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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 1C8UR Miniature Circuit Breaker
8A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 277 VAC) | 1C8UR
Retail: $20.61
Price: $12.95

The Altech 1C8UR is suitable for low inrush motors, lighting, wiring protection, appliances, business equipment, and control circuit applications.

  • Amperage: 8
  • Poles: 1
  • Trip Curve: C
  • UL 1077 Listed
MFG Part# 1C8UR
Noark B1H1C8 Mini Circuit Breaker
8A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 480Y/277 VAC) | B1H1C8
Retail: $27.92
Price: $25.55

The Noark B1H1C8 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 8
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1C8
Altech Corp 1D8DL Miniature Circuit Breaker
8A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 125 VDC) | 1D8DL
Retail: $41.24
Price: $25.90

The Altech Corp 1D8DL 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: 8
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1D8DL
Noark B1N1D8 Mini Circuit Breaker
8A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 240 VAC, 60 VDC) | B1N1D8
Retail: $22.71
Price: $20.78

The Noark B1N1D8 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 8
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1D8
Altech Corp 1D8UR Miniature Circuit Breaker
8A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 277 VAC) | 1D8UR
Retail: $20.61
Price: $12.95

The Altech Corp 1D8UR 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: 8
  • Pole: 1
  • Trip Curve: D
  • UL 1077 Listed, UL, CE
MFG Part# 1D8UR
Noark B1H1D8 Mini Circuit Breaker
8A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 480Y/277 VAC) | B1H1D8
Retail: $27.92
Price: $25.55

The Noark B1H1D8 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 8
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1D8
Altech Corp 1C8UM Miniature Circuit Breaker
8A Miniature Circuit Breaker, 1 Poles, C-Curve (Rated to 40Y/277 VAC) | 1C8UM
Retail: $27.48
Price: $17.26

The Altech Corp 1C8UM 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: 8
  • Poles: 1
  • Trip Curve: C
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 1C8UM
Altech Corp 1D8UM Miniature Circuit Breaker
8A Miniature Circuit Breaker, 1 Poles, D-Curve (Rated to 40Y/277 VAC) | 1D8UM
Retail: $27.48
Price: $17.26

The Altech Corp 1D8UM 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: 8
  • Poles: 1
  • Trip Curve: D
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 1D8UM
Noark B1N2B8 Mini Circuit Breaker
8A Miniature Circuit Breaker, 2 Pole, B-Curve (Rated to 240 VAC, 125VDC) | B1N2B8
Retail: $44.83
Price: $41.02

The Noark B1N2B8 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 8
  • Poles: 2
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N2B8
Noark B1H2B8 Mini Circuit Breaker
8A Miniature Circuit Breaker, 2 Pole, B-Curve (Rated to 480Y/277 VAC) | B1H2B8
Retail: $51.92
Price: $47.51

The Noark B1H2B8 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 8
  • Poles: 2
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H2B8
Noark B1N2C8 Mini Circuit Breaker
8A Miniature Circuit Breaker, 2 Pole, C-Curve (Rated to 240 VAC, 125VDC) | B1N2C8
Retail: $43.38
Price: $39.70

The Noark B1N2C8 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 8
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N2C8
Noark B1H2C8 Mini Circuit Breaker
8A Miniature Circuit Breaker, 2 Pole, C-Curve (Rated to 480Y/277 VAC) | B1H2C8
Retail: $53.25
Price: $48.73

The Noark B1H2C8 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 8
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H2C8
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