Sylvania 100T-CB01 Series A Contact Block Assembly

Sylvania 100T-CB01 Series A Contact Block Assembly is a single normally open auxiliary contact block designed to accompany the 100T line of push-button operators. It adds one Form A (NO) contact to a control circuit, enabling button actuation to signal relays, timers, or PLC inputs without carrying the main load current through the operator itself. The CB01 is the standard N.O. block in the Series A family and is commonly used with other 100T blocks to form multi-contact assemblies; for example, pairing CB01 with a complementary contact block yields configurations such as 100T-CB11 (1 N.O., 1 N.C.). The block is documented in Joslyn Clark/Danaher-era catalogs and continues to appear in distributor listings under the Sylvania/Joslyn Clark 100T push-button system. Typical applications include control stations in motor starters and industrial automation panels, where a mechanical push-button must provide a discrete, isolated contact signal for external logic or relay circuits.