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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 1DU20R Miniature Circuit Breaker
Retail: $16.17
Price: $10.16

The Altech 1DU20R 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
  • Pole: 1
  • Trip Curve: D
  • UL 1077 Listed, IEC/EN60898/60947-2
MFG Part# 1DU20R
Noark B1H1D20 Mini Circuit Breaker
Retail: $21.30
Price: $18.11

The Noark B1H1D20 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1D20
Noark B1H1D20R Mini Circuit Breaker
Retail: $20.00
Price: $17.00

The Noark B1H1D20R is suitable for branch circuit device protection.

  • Terminal Type: Ring Tounge Terminal
  • Amperage: 20
  • Pole: 1
  • Trip Curve: D
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H1D20R
Noark B1N2B20 Mini Circuit Breaker
Retail: $35.90
Price: $30.52

The Noark B1N2B20 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 2
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N2B20
Noark B1N2B20R Mini Circuit Breaker
Retail: $34.00
Price: $28.90

The Noark B1N2B20R is suitable for branch circuit device protection.

  • Terminal Type: Ring Tounge Terminal
  • Amperage: 20
  • Poles: 2
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N2B20R
Altech 2B20UR Miniature Circuit Breaker
Retail: $34.66
Price: $21.77

The Altech 2B20UR 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: 2
  • Trip Curve: B
  • UL 1077 Listed, IEC/EN60898/60947-2
MFG Part# 2B20UR
Altech 2BU20R Miniature Circuit Breaker
Retail: $32.33
Price: $20.31

The Altech 2BU20R 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: 2
  • Trip Curve: B
  • UL 1077 Listed, IEC/EN60898/60947-2
MFG Part# 2BU20R
Noark B1H2B20 Mini Circuit Breaker
Retail: $41.60
Price: $35.36

The Noark B1H2B20 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 2
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H2B20
Noark B1H2B20R Mini Circuit Breaker
Retail: $39.00
Price: $33.15

The Noark B1H2B20R is suitable for branch circuit device protection.

  • Terminal Type: Ring Tounge Terminal
  • Amperage: 20
  • Poles: 2
  • Trip Curve: B
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1H2B20R
Noark B1N2C20 Mini Circuit Breaker
Retail: $34.80
Price: $29.58

The Noark B1N2C20 is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N2C20
Noark B1N2C20R Mini Circuit Breaker
Retail: $33.00
Price: $28.05

The Noark B1N2C20R is suitable for branch circuit device protection.

  • Terminal Type: Ring Tounge Terminal
  • Amperage: 20
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, CSA C22.2 No. 5, IEC/EN 60947-2, CE, RoHS
MFG Part# B1N2C20R
Altech DC2CU20L Miniature Circuit Breaker
Retail: $64.69
Price: $40.64

The Altech DC2CU20L is suitable for branch circuit device protection.

  • Terminal Type: Box Lugs
  • Amperage: 20
  • Poles: 2
  • Trip Curve: C
  • UL 489 Listed, C22.2 No.5-02, EN 60947-2, CE
MFG Part# DC2CU20L