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AIRPAX / SENSATA M3901903257S Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/03-257S is a robust magnetic circuit breaker designed for critical applications requiring reliable circuit protection. This low-power, sealed, trip-free two-pole breaker offers a voltage rating of up to 50V DC and a current rating determined by the dash number selected from Table I. The breaker's design incorporates features like high inrush capability and time delay options to suit diverse operational needs. It is commonly used in military and industrial applications where dependable circuit protection is paramount. The use of panel screws enhances shock and vibration characteristics.

Authorized Distributors
Part No:M39019/03-257S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1751.41
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Part No:M39019/03-257S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2481.28
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Part No:M39019/03-257S
Stock:8
Inv Date:06-09-2026
Price: Unit price: $1340.41
Buy/RFQ:
Part No:M39019/03-257S
Stock:8
Inv Date:06-09-2026
Price: Unit price: $1340.41
Buy/RFQ:

AIRPAX / SENSATA M3901903257S 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: .280 (7.11 mm) minimum
  • hex_mounting_nut_thread: .375-32 UNEF-2B
  • internal_tooth_lockwasher_od: .507/.493
  • internal_tooth_lockwasher_id: .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 M3901903257S?

You can click on the BUY or RFQ button to purchase M3901903257S from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901903257S?

You can download the M3901903257S datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901903257S?

AIRPAX / SENSATA

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