Altech UL (AC) & DL (DC) Circuit Breakers

Altech UL (AC) and DL (DC) Circuit Breakers are available in both AC and DC models and offer 10kA short-circuit interrupting capacity. These thermal magnetic modules feature a 17.5mm width, a miniature size, and DIN-rail mounting. The series has a 0.3 to 63A current range and 6000 switching cycles of electrical life. Applications for Altech UL (AC) and DL (DC) Circuit Breakers include lighting, wiring protection, appliances, transformers, and telecommunication.


  • UL 489 miniature molded-case circuit breakers
  • AC and DC models
  • DIN rail mounted
  • Thermal magnetic
  • Current limiting (UL tested)
  • Line/load reversible


  • Lighting
  • Wiring protection
  • Control circuits
  • Business equipment
  • Appliances
  • Transformers
  • Power supplies
  • Heaters
  • Motors
  • Telecommunications
  • Computer equipment


  • 240V, 480Y/277VAC, 50/60Hz
  • 125VDC (1 pole), 250VDC (2 pole)
  • 10kA short circuit interrupting capacity
  • 25g at 11ms mechanical shock resistant
  • IP20 rating
  • 0.3 to 63A current range
  • 17.5mm width
  • -25°C to +55°C operating temperature range

Dimensions (mm)

Altech UL (AC) & DL (DC) Circuit Breakers
Published: 2019-09-03 | Updated: 2023-05-31