ABB TF42-0.23 Thermal Overload Relay TF42-0.23

ABB TF42-0.23 Thermal Overload Relay is a compact, three‑pole protection device designed for the main motor circuit in low‑voltage starting panels, typically paired with ABB TF42‑series contactors. It is set for a nominal full‑load current of 0.23 A (TF42‑0.23) with a setting range of 0.17–0.23 A, enabling precise overload protection for small to mid‑sized motors. The relay includes an auxiliary contact (1 NO, 1 NC) rated up to 3 A at 120 VAC for signaling in control circuits, and it supports Type 2 short‑circuit protection with a short‑circuit current rating up to 18 kA SCCR for circuits up to 480/600 VAC. DIN‑rail mounting and a compact footprint ensure easy integration into standard electrical panels, with roughly 1.77 in wide by 2.78 in deep by 3.48 in high dimensions. Its operating environment is rated from −25 to 60 C, suitable for common workshop conditions.