The power-entry module provides selection of the required input voltage, and contains the input fuse. The input power line includes a fuse. The power supply is automatically turned off by an internal switch if the temperature of the internal heat sink exceeds 110 C. Recovery is automatic when the temperature decreases to a safe value. A red light on the front panel turns on when the heat sink temperature exceeds 95 C to warn that the maximum temperature is being approached. This feature provides short-circuit and overload protection.
Recovery is automatic after the overload is removed.
Consequently, there are no hot external heat sinks exposed for accidental contact. Altitude up to 2,000 meters. Pollution degree 2. Meets all CE requirements.