ABB MS132-6.3 Motor Protection Switch, 4.0-6.3 A, 3-Pole, Thermal-Magnetic 1SAM350000R1009

Protect motors from overload and short-circuit with the ABB MS132-6.3 motor protection switch. This compact 3-pole device offers reliable thermal-magnetic tripping for motors with rated currents from 4.0 to 6.3 A, ensuring safe operation in industrial control panels and motor starters.

Who is it for

Designed for panel builders, maintenance technicians, and machine builders who need a dependable motor protection solution for small three-phase motors up to 6.3 A. Suitable for DIN rail or screw mounting.

Main features

• Thermal-magnetic trip unit with adjustable current setting from 4.0 to 6.3 A
• 3 poles, rated operational voltage up to 690 V AC
• High short-circuit breaking capacity: 100 kA at 400 V
• Screw terminals accept rigid conductors 1–10 mm² and flexible 1–6 mm²
• IP20 protection on main circuit terminals
• Operating temperature range -25 to +70 °C

Specifications

• Product type: Motor Protection Switch
• Current setting range: 4.0 - 6.3 A
• Rated operational current (Ie): 6.3 A
• Rated operational voltage (Ue): 690 V AC
• Number of poles: 3
• Tripping characteristic: Thermal-magnetic
• Rated short-circuit breaking capacity (Icu) at 400V: 100 kA
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated insulation voltage (Ui): 690 V
• Degree of protection: IP20 (main circuit terminals)
• Mounting: DIN rail (35 mm) or screw mounting
• Terminal type: Screw terminals
• Main circuit terminal capacity (rigid): 1 - 10 mm²
• Main circuit terminal capacity (flexible): 1 - 6 mm²
• Power loss per pole: 3.2 W
• Operating temperature range: -25 to +70 °C

Tips

Set the current dial to the motor's full-load current for optimal protection. Ensure proper ventilation around the switch to maintain the specified operating temperature range.