4P AC DC T2 Surge Arrester | Westhomes WCU1-40 40kA 385VAC
4P T2 AC DC surge safety with Westhomes WCU1-40! 40kA protection, 275/385VAC range, multiple pole options & durable 20,000-cycle design for industrial use.
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Westhomes WCU1-40 4P T2 surge arrester delivers 40kA protection for 275/385VAC AC DC systems. 1-4P options, 20k operations lifespan & fast DIN rail installation.
4P T2 AC DC surge safety with Westhomes WCU1-40! 40kA protection, 275/385VAC range, multiple pole options & durable 20,000-cycle design for industrial use.

Westhomes WCU1-40 4P T2 surge arrester delivers 40kA protection for 275/385VAC AC DC systems. 1-4P options, 20k operations lifespan & fast DIN rail installation.
Key Features:
T2 Surge Protection Rating: Complies with Type 2 surge protection standards, providing professional defense against indirect lightning strikes and voltage transients in industrial environments.
Multi-Pole Configurations: Supports 1P, 2P, 3P, and 4P electrical connections (as highlighted in product specs), adapting to diverse industrial circuit requirements.
Extended Lifespan: Engineered for 20,000 electrical and mechanical operations, ensuring long-term reliability in high-demand industrial applications.
Customizable Parameters: Tailorable electrical specs (a core product feature) to match specific industrial application needs, enhancing versatility.
Applications:
Heavy Machinery Electrical Circuits
Data Center Power Systems
Commercial Building Electrical Networks
| Model | Rated Voltage(Uo) | Maximum sustained voltageUc(V) | Protection levelUP(KV) | Maximum Current Imax(ka) | Nominal Discharge Current In(ka) | Response Time Ns | TEMP℃ |
| WCU8-D/10 | 230V/400V | 385 | 0.7/10 | 10 | 5 | <25 | -40~+80℃ |
| WCU8-D/20 | 1.5 | 20 | 10 | ||||
| WCU8-C/30 | 2.0 | 30 | 15 | ||||
| WCU8-C/40 | 2.0 | 40 | 20 | ||||
| WCU8-B/60 | 2.3 | 60 | 30 | ||||
| WCU8-B/80 | 3.3 | 80 | 40 | ||||
| WCU8-B/100 | 3.3 | 100 | 60 | ||||
| N-PE | 275/320 | 1.0/1.5 | 20/40/60 | <100 |
| Selling Units | Single item |
| Quantity (pieces) | 1 – 1,000 | > 1,000 |
| Lead time (days) | 30 | To be negotiated |
| Max Discharge Current | 40 kA |
| Application | Electronic Equipment, Industrial, Lightning Protection, Power System, Solar System |
| Model Number | WCU1-40 |
| Brand Name | Westhomes |
| Type | T2 |
| Material | Plastic |
| Place of Origin | Zhejiang, China |
A 4P AC DC T2 Surge Arrester is a surge protection device designed to protect electrical equipment from transient overvoltages caused by lightning strikes, switching operations, and other electrical disturbances. The 4-pole configuration provides protection for multi-conductor systems, while the T2 classification is mainly used for secondary surge protection in low-voltage installations.
T2 refers to a Type 2 surge protection device (SPD) designed to protect electrical systems against induced surge currents and switching overvoltages. It is commonly installed in distribution boards and downstream electrical panels to provide additional protection for connected equipment.
4P means the surge arrester has four protection poles. A 4-pole SPD is commonly used in three-phase systems with neutral, providing protection between phases and neutral or earth according to the system configuration.
A 4P T2 Surge Arrester is suitable for residential, commercial, and industrial low-voltage electrical systems, including distribution cabinets, control panels, power distribution systems, and equipment protection applications.
A T1 surge arrester is designed to handle high-energy lightning impulse currents and is usually installed at the service entrance of buildings. A T2 surge arrester is mainly used for protection against induced surges and switching overvoltages inside electrical installations.
Yes. A T2 Surge Arrester can help protect electrical equipment against transient overvoltages caused by indirect lightning effects and switching operations. For buildings with a direct lightning protection system, a T1 or T1+T2 SPD may be required depending on the installation design.
AC surge arresters are designed for alternating current systems, while DC surge arresters are designed for direct current applications such as photovoltaic systems, battery systems, and DC power supplies. The correct SPD type should be selected according to the system voltage and application.
A 4P T2 Surge Arrester is typically installed in secondary distribution boards, near sensitive electrical equipment, or inside control cabinets to reduce the impact of transient overvoltages on connected devices.
A T2 Surge Arrester works by limiting transient voltage spikes and diverting surge currents safely to the ground. When a surge occurs, the SPD quickly reduces the overvoltage level to help protect downstream electrical equipment.
A Westhomes 4P AC DC T2 Surge Arrester provides reliable surge protection, flexible application options, and effective protection for low-voltage electrical systems. It is suitable for various power distribution environments requiring protection against transient overvoltage risks.
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