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AIRPAX / SENSATA M3901903320S Magnetic Circuit Breaker

The AIRPAX / SENSATA M39019/03-320S is a robust magnetic circuit breaker designed for critical applications requiring reliable overcurrent protection. It features a sealed construction and trip-free mechanism, ensuring safe operation. The breaker is suitable for use in military and industrial environments where shock and vibration resistance are essential. Its design incorporates features like hex mounting nuts and internal tooth lockwashers for secure installation and performance. The part number indicates specific electrical characteristics and time delay settings, allowing for tailored circuit protection solutions.

Authorized Distributors
Source:Newark
Part No:M39019/03-320S
Stock:1
Inv Date:06-09-2026
Price: Unit price: $1901.59
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Source:DigiKey
Part No:M39019/03-320S
Stock:0
Inv Date:06-09-2026
Price: Unit price: $1846.2
Buy/RFQ:
Source:DigiKey
Part No:M39019/03-320S
Stock:1
Inv Date:06-09-2026
Price: Unit price: $1462.57
Buy/RFQ:
Part No:M39019/03-320S
Stock:0
Inv Date:06-10-2026
Price: Unit price: $1846.2
Buy/RFQ:
Part No:M39019/03-320S
Stock:3
Inv Date:06-09-2026
Price: Unit price: $940.98
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Part No:M39019/03-320S
Stock:3
Inv Date:06-09-2026
Price: Unit price: $1400.32
Buy/RFQ:
Part No:M39019/03-320S
Stock:3
Inv Date:06-09-2026
Price: Unit price: $1400.32
Buy/RFQ:

AIRPAX / SENSATA M3901903320S Magnetic Circuit Breaker Specifications:

  • performance_specification_sheet: Circuit breakers, magnetic, low-power, sealed, trip-free two-pole
  • 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
  • pin: The PIN shall be M39019/03-(dash number taken from table I)
  • weight: Approximately 100 grams
  • hex_mounting_nut: .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
  • 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
  • numerical_marking: Optional on circuit diagram
  • sealscrew: .138-32 UNC-2A x .312 (7.92 mm) long, stainless steel number 18-8 (type 347) MS35265-25 or equivalent
  • panel_screws_usage: Enhances circuit breaker shock and vibration characteristics
  • threaded_inserts_height: Exceeds height of bushing by .005 to .015 (0.13 mm to 0.38 mm)

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Frequently Asked Questions

Where can I buy AIRPAX / SENSATA M3901903320S?

You can click on the BUY or RFQ button to purchase M3901903320S from an authorized AIRPAX / SENSATA distributor.

How do I troubleshoot issues or seek technical support for part M3901903320S?

You can download the M3901903320S datasheet or visit the AIRPAX / SENSATA website for support.

Who is the manufacturer of M3901903320S?

AIRPAX / SENSATA

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