The Siemens ED43B020 is a 20-amp, 3-pole, 480Y/277V E-Frame molded case circuit breaker with bolt-on mounting. Part of Siemens' ED4 series, this breaker is designed for commercial and light industrial applications requiring reliable branch circuit protection at 480V. It features thermal-magnetic trip technology with LI protection and a 65kAIC interrupting rating. The ED43B020 is HACR-rated and UL 489 listed, making it suitable for a wide range of commercial electrical panel applications.
| Specification | Value |
|---|---|
| Amperage | 20A |
| Poles | 3 |
| Voltage | 120/240/277/480Y/277VAC |
| Interrupt Rating | 65kA @ 480Y/277V · 25kA @ 240V |
| Frame Size | E-Frame (100A Frame) |
| Mounting Type | Bolt-On |
| Trip Type | Thermal Magnetic |
| Trip Function | LI — Long-Time, Instantaneous |
| Wire Size | 14–6 AWG (Cu/Al) |
| Phase | 3-Phase |
| Standards | UL 489, CSA C22.2 No.5, NEMA AB 1 |
| Temperature Rating | 40°C |
Replaces: ITE ED43B020
Siemens ED4 E-Frame 20A 3-pole circuit breaker. In stock at AllBreakerSales.com. Call (877) 611-0034 for same-day pricing. Genuine OEM parts, ships from US warehouse.
Brand: Siemens | Series: ED4 E-Frame | Catalog Number: ED43B020
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