Siemens EH3B020 is a 20 Amp, 3-pole molded-case circuit breaker from the EH series, rated for 480V AC three‑phase power. It uses a thermal‑magnetic trip with distinct long‑time and instantaneous trip functions and is designed for bolt‑on mounting in compatible Siemens/ITE panels. The unit provides an interrupting capacity of 14 kA at 480V and includes load‑side lug terminals for straightforward wiring. Part of an older EH series, the EH3B020 is now considered obsolete, though distributors still stock this model to support legacy installations.
