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AIRPAX / SENSATA M3901903258S Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/03-258S is a magnetic circuit breaker designed for low-power applications requiring a sealed, trip-free mechanism. It features a robust construction and is suitable for use in military and industrial environments where reliable circuit protection is essential. The breaker's design incorporates a two-pole configuration and offers voltage and frequency ratings up to 50V DC and 240V AC at 60Hz and 400Hz, providing versatility in various power systems. It is compliant with MIL-PRF-39019 standards and is known for its dependable performance under demanding conditions.

Authorized Distributors
Source:DigiKey
Part No:M39019/03-258S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1751.42
Buy/RFQ:
Part No:M39019/03-258S
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1751.41
Buy/RFQ:
Part No:M39019/03-258S
Stock:3
Inv Date:06-09-2026
Price: Unit price: $1909.04
Buy/RFQ:
Part No:M39019/03-258S
Stock:40
Inv Date:06-09-2026
Price: Unit price: $1230.26
Buy/RFQ:
Part No:M39019/03-258S
Stock:40
Inv Date:06-09-2026
Price: Unit price: $1230.26
Buy/RFQ:

AIRPAX / SENSATA M3901903258S 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
  • pin: M39019/03-(dash number taken from table I)
  • tolerance: ±.031 (0.79 mm)
  • effective_bushing_thread_length: 0.280 (7.11 mm) minimum
  • hex_mounting_nut_thread: .375-32 UNEF-2B
  • internal_tooth_lockwasher_od: 0.507/.493
  • internal_tooth_lockwasher_id: 0.392/.382
  • sealscrew_thread: .138-32 UNC-2A x .312 (7.92 mm) long

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901903258S?

You can click on the BUY or RFQ button to purchase M3901903258S from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901903258S?

You can download the M3901903258S datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901903258S?

AIRPAX / SENSATA

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