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Miniature Circuit Breakers

Shop our wide selection of UL 489 miniature circuit breakers and UL 1077 supplementary protectors in both AC and DC voltages. They are available in one-, two- and three-pole versions with an amperage range up to 63A and in B, C or D trip curve options to meet your applications needs. Difference between UL 489 vs. UL 1077

Products 781-792 of 1197
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Altech Corp 2D4UL Miniature Circuit Breaker
Retail: $77.44
Price: $48.65

The Altech Corp 2D4UL is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 4.0
  • Poles: 2
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 2D4UL
Altech Corp 3D4UL Miniature Circuit Breaker
Retail: $116.17
Price: $72.98

The Altech Corp 3D4UL is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 4.0
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 3D4UL
Noark B1N1B40 Mini Circuit Breaker
Retail: $22.71
Price: $20.78

The Noark B1N1B40 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 40
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1B40
Altech Corp 1B40UR Miniature Circuit Breaker
Retail: $21.87
Price: $13.73

The Altech Corp 1B40UR is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 40
  • Pole: 1
  • Trip Curve: B
  • UL 1077 Listed, UL
MFG Part# 1B40UR
Altech Corp 1C40DL Miniature Circuit Breaker
Retail: $43.70
Price: $27.45

The Altech Corp 1C40DL is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 40
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C40DL
Altech Corp 1C40UL Miniature Circuit Breaker
Retail: $41.24
Price: $25.90

The Altech Corp 1C40UL is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 40
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C40UL
Noark B1N1C40 Mini Circuit Breaker
Retail: $20.67
Price: $18.91

The Noark B1N1C40 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 40
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1C40
Altech Corp 1D40DL Miniature Circuit Breaker
Retail: $43.70
Price: $27.45

The Altech Corp 1D40DL is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 40
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1D40DL
Altech Corp 1D40UL Miniature Circuit Breaker
Retail: $41.24
Price: $25.90

The Altech Corp 1D40UL is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 40
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1D40UL
Noark B1N1D40 Mini Circuit Breaker
Retail: $22.71
Price: $20.78

The Noark B1N1D40 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 40
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1D40
Altech Corp 1D40UR Miniature Circuit Breaker
Retail: $21.87
Price: $13.73

The Altech Corp 1D40UR is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 40
  • Pole: 1
  • Trip Curve: D
  • UL 1077 Listed, UL, CE
MFG Part# 1D40UR
Altech Corp 1B40UM Miniature Circuit Breaker
Retail: $31.24
Price: $19.62

The Altech Corp 1B40UM is suitable for branch circuit device protection applications with Low inrush motors, resistive loads, wiring protection, receptacles, lighting, and control circuit applications.

  • Terminal Type: Box Clamp or Ring Tongue
  • Amperage: 40
  • Poles: 1
  • Trip Curve: B
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 1B40UM