E-T-A ESS20 Electronic Supplementary Protector

The E-T-A ESS20 Electronic Supplementary Protector is a compact, single-pole protection device for 24 VDC circuits, rated at 6 A. Identified by part number 162857, this ESS20 unit is part of E-T-A’s line of electronic protection components designed to augment circuit protection in control and automation applications. Operating at 24 VDC, it monitors current in the protected line and interrupts current when a fault condition is detected, helping to shield wiring, sensors, relays, and other connected devices from damage due to overcurrent events. With a 6 A rating and a one-pole configuration, the ESS20 is suited to small-draw control circuits within industrial electrical installations where space and reliability are important. The device is manufactured by E-T-A, a company known for electrical protection components, and is identified by its 162857 part number for ordering and replacement in service or retrofits. Designed for straightforward integration into 24 VDC control networks, the ESS20 provides dedicated protection while complementing existing overcurrent protection schemes.