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AIRPAX / SENSATA M3901903254S Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/03-254S is a robust magnetic circuit breaker designed for critical applications requiring reliable overcurrent protection. It features a sealed, trip-free two-pole design, ensuring safe operation and preventing re-closure after a fault. This circuit breaker is suitable for use in military and industrial equipment where shock and vibration resistance are important. The device offers voltage and frequency ratings up to 50V DC and 240V AC, and provides high inrush capabilities. Its robust construction and reliable performance make it a preferred choice for demanding environments.

Authorized Distributors
Source:DigiKey
Part No:M39019/03-254S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1751.42
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Part No:M39019/03-254S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1751.41
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Part No:M39019/03-254S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2481.28
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Part No:M39019/03-254S
Stock:9
Inv Date:06-09-2026
Price: Unit price: $1340.41
Buy/RFQ:
Part No:M39019/03-254S
Stock:9
Inv Date:06-09-2026
Price: Unit price: $1340.41
Buy/RFQ:

AIRPAX / SENSATA M3901903254S 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_screw_usage: Enhances circuit breaker shock and vibration characteristics
  • threaded_insert_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 M3901903254S?

You can click on the BUY or RFQ button to purchase M3901903254S from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901903254S?

You can download the M3901903254S datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901903254S?

AIRPAX / SENSATA

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