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OptiFuse CBW58HS4A Thermal Circuit Breaker

The CBW58HS4A thermal circuit breaker provides reliable overcurrent protection for various electrical circuits. Featuring a push-to-reset button and a standard profile design, it supports amperage ratings from 3A to 50A and operates on voltage levels of 125/250 VAC and 50 VDC. With a dielectric strength of 1,500 VAC for one minute, it ensures safety and durability. Its construction includes tin-plated body and terminals, making it suitable for marine ignition protected applications in compliance with UL, CSA, and RoHS standards. The device offers easy installation with its multiple bushing and terminal configurations, designed for robust electrical performance in demanding environments.

Authorized Distributors
Part No:CBW58-HS-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $5.06
Buy/RFQ:
Part No:CBW58-HS-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $5.06
Buy/RFQ:

OptiFuse CBW58HS4A Thermal Circuit Breaker Specifications:

  • Amperage Range: 3A - 50A
  • Voltage: 125 / 250 VAC, 50 VDC
  • Dielectric Strength: 1,500 VAC / 1 Minute
  • Interrupting Rating: 3-50A 1000A @ 125/250VAC, 3-30A 400A @ 125/250VAC, 3-50A 300A @ 50 VDC
  • Insulation Resistance: > 500M Q
  • Contact Endurance: 125 VAC @ 150% of Rated Current-500 Cycles
  • Reset Time: 60 seconds
  • Body: Black, Tin Plated Terminals
  • Mechanical Dimensions: 1.38 inches (35 mm) height, 0.46 inches (11.8 mm) width, and various bushing configurations
  • Agency Standards: UL, CSA, RoHS, VDE, TUV, CCC; Marine Ignition Protected to SAE J1171 and UL1500
  • Suitable for overcurrent protection in electrical circuits with easy reset and robust construction
  • Maximum internal resistance varies from 0.0062 to 0.0502 ohms depending on current rating

Buy the Buy Optifuse Thermal Circuit Breaker Part Number CBW58HS4A Online

Discover the reliability and safety of the Optifuse CBW58HS4A thermal circuit breaker. Designed for industrial and marine applications, this device offers overcurrent protection with a push-to-reset feature. Supporting current ratings from 3A to 50A and operating on 125/250VAC and 50VDC, it ensures your electrical systems are protected against overload conditions. Its durable construction, meeting UL, CSA, and RoHS standards, makes it ideal for demanding environments. Purchase online today for fast delivery and peace of mind in your electrical setups.

Get Optifuse CBW58HS4A today—built for reliable overcurrent protection and easy reset in demanding electrical environments.

Frequently Asked Questions

Where can I buy OptiFuse CBW58HS4A?

You can click on the BUY or RFQ button to purchase CBW58HS4A from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part CBW58HS4A?

You can download the CBW58HS4A datasheet or visit the OptiFuse website for support.

Who is the manufacturer of CBW58HS4A?

OptiFuse

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