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What temperature ranges are safe for the EATON GHG 624 explosion-protected circuit breaker?

1Answers
NadiaRose
12/17/2025, 12:50:26 PM

The ambient temperature ranges for the EATON GHG 624 Explosion-Protected Residual Current Operated Circuit Breaker are critical for its safe and effective operation. These ranges vary depending on the specific model and application, as outlined in the instruction manual. For the GHG 624 series, you'll find different temperature specifications:

  • For IIC sizes 1 through 4, the operating temperature range is between -20°C to +55°C for Serie A and Serie E.
  • For IIB sizes 1 and 2, the ambient temperature range is from -45°C to +55°C for Serie A and Serie E.
  • For IIB sizes 3 and 4, the acceptable temperature range is -20°C to +55°C for Serie A and Serie E.

It's important to understand that these temperature limits are directly tied to maintaining the explosion protection features of the circuit breaker and define the maximum allowable temperatures for the enclosure's materials. If your operating environment falls outside these specified ranges, it's essential to consult with the manufacturer, Cooper Crouse Hinds, for guidance. Adhering to the correct temperature limits is crucial for ensuring both the performance and safety of the EATON GHG 624 circuit breaker in hazardous environments; exceeding these limits could compromise its functionality and safety features.

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