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The Schneider Electric Compact INS125 is a 4-pole switch-disconnector designed for industrial applications requiring a reliable main or working switch. Its key benefit is providing robust circuit isolation with a high rated continuous current of 125A and a 75kW power rating, suitable for voltages up to 690V. A caveat is its IP40 protection rating, meaning it's suitable for indoor use and requires protection from dust and water ingress.
| Series | Merlin Gerin |
|---|---|
| Model Part Number | 28911 |
| Brand | Schneider Electric |
A switch-disconnector provides isolation for electrical circuits. It's used to safely de-energize equipment for maintenance or repair. It is designed to break current under normal load conditions and can be locked in the OFF position for safety.
The INS125 has an IP40 protection rating, which means it is protected against solid objects larger than 1mm but not against water. It is intended for indoor industrial use. For outdoor applications, it would require installation within a suitable weatherproof enclosure.
No, the INS125 is a switch-disconnector, not an overcurrent protective device like a circuit breaker or fuse. It is designed to provide isolation and cannot protect circuits from overloads or short circuits.
This specific model, the Compact INS125, has a rated continuous current of 125A and a maximum rated operating voltage (Ue) of 690V.
Always ensure power is completely disconnected before installation or maintenance. Follow proper DIN rail mounting procedures and torque specifications for all screw terminals. It is recommended that installation be performed by a qualified electrician in accordance with local electrical codes.
The operating temperature range for this switch-disconnector is from -25°C to +70°C.
The padlock feature is designed to accept standard padlocks. Ensure the padlock is sufficiently robust for the application to prevent accidental or unauthorized operation.
Check for obstructions around the operating mechanism. Ensure terminals are not over-tightened, which could deform the unit. Verify the unit is correctly mounted on the DIN rail. If the issue persists, do not force the switch and consult a qualified electrician.
Disconnect power to the circuit. Using an appropriate torque screwdriver, re-tighten the screw terminals to the recommended specification. Ensure the correct size of conductor is used for the terminals.
Ensure the unit is correctly rated for the load it is switching. Check for signs of arcing or damage on the contacts (requires de-energization and inspection by a qualified professional). Verify that the switch is fully engaged in either the ON or OFF position.
Setup: The Compact INS125 is designed for DIN rail mounting. Ensure the DIN rail is securely installed in the electrical enclosure. Slide the disconnector onto the rail and secure it according to the manufacturer's instructions, typically involving a clip mechanism at the base. Connect the incoming and outgoing power conductors to the screw terminals. Ensure proper torque is applied to the terminals to guarantee a secure connection and prevent overheating. The switch is operated via a rotary handle (included, black in this standard version).
Compatibility: This switch-disconnector is compatible with standard industrial electrical systems operating at up to 690V AC. It is suitable for use in standard enclosures that accommodate DIN rail mounted equipment. Ensure compatibility with the wiring standards and codes applicable to your installation.
Care: Regularly inspect the disconnector for any signs of physical damage or wear. Keep the enclosure clean and free from excessive dust. Ensure the terminals remain clean and tight. Periodically test the switching operation to confirm it functions correctly. The operating temperature range is -25°C to +70°C, and storage is -50°C to +85°C, so ensure the environment stays within these limits. Due to its IP40 rating, avoid exposing the unit to water or excessive dust without appropriate additional protection.
