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Miniature Circuit Breakers

PRODUCT FEATURES
HIDE
MCB4 Image
MCB4 Series
MINIATURE CIRCUIT BREAKERS
  • DIN rail mount chassis
  • Current ratings up to 63A
  • C and D curve models
  • Wide range of accessories
  • Finger safe, captive screw, box lug terminals
  • UL489, UL486, IEC 60947-2
  • UL File # E477352

Applications:
  • Branch circuit protection to prevent damage to conductors
  • Protection of external loads such as motors, receptacles, HACR equipment, and others

MCB1 Image
MCB1 SERIES
SUPPLEMENTARY PROTECTORS
  • DIN rail mount chassis
  • Current ratings up to 63A
  • B, C, and D curve models
  • Wide range of accessories
  • Finger safe, captive screw, box lug terminals
  • UL1077, IEC 60947-2
  • UL File # E482436

Applications:
  • Individual component protection to keep parallel loads from tripping together
  • Installed within control circuits, lighting, and appliances
  • Protection of sensitive loads within an enclosure such as PLC units, power supplies, condensation heaters, fans, etc.
UL489 vs UL1077
SHOW
UL489 vs UL1077
UL489
  • A UL489 Miniature Circuit Breaker can be used for branch protection as the primary overcurrent device.
  • UL489 Miniature Circuit Breakers can also be used as supplemental protection within an appliance or other electrical equipment.
UL1077
  • UL1077 Supplementary Protectors are designed to be used only within an appliance or other electrical equipment to provide supplemental protection or as a means to open the circuit.
  • Supplementary Protectors cannot be used in place of a UL489 Branch Circuit Protector to provide primary overcurrent protection.
  • If a supplementary protector can be removed from the circuit and maintain proper protection, then the supplementary protector is being used correctly.

UL489 Miniature Circuit Breakers



1 to 63A Models



C and D Trip Curves



from $15
UL489 Miniature Circuit Breakers



1 to 63A Models



C and D Trip Curves



from $30
UL489 Miniature Circuit Breakers



1 to 63A Models



C and D Trip Curves



from $45
Trip Devices, Auxiliaries &



Locking Devices







from $13
UL1077 Supplementary Protectors



1 to 63A Models



B, C, and D Trip Curves



from $7
UL1077 Supplementary Protectors



1 to 63A Models



B, C, and D Trip Curves



from $14
UL1077 Supplementary Protectors



1 to 63A Models



B, C, and D Trip Curves



from $7
Trip Devices, Auxiliaries &



Locking Devices







from $12
UL1077 Supplementary Protectors



1 to 63A Models







from $7
UL1077 Supplementary Protectors



1 to 63A Models







from $7
Trip Devices, Auxiliaries &



Locking Devices







from $13
IP65, Plastic



Mount MCBs or other



DIN 43880 profile devices



from $15