Technical Overview

The Phoenix Contact 0903023 (EC-E1 1A) is a premium electronic circuit breaker engineered to selectively protect 24V DC load circuits. Designed with active electronic current limiting, it restricts short-circuit and overload currents to 1.3 - 1.8 times the nominal 1A rating. This fast response time prevents power dips or failures in associated circuits, ensuring the continuous safety of switched-mode power supplies. Key hardware features include a Normally Open (N/O) status signaling contact for remote system monitoring, a multi-colored LED for localized status indication, and reliable screw-clamp connections. Its slim 12.5mm profile mounts easily on standard DIN rails, serving as a highly effective space-saving solution for industrial control cabinets.

Key Features

• Selective protection for 24 V DC load circuits on switched-mode power supply units
• Limits residual current dynamically to 1.3 - 1.8 times the nominal 1A current
• Integrated floating remote indication contact (Normally Open) for status monitoring
• Space-saving 12.5mm width for high-density DIN rail cabinet installations
• Multi-colored LED for clear, immediate visual status indication
• Screw-clamp connection system ensures secure wiring in vibrating environments

Technical Specification Matrix

Industrial Applications