Engineered for commercial use, the Siemens E23B030 is a 30A, 3-pole molded case circuit breaker from the legacy E2 frame family. It provides thermal-magnetic protection for 240VAC systems. Featuring a bolt-on design, it installs into Siemens P2 and P3 panelboards, plus older ITE enclosures. For modern upgrades, this unit is replaced by the ED23B030. Rated at 10kAIC, it includes fixed trip settings, HACR certification, and accepts 10-1/0 AWG wiring.
CSA C22.2 No. 5, HACR Rated, IEC 60947-2, NEMA AB 1, UL 489
Approval
CSA, UL
Temp Rating
40C
Construction Features
HACR Rated, Reverse Feed, Common Trip, Trip-Free Mechanism
Product FAQs
5 answers
Which panelboards accept the Siemens E23B030 circuit breaker?
This bolt-on molded case circuit breaker is designed for installation in Siemens P2 and P3 panelboards, as well as legacy ITE panelboards.
What is the modern replacement for the legacy E23B030 breaker?
The E23B030 is a discontinued E-frame breaker. For modern panel upgrades, it is typically replaced by the Siemens ED23B030 ED-frame breaker or the newer 3VA series, depending on your specific enclosure requirements.
What are the wire gauge requirements for the E23B030 terminals?
The factory-installed load side lugs are rated to accept either copper or aluminum conductors ranging from 10 AWG up to 1/0 AWG.
Are the trip settings adjustable on the E23B030?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time and instantaneous (LI) trip functions are factory set and non-interchangeable.
Is the E23B030 rated for use on 480V or 600V systems?
No, this E-frame breaker is strictly rated for a maximum of 240V AC. It provides a standard interrupting capacity of 10kA at 240V and cannot be safely installed in higher voltage applications.
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