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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 3C10UL Miniature Circuit Breaker
Retail: $97.65
Price: $61.34

The Altech 3C12UL is suitable for branch circuit device protection.

  • Terminal Type: Dual Connection (Box Clamp or Ring Tongue)
  • Amperage: 12
  • Poles: 3
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3C12UL
Altech 3CU12R Miniature Circuit Breaker
Retail: $48.51
Price: $30.48

The Altech 3CU12R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.

  • Terminal Type: Box Lugs
  • Amperage: 12
  • Poles: 3
  • Trip Curve: C
  • UL 1077 Listed, IEC/EN60898/60947-2
MFG Part# 3CU12R
Altech 3CU12L Miniature Circuit Breaker
Retail: $90.10
Price: $56.59

The Altech 3CU12L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 12
  • Poles: 3
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3CU12L
Altech 3D12UL Miniature Circuit Breaker
Retail: $97.65
Price: $61.34

The Altech 3D12UL is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 12
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3D12UL
Altech 3DU12L Miniature Circuit Breaker
Retail: $90.10
Price: $56.59

The Altech 3DU12L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 12
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3DU12L
Altech 3DU12R Miniature Circuit Breaker
Retail: $48.51
Price: $30.48

The Altech 3DU12R is suitable for applications that require supplemental protection for control circuits and on the load side of branch circuit protectors.

  • Terminal Type: Box Lugs
  • Amperage: 12
  • Poles: 3
  • Trip Curve: D
  • UL 1077 Listed, IEC/EN60898/60947-2
MFG Part# 3DU12R
Lovato P1MBUH1PC12 Miniature Circuit Breaker
Retail: $49.23
Price: $24.61

The Lovato P1MBUH1PC12 is suitable for branch circuit device protection.(Pack of 12)

  • Terminal Type: Screw
  • Amperage: 12
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, IEC/EN 60947-2
MFG Part# P1MBUH1PC12
Lovato P1MBUH2PC12 Miniature Circuit Breaker
Retail: $117.15
Price: $49.22

The Lovato P1MBUH2PC12 is designed to protect feeder circuits, the part of the system from the network supply point to the protection device for a branch circuit. (Pack of 6)

  • Terminal Type: Screw
  • Amperage: 12
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, EAC, cUlus, IEC/EN/BS 60947-2
MFG Part# P1MBUH2PC12
Lovato P1MBUH2PD12 Miniature Circuit Breaker
Retail: $117.15
Price: $49.22

The Lovato P1MBUH2PD12 is designed to protect feeder circuits, the part of the system from the network supply point to the protection device for a branch circuit. (Pack of 6)

  • Terminal Type: Screw
  • Amperage: 12
  • Poles: 2
  • Trip Curve: D
  • UL 489 Listed, EAC, cUlus, IEC/EN/BS 60947-2
MFG Part# P1MBUH2PD12
Lovato P1MBUH3PC12 Miniature Circuit Breaker
Retail: $185.06
Price: $73.82

The Lovato P1MBUH3PC12 is suitable for branch circuit device protection. (Pack of 4)

  • Terminal Type: Screw
  • Amperage: 12
  • Poles: 3
  • Trip Curve: C
  • UL 489 Listed, IEC/EN 60947-2
MFG Part# P1MBUH3PC12
Lovato P1MBUH3PD12 Miniature Circuit Breaker
Retail: $185.06
Price: $73.82

The Lovato P1MBUH3PD12 is suitable for branch circuit device protection. (Pack of 4)

  • Terminal Type: Screw
  • Amperage: 12
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, EAC, cULus, IEC/EN60947-2
MFG Part# P1MBUH3PD12
Noark B1N1B13 Mini Circuit Breaker
Retail: $18.20
Price: $15.47

The Noark B1N1B13 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 13
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N1B13