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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 3CU20L Miniature Circuit Breaker
Retail: $90.10
Price: $56.59

The Altech 3CU20L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 3
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3CU20L
Noark B1N3D20 Mini Circuit Breaker
Retail: $53.00
Price: $45.05

The Noark B1N3D20 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N3D20
Noark B1N3D20R Mini Circuit Breaker
Retail: $49.00
Price: $41.65

The Noark B1N3D20R is suitable for branch circuit device protection.

  • Terminal Type: Ring Tounge Terminal
  • Amperage: 20
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N3D20R
Altech 3D20UL Miniature Circuit Breaker
Retail: $97.65
Price: $61.34

The Altech 3D20UL is suitable for branch circuit device protection.

  • Terminal Type: Dual Connection Terminal (Ring and Box)
  • Amperage: 20
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3D20UL
Altech 3DU20L Miniature Circuit Breaker
Retail: $90.10
Price: $56.59

The Altech 3DU20L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3DU20L
Altech 3DU20R Miniature Circuit Breaker
Retail: $48.51
Price: $30.48

The Altech 3DU20R 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: 20
  • Poles: 3
  • Trip Curve: D
  • UL 1077 Listed, IEC/EN60898/60947-2
MFG Part# 3DU20R
Noark B1H3D20 Mini Circuit Breaker
Retail: $62.90
Price: $53.47

The Noark B1H3D20 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H3D20
Noark B1H3D20R Mini Circuit Breaker
Retail: $57.00
Price: $48.45

The Noark B1H3D20R is suitable for branch circuit device protection.

  • Terminal Type: Ring Tounge Terminal
  • Amperage: 20
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H3D20R
Lovato P1MB1PB20 Miniature Circuit Breaker
Retail: $32.26
Price: $15.38

The Lovato P1MB1PB20 is suitable for branch circuit device protection.(Pack of 12)

  • Terminal Type: Screw
  • Amperage: 20
  • Pole: 1
  • Trip Curve: B
  • UL 1077 Listed, CSA C22.2 No. 235, IEC/EN 60947-2
MFG Part# P1MB1PB20
Lovato P1MB1PC20 Miniature Circuit Breaker
Retail: $32.26
Price: $15.38

The Lovato P1MB1PC20 is suitable for branch circuit device protection.(Pack of 12)

  • Terminal Type: Screw
  • Amperage: 20
  • Pole: 1
  • Trip Curve: C
  • UL 1077 Listed, CSA C22.2 No. 235, IEC/EN 60898-1, IEC/EN 60947-2
MFG Part# P1MB1PC20
Lovato P1MBUH1PC20 Miniature Circuit Breaker
Retail: $49.23
Price: $24.61

The Lovato P1MBUH1PC20 is suitable for branch circuit device protection.(Pack of 12)

  • Terminal Type: Screw
  • Amperage: 20
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, IEC/EN 60947-2
MFG Part# P1MBUH1PC20
Lovato P1MB1PD20 Miniature Circuit Breaker
Retail: $32.26
Price: $15.38

The Lovato P1MB1PD20 is suitable for branch circuit device protection.(Pack of 12)

  • Terminal Type: Screw
  • Amperage: 20
  • Pole: 1
  • Trip Curve: D
  • UL 1077 Listed, CSA C22.2 No. 235, IEC/EN 60947-2
MFG Part# P1MB1PD20