UL 489 AC Miniature Circuit Breaker 5 Amp 3 Pole D Curve 480Y 277V AC 10kA SCCR Thermal Magnetic Trip DIN Rail White WMBB3D05-1 No Fuss Panel Duty Easy DIN Rail Install Reliable Circuit Protection For Home Or Small Business

UL 489 AC Miniature Circuit Breaker 5 Amp 3 Pole D Curve 480Y 277V AC 10kA SCCR Thermal Magnetic Trip DIN Rail White WMBB3D05-1 No Fuss Panel Duty Easy DIN Rail Install Reliable Circuit Protection For Home Or Small Business

Name: UL 489 AC Miniature Circuit Breaker 5 Amp 3 Pole D Curve 480Y 277V AC 10kA SCCR Thermal Magnetic Trip DIN Rail White WMBB3D05-1 No Fuss Panel Duty Easy DIN Rail Install Reliable Circuit Protection For Home Or Small Business
Brand: Bearings
SKU: ul-489-ac-miniature-circuit-breaker-5-amp-3-pole-d
Availability: InStock

$18.04

Original: $51.54

-65%

$51.54

$18.04

The Story

UL 489 5A 3-Pole DIN Rail Breaker, single unit for homes
✔️ 3-pole, 5A, 480Y/277V AC, 10kA SCCR, DIN rail mount

Designed for residential and small business electrical panels, this UL 489 miniature circuit breaker is a compact, DIN-rail mounted protector. It provides reliable overcurrent protection for branch circuits in typical HVAC, lighting, and outlet circuits.

✅ 5 Amp rating for branch circuit protection
✅ 3-pole D Curve trip characteristics for accurate protection
✅ 480Y/277V AC voltage rating suitable for commercial circuits
✅ 10kA SCCR for robust short-circuit protection
✅ DIN rail mounting simplifies installation and retrofits

💡 What is a UL 489 AC miniature circuit breaker used for in electrical panels? It’s a handy safety device that protects wiring by interrupting current during overloads or faults in residential and small business panels. - Overcurrent protection for branch circuits in residential and small business panels - Thermal-magnetic trip handles overloads and short circuits - DIN rail mounting simplifies panel upgrades - Rated for 480Y/277V AC with 10kA SCCR for reliable protection