myMectronic
myMectronic

A Premier B2B Part Search

OptiFuse CBW284A Thermal Circuit Breaker

Line voltage circuit protector with a compact low-profile design featuring a rocker reset switch, rated for 4 amperes. It provides reliable overcurrent protection for electrical circuits, ensuring safety and quick reset after trips. Suitable for various industrial and electronic applications, it withstands voltages up to 125/250 VAC and 32 VDC, with an interrupt capacity of 1000A at 250 VAC. Easy to install with quick connect terminals and compliant with RoHS standards, this thermal circuit breaker offers durability and efficiency for demanding environments.

Authorized Distributors
Source:DigiKey
Part No:CBW28-4A
Stock:1282
Inv Date:06-05-2026
Price: Unit price: $11.15
Buy/RFQ:
Part No:CBW28-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $11.15
Buy/RFQ:
Part No:CBW28-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $6.72
Buy/RFQ:
Part No:CBW28-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $6.72
Buy/RFQ:

OptiFuse CBW284A Thermal Circuit Breaker Specifications:

  • Voltage: 125/250 VAC, 50/60 Hz and 32 VDC
  • Amperage: 4A
  • Interrupt Capacity: 1000A @ 250 VAC, 50/60Hz and 200A @ 32 VDC
  • Terminals: 0.250” [6.35mm] quick connect, nickel plated brass
  • Panel Thickness: 0.8 — 2.1mm (0.031 - 0.083 inches)
  • Mounting: Snap-In front panel mount
  • Operating Temperature: Suitable for use at 25°C
  • Standards: RoHS compliant
  • Trip Time: Trip at 135% rated current within 1 hour
  • Dimensions: Panel cutout 0.544 inches [13.84mm], overall dimensions suitable for panel thickness up to 2.1mm
  • Agency Listings: Compliant with relevant safety standards

Buy the Optifuse CBW28 – Reliable Circuit Protection for Industrial Applications

Enhance your electrical safety with the reliable Optifuse CBW28 thermal circuit breaker. Featuring a compact design, 4A rating, and easy rocker reset, it’s ideal for protecting circuits from overcurrents in industrial, electronic, and control applications. With a voltage capacity of 125/250 VAC and 32 VDC, it ensures safe operation and quick reset after trips. Certified compliant with RoHS, it offers durability, ease of installation, and dependable performance. Order online today for optimal circuit protection and peace of mind in your electrical system.

Buy Optifuse CBW28 now and experience unmatched reliability and performance with easy reset and overcurrent protection for demanding circuits.

Frequently Asked Questions

Where can I buy OptiFuse CBW284A?

You can click on the BUY or RFQ button to purchase CBW284A from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part CBW284A?

You can download the CBW284A datasheet or visit the OptiFuse website for support.

Who is the manufacturer of CBW284A?

OptiFuse

OptiFuse Part List

Browse and search other OptiFuse parts, locate datasheets and stock

Sponsored by