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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 1057-1068 of 1197
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Noark B1E3C63 Mini Circuit Breaker
Retail: $49.27
Price: $45.09

The Noark B1E3C63 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 63
  • Poles: 3
  • Trip Curve: C
  • UL 1077 Listed
MFG Part# B1E3C63
Noark B1N3D63 Mini Circuit Breaker
Retail: $66.09
Price: $60.48

The Noark B1N3D63 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 63
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N3D63
Altech Corp 3B63UM Miniature Circuit Breaker
Retail: $93.70
Price: $58.85

The Altech Corp 3B63UM 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: 63
  • Poles: 3
  • Trip Curve: B
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 3B63UM
Altech Corp 3B63UR Miniature Circuit Breaker
Retail: $65.57
Price: $41.19

The Altech Corp 3B63UR 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: 63
  • Poles: 3
  • Trip Curve: B
  • UL 1077 Listed, UL
MFG Part# 3B63UR
Altech Corp 3C63UL Miniature Circuit Breaker
Retail: $123.66
Price: $77.67

The Altech Corp 3C63UL 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: 63
  • Poles: 3
  • Trip Curve: C
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 3C63UL
Altech Corp 3C63UM Miniature Circuit Breaker
Retail: $93.70
Price: $58.85

The Altech Corp 3C63UM 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: 63
  • Poles: 3
  • Trip Curve: C
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 3C63UM
Altech Corp 3C63UR Miniature Circuit Breaker
Retail: $65.57
Price: $41.19

The Altech Corp 3C63UR 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: 63
  • Poles: 3
  • Trip Curve: C
  • UL 1077 Listed, UL
MFG Part# 3C63UR
Altech Corp 3D63UL Miniature Circuit Breaker
Retail: $123.66
Price: $77.67

The Altech Corp 3D63UL 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: 63
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, UL, cUL, IEC, CE
MFG Part# 3D63UL
Altech Corp 3D63UM Miniature Circuit Breaker
Retail: $93.70
Price: $58.85

The Altech Corp 3D63UM 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: 63
  • Poles: 3
  • Trip Curve: D
  • UL 508 Listed, UL, cUL, CSA
MFG Part# 3D63UM
Altech Corp 3D63UR Miniature Circuit Breaker
Retail: $65.57
Price: $41.19

The Altech Corp 3D63UR 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: 63
  • Poles: 3
  • Trip Curve: D
  • UL 1077 Listed, UL, CE
MFG Part# 3D63UR
Lovato P1MB1PB63 Miniature Circuit Breaker
Retail: $88.37
Price: $22.30

The Lovato P1MB1PB63 is suitable for branch circuit device protection.(Pack of 12)

  • Terminal Type: Screw
  • Amperage: 63
  • Pole: 1
  • Trip Curve: B
  • UL 1077 Listed, CSA C22.2 No. 235, IEC/EN 60947-2
MFG Part# P1MB1PB63
Lovato P1MB1PC63 Miniature Circuit Breaker
Retail: $88.37
Price: $22.30

The Lovato P1MB1PC63 is suitable for branch circuit device protection.(Pack of 12)

  • Terminal Type: Screw
  • Amperage: 63
  • Pole: 1
  • Trip Curve: C
  • UL 1077 Listed, CSA C22.2 No. 235, IEC/EN 60898-1, IEC/EN 60947-2
MFG Part# P1MB1PC63