SQUARE D HGL36040 Circuit Breaker, 40A, 3 Pole, 600VAC, 18KA, Thermal Magnetic

Square D HGL36040 circuit breaker is designed for use in electrical systems with voltage ratings up to 600VAC. This circuit breaker is used in industrial and commercial settings to protect circuits and equipment from overloads and short circuits. It is ideal for maintaining electrical safety by interrupting current flow when abnormalities occur, preventing damage and fire hazards.

Working Mechanism:

• This circuit breaker guards against short circuits through its swift and efficient mechanisms. Continuously monitoring current flow, it employs an instantaneous trip mechanism triggered by the sudden surge in current during a short circuit. This surge induces an electromagnetic force that quickly releases the breaker's contacts, halting the current flow. If equipped with dual-break rotating contacts, these further diminish the impact of the surge. Additionally, thermal protection aids the process by detecting rapid temperature rises.

Features:

• Square D HGL36040 circuit breaker can be operated at temperatures ranging from 28 to 158 degrees F.
• It has an integral push-to-trip button in the cover to manually trip the circuit breaker.
• This circuit breaker has interrupt ratings of 18kA at 600VAC.
• It has amperage rating of 40A and voltage rating of 690VAC.
• This circuit breaker has a built-in communication interface that supports Modbus and Ethernet protocols, enabling seamless integration into modern digital control and monitoring systems.

Frequently Asked Questions:

Q. What is the role of the communication interface in Square D HGL36040 circuit breaker?

A. The circuit breaker's communication interface allows it to communicate with external control and monitoring systems for diagnostics and data exchange.

Q. What are the benefits of the dual-break rotating contacts in this circuit breaker?

A. The dual-break rotating contacts reduce peak current during short circuits, minimising potential damage and improving safety.