20-100A DIN Rail Isolator | Westhomes WSH3 1P-4P 400V
Westhomes WSH3 DIN rail isolation switch offers 1P-4P, 20-100A, 400V insulation & 2kA withstand current. Operates -5~+40°C for industrial applications.
Get quick appointment for technical support!
20-100A DIN Rail Isolator
Westhomes WSH3 DIN rail isolation switch offers 1P-4P, 20-100A, 400V insulation & 2kA withstand current. Operates -5~+40°C for industrial applications.
The Westhomes WSH3 DIN rail isolation switch is a Chinese-manufactured miniature electrical component engineered for industrial power control. It offers 1P/2P/3P/4P configurations, a 20A-100A rated current range (up to 125A for 3P), and 400V insulation voltage for superior safety. With a 2kA short-time withstand current and operation from -5°C to +40°C, it delivers reliable performance in harsh environments, while its DIN rail mount and lock device ensure easy installation and accident prevention.
Key Features：
DIN Rail Mount Design: Equipped with an installation buckle (shown in product images) for quick, tool-free mounting on standard DIN rails in electrical panels.
400V Insulation Safety: 400V insulation voltage meets high industrial safety standards, preventing electrical leakage and short-circuit risks.
Safety Lock Device: Integrated lock device and pull rod (visible in product diagrams) prevent accidental power transmission during maintenance.
Customization Support: As an original manufacturer, Westhomes offers custom service for the WSH3 series to match specific application needs.
Applications:
Machinery & Equipment
Renewable Energy Installations
Industrial Electrical Panels
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 | WSH3-125 |
| Brand Name | Westhomes |
155 MBFREQUENTLY ASKED QUESTION (FAQ)
What is a 20-100A DIN Rail Isolator?
A 20-100A DIN Rail Isolator is a manual electrical disconnect device designed for safe circuit isolation in low-voltage distribution systems. It is mounted on a standard DIN rail and used to disconnect electrical circuits during maintenance, inspection, or emergency operations.
What current ratings are available for a 20-100A DIN Rail Isolator?
A 20-100A DIN Rail Isolator is available with different rated current options ranging from 20A to 100A. Users can select the appropriate current rating according to the load requirements and electrical system design.
What is the function of a DIN Rail Isolator?
A DIN Rail Isolator provides a safe way to manually disconnect a circuit from the power supply. It creates a clear isolation point, helping protect maintenance personnel and equipment during electrical work.
What applications are suitable for a 20-100A DIN Rail Isolator?
A 20-100A DIN Rail Isolator is suitable for residential, commercial, and industrial applications, including distribution boxes, control panels, electrical cabinets, lighting systems, and low-voltage power distribution systems.
What is the difference between a DIN Rail Isolator and an MCB?
A DIN Rail Isolator is mainly used for manual circuit disconnection and electrical isolation, while an MCB provides automatic protection against overload and short-circuit faults. They are often installed together to provide both isolation and protection.
Can a DIN Rail Isolator be used as a main switch?
Yes. A DIN Rail Isolator can be used as a main switch in suitable electrical distribution systems. It allows users to manually disconnect the power supply for maintenance, inspection, or system shutdown.
What pole configurations are available for a 20-100A DIN Rail Isolator?
A 20-100A DIN Rail Isolator is commonly available in different pole configurations, such as 1P, 2P, 3P, and 4P. The correct configuration depends on whether the application requires single-phase or three-phase circuit isolation.
Does a DIN Rail Isolator provide overload protection?
No. A DIN Rail Isolator does not provide overload or short-circuit protection. It is designed for switching and isolation functions only. Appropriate protective devices, such as MCBs or MCCBs, should be installed for fault protection.
How is a 20-100A DIN Rail Isolator installed?
The isolator is installed on a standard DIN rail inside a compatible electrical enclosure or distribution board. Proper wiring, rated current selection, and installation procedures should follow local electrical regulations.
Why choose a 20-100A DIN Rail Isolator?
A 20-100A DIN Rail Isolator offers flexible current options, compact DIN rail installation, and reliable manual isolation performance. It is an efficient solution for safe power control and maintenance isolation in various low-voltage electrical systems.
RELATED PROJECTS
REQUEST
YOUR FREE QUOTE
* indicates a required field
