ABB 1SBN020314R1000 Time Relay TEF5 Off Delay

ABB TEF5-OFF Frontal Electronic Timer, order code 1SBN020314R1000, is a dedicated OFF-delay timing device designed to mount with ABB AX contactors to manage safe, timed de-energization in control circuits. It accepts a rated control circuit voltage of 24–240 V (AC or DC, 50/60 Hz) and provides one normally open and one normally closed auxiliary contact for signaling or interlocking within the controller. The timer delivers a time delay up to 100 seconds across three selectable ranges—0.1–1 s, 1–10 s, and 10–100 s—chosen via an integrated rotary selector, with the timing function operating independently of the main control system. When the coil is de-energized, the output remains energized for the selected delay before dropping, enabling straightforward sequencing without additional logic modules. This OFF-delay variant is part of ABB’s TEF5 family, which also includes an ON-delay version (TEF5-ON) for different timing behavior, and is intended for front-mounting on compatible ABB equipment to realize compact, reliable timing in automation tasks. The unit weighs approximately 0.065 kg per piece, offering a lightweight, plug-in timing solution for motor-control and automation schemes where controlled release or staged shutdown is required without altering existing control wiring.