references GB/T 16917.1. The DZ47L manual describes DZ47L-63 and DZ47L-100 RCCBs with 30mA, 100mA or 300mA residual operating current and AC or A types, referencing GB/T 16916.1 and IEC 61008-1. DELIXI’s official contact page gives the Delixi High-Tech Industrial Park in Liushi Town, Yueqing.
Before requesting a quote: Confirm whether the circuit requires the DZ47sLE RCBO or the DZ47L RCCB, then request the exact catalogue number, rated current, poles, residual operating current, AC or A type, trip curve where applicable, breaking capacity and neutral arrangement. Ask which legal entity and production site will supply the order and obtain the model-specific datasheet, certificate scope and test document for the destination market.
Official sources: DZ47sLE RCBO product document · DZ47L RCCB manual · Company / location information.
Compare RCCB and RCBO quotations on the same basis
An RCCB and an RCBO perform different jobs. An RCCB detects residual current and trips the circuit, but it does not replace a fuse or circuit breaker for overload and short-circuit protection. An RCBO combines both functions, which can simplify a final-distribution board and make a single outgoing circuit easier to isolate, but it is not automatically the right choice for every installation. The system designer must decide what protection is required at each point and how the devices will discriminate with upstream protection.
Residual-current sensitivity, shown as IΔn, is commonly 30mA, 100mA or 300mA, but the correct value depends on the application and local rules. A 30mA device is often used for additional protection against electric shock where required, but it should not be treated as a universal substitute for basic insulation, earthing, isolation or overcurrent protection. Selective or time-delayed devices may be needed upstream, and the manufacturer’s instructions must be followed.
The residual-current Type also matters. Type AC responds to alternating residual current. Type A also responds to pulsating direct residual current. Type F adds capability for certain mixed-frequency residual currents, and Type B is intended for smooth direct residual current and other defined waveforms. EV charging is a particular example: depending on the charger design, market rules and installation, a Type B device or a Type A device combined with 6mA DC residual-current detection may be required. Do not choose the Type from a catalogue badge alone.
For an RCBO, also compare the overcurrent protection: rated current, trip curve, rated voltage, frequency and short-circuit capacity. For an RCCB, compare the residual making and breaking capacity and the associated short-circuit protection arrangement. Both product types need the correct pole configuration: 1P+N, 2P, 3P+N or 4P. Check whether the neutral is switched, whether the device is intended for a specific earthing arrangement and how the terminals and DIN-rail width fit the board.
IEC/EN 61008-1 is the standard commonly referenced for RCCBs, while IEC/EN 61009-1 is commonly referenced for RCBOs. A standards reference on a web page is not proof that a particular catalogue number holds a certificate for your destination market. Ask for the certificate, test report or declaration that names the exact model, ratings, Type and variant. Check its scope and validity with the issuer or your compliance adviser where market access is critical.
| Include in your enquiry | Ask the supplier to confirm |
|---|---|
| Function | RCCB only, or RCBO with combined overload and short-circuit protection; state where the device sits in the distribution design. |
| Electrical system | Rated voltage, frequency, number of phases, neutral arrangement, earthing system and expected short-circuit level. |
| Residual current | Required IΔn, Type AC, A, F or B, selective or instantaneous behaviour and any DC residual-current requirement. |
| Current and curve | Rated current and trip curve for an RCBO; upstream overcurrent device and coordination for an RCCB. |
| Breaking performance | Short-circuit capacity for an RCBO; residual making and breaking capacity and associated protection for an RCCB. |
| Poles and neutral | 1P+N, 2P, 3P+N or 4P; whether the neutral is switched; terminal arrangement and wiring direction. |
| Mechanical fit | DIN-rail width, dimensions, terminal capacity, torque, test-button position, status indicator and access for testing. |
| Environment and coordination | Surge immunity, selectivity, earth-fault loop, enclosure, ambient temperature and coordination with upstream protection. |
| Documents and market access | Current datasheet, drawing, manual, test evidence, certificate scope and declaration covering the exact model and destination. |
| Commercial package | MOQ, sample cost, OEM terms, packing, lead time, Incoterms, warranty and spare or accessory availability. |
Do not compare a 30mA Type AC RCCB with a 30mA Type A RCBO as if they were the same product. Write down the function, Type, sensitivity, poles, current rating, curve and breaking performance you require, then require each supplier to quote against that schedule or explain a deviation in writing.
Turn the shortlist into a productive RCCB or RCBO factory visit
Arrange visits after the supplier has answered the technical schedule and identified the production site for the exact model. A sales office may be separate from the factory, and a broad electrical group may produce different product families at different locations.
- Bring the electrical brief: include the function, voltage, poles, current, residual Type, sensitivity, curve, breaking capacity, quantity and destination market.
- Agree the visit checklist: identify the relevant incoming inspection, moulding, coil or electronic assembly, calibration, residual-current test, overcurrent test, marking and packing stages.
- Compare the sample with the quotation: check the model label, IΔn, Type, current, curve, poles, neutral switching, test button, indicator and terminals against the datasheet.
- Review traceability: ask how finished devices are linked to production batches, critical components, calibration records and carton markings.
- Confirm what the visit proves: a factory visit provides observations and answers, not a type test, certification review or guarantee of future production quality. Arrange product testing and market-access checks separately.
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.
Questions buyers often ask
Should I choose an RCCB or an RCBO?
Choose an RCCB when residual-current protection is required separately and overcurrent protection is already provided by a suitable breaker or fuse. Choose an RCBO when you need combined residual-current and overcurrent protection for an outgoing circuit and the board design supports it. The decision also depends on discrimination, selectivity, panel space, isolation and local installation rules.
Is 30mA always the right residual-current sensitivity?
No. 30mA is common for additional protection against electric shock where required, but 100mA or 300mA devices may be appropriate for other parts of the installation, and selective devices may be needed to achieve discrimination. The correct value depends on the circuit, earthing arrangement, upstream devices and applicable local rules. Do not change sensitivity merely to stop nuisance tripping without finding the cause.
Can I use a Type AC device for EV charging?
Do not assume so. EV charging can produce smooth DC residual current, and the required protection depends on the charger design, installation and market. A Type B device, or a Type A device combined with 6mA DC residual-current detection, may be specified. Confirm the complete charging-system design and the applicable standard with the charger manufacturer and a qualified electrical designer.
Does a page mentioning IEC 61009-1 prove the product is certified?
No. It shows that the product is described against that standard, but it does not prove that the exact catalogue number, Type, rating and factory are covered by a valid certificate for your market. Ask for the certificate or test document, check the model and ratings named in it, and verify the scope with the issuer or your compliance adviser.
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 or export ranking. Ask every supplier to quote the same specification, compare technical deviations and document packages, and verify the legal entity and production site before ordering.
Can BottomRace help arrange a Yueqing RCCB or RCBO 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 product brief and preferred dates to contact@bottomrace.com.
Need help narrowing your RCCB or RCBO shortlist?
Email the function, system voltage, poles, current, residual-current Type, sensitivity, trip curve, breaking capacity, quantity and destination market. We can discuss supplier screening and local support in Yueqing.