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AIRPAX / SENSATA M3901903231 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/03-231 is a robust magnetic circuit breaker designed for critical applications requiring reliable circuit protection. Its sealed construction and trip-free mechanism ensure safe operation under various conditions. This circuit breaker is suitable for use in military, aerospace, and industrial equipment where compact size and dependable performance are essential. The device features a maximum voltage rating of 50V DC and 240V AC at frequencies of 60Hz and 400Hz, and offers a range of current ratings and time delay options to meet specific application requirements. Its robust design and reliable performance make it a preferred choice for demanding environments.

Authorized Distributors
Source:DigiKey
Part No:M39019/03-231
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1530.24
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Part No:M39019/03-231
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1530.23
Buy/RFQ:
Part No:M39019/03-231
Stock:2
Inv Date:06-09-2026
Price: Unit price: $1667.95
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Part No:M39019/03-231
Stock:6
Inv Date:06-09-2026
Price: Unit price: $1349.64
Buy/RFQ:
Part No:M39019/03-231
Stock:6
Inv Date:06-09-2026
Price: Unit price: $1349.64
Buy/RFQ:

AIRPAX / SENSATA M3901903231 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
  • hex_mounting_nut: .375-32 UNEF-2B thread, .093 ±.005 (2.36 mm ±0.13 mm) thick or equivalent MS250820, -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
  • sealscrew: .138-32 UNC-2A x .312 (7.92 mm) long, stainless steel number 18-8 (type 347) MS35265-25 or equivalent
  • panel_screws_usage: Enhances circuit breaker shock and vibration characteristics
  • threaded_inserts_height: Exceeds height of bushing by .005 to .015 (0.13 mm to 0.38 mm)

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901903231?

You can click on the BUY or RFQ button to purchase M3901903231 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901903231?

You can download the M3901903231 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901903231?

AIRPAX / SENSATA

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