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AIRPAX / SENSATA M3901902321 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/02-321 is a magnetic circuit breaker designed for low-power applications. It is sealed and trip-free, providing reliable circuit protection. The breaker includes auxiliary contacts for additional functionality and is suitable for use in military and industrial equipment. Its robust design ensures consistent performance under various operating conditions. The part number allows for configuration options with screw terminals and insulating blocks, catering to diverse integration needs. It is a critical component for ensuring the safety and reliability of electrical systems.

Authorized Distributors
Source:DigiKey
Part No:M39019/02-321
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1048.45
Buy/RFQ:
Part No:M39019/02-321
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1048.45
Buy/RFQ:
Part No:M39019/02-321
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1016.72
Buy/RFQ:
Part No:M39019/02-321
Stock:4
Inv Date:06-09-2026
Price: Unit price: $807.67
Buy/RFQ:
Part No:M39019/02-321
Stock:4
Inv Date:06-09-2026
Price: Unit price: $807.67
Buy/RFQ:

AIRPAX / SENSATA M3901902321 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 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
  • auxiliary_contact_terminals: Accommodate two number 20 AWG wires
  • 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

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901902321?

You can click on the BUY or RFQ button to purchase M3901902321 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901902321?

You can download the M3901902321 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901902321?

AIRPAX / SENSATA

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