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AIRPAX / SENSATA M3901903249 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/03-249 is a magnetic, low-power, sealed, trip-free two-pole circuit breaker meeting MIL-PRF-39019 specifications. Designed for robust performance in military and industrial environments, it offers reliable overcurrent protection. The circuit breaker's sealed construction ensures operation in harsh conditions, while the trip-free mechanism enhances safety. It is commonly used in aircraft, ground vehicles, and other critical systems requiring dependable circuit protection.

Authorized Distributors
Source:DigiKey
Part No:M39019/03-249
Stock:0
Inv Date:06-12-2026
Price: Unit price: $1530.24
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Part No:M39019/03-249
Stock:0
Inv Date:06-13-2026
Price: Unit price: $1530.23
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Part No:M39019/03-249
Stock:0
Inv Date:06-12-2026
Price: Unit price: $2167.78
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Part No:M39019/03-249
Stock:43
Inv Date:06-12-2026
Price: Unit price: $1019.14
Buy/RFQ:
Part No:M39019/03-249
Stock:43
Inv Date:06-12-2026
Price: Unit price: $1019.14
Buy/RFQ:

AIRPAX / SENSATA M3901903249 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 100 grams
  • pin: M39019/03-(dash number taken from table I)
  • tolerance: ±.031 (0.79 mm)
  • hex_mounting_nut_thread: .375-32 UNEF-2B
  • internal_tooth_lockwasher_od: .507/.493
  • internal_tooth_lockwasher_id: .392/.382
  • effective_bushing_thread_length: .280 (7.11 mm) minimum

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901903249?

You can click on the BUY or RFQ button to purchase M3901903249 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901903249?

You can download the M3901903249 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901903249?

AIRPAX / SENSATA

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