ABB 1SAX221001R1102 | EF45-45 Electronic Overload Relay, 15-45A

ABB EF45-45 electronic overload relay - 15 to 45 A

ABB 1SAX221001R1102 is the ABB EF45-45 EF electronic overload relay for accurate motor overload protection in low-voltage motor control panels. The ABB part number 1SAX221001R1102 covers a current setting range of 15 to 45 A, making it a precise choice for contactor feeders, pump panels, fan starters, compressor panels, conveyor controls, HVAC motor circuits and factory maintenance spare parts.

The ABB EF series is often searched as an ABB thermal overload relay because it performs the same motor-protection role as a thermal overload while using electronic sensing for a wider setting range, high accuracy and stable protection behavior. For engineers replacing or specifying 1SAX221001R1102, the key identifiers are ABB EF45-45, SKU 1SAX221001R1102 and current range 15 to 45 A.

The EF45-45 is a self-supplied electronic overload relay, which means no extra external supply is needed. It offers reliable and fast protection for motors in the event of overload or phase failure. Easy to use like a thermal overload relay and compatible with standard motor applications, the electronic overload relay is convincing, above all, due to its wide setting range, high accuracy, high operational temperature range and the possibility to select a trip class (10E, 20E, 30E). Further features are the temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP- and Test function and a trip indication. The overload relays are connected directly to the contactors. Single mounting kits are available as accessory. The EF19 and EF45 have ATEX and IECEx certification

Why choose ABB 1SAX221001R1102

• Exact procurement reference: 1SAX221001R1102 / ABB EF45-45.
• Adjustable current setting range: 15 to 45 A.
• Selectable trip class 10E, 20E and 30E for different motor-starting conditions.
• Designed for professional motor protection in panel building, maintenance, HVAC and water-pump control applications.
• Relevant alternative searches include ABB overload relay, ABB thermal overload relay, electronic overload relay and motor protection relay.

Technical specifications

Order ABB 1SAX221001R1102 / EF45-45 from Spark for clear part-number matching, structured product data and suitable overload relay alternatives from Schneider Electric, Siemens, Himel and Hyundai where available.