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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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Lovato P1MB3PB50 Miniature Circuit Breaker
50A Miniature Circuit Breakers, 3 Poles, B-Curve (Rated to 230-400 VAC) | P1MB3PB50
Retail: $189.37
Price: $66.90

The Lovato P1MB3PB50 is suitable for branch circuit device protection. (Pack of 4)

  • Terminal Type: Screw
  • Amperage: 50
  • Poles: 3
  • Trip Curve: B
  • UL 1077 Listed, CSA C22.2 No. 235, IEC/EN 60947-2
MFG Part# P1MB3PB50
Lovato P1MB3PD50 Miniature Circuit Breaker
50A Miniature Circuit Breakers, 3 Poles, D-Curve (Rated to 230-400 VAC) | P1MB3PD50
Retail: $189.37
Price: $66.90

The Lovato P1MB3PD50 is suitable for branch circuit device protection. (Pack of 4)

  • Terminal Type: Screw
  • Amperage: 50
  • Poles: 3
  • Trip Curve: D
  • UL 1077 Listed, CSA C22.2 No. 235, IEC/EN 60947-2
MFG Part# P1MB3PD50
Noark B1N1B5 Mini Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 240 VAC, 60 VDC) | B1N1B5
Retail: $22.71
Price: $20.78

The Noark B1N1B5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 5
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1B5
Altech Corp 1B5UR Miniature Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 277 VAC) | 1B5UR
Retail: $20.61
Price: $12.95

The Altech Corp 1B5UR 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: 5
  • Pole: 1
  • Trip Curve: B
  • UL 1077 Listed, UL
MFG Part# 1B5UR
Noark B1H1B5 Mini Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 480Y/277 VAC) | B1H1B5
Retail: $26.56
Price: $24.30

The Noark B1H1B5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 5
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1B5
Altech Corp 1C5DL Miniature Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 125 VDC) | 1C5DL
Retail: $41.24
Price: $25.90

The Altech Corp 1C5DL 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: 5
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C5DL
Noark B1N1C5 Mini Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 240 VAC, 60 VDC) | B1N1C5
Retail: $20.67
Price: $18.91

The Noark B1N1C5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 5
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1C5
Altech Corp 1C05UL Miniature Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 277 VAC) | 1C05UL
Retail: $38.73
Price: $24.33

The Altech Corp 1C05UL 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: 05
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C05UL
Altech Corp 1C5UL Miniature Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 277 VAC) | 1C5UL
Retail: $38.73
Price: $24.33

The Altech Corp 1C5UL 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: 5
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 1C5UL
Noark B1H1C5 Mini Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 480Y/277 VAC) | B1H1C5
Retail: $27.92
Price: $25.55

The Noark B1H1C5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 5
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1C5
Altech 1D5DL Miniature Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 125 VDC) | 1D5DL
Retail: $41.24
Price: $25.90

The Altech 1D5DL is suitable for branch circuit device protection.

  • Terminal Type: Dual Connection Terminal (Box Clamp or Ring Tongue)
  • Amperage: 5
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed
MFG Part# 1D5DL
Noark B1N1D5 Mini Circuit Breaker
5A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 240 VAC, 60 VDC) | B1N1D5
Retail: $22.71
Price: $20.78

The Noark B1N1D5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 5
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1D5
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