EATON GHB3040 Molded Case Circuit Breaker, Type Ghb, 3-Pole, 40 A, 480Y/277 Vac, 125/250 Vdc

Eaton GHB3040 Series C circuit breaker has a GHB frame and is designed for opening a circuit under short-circuit or overload conditions. It is suitable for panelboards, switchboards, motor control centres and busways.

Features:

• This unit has a patented contact design featuring high-speed blow-open action for flexibility.
• It has a fixed thermal-magnetic trip mechanism offering long-time and instantaneous current limiting protection.
• The bolt-on mounting design allows easy installation in panels or switchboards, in both horizontal and vertical directions.

Standards and Approvals:

• UL
• CSA
• NEMA
• Federal Specifications Classification W-C375B

Frequently Asked Questions:

Q. How do you install a bolt-on circuit breaker?

A.

• Switch Off the main breaker.
• Position the circuit breaker carefully & secure it with screws to bus bars behind it.
• Connect the load wire that feeds into the unit.
• Flip the circuit breaker into the On position.
• Finally, turn the main breaker On.

Q. How does a thermal-magnetic trip work?

A.

• The trip unit is the circuit breaker component that determines when the contacts will open automatically.
• The trip unit of a thermal-magnetic circuit breaker includes elements designed to detect heat from overloading or excess current from short-circuiting.

Q. How many poles does this circuit breaker have?

A. Eaton GHB3040 breaker is a three-pole circuit interrupter.