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AIRPAX / SENSATA M3901905258 Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/05-258 is a critical component for electrical systems requiring reliable overcurrent protection. This low-power, sealed, trip-free three-pole magnetic circuit breaker is designed to interrupt circuit currents under fault conditions, preventing damage to equipment and ensuring safety. It finds application in military, aerospace, and industrial environments where dependability and compact size are essential. The breaker's sealed construction protects internal components from environmental contaminants, while the trip-free mechanism ensures rapid response to overcurrent events. Its robust design and adherence to MIL-PRF-39019 standards guarantee consistent performance under demanding conditions.

Authorized Distributors
Source:DigiKey
Part No:M39019/05-258
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2108.93
Buy/RFQ:
Part No:M39019/05-258
Stock:9
Inv Date:06-10-2026
Price: Unit price: $2108.92
Buy/RFQ:
Part No:M39019/05-258
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2215.64
Buy/RFQ:
Part No:M39019/05-258
Stock:8
Inv Date:06-09-2026
Price: Unit price: $1196.12
Buy/RFQ:
Part No:M39019/05-258
Stock:8
Inv Date:06-09-2026
Price: Unit price: $1196.12
Buy/RFQ:

AIRPAX / SENSATA M3901905258 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
  • pin: M39019/05-(dash number taken from table I)
  • tolerance: ±.031 (0.79 mm)
  • hex_mounting_nut_thread: .375-32 UNEF-2B
  • internal_tooth_lockwasher_od: .507/.493
  • internal_tooth_lockwasher_id: .392/.382
  • internal_tooth_lockwasher_thickness: .025 ±.005 (0.64 ±0.13mm)

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901905258?

You can click on the BUY or RFQ button to purchase M3901905258 from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901905258?

You can download the M3901905258 datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901905258?

AIRPAX / SENSATA

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