Built for industrial power distribution, the Siemens HHED62B045 is a 45A, 2-pole molded case circuit breaker. It utilizes thermal-magnetic trip technology to protect commercial electrical systems. This ED-frame breaker mounts into Siemens Sentron P1, P2, and P3 panelboards. For future upgrades, Siemens replaces this unit with the 3VA5145-6EC21-0AA0, which needs an adapter kit for older panels. It delivers an extra high interrupting capacity of 65kA at 480VAC and includes load side lugs.
HACR Rated, Reverse Feed, Non-Interchangeable Trip, Extra High Interrupting Capacity
Product FAQs
7 answers
Which panelboards are compatible with the HHED62B045 circuit breaker?
This ED-frame breaker is designed for bolt-on installation in Siemens Sentron P1, P2, and P3 panelboards, as well as compatible Siemens switchboards and enclosures.
Can the HHED62B045 be used to upgrade standard ED4 or ED6 breakers?
Yes. Because it shares the standard ED-frame footprint, the HHED62B045 can replace ED4, ED6, HED4, or HED6 breakers in applications that require an extra-high interrupting capacity.
What does the HH prefix in the HHED62B045 catalog number mean?
The HH indicates that this is an extra-high interrupting capacity breaker. It is rated to safely clear faults up to 65kA at 480VAC and 100kA at 240VAC, which is significantly higher than standard ED-frame models.
Does the HHED62B045 support direct current (DC) systems?
Yes, this breaker is rated for DC applications up to 250VDC, providing an interrupting capacity of 30kA at that voltage.
What wire sizes are accepted by the terminals on the HHED62B045?
The breaker's standard lugs are designed to accept either copper (Cu) or aluminum (Al) wire ranging from 10 AWG to 1/0 AWG.
Are the trip settings on the HHED62B045 adjustable?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time (overload) and instantaneous (short-circuit) trip functions are factory-set and non-adjustable.
What type of circuit protection does the HHED62B045 provide?
It utilizes a thermal-magnetic trip mechanism to provide two-part protection: a thermal element for sustained overloads (Long-Time) and a magnetic element for immediate short-circuit faults (Instantaneous).
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