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50A Circuit Breaker (MP-CB-50)

50A Circuit Breaker [Circuit Breakers MP-CB-50]

50A Single Pole Thermal Circuit Breakers

The Series 17 features:

  • 48 VDC maximum for 25 - 150 Amp
  • 30 VDC maximum for 175 - 200 Amp
  • Trip-free operation
  • Standard Terminations in Surface and Panel Mount (S0 and P0)
  • NEW Easy Access Terminations for Surface and Panel Mount (S1, S3, P1,)
  • Auto, manual, or switching option
  • Visible trip indication
  • Available with 1/4” and NEW 3/8” StainlessSteel Terminal Studs and Sems Nuts
  • Waterproof
  • Ignition-protected
  • Improved Robust Design
  • Made in the USA

Standard Amp Ratings

The Series 17 is available in ratings of 25, 30, 35, 40, 50, 60, 70, 80, 90, 100, 110, 120, 135, 150, 175 and 200 amps.

Maximum Voltage Ratings

Type III: 48 VDC (25 -150A); 30 VDC (175 - 200A)
Type I: 30 VDC (auto-reset)

Operating Temperature Range

-40°C/-40°F to 85°C/185°F


Panel Mount: 3.1 oz. (88 gm.)
Surface Mount: 4.0 oz. (114 gm.)

Ultimate Trip

Must Hold 100% at 25°C/77°F.
Must Trip at 135% within 1 hour.

Dielectric Strength

1,500VAC Minimum

Interrupt Capacity (25 - 150A), up to

2,500A @ 14VDC (Type III)
1,500A @ 48VDC (Type III)
3,000A @ 30VDC (Type I)

Interrupt Capacity (175 - 200A)

2,500A @ 14VDC (Type III)
1,500A @ 30VDC ( Type I and Type III)

Endurance (25 - 150A)

14VDC @ 100 cycles, 6X rating (Type I & Type III)
28VDC @ 100 cycles, 2X rating (Type III)
30VDC @ 100 cycles, 2X rating (Type I)
48VDC @ 50 cycles, 1.5X rating (Type III)

Endurance (175 - 200A)

14VDC @ 100 cycles, 6X rating (Type I, Type III 175A)
14VDC @ 50 cycles, 4X rating (Type III 200 A)
28VDC @ 50 cycles, 2X rating (Type III)
30VDC @ 100 cycles, 2X rating (Type I)


Ignition Protected
Compliant to SAE J1171

Ingress Protection

IP67 dust and waterproof rated—protection against
immersion up to 1 meter of water for 30 minutes.


Conforms to Mil-STD-202, Method 101, Test Condition A,
for 96 hours under a 5% salt spray.


Conforms to Mil-STD-202, Method 106, for 240 hours at
95% RH.


Rated to withstand 100g per Mil-STD-202, Method 213,
Test Condition A.


Rated to withstand 10g per Mil-STD-204, Test Condition A.

Regulatory Compliance Summary

Interrupt Capacity: SAE J1625, ABYC-E11, UL1077*
Ignition Protected: SAE J1171
Endurance: SAE J1625
Dielectric Strength: UL1077*
Shock, Vibration, Corrosion, Humidity: Mil-STD-202
Dust and Waterproof: IP67
*tested per UL1077 methods

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50A Circuit Breaker

  • 115.17€
  • Ex Tax: 96.78€

Tags: 50a, circuit, breaker, breakers, mechanical, products

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