ABB Stotz S&J Motor Protection Circuit Breaker MS132-12

Manufacturer: ABB Stotz S&J
Designation: Motor Protection Circuit Breaker 8-12A
Type: MS132-12
Overload Release Current Setting: 8..12 A
Setting Range of the Instantaneous Short-Circuit Release: 180 A
With Thermal Protection: Yes
Phase Failure Sensitive: Yes
Release Technology: Thermomagnetic
Rated Operating Voltage: 250..690 V
Rated Continuous Current Iu: 12 A
Rated Operational Power at AC-3, 400 V: 5.5 kW
Connection Type Main Circuit: Screw Connection
Actuation Element Design: Rotary Knob
Device Type: Complete Device in Enclosure
With Integrated Auxiliary Switch: No
With Integrated Under-Voltage Release: No
Number of Poles: 3
Rated Short-Circuit Breaking Capacity Icu at 400 V, AC: 100 kA
Protection Class (IP): IP20
Height: 97.8 mm
Width: 45 mm
Depth: 86.55 mm

The MS132 motor protection circuit breaker with thermal and electromagnetic protection represents a compact and powerful series with a high short-circuit breaking capacity for motor protection up to 15 kW (400 V) with a module width of 45 mm. The temperature-compensated device features a rotary knob operation with a clear switching position indicator I/TRIP/0. Additionally, the MS132 includes a short-circuit indicator. The rotary knob can be directly locked in the 0 position using a padlock. Auxiliary, signal, and short-circuit alarm contacts, as well as under-voltage and operating current releases, can be mounted without tools. 3-phase busbars for 65 A or 100 A and feed blocks for 25 mm² or 35 mm² allow for the common feeding of multiple motor protection circuit breakers. Protective enclosures and accessories for control cabinet and door installation complete the range. Atex certification allows for the protection of motors in explosive areas, and UL approval as a self-protected combination motor controller.