Circuit breaker with self-recovery protector CNC EL240302 1P+N 63A 230V

CNC EL240302 is a 1P+N overvoltage and undervoltage protector with automatic self-recovery, rated for AC 230V and a maximum operating current of 63A. The device is intended for installation on a 35 mm DIN rail and is designed to protect single‑phase residential or light‑commercial circuits by disconnecting power when voltage exceeds preset thresholds and automatically restoring supply when voltage returns to normal. The compact white enclosure includes LED indicators for power and protection status and is suitable for use in distribution boxes and other distribution lines requiring voltage protection.

Advantages

The protector provides combined overvoltage and undervoltage protection with automatic recovery, reducing the need for manual intervention after transient faults. Its compact DIN‑rail design enables straightforward installation in standard distribution panels, and LED indicators clearly show power and protection states. The device has low power consumption and a long electrical life for reliable continuous operation.

Suitable for

• Single‑phase residential electrical distribution (230V)
• Light commercial circuits requiring voltage protection
• Installation in consumer units and distribution boxes on a 35 mm DIN rail

Key specifications

• Rated voltage: AC 230V
• Rated current: 63 A
• Poles: 1P+N
• Frequency: 50/60 Hz
• Overvoltage cutoff: AC 270V ±5V
• Undervoltage cutoff: AC 170V ±5V
• Overvoltage recovery: AC 255V ±5V
• Undervoltage recovery: AC 185V ±5V
• Response time: ≤ 1 s
• Recovery time: ≤ 60 s
• Power consumption: < 2 W
• Electrical life: > 50,000 operations
• Installation: 35 mm DIN rail
• Operating temperature: -35°C to +70°C
• Dimensions: 36.5 × 78.7 × 66.5 mm
• Color: white

How to use

Mount the CNC EL240302 on a standard 35 mm DIN rail inside the distribution box with the installation surface inclination not exceeding 5°. Connect the phase and neutral conductors according to local wiring rules and the product markings. When the circuit voltage goes outside the device thresholds, it will automatically open the circuit; once voltage returns within the recovery range the protector will reset and restore supply. Observe correct tightening torques for terminals and ensure the unit is installed in a dry, ventilated enclosure.

Recommendations

Use this device in single‑phase 230V circuits with a maximum continuous current not exceeding 63A. Do not install in environments where relative humidity at 40°C exceeds 50% or where the installation surface is inclined by more than 5°. For permanent safety and compliance, follow local electrical codes and have installation performed or verified by a qualified electrician.