Providing reliable power distribution, the Siemens ED21B025 is a 1-pole, 25A molded case circuit breaker. It belongs to the Sentron ED2 family, offering fixed long-time and instantaneous trip functions for commercial facilities. This unit mounts into Siemens P1, P2, P3, and Sentron panelboards via a secure bolt-on connection. It includes factory-installed load side lugs. With an interrupting rating of 10kAIC at 120VAC, it safely clears electrical faults and is HACR rated for HVAC applications.
Can the Siemens ED21B025 replace an older ITE or Gould 25A breaker?
Yes. Siemens acquired ITE and Gould's electrical divisions, maintaining the original ED frame design. The Siemens ED21B025 is a direct, code-compliant drop-in replacement for obsolete ITE or Gould ED21B025 circuit breakers.
Which panelboards accept the ED21B025 circuit breaker?
As a bolt-on ED frame breaker, it installs directly into the bus of Siemens P1, P2, and P3 panelboards, along with legacy Sentron panelboards and switchboards. It is not compatible with standard plug-on load centers.
How does the ED21B025 connect to the panel and load?
The line side features a bolt-on connection that mounts directly to the panelboard bus. The load side includes factory-installed lugs that accept 14-10 AWG copper or 12-10 AWG aluminum conductors.
Is the ED21B025 circuit breaker HACR rated?
Yes, this 25-amp ED frame breaker is HACR rated, meaning it is tested and approved for use with heating, air conditioning, and refrigeration equipment.
Are the trip settings adjustable on the ED21B025?
No, this breaker features a fixed thermal-magnetic trip unit. Both the long-time and instantaneous trip functions are factory-set and non-interchangeable.
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