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AIRPAX / SENSATA M3901905258S Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/05-258S is a critical component for electrical systems requiring robust overcurrent protection. This low-power, sealed, trip-free three-pole magnetic circuit breaker is designed to meet stringent military specifications. Its sealed construction ensures reliable operation in harsh environments, while the trip-free mechanism enhances safety. Commonly used in military applications, aerospace, and industrial control systems, the M39019/05-258S provides dependable circuit protection and contributes to the overall system's integrity. The part features a hex mounting nut and internal tooth lockwasher for secure installation.

Authorized Distributors
Source:DigiKey
Part No:M39019/05-258S
Stock:0
Inv Date:06-08-2026
Price: Unit price: $2443.56
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Part No:M39019/05-258S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $2443.55
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Part No:M39019/05-258S
Stock:0
Inv Date:06-08-2026
Price: Unit price: $3461.71
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Part No:M39019/05-258S
Stock:3
Inv Date:06-08-2026
Price: Unit price: $2317.99
Buy/RFQ:
Part No:M39019/05-258S
Stock:3
Inv Date:06-08-2026
Price: Unit price: $2317.99
Buy/RFQ:

AIRPAX / SENSATA M3901905258S 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)
  • effective_bushing_thread_length: 0.280 (7.11 mm) minimum
  • tolerance: ±.031 (0.79 mm)
  • hex_mounting_nut_thread: .375-32 UNEF-2B
  • internal_tooth_lockwasher_od: 0.507/.493
  • internal_tooth_lockwasher_id: 0.392/.382
  • internal_tooth_lockwasher_thickness: 0.025 ±.005 (0.64 ±0.13mm)

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901905258S?

You can click on the BUY or RFQ button to purchase M3901905258S from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901905258S?

You can download the M3901905258S datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901905258S?

AIRPAX / SENSATA

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