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Carling Technologies BB2B034450121D B-Series Circuit Breaker

The CARLING TECHNOLOGIES B-Series circuit breaker is designed for world market applications, utilizing hydraulic magnetic principles for precise operation. It offers a wide range of configurations, including 1-6 poles, current ratings from 0.02 to 50 amps, and voltage options up to 277 VAC or 80 VDC. This circuit breaker is suitable for diverse applications such as power supplies, medical equipment, office equipment, control panels, and marine equipment. It meets various agency certifications including UL, CSA, TUV, and VDE, ensuring reliable protection and performance in demanding industrial environments. The B-Series is also designed to withstand shock, vibration, moisture, and thermal shock, making it a robust and dependable solution.

Authorized Distributors
Source:DigiKey
Part No:BB2-B0-34-450-121-D
Stock:0
Inv Date:06-06-2026
Price: Unit price: $64.868
Buy/RFQ:
Source:DigiKey
Part No:BB2B034450121D
Stock:0
Inv Date:06-06-2026
Price: Unit price: $64.868
Buy/RFQ:
Part No:BB2-B0-34-450-121-D
Stock:0
Inv Date:06-07-2026
Price: Unit price: $58.3
Buy/RFQ:
Part No:BB2-B0-34-450-121-D
Stock:0
Inv Date:06-06-2026
Price: Unit price: $59.47
Buy/RFQ:
Part No:BB2-B0-34-450-121-D
Stock:0
Inv Date:06-06-2026
Price: Unit price: $62.82
Buy/RFQ:
Part No:BB2-B0-34-450-121-D
Stock:0
Inv Date:06-06-2026
Price: Unit price: $62.82
Buy/RFQ:

Carling Technologies BB2B034450121D B-Series Circuit Breaker Specifications:

  • Maximum Voltage: 277VAC 50/60 Hz, 80VDC
  • Endurance: 10,000 ON-OFF operations @ 6 per minute
  • Current Ratings: Standard current coils: 0.100, 0.250, 0.500, 0.750, 1.00, 2.50, 5.00, 7.50, 10.0, 15.0, 20.0, 25.0, 30.0, 35.0, 40.0 and 50.0 amps
  • Standard Voltage Coils: DC - 6V, 12V; AC - 120V
  • Auxiliary Switch Rating: SPDT; 10.1 AMPS - 250VAC, 1.0A 65 VDC, 0.5A 80 VDC, 0.1 Amps - 125VAC
  • Insulation Resistance: Minimum of 100 Megohms at 500 VDC
  • Dielectric Strength: UL, CSA - 1500 V 50/60 Hz for one minute
  • Number of Poles: 1 - 6 poles at 30 Amps or less. 1 and 2 poles at 31 Amps thru 50 Amps
  • Internal Circuit Config: Series, (with or without auxiliary switch), Shunt and Relay with current or voltage trip coils, Dual Coil, Switch Only (with or without auxiliary switch)
  • Weight: Approximately 65 grams/pole
  • Standard Colors: Housing- Black; Actuator - See Ordering Scheme
  • Operating Temperature: -40° C to +85° C
  • Shock Withstand: 100 Gs, 6ms
  • Vibration Withstand: 0.060" excursion from 10-55 Hz
  • Moisture Resistance: Ten 24-hour cycles @ + 25°C to +65°C, 80-98% RH
  • Thermal Shock: Five cycles @ -55°C to +25°C to +85°C to +25°C

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Carling Technologies

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