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M9F42105Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F42105MFG Item Number541127SeriesMulti 9Product DescriptionMulti 9 Miniature Circuit Breaker,SpecificationsSpecifications Poles 1 Current Rating 5 A Max Voltage 277 VAC Protection Branch Circuit Trip Curve C Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail UL Standard 489 CSA Standard 22.2 IEC Standard 60947-2 Neutral Pole No kAIC @ 120 VAC 14 kAIC @ 240 VAC 14 kAIC @ 277 VAC 10 kAIC @ 60 VDC 10 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
M9F42110Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F42110MFG Item Number606156SeriesMulti 9Product DescriptionMulti 9-C60SP MCB, 1P, 10 A, CSpecificationsSpecifications Poles 1 Current Rating 10 A Max Voltage 277 VAC Protection Branch Circuit Trip Curve C Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail UL Standard 489 CSA Standard 22.2 IEC Standard 60947-2 Neutral Pole No kAIC @ 120 VAC 14 kAIC @ 240 VAC 14 kAIC @ 277 VAC 10 kAIC @ 60 VDC 10 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
M9F17316Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F17316MFG Item Number427990SeriesMulti 9Product DescriptionMulti 9 Miniature Circuit Breaker,SpecificationsSpecifications Poles 3 Current Rating 16 A Max Voltage 440 VAC Protection Branch Circuit Trip Curve C Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail IEC Standard 60947-2 Neutral Pole No kAIC @ 240 VAC 50 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
M9F15202Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F15202MFG Item Number433729SeriesMulti 9Product DescriptionMulti 9 Miniature Circuit Breaker,SpecificationsSpecifications Poles 2 Current Rating 2 A Max Voltage 440 VAC Protection Branch Circuit Trip Curve D Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail IEC Standard 60947-2 Neutral Pole No kAIC @ 240 VAC 30 Terminal Type Screw Auxiliary Switch No Shunt Trip No Availability -
M9F15106Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F15106MFG Item Number588007SeriesMulti 9Product DescriptionMulti 9 Miniature Circuit Breaker,SpecificationsSpecifications Poles 1 Current Rating 6 A Max Voltage 240 VAC Protection Branch Circuit Trip Curve D Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail IEC Standard 60947-2 Neutral Pole No kAIC @ 240 VAC 15 Terminal Type Screw Auxiliary Switch No Shunt Trip No Availability -
M9F43105Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F43105MFG Item Number592162SeriesMulti 9Product DescriptionMulti 9 Miniature Circuit Breaker,SpecificationsSpecifications Poles 1 Current Rating 5 A Max Voltage 277 VAC Protection Branch Circuit Trip Curve D Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail UL Standard 489 CSA Standard 22.2 IEC Standard 60947-2 Neutral Pole No kAIC @ 120 VAC 14 kAIC @ 240 VAC 14 kAIC @ 277 VAC 10 kAIC @ 60 VDC 10 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
M9F43110Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F43110MFG Item Number605580SeriesMulti 9Product DescriptionMulti 9 Miniature Circuit Breaker,SpecificationsSpecifications Poles 1 Current Rating 10 A Max Voltage 277 VAC Protection Branch Circuit Trip Curve D Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail UL Standard 489 CSA Standard 22.2 IEC Standard 60947-2 Neutral Pole No kAIC @ 120 VAC 14 kAIC @ 240 VAC 14 kAIC @ 277 VAC 10 kAIC @ 60 VDC 10 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
M9F42115Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F42115MFG Item Number605810SeriesMulti 9Product DescriptionMulti 9-C60SP MCB, 1P, 15 A, CSpecificationsSpecifications Poles 1 Current Rating 15 A Max Voltage 277 VAC Protection Branch Circuit Trip Curve C Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail UL Standard 489 CSA Standard 22.2 IEC Standard 60947-2 Neutral Pole No kAIC @ 120 VAC 14 kAIC @ 240 VAC 14 kAIC @ 277 VAC 10 kAIC @ 60 VDC 10 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
M9F42101Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F42101MFG Item Number605814SeriesMulti 9Product DescriptionMulti 9-C60SP MCB, 1P, 1 A, C Curve,SpecificationsSpecifications Poles 1 Current Rating 1 A Max Voltage 277 VAC Protection Branch Circuit Trip Curve C Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail UL Standard 489 CSA Standard 22.2 IEC Standard 60947-2 Neutral Pole No kAIC @ 120 VAC 14 kAIC @ 240 VAC 14 kAIC @ 277 VAC 10 kAIC @ 60 VDC 10 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day. -
M9F42104Square D Circuit Breakers, Multi 9 SeriesItem NumberM9F42104MFG Item Number606158SeriesMulti 9Product DescriptionMulti 9-C60SP MCB, 1P, 4 A, C Curve,SpecificationsSpecifications Poles 1 Current Rating 4 A Max Voltage 277 VAC Protection Branch Circuit Trip Curve C Terminals Included Line and Load Trip Unit Fixed Thermal / Fixed Magnetic Mounting DIN Rail UL Standard 489 CSA Standard 22.2 IEC Standard 60947-2 Neutral Pole No kAIC @ 120 VAC 14 kAIC @ 240 VAC 14 kAIC @ 277 VAC 10 kAIC @ 60 VDC 10 Terminal Type Screw Auxiliary Switch No Shunt Trip No AvailabilityOrder by 5:00 PM ET and your package will ship the same day.
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Circuit Protection
Circuit breakers and fuses protect against overload and short circuits for all types of applications.
A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typically resulting from an overload or short circuit. The circuit breaker trips to interrupt the circuit, and be reset and reused.
Fuses provide the same protections. If too much current flows through the fuse, a metal link in the fuse body will melt and interrupt the circuit. A fuse can only trip and open the circuit once, so it must be replaced or repaired to complete the circuit again. Fuses are typically installed in fuse blocks, either for storage or to consolidate fuses in one, easily maintained location.
A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typically resulting from an overload or short circuit. The circuit breaker trips to interrupt the circuit, and be reset and reused.
Fuses provide the same protections. If too much current flows through the fuse, a metal link in the fuse body will melt and interrupt the circuit. A fuse can only trip and open the circuit once, so it must be replaced or repaired to complete the circuit again. Fuses are typically installed in fuse blocks, either for storage or to consolidate fuses in one, easily maintained location.