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AIRPAX / SENSATA M3901902231 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/02-231 is a magnetic circuit breaker designed for low-power applications requiring reliable overcurrent and short-circuit protection. This device is characterized by its trip-free design and one-pole configuration, making it suitable for use in military and industrial equipment. It adheres to MIL-PRF-39019 standards, ensuring consistent performance and quality. The circuit breaker's dimensions and configuration are detailed in Figure 1, with slight deviations acceptable as long as they do not compromise functionality. Auxiliary contact terminals are located on the back side and accommodate two number 20 AWG wires. The effective bushing thread length is a minimum of .280 inches. Marking can appear on any surface except the mounting surface. This circuit breaker is a critical component for ensuring the safety and reliability of electrical systems.

Authorized Distributors
Source:DigiKey
Part No:M39019/02-231
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1001.32
Buy/RFQ:
Part No:M39019/02-231
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1001.32
Buy/RFQ:
Part No:M39019/02-231
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1256.13
Buy/RFQ:
Part No:M39019/02-231
Stock:10
Inv Date:06-09-2026
Price: Unit price: $768.11
Buy/RFQ:
Part No:M39019/02-231
Stock:10
Inv Date:06-09-2026
Price: Unit price: $768.11
Buy/RFQ:

AIRPAX / SENSATA M3901902231 Magnetic Circuit Breaker Specifications:

  • voltage_and_frequency_rating: 50 V dc, maximum and 240 V ac, maximum at 60 Hz and 400 Hz
  • high_inrush: 800 percent at 60 Hz and dc, 1,400 percent at 400 Hz
  • current_rating: See table I
  • time_delay: See table I
  • resistance_or_impedance: See table I
  • weight: Approximately 50 grams
  • pin: M39019/02-(dash number taken from table I)
  • tolerance: ±.031 (0.79 mm)
  • effective_bushing_thread_length: .280 (7.11 mm) minimum

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901902231?

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How do I troubleshoot issues or seek technical support for part M3901902231?

You can download the M3901902231 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901902231?

AIRPAX / SENSATA

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