Tronic Time Delay Auxiliary Contact, 10A 660V AC, 0.1–30 Sec On-Delay

Our review

This Tronic auxiliary contact is a front-mount on-delay timer block, the kind that clips onto a contactor to hold a switching action back by a set interval. The adjustable range runs from 0.1 seconds up to 30 seconds, so it covers short sequencing pauses as well as longer start-up delays. It is rated 10A at 660V AC with 690V insulation voltage to IEC 60947-5-1, and the black plastic body measures 80mm by 50mm. It suits panel builders, electricians and maintenance teams adding timed control to motor or lighting circuits. Before buying, confirm your contactor accepts a front-mount block, that your coil and load voltages fall within the ratings, and whether you need on-delay or off-delay, since the two behave differently. Compare against separate timer relays, which offer wider ranges and multiple modes but take up DIN rail space and extra wiring. Available on Sokonia.