GMK0-LF

Model GMK Motor Protection Switch is a three-pole horsepower rated switch which combines motor thermal overload protection and magnetic short circuit protection in one compact unit. Incorporates a manual disconnect switch and instantaneous magnetic trip mechanism in one compact device. The GMK is ideal for applications requiring multi-motor operation. UL permits Group Fusing for motors up to 10 amperes full load current. This provides the option for grouping a number of motors under one branch circuit disconnect and fuse set. This saves panel space and additional component cost. Remote control operation and low voltage protection can be provided by adding a Type “JM” Contactor in series with the motor protection switch.
Features:
• Interrupt Rating = 5kA at 480v
• Motor protection circuit breaker up to 32 amps
• Manual operation using start-stop push buttons
• All poles open for both thermal and magnetic trips
• Differential protection against asymmetrical overloads (single phase protection)
• Class 10 overload protection
• Ambient temperature compensation between 23°F and 104°F (-5°C and +40°C)
• Instant magnetic trip when the current passing through the relay reaches 12 times maximum value of the thermal setting
• Easily accessible terminals protected against accidental contact
• Easy Din Rail mounting or panel mounting with screws
• UL Listed, CSA Approved and meets international standards