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Carling Technologies MS1B1443031BBAA Sealed Metal Toggle Breaker

The Carling Technologies MS1-B series hydraulic-magnetic circuit breaker offers a compact and robust solution for critical applications. Designed with a sealed metal toggle actuator, this breaker provides reliable protection while meeting stringent ingress protection standards like IP68 and military specifications such as MIL-PRF-39019F. Its versatility extends to various configurations, including 1-3 pole setups, and amperage ratings from 0.02 to 30 amps, making it suitable for communication equipment, vehicles, generators, and power supplies. The breaker's design incorporates features like terminal barriers meeting UL 1077 spacing requirements and an optional auxiliary switch for status indication, enhancing its functionality and integration capabilities.

Authorized Distributors
Source:DigiKey
Part No:MS1-B-14-430-3-1BB-A-A
Stock:0
Inv Date:06-06-2026
Price: Unit price: $79.363
Buy/RFQ:
Source:DigiKey
Part No:MS1B1443031BBAA
Stock:0
Inv Date:06-06-2026
Price: Unit price: $79.363
Buy/RFQ:
Part No:MS1-B-14-430-3-1BB-A-A
Stock:0
Inv Date:06-07-2026
Price: Unit price: $116.86
Buy/RFQ:
Part No:MS1-B-14-430-3-1BB-A-A
Stock:0
Inv Date:06-06-2026
Price: Unit price: $119.2
Buy/RFQ:
Part No:MS1-B-14-430-3-1BB-A-A
Stock:0
Inv Date:06-06-2026
Price: Unit price: $125.48
Buy/RFQ:
Part No:MS1-B-14-430-3-1BB-A-A
Stock:0
Inv Date:06-06-2026
Price: Unit price: $125.48
Buy/RFQ:

Carling Technologies MS1B1443031BBAA Sealed Metal Toggle Breaker Specifications:

  • poles: 1-3
  • amperes: 0.02 - 30
  • voltage: 120/250 VAC, 65 VDC
  • short_circuit_current: Up to 3000 amps
  • ip_rating: IP68
  • military_standards: MIL-PRF-39019F, MIL-STD-202
  • operating_temperature: -40°C to +85°C
  • auxiliary_switch_rating: 5A @ 125VAC, 3A @ 32VDC
  • insulation_resistance: Minimum of 100 Megohms @ 500VDC
  • weight: Approximately 1.8 oz (50 G) per pole
  • agency_certifications: UL 1077 cRUus, TUV Certified
  • shock_resistance: Withstands 100G’s, 6ms
  • vibration_resistance: Withstands 0.060” excursion from 10-55 Hz
  • salt_spray_resistance: Method 101, Condition A
  • moisture_resistance: Method 106G
  • thermal_shock_resistance: Method 107D, Condition A

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Frequently Asked Questions

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You can click on the BUY or RFQ button to purchase MS1B1443031BBAA from an authorized Carling Technologies distributor.

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You can download the MS1B1443031BBAA datasheet or visit the Carling Technologies website for support.

Who is the manufacturer of MS1B1443031BBAA?

Carling Technologies

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