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1-Pole Miniature Circuit Breakers

1-pole miniature circuit breakers (MCBs) are available in current ranges from 0.3A to 63A, with tripping characteristics B, C, and D. They comply with UL 1077, UL 489, and UL 508 standards.

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Noark B1N1B4 Mini Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 240 VAC, 60 VDC) | B1N1B4
Retail: $22.71
Price: $20.78

The Noark B1N1B4 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 4
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1B4
Altech Corp 1B4UR Miniature Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 277 VAC) | 1B4UR
Retail: $20.61
Price: $12.95

The Altech Corp 1B4UR 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
  • Pole: 1
  • Trip Curve: B
  • UL 1077 Listed, UL
MFG Part# 1B4UR
Noark B1H1B4 Mini Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 480Y/277 VAC) | B1H1B4
Retail: $26.56
Price: $24.30

The Noark B1H1B4 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 4
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1B4
Altech Corp 1C4DL Miniature Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 125 VDC) | 1C4DL
Retail: $41.24
Price: $25.90

The Altech Corp 1C4DL 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
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C4DL
Noark B1N1C4 Mini Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 240 VAC, 60 VDC) | B1N1C4
Retail: $20.67
Price: $18.91

The Noark B1N1C4 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 4
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1C4
Altech Corp 1C4UL Miniature Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 277 VAC) | 1C4UL
Retail: $38.73
Price: $24.33

The Altech Corp 1C4UL 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
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C4UL
Noark B1H1C4 Mini Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 480Y/277 VAC) | B1H1C4
Retail: $27.92
Price: $25.55

The Noark B1H1C4 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 4
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1C4
Altech Corp 1D4DL Miniature Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 125 VDC) | 1D4DL
Retail: $41.24
Price: $25.90

The Altech Corp 1D4DL 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
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1D4DL
Noark B1N1D4 Mini Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 240 VAC, 60 VDC) | B1N1D4
Retail: $22.71
Price: $20.78

The Noark B1N1D4 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 4
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1D4
Altech Corp 1D4UR Miniature Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 277 VAC) | 1D4UR
Retail: $20.61
Price: $12.95

The Altech Corp 1D4UR 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
  • Pole: 1
  • Trip Curve: D
  • UL 1077 Listed, UL, CE
MFG Part# 1D4UR
Noark B1H1D4 Mini Circuit Breaker
4A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 480Y/277 VAC) | B1H1D4
Retail: $27.92
Price: $25.55

The Noark B1H1D4 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 4
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1D4
Altech Corp 1B4UM Miniature Circuit Breaker
4A Miniature Circuit Breaker, 1 Poles, B-Curve (Rated to 40Y/277 VAC) | 1B4UM
Retail: $27.48
Price: $17.26

The Altech Corp 1B4UM 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
  • Poles: 1
  • Trip Curve: B
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 1B4UM
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