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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

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Altech Corp 2D03UM Miniature Circuit Breaker
Retail: $54.98
Price: $34.54

The Altech Corp 2D03UM 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: 0.3
  • Poles: 2
  • Trip Curve: D
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 2D03UM
Altech Corp 3C03UM Miniature Circuit Breaker
Retail: $82.45
Price: $51.79

The Altech Corp 3C03UM 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: 0.3
  • Poles: 3
  • Trip Curve: C
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 3C03UM
Altech Corp 3D03UM Miniature Circuit Breaker
Retail: $82.45
Price: $51.79

The Altech Corp 3D03UM 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: 0.3
  • Poles: 3
  • Trip Curve: D
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 3D03UM
Noark B1N1B0.5 Mini Circuit Breaker
Retail: $22.71
Price: $20.78

The Noark B1N1B0.5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.5
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1B0.5
Altech Corp 1B05UR Miniature Circuit Breaker
Retail: $20.61
Price: $12.95

The Altech Corp 1B05UR 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: 0.5
  • Pole: 1
  • Trip Curve: B
  • UL 1077 Listed, UL
MFG Part# 1B05UR
Noark B1H1B0.5 Mini Circuit Breaker
Retail: $26.56
Price: $24.30

The Noark B1H1B0.5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.5
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1B0.5
Altech Corp 1C05DL Miniature Circuit Breaker
Retail: $41.24
Price: $25.90

The Altech Corp 1C05DL 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: 0.5
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C05DL
Noark B1N1C0.5 Mini Circuit Breaker
Retail: $20.67
Price: $18.91

The Noark B1N1C0.5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.5
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1C0.5
Noark B1H1C0.5 Mini Circuit Breaker
Retail: $27.92
Price: $25.55

The Noark B1H1C0.5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.5
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1C0.5
Altech Corp 1D05DL Miniature Circuit Breaker
Retail: $41.24
Price: $25.90

The Altech Corp 1D05DL 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: 0.5
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1D05DL
Noark B1N1D0.5 Mini Circuit Breaker
Retail: $22.71
Price: $20.78

The Noark B1N1D0.5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.5
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1D0.5
Altech Corp 1D05UR Miniature Circuit Breaker
Retail: $20.61
Price: $12.95

The Altech Corp 1D05UR 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: 0.5
  • Pole: 1
  • Trip Curve: D
  • UL 1077 Listed, UL, CE
MFG Part# 1D05UR