Looking for surge protector manufacturers in Yueqing? The city has a deep low-voltage electrical supply base, and its SPD suppliers range from large groups with broad catalogues to specialists focused on DIN-rail surge protection and photovoltaic devices. This research shortlist covers ten companies with a published surge-protection range, an official product source and a verifiable connection to Yueqing.
A surge protective device is not selected by discharge current alone. The installation location, AC or DC system, earthing arrangement, nominal system voltage, required test class, short-circuit withstand and coordination with upstream protection all affect the correct model. Use this list to decide which catalogues to open first, then send every shortlisted supplier the same written brief. If you are also comparing circuit breakers and control products, see our Yueqing MCB, MCCB manufacturer and contactor 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. Confirm the legal entity, production site and model-specific documents before requesting samples or arranging a factory visit. Inclusion does not imply that BottomRace has audited every factory or that every product is certified for your destination market.
Ten Yueqing surge protector manufacturers to start your enquiry
The useful starting point is the application: AC service entrance, AC sub-distribution, terminal equipment, photovoltaic array or another DC circuit. The published focus below is a route into each catalogue, not a tested performance rating.
| Manufacturer | Published SPD focus | Useful first question |
|---|---|---|
| CHINT | U4 surge protective devices in a UL final-distribution range | Is the U4 model the intended UL solution? |
| THOR | AC, DC, PV, signal and Type 1 to Type 3 surge protection | Which Type and installation position apply? |
| LEITAI | AC SPDs, PV SPDs and low-residual-voltage ranges | Which AC or PV model fits the circuit? |
| VIOX Electric | AC Type 2 and photovoltaic DC SPD examples | Which VIOX model matches the voltage? |
| BENY | AC SPDs within a solar and electrical component catalogue | Is the AC and DC side quoted separately? |
| TENGEN Electric | TGDY55 surge protectors across multiple test classes | Is the headline current Imax or Iimp? |
| Leikexing | AC and DC Type 1, Type 1+2 and Type 2 ranges | Which standard covers the exact model? |
| Lovadon | AC Type 2 and PV/DC surge-protection series | Is this an AC or a PV/DC device? |
| People Electric | Surge protection within a broad low-voltage catalogue | Which RDU8DC variant is offered? |
| Kripal Electric | SPI, SPB, SPC and SPD surge-protector families | Which Class and model are quoted? |
Manufacturer profiles and questions to ask
1. CHINT
CHINT publishes surge protective devices within its UL final-power-distribution portfolio, including the U4 range. The product source is useful for buyers working to UL-oriented requirements, but it should not be read as evidence that the same models cover IEC markets or every CHINT SPD series. CHINT’s official factory information also connects the group’s low-voltage manufacturing to Wenzhou, the wider prefecture that includes Yueqing.
Before requesting a quote: Ask which legal entity and plant will quote, whether the U4 range is the intended UL solution, and which file or certificate covers the exact catalogue number. Request the model datasheet, wiring diagram, short-circuit current rating and backup-protection instructions.
Official sources: SPD product information · Company / location information.
2. THOR
THOR presents a dedicated surge-protection catalogue covering AC, DC and photovoltaic devices, signal protection and lightning-protection boxes. Its published range includes Type 1, Type 1+2, Type 2 and Type 3 products, which makes the site useful for comparing several installation positions before narrowing the brief. The company’s contact information places it in Qianyangdong Industrial Zone, Liushi, Yueqing.
Before requesting a quote: Confirm the exact application, test class, Uc, In, Imax or Iimp and Up for the model offered. Ask whether the product is for the service entrance, sub-distribution or terminal equipment, and request the coordination and backup-fuse instructions for the complete circuit.
Official sources: SPD product information · Company / location information.
3. LEITAI
LEITAI publishes surge protective devices, photovoltaic SPDs, low-residual-voltage SPDs, varistors and related lightning-protection products. Its official contact page gives Zhenmin Road 17#, Sibanqiao Industrial Zone, Liushi Town, Yueqing, so the company is directly relevant to a local Yueqing sourcing enquiry. The published range is broad enough to support an initial discussion about AC distribution and PV circuits.
Before requesting a quote: State whether the circuit is AC or DC and send the system voltage, earthing arrangement and expected surge exposure. Ask for the exact model, test class, Uc, In and Imax or Iimp, Up, status indication, remote contact option and the document that covers the quoted configuration.
Official sources: SPD product information · Company / location information.
4. VIOX Electric
VIOX publishes AC Type 2 surge-protection examples such as the VSP1-C40/2(S), together with PV models including the VSP1-C40PV/3(S) for 600V, 1000V and 1500V DC systems. Its official contact page gives East Innovation Zone, Wengyang Town, Yueqing. The catalogue is a useful reference for buyers comparing a defined AC range with PV-specific model options.
Before requesting a quote: Separate the AC and DC requirements and quote each circuit separately. Confirm the exact model, pole count, Uc, In, Imax, Up, indication method and any remote-signalling option. For PV, ask whether the device is suitable for the array’s earthing arrangement and required DC voltage.
Official sources: SPD product information · Company / location information.
5. BENY
BENY publishes AC surge protective devices alongside its solar electrical components. Its official AC SPD page identifies products for AC-side surge protection, while the wider catalogue covers photovoltaic and energy-related equipment. The company’s published address is on Changjiang Road, Beibaixiang Town, Yueqing. It is a candidate when an enquiry combines AC distribution protection with a solar-system bill of materials.
Before requesting a quote: Do not assume that an AC SPD page also covers the PV DC side. Ask for the exact AC model and, if required, a separate PV DC model with its own Uc, voltage, pole and earthing requirements. Confirm the certificate, backup protection and remote-contact options for each model.
Official sources: SPD product information · Company / location information.
6. TENGEN Electric
TENGEN, known in Chinese as Tianzheng, publishes the TGDY55 surge-protector range with a stated maximum discharge current span of 15kA to 160kA and configurations from 1P through 4P. Its published material covers test classifications I, II and III, so buyers can begin with the installation position and required class rather than choosing by current alone. The international contact page gives Sulv Industrial Zone, Liushi Town, Yueqing.
Before requesting a quote: Ask for the exact TGDY55 model, its test class and the values that apply to that class. Clarify whether the headline current is Imax or Iimp, then confirm Uc, Up, pole configuration, status indication, remote signalling and the specified backup protective device.
Official sources: SPD product information · Company / location information.
7. Leikexing
Leikexing publishes AC and DC surge-protection ranges described as Type 1, Type 1+2 and Type 2 products. Its technical pages reference GB/T 18802.11, GB/T 18802.31, IEC 61643-11 and IEC 61643-31, which helps identify the standards a buyer may need to discuss. Those references should not be treated as proof of certification for every model. The official contact page gives Shangpu 2nd Road, Liushi Town, Yueqing.
Before requesting a quote: Send the system type, voltage, earthing arrangement, installation location and required nominal discharge current. Ask which standard and edition the exact model is tested against, then request the test document, declaration and backup-fuse or breaker coordination table rather than relying on a standards logo.
Official sources: SPD product information · Company / location information.
8. Lovadon
Lovadon publishes AC Type 2 surge protective devices and PV or DC models across series including NDU1, NDU6 and NDU8. Its official contact page gives No. 888 Liujiang Road, Beibaixiang Town, Yueqing. The range is relevant to buyers who want to compare modular AC protection with dedicated PV products from the same supplier.
Before requesting a quote: Confirm whether the quotation is for an AC Type 2 device or a PV/DC model, and do not use the two interchangeably. Ask for Uc, In, Imax, Up, pole count, DC voltage, indication, remote contact and the applicable test evidence for the exact model.
Official sources: SPD product information · Company / location information.
9. People Electric
People Electric publishes surge-protection products alongside circuit breakers, contactors and other low-voltage categories, including an RDU8DC series for DC applications. Its official site identifies People Industry, Liushi, Wenzhou and describes the group as headquartered in Yueqing. A broad catalogue can be useful when the sourcing brief includes several electrical categories, but each product still needs a model-specific review.
Before requesting a quote: Separate the SPD requirement from the rest of the electrical order. Confirm whether the offered model is AC or DC, its test class, Uc, discharge-current values, Up, poles and accessories. Ask which legal entity and production site will supply the exact model and request its model-level documents.
Official sources: SPD product information · Company / location information.
10. Kripal Electric
Kripal publishes surge-protector families including the SPI series described as a Class B device, plus SPB3, SPC5 and SPD5 models with published Class B, C and D descriptions. It also publishes a separate photovoltaic DC surge protector range. Its official contact information gives addresses in Zhongfang Intelligent Industrial Park and Daqiao Industrial Zone, Beibaixiang Town, Yueqing.
Before requesting a quote: Treat the published Class B, C or D label as a starting point, not as a substitute for the technical schedule. Ask for the exact model, AC or DC application, Uc, In, Imax or Iimp, Up, pole count, status indication, remote contact and backup-protection requirement. Request the test document covering the quoted variant.
Official sources: SPD product information · Company / location information.
Compare surge protectors on the same system and duty
An SPD quotation becomes difficult to compare when one supplier offers a Type 2 module, another offers a Type 1+2 device and a third quotes a PV product with a different pole arrangement. Write the electrical design first, then ask every supplier to quote against it or explain a technical deviation in writing.
For an AC system, Type or Class 1 devices are generally associated with high surge exposure and direct-lightning-current testing, Type 2 with distribution boards and Type 3 with equipment close to the load. The final choice belongs to the system designer and must reflect the installation standard, exposure, earthing and coordination. For PV DC circuits, use a device intended for DC and confirm its maximum continuous operating voltage against the array’s worst-case voltage, including temperature effects.
The main published values have different meanings. Uc is the maximum continuous operating voltage. In is nominal discharge current, Imax is maximum discharge current and Iimp is impulse discharge current used in Type 1 testing. Up is voltage protection level, which must be considered with the withstand capability of the equipment being protected. Also ask for the SPD’s short-circuit current rating and the manufacturer’s backup fuse or breaker requirement.
| Include in your enquiry | Ask the supplier to confirm |
|---|---|
| System and application | AC or DC, nominal and maximum voltage, frequency where applicable, installation position and the equipment being protected. |
| Earthing and poles | TN, TT or IT arrangement for AC; PV array earthing and conductor configuration for DC; required 1P, 2P, 3P, 4P or other pole arrangement. |
| Test class | Type or Class 1, 1+2, 2 or 3 as required by the design, with the standard and edition used for the exact model. |
| Discharge performance | Uc, In, Imax or Iimp and Up, with each value tied to the quoted catalogue number rather than a series headline. |
| Short-circuit coordination | SPD short-circuit current rating, upstream protective device, maximum backup fuse or breaker and the manufacturer’s coordination instructions. |
| Status and signalling | Visual end-of-life indicator, replaceable cartridge arrangement and optional remote signalling contact, including contact type and rating. |
| Mechanical fit | DIN-rail width, dimensions, terminal capacity, torque, mounting direction and minimum conductor length required by the installation instructions. |
| Documents and market access | Current datasheet, dimensions, installation manual, test evidence and any certificate or declaration covering the exact model and destination market. |
| Commercial package | MOQ, replacement-cartridge availability, sample cost, OEM terms, packing, lead time, Incoterms and warranty. |
Read the certificate and test report against the model code, voltage, pole configuration and product variant. A document for a related SPD, a general statement that a factory works to a standard, or a catalogue logo does not prove that the exact item in your quotation has the required approval. Where market access matters, verify the document with the issuing body or your compliance adviser.
Turn the shortlist into a productive SPD factory visit
Arrange visits after the supplier has answered the technical schedule and identified the production site for your 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 system type, voltage, earthing, test class, discharge values, pole count, quantity and destination market.
- Agree the visit checklist: identify the relevant incoming inspection, assembly, potting or sealing, calibration, testing, marking and packing stages.
- Compare the sample with the quotation: check the model label, Uc, In, Imax or Iimp, Up, poles, status window, cartridge type and terminals against the datasheet.
- Review traceability: ask how finished SPDs are linked to batches, incoming components, test 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
What is the difference between Type 1, Type 2 and Type 3 SPDs?
The types describe different test and application contexts. Type 1 is associated with high surge exposure and impulse-current testing, Type 2 with distribution-board protection and Type 3 with equipment near the load. Selection also depends on the installation standard, earthing system, exposure and coordination with other protective devices. Do not choose a type solely from a catalogue headline.
Can an AC surge protector be used on a PV DC circuit?
Do not assume so. DC arcs are more difficult to interrupt, and PV arrays have specific voltage, earthing and isolation requirements. Use a product explicitly intended for the DC application, and confirm its maximum continuous operating voltage, pole arrangement, test standard and installation instructions.
Is a higher Imax always better?
No. The required discharge performance depends on the exposure and design, while Uc, Up, short-circuit rating, coordination and physical fit also matter. A higher headline current does not compensate for a voltage rating that is too low, an unsuitable protection level or a missing backup-protection instruction.
Does this list identify the best or cheapest supplier?
No. It 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 surge protector 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 surge protector shortlist?
Email the AC or DC system, voltage, earthing arrangement, required test class, discharge values, pole count, quantity and destination market. We can discuss supplier screening and local support in Yueqing.