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Watlow solid state power switching devices complement the rapid switching required by PID temperature controllers and help deliver optimum system performance and service life. They are available in 1-phase and 3-phase/2-leg and 3-leg configurations, feature touch-safe terminations, input indicators, zero-cross, random or phase-angle fire options, ratings from 18 to 1,000 amperes and agency approvals including CE and UL® 508. Various configurations offer short circuit current ratings (SCCR) of 200,000 amperes, extensive system and heater diagnostic capabilities, heater bake out, integrated heat sinks, on-board fuses, RoHS compliance and serial communications. Watlow DIN-A-MITE® and E-SAFE II power switching devices provide convenient DIN-rail mount packages and are a good replacement for mercury displacement relays. Additionally the EZ-ZONE ST offers an integrated temperature and process controller with optional over- and under-temperature limit and safety shutdown contactor.

Product Max Output Output Firing Phase Configurations Agency Approvals
EZ-ZONE® ST 75A Zero Cross, Phase Angle 1 UL®, CSA, CE, RoHS, W.E.E.E.
DIN-A-MITE® A 18A Zero Cross 1 UL®, C-UL®, CE
DIN-A-MITE® B 25A Zero Cross 1 UL®, C-UL®, CE
DIN-A-MITE® C 65A Zero Cross, Phase Angle 1 or 3 UL®, C-UL®, CE
DIN-A-MITE® D 100A Zero Cross 1 UL®, C-UL®, CE
POWER SERIES™ 225A Zero Cross, Phase Angle 1 or 3 UL®, C-UL®, CE
QPAC 1000A Zero Cross, Phase Angle 1 or 3 UL®, C-UL®
E-SAFE® II 35A Zero Cross 1 UL®, C-UL®, CE, W.E.E.E.
SERIES CZR 50A Zero Cross 1 UL®, CSA, CE
Solid State Relays (SSR) 75A Zero Cross 1 UL®, CSA