MS132-0.25 - Motor starter switch 1SAM350000R1002

Motor protection circuit breakers – reliable protection for your drives

MS132 motor protection circuit breakers are compact protective devices for electric motors against overload and short circuit. Designed to operate in circuits with a rated voltage of 250…690 V, they provide effective protection in both single-phase and three-phase applications. The thermomagnetic operating principle guarantees a quick response to failures, minimizing the risk of damage to connected devices. The housing width of 45 mm allows for installation in tight spaces, which is particularly important in switchboards and control cabinets.

Functionality and application

The MS132-0.25 circuit breaker, with a current setting range of 0.16…0.25 A, is ideal for protecting motors with a power of up to 0.06 kW (AC-3, 400 V). The short-circuit capacity of up to 100 kA at 400 V AC ensures a high level of installation safety. Additionally, the built-in phase failure detection function protects the motor against damage caused by voltage asymmetry. The device has an adjustable current range, which allows for precise adaptation to the characteristics of the protected motor. The TRIP protection release indicator facilitates diagnosis of the causes of shutdowns, reducing installation downtime.

Design and characteristic features

MS132 circuit breakers are characterized by a solid construction and high quality of workmanship. The knob for setting the current provides convenient and precise adjustment. Screw connection of the main contacts guarantees a secure and durable connection of the wires. The device meets safety standards and has a protection degree of IP20, which provides protection against accidental contact. Compact dimensions (45 x 90 x 86.75 mm) facilitate installation even in limited spaces. Power losses of 4.8 W minimize the impact on the energy efficiency of the installation. The use of materials resistant to temperature (range from -25°C to +70°C) ensures reliable operation in harsh environmental conditions.