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AIRPAX / SENSATA M3901901231S Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/01-231S is a low-power, sealed, trip-free, one-pole magnetic circuit breaker conforming to MIL-PRF-39019. It provides reliable overcurrent protection in various military and industrial applications. The circuit breaker's design ensures quick response to overcurrent conditions, preventing damage to connected equipment. Dimensions and configurations are detailed in Figure 1 of MIL-PRF-39019/1H. The part number includes a dash number which corresponds to specific electrical characteristics outlined in Table I, such as current rating, time delay, and resistance or impedance. Mounting hardware and terminals are also specified in Figure 1.

Authorized Distributors
Source:DigiKey
Part No:M39019/01-231S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $961.06
Buy/RFQ:
Part No:M39019/01-231S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $961.06
Buy/RFQ:
Part No:M39019/01231S
Stock:0
Inv Date:06-09-2026
Price: N/A
Buy/RFQ:
Part No:M39019/01-231S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $961.06
Buy/RFQ:
Part No:M39019/01-231S
Stock:32
Inv Date:06-09-2026
Price: Unit price: $942.22
Buy/RFQ:
Part No:M39019/01-231S
Stock:32
Inv Date:06-09-2026
Price: Unit price: $942.22
Buy/RFQ:

AIRPAX / SENSATA M3901901231S 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: .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: May appear on 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

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You can click on the BUY or RFQ button to purchase M3901901231S from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901901231S?

You can download the M3901901231S datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901901231S?

AIRPAX / SENSATA

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