BEMKO Schelinger A11-SR8-4P-100 Isolating Switch 4P 100A

The BEMKO Schelinger A11-SR8-4P-100 is a high-performance 4-pole isolating switch engineered to provide secure and reliable disconnection of electrical circuits. Designed for use in low-voltage distribution systems, this device acts as a critical safety component, allowing for the complete isolation of power supply lines during maintenance, repairs, or emergency shutdowns. Its robust construction ensures consistent performance in both demanding industrial environments and standard residential electrical installations.

Advantages

This isolating switch offers exceptional durability and operational reliability, making it an essential element for modern electrical safety. The 4-pole configuration allows for the simultaneous disconnection of all phases and the neutral conductor, ensuring comprehensive circuit isolation. Its design prioritizes user safety and ease of operation, providing a clear visual indication of the contact status. Furthermore, the high current rating of 100A makes it suitable for heavy-duty applications where power stability and safety are paramount.

Suitable for

• Industrial power distribution boards
• Residential electrical main switchboards
• Commercial building energy management systems
• Maintenance and service disconnection of electrical machinery

When it may not be suitable

This device is not intended for use as a circuit breaker for overload or short-circuit protection, as it lacks internal tripping mechanisms for these faults. It should not be installed in environments exceeding its specified voltage or environmental ratings, such as areas with extreme moisture or corrosive atmospheres without appropriate protective enclosures.

Key specifications

• Number of poles: 4
• Rated current: 100A
• Function: Isolating switch
• Application: Low-voltage distribution

How to use

The switch should be installed by a qualified electrician in accordance with local electrical regulations. It is typically mounted on a standard DIN rail within a distribution board. Once installed, the device is operated manually via the front-facing toggle handle. To isolate the circuit, move the handle to the 'OFF' position, ensuring that the power supply is completely disconnected before performing any maintenance work on the downstream equipment.

What to consider before purchase

• Verify that the 100A rating is sufficient for your total circuit load.
• Ensure the 4-pole configuration matches your specific electrical system requirements.
• Check the available space in your distribution board for mounting.
• Confirm compatibility with existing DIN rail systems.

Usage recommendations

Always verify that the circuit is de-energized using a voltage tester after switching the device to the 'OFF' position before commencing any maintenance or repair tasks.