3P 100A Miniature Isolator WSH3-100 | Westhomes Industrial Grade
WSH3-100 3P isolating switch, 100A rating, 230V/400V. Features 400V insulation, 2kA short-time withstand current, -5~+40°C operation. Ideal for industrial power control.
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3P 100A Miniature Isolator WSH3-100
WSH3-100 3P isolating switch, 100A rating, 230V/400V. Features 400V insulation, 2kA short-time withstand current, -5~+40°C operation. Ideal for industrial power control.
Engineered for industrial power systems, the Westhomes WSH3-100 3-Pole Miniature Isolator Switch delivers reliable 100A power isolation with 3-pole configuration. Built with high-insulation thermosetting plastic shell and robust internal components, it ensures safe power supply disconnection, no-load circuit breaking, and prevention of accidental power transmission.
Key Features：
3-Pole Configuration: Dedicated 3-pole design (1P/2P/3P/4P optional) for balanced 3-phase power isolation and system integration.
Superior Safety: 400V insulation voltage meets strict electrical safety standards, protecting systems from electrical faults.
User-Friendly Design: Equipped with pull rod for easy operation, lock device to prevent accidental switching, and busbar connection for secure installation.
Comprehensive Certifications: CCC, CQC, ISO, CE certified, guaranteeing compliance with international quality and safety norms.
Applications:
Renewable Energy Systems
Municipal Engineering
Agricultural & Farm Equipment
Main Technical Parameters
| Model | WSH3-10018model;WSH3-10027model |
| Rated Current In(A) | 32、40、50、63、80、100 |
| Poles | 1P、2P、3P、4P |
| Selective categories | AC-22A |
| NominalInsulation Voltage Ui(V) | 690 |
| Rated OperationalVoltage Ue(V) | AC230V/AC400V |
| Rated Impulse Withstandvoltage Uimp(kV) | 4 |
| Rated Short Time Current lcw(kA)/1S | 1.2 |
| Rated Short-Circuit AbilityIcm(kA) | 2 |
| Mechanical Endurance | 20000 |
| Electrical Endurance | 10000 |
Packaging and delivery
| Selling Units | Single item |
Lead time
| Quantity (pieces) | 1 – 1,000 | > 1,000 |
| Lead time (days) | 30 | To be negotiated |
Key attributes
| Rated Voltage | 230 V, 400 V |
| Material | Copper |
| Place of Origin | Zhejiang, China |
| Type | Switches |
| Model Number | WSH3-100 |
| Brand Name | Westhomes |
155 MBFREQUENTLY ASKED QUESTION (FAQ)
What is the Westhomes WSH3-100 3P 100A Miniature Isolator?
The Westhomes WSH3-100 3P 100A Miniature Isolator is a manual electrical isolation device designed to safely disconnect circuits from the power supply. It is commonly used in low-voltage distribution systems for equipment maintenance, inspection, and circuit isolation.
What does 3P mean on the WSH3-100 Miniature Isolator?
3P means the isolator switch has three poles. It is mainly used for three-phase electrical systems, allowing the three phase conductors to be disconnected simultaneously for safe circuit isolation.
What is the rated current of the WSH3-100 Miniature Isolator?
The WSH3-100 Miniature Isolator has a rated current of 100A, making it suitable for low-voltage distribution applications that require reliable isolation and manual switching control.
What is the difference between a miniature isolator and a circuit breaker?
A miniature isolator is mainly used for manual circuit disconnection and electrical isolation during maintenance. A circuit breaker provides protection functions such as overload and short-circuit protection. An isolator should normally be installed together with suitable protective devices.
Where can the WSH3-100 3P 100A Miniature Isolator be used?
The WSH3-100 is suitable for residential, commercial, and industrial low-voltage applications, including distribution boards, control panels, electrical equipment isolation, and power distribution systems.
Does the WSH3-100 Miniature Isolator provide overload protection?
No. The WSH3-100 Miniature Isolator is designed for circuit isolation and manual switching only. It does not provide overload or short-circuit protection, so additional protection devices such as MCBs or MCCBs may be required.
Why choose a 3-pole isolator switch for three-phase systems?
A 3-pole isolator switch allows all three phase conductors in a three-phase system to be disconnected at the same time. This provides safer isolation during maintenance and helps prevent accidental energization of equipment.
How is the WSH3-100 Miniature Isolator installed?
The WSH3-100 Miniature Isolator is designed for installation in compatible electrical distribution systems. It should be mounted and wired according to the product specifications and local electrical installation requirements.
Can the WSH3-100 be used as a main isolation switch?
Yes. The WSH3-100 3P 100A Miniature Isolator can be used as a main isolation switch in suitable low-voltage systems, allowing operators to manually disconnect power for maintenance or emergency isolation.
What are the advantages of the Westhomes WSH3-100 Miniature Isolator?
The WSH3-100 offers reliable manual isolation, a compact design, and a 3-pole configuration suitable for three-phase applications. It provides a convenient and safe solution for electrical isolation in low-voltage distribution systems.
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