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AIRPAX / SENSATA M3901906321 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/06-321 is a robust magnetic circuit breaker designed for critical applications within the Department of Defense and other industries. This trip-free device provides reliable circuit protection with auxiliary contacts for enhanced functionality. It is characterized by its sealed construction, low-power operation, and ability to interrupt circuits up to a specified voltage and frequency rating. The breaker's design incorporates features like high inrush capability and time delay characteristics, ensuring effective protection against overcurrent conditions. Its robust construction and adherence to MIL-PRF-39019 standards make it suitable for demanding environments where reliability is paramount.

Authorized Distributors
Source:DigiKey
Part No:M39019/06-321
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2407.67
Buy/RFQ:
Part No:M39019/06-321
Stock:0
Inv Date:06-10-2026
Price: Unit price: $2407.66
Buy/RFQ:
Part No:M39019/06-321
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2455.81
Buy/RFQ:
Part No:M39019/06-321
Stock:6
Inv Date:06-09-2026
Price: Unit price: $1982.41
Buy/RFQ:
Part No:M39019/06-321
Stock:6
Inv Date:06-09-2026
Price: Unit price: $1982.41
Buy/RFQ:

AIRPAX / SENSATA M3901906321 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 150 grams
  • hex_mounting_nut: .375-32 UNEF-2B thread, .093 ±.005 (2.36 ±0.13 mm) thick or equivalent MS25082-20, -B20
  • internal_tooth_lockwasher: .507/.493 O.D., .392/.382 I.D., .025 ±.005 (0.64 ±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: exceed 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 M3901906321?

You can click on the BUY or RFQ button to purchase M3901906321 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901906321?

You can download the M3901906321 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901906321?

AIRPAX / SENSATA

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