Built for commercial and industrial applications, the Siemens ED21B020 is a 1-pole, 20A molded case circuit breaker from the Sentron ED2 family. It provides thermal-magnetic protection for branch circuits. This bolt-on MCCB installs into Siemens P2, P3, and Sentron panelboards, as well as compatible switchboards. It features load side lugs and accepts 14-10 AWG copper or 12-10 AWG aluminum wiring. Rated for 10kAIC at 120VAC, the unit includes fixed long-time and instantaneous trip functions.
Which panelboards accept the ED21B020 circuit breaker?
This bolt-on MCCB is designed for use with Siemens P2 and P3 panelboards, Sentron panelboards, and compatible Siemens switchboards.
Does the Siemens ED21B020 replace older I-T-E breakers?
Yes. Siemens manufactures the Sentron ED frame, and the ED21B020 serves as a direct replacement for legacy I-T-E circuit breakers sharing the exact same catalog number.
Can the ED21B020 be used in DC circuits?
Yes, this breaker is rated for 125VDC applications and provides an interrupting capacity of 5kAIC at that voltage.
Are the trip settings adjustable on the ED21B020?
No, this breaker features a thermal magnetic trip unit with fixed long-time and fixed instantaneous trip functions.
Is the ED21B020 suitable for reverse feed installations?
Yes, this Sentron ED2 frame breaker is approved for reverse feed applications.
Is the ED21B020 HACR rated?
Yes, this breaker carries an HACR rating, making it approved for use with heating, air conditioning, and refrigeration equipment.
Does this breaker carry an SWD rating?
Yes, the ED21B020 is Switching Duty (SWD) rated, meaning it is approved for regularly switching 120VAC fluorescent lighting loads.
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Reviews
Review summary
Customers rate this product 4.0 out of 5 based on 1 review.
Needed to replace a breaker feeding an AC unit in order to pass inspection. Breaker shipped in time and in great condition. We met our deadline resulting in a green tag (sigh of relief).