Skutt's 25 Amp Relay is for All Newer Or Upgraded KM Kilns (Not PK Kilns). It is suggested that you use the relay that originally came with your kiln. In May 2004 Skutt changed their relay supplier from Deltrol (clear case) to Potter Brumfield relays (Solid black) on most KilnMaster (KM) and GlassMaster (GM) Models.
For more information on choosing the right relay for you, click here.
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