Engineered for commercial applications, the Siemens ED63B070 is a 3-pole, 70A molded case circuit breaker from the Sentron family. This ED frame breaker features a bolt-on mounting style designed to install into Siemens P1, P2, and P3 panelboards and switchboards. Rated for 25 kAIC at 480VAC, it utilizes a fixed thermal-magnetic trip unit with long-time and instantaneous functions. It is HACR rated and reverse feed capable.
What panelboards accept the ED63B070 circuit breaker?
This breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as Siemens switchboards.
What wire sizes do the standard lugs on this breaker accept?
The standard lugs accept 10 AWG to 1/0 AWG copper or aluminum wire.
Does this breaker mount to a DIN rail?
No, the ED63B070 features a bolt-on connection. It mounts directly to the panelboard bus rather than a DIN rail.
Can the ED63B070 be used in DC applications?
Yes, this breaker is rated for up to 250VDC with a 30kA interrupting rating, making it suitable for specific direct current applications.
Are the thermal and magnetic trip settings adjustable on this breaker?
No, the ED63B070 features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip points cannot be changed in the field.
What does the LI trip function indicate on the ED63B070?
The LI designation means the breaker includes Long-Time and Instantaneous trip functions. The long-time function provides thermal overload protection, while the instantaneous function provides magnetic short-circuit protection.
What is the difference between Siemens ED4 and ED6 frame breakers?
The primary difference is the maximum AC voltage rating. ED4 breakers are rated up to 480VAC, while ED6 breakers like the ED63B070 are rated up to 600VAC.
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