Built for demanding industrial environments, the Siemens HEG3B030L offers dependable overcurrent defense. This 3-pole, 30A MCCB utilizes a thermal-magnetic trip mechanism with fixed long-time and instantaneous (LI) functions. It is engineered to fit Siemens P4 and P5 panelboards, switchboards, and enclosures. Delivering a 65 kAIC rating at 480VAC, this Sentron VL Series breaker includes 3TA1EG10 lugs. For new installations, Siemens has replaced this model with the 3VA5130-6ED36-0AA0.
HACR Rated, High Interrupting Capacity, Reverse Feed, Quick-Make/Quick-Break, Trip-Free Mechanism
Product FAQs
8 answers
What equipment is the Siemens HEG3B030L compatible with?
This 3-pole breaker is designed for installation in Siemens P4 and P5 panelboards, switchboards, motor control centers, and compatible industrial enclosures.
How does the HEG3B030L mount into a panel?
It utilizes a unit mount, feed-thru connection type rather than a plug-in design, making it suitable for hardwired panelboard and switchboard configurations.
What wire gauge and material can be used with the HEG3B030L terminals?
The factory-installed lugs accommodate 14 AWG to 1/0 AWG copper (Cu) or aluminum (Al) conductors.
How does the interrupting capacity of this breaker scale with voltage?
The maximum interrupting rating is 100kAIC when used on a 240VAC system. The rating decreases at higher voltages, offering 65kAIC at 480VAC and 25kAIC at 600VAC or 347VAC.
Can the HEG3B030L be used in DC applications?
Yes, in addition to its standard AC ratings, this breaker is rated for 30kAIC at both 250VDC and 500VDC.
Are the trip settings on the HEG3B030L adjustable?
No, this breaker features a thermal magnetic trip unit with fixed thermal and fixed magnetic settings for long-time and instantaneous (LI) protection.
What product family does the HEG3B030L belong to?
This breaker is part of the Siemens Sentron family and is categorized under the VL Frames group.
Is the Siemens HEG3B030L UL listed?
Yes, it is a UL listed molded case circuit breaker designed for reliable circuit protection in commercial and industrial environments.
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