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Siemens HEB3B040B 3-Pole Miniature Circuit Breaker - 40A

Siemens HEB3B040B 3-Pole Miniature Circuit Breaker.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part numberHEB3B040B

Poles 3

Current Rating 40A

Voltage Rating 480Y/277VAC

Trip Type Thermal-Magnetic

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12-month warranty

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Veteran-owned

CAGE: 9NK75

3-Pole configuration 40A current rating Thermal-magnetic trip 10kA breaking capacity Reliable Siemens quality Industrial grade

Product description

The Siemens HEB3B040B is a high-performance miniature circuit breaker designed for reliable electrical protection. It features a 3-pole configuration and a current rating of 40 Amperes, suitable for a wide range of industrial and commercial applications. This breaker offers robust protection against overcurrents and short circuits, ensuring the safety and integrity of electrical systems.

Ideal for use in control panels, distribution boards, and machinery, the HEB3B040B is a staple in industries such as manufacturing, automation, and building management. Its durable construction ensures long-lasting performance in demanding environments, safeguarding equipment and preventing downtime.

As a veteran-owned surplus parts distributor, Stanlo Automation provides access to essential components like the Siemens HEB3B040B. We understand the critical need for reliable and cost-effective solutions, offering prompt service and expert support to get your operations back online quickly.

Technical specifications

Poles	3
Current Rating	40A
Voltage Rating	480Y/277VAC
Trip Type	Thermal-Magnetic
Series	HEB
Breaking Capacity	10kA

Common applications

Industrial control panels

Motor protection

Commercial buildings

Electrical distribution

Machine safety

Power distribution

Compatible systems

Industrial control systems Building management systems Power distribution units

Also known as

Siemens HEB 3B040B HEB3B040B breaker Siemens 40A 3P breaker

Replaces / compatible with

This part is a direct replacement for other Siemens HEB series breakers with identical specifications. Consult the manual for specific cross-references.

Technical note

Expert tip

Ensure proper wire termination torque according to Siemens guidelines to maintain breaker performance and safety.

What happens next?

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Frequently asked questions

What is the breaking capacity of the Siemens HEB3B040B circuit breaker?

The Siemens HEB3B040B miniature circuit breaker has a breaking capacity of 10kA. This rating indicates its ability to safely interrupt fault currents up to 10,000 Amperes, providing essential protection against severe electrical faults.