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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 DC1CU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 125 VDC) | DC1CU02L
Retail: $32.33
Price: $20.31

The Altech DC1CU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# DC1CU02L
Altech 1CU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 1 Pole, C-Curve (Rated to 277 VAC) | 1CU02L
Retail: $30.04
Price: $18.87

The Altech 1CU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Pole: 1
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 1CU02L
Altech DC1DU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 125 VDC) | DC1DU02L
Retail: $32.33
Price: $20.31

The Altech DC1DU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# DC1DU02L
Altech 1DU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 1 Pole, D-Curve (Rated to 277 VAC) | 1DU02L
Retail: $30.04
Price: $18.87

The Altech 1DU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 1DU02L
Altech DC2CU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 2 Pole, C-Curve (Rated to 250 VDC) | DC2CU02L
Retail: $64.69
Price: $40.64

The Altech DC2CU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# DC2CU02L
Altech 2CU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 2 Pole, C-Curve (Rated to 480Y/277 VAC) | 2CU02L
Retail: $60.06
Price: $37.73

The Altech 2CU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 2CU02L
Altech DC2DU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 2 Pole, D-Curve (Rated to 250 VDC) | DC2DU02L
Retail: $64.69
Price: $40.64

The Altech DC2DU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Poles: 2
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# DC2DU02L
Altech 2DU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 2 Pole, D-Curve (Rated to 480Y/277 VAC) | 2DU02L
Retail: $60.06
Price: $37.73

The Altech 2DU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Poles: 2
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 2DU02L
Altech 3CU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 3 Pole, C-Curve (Rated to480Y/277 VAC) | 3CU02L
Retail: $90.10
Price: $56.59

The Altech 3CU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Poles: 3
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3CU02L
Altech 3DU02L Miniature Circuit Breaker
0.2A Miniature Circuit Breaker, 3 Pole, D-Curve (Rated to 480Y/277 VAC) | 3DU02L
Retail: $90.10
Price: $56.59

The Altech 3DU02L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.2
  • Poles: 3
  • Trip Curve: D
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# 3DU02L
Noark B1NQ1B0.5 Mini Circuit Breaker
0.5A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 240 VAC) | B1NQ1B0.5
Retail: $12.00
Price: $10.20

The Noark B1NQ1B0.5 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 0.5
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1NQ1B0.5
Noark B1NQ1B0.5T Mini Circuit Breaker
0.5A Miniature Circuit Breaker, 1 Pole, B-Curve (Rated to 240 VAC) | B1NQ1B0.5T
Retail: $12.00
Price: $10.20

The Noark B1NQ1B0.5T is suitable for branch circuit device protection.

  • Terminal Type: Quick Connection
  • Amperage: 0.5
  • Pole: 1
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1NQ1B0.5T
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