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AIRPAX / SENSATA M3901901251S Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/01-251S is a low-power, magnetic, trip-free, one-pole circuit breaker conforming to MIL-PRF-39019. Designed for use in military and industrial applications, this circuit breaker provides reliable overcurrent protection. It features a sealed construction to prevent contamination and a trip-free mechanism for quick response. The device's dimensions vary based on the dash number, with metric equivalents provided for general information. It is crucial to consult the complete MIL-PRF-39019 specification for detailed requirements and applicable characteristics.

Authorized Distributors
Source:DigiKey
Part No:M39019/01-251S
Stock:0
Inv Date:06-08-2026
Price: Unit price: $961.06
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Part No:M39019/01-251S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $961.06
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Part No:M39019/01-251S
Stock:0
Inv Date:06-08-2026
Price: Unit price: $932.02
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Part No:M39019/01-251S
Stock:46
Inv Date:06-08-2026
Price: Unit price: $1152.71
Buy/RFQ:
Part No:M39019/01-251S
Stock:46
Inv Date:06-08-2026
Price: Unit price: $1152.71
Buy/RFQ:

AIRPAX / SENSATA M3901901251S 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
  • hex_mounting_nut_thread: .375-32 UNEF-2B thread, .093 ±.005 (2.36 mm ±0.13 mm) thick or equivalent MS25082-20, -B20
  • internal_tooth_lockwasher: .507/.493 O.D., .392/.382 I.D., .025 ±.005 (0.64 mm ±0.13mm) thick, stainless steel or equivalent MS35333-134
  • effective_bushing_thread_length: .280 (7.11 mm) minimum
  • marking_location: Any surface except the mounting surface
  • lock_ring_requirement: Not required if on-off plate has locking tab
  • numerical_marking: Optional on circuit diagram
  • terminal_screw: MS35265-26 or equivalent

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901901251S?

You can click on the BUY or RFQ button to purchase M3901901251S from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901901251S?

You can download the M3901901251S datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901901251S?

AIRPAX / SENSATA

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