LV External Circuit Breakers (ECB)

HS1 series “low voltage molded case” circuit breakers are suitable for 50/60Hz AC systems with insulation voltage up to 1000V, an operating voltage of AC 400V/230V, and a rated current ranging from 125A to 400A. They provide integrated protection for both power distribution and motors, with smart options such as the HS1E model that can be installed inside meter boxes and interact with measurement systems.

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Key Features

  • Comprehensive protection against overload and short circuits with an isolation feature.
  • Secure design with lock switch (anti-lock) and terminal cover with IP30 protection rating
  • High efficiency in thermal endurance up to 55°C, and voltage pulse endurance up to 8kV.
  • Compact design free from arc spark thanks to AD Arc Drive technology
  • Easily adjustable by adding internal accessories

Uses and Applications

Residential Buildings Under Construction
Industrial sector
Energy infrastructure

Why HS1E?

Licensed & Insured
Smart Remote Capabilities: Offers full remote control, monitoring, and diagnostics including telemetry, remote signals, and automated re-closing.
Comprehensive Protection: Built-in safeguards against phase faults, overload, ground faults, and voltage drops ensure system stability.
High Durability & Safety: Made from high-quality Cycloaliphatic Epoxy Resin for water resistance, fire safety, and zero explosion risk.
Compact & Maintenance-Free: Lightweight, long-lasting design that requires no maintenance, ideal for efficient, space-conscious installations.