Ms402 Grundfos Pump Control Box Wiring Diagram. Control box wiring diagram cb1269c b1274 l1 230 vac three phase wiring connections external 3 phase 230 vac power source circuit breaker red white black l1 l2 l3 green ground g on indicator lamp m a2 a1 43 2 3 4 1 stop float switch start float switch terminal block contactor 5 hp l2 l3 pump motor t1 t2 t3 m ol cb1269 cb1274 power input l1 l2 l3 grn blk h1 h3 h2 h4 50va cpt. I have attached an image of the correct wiring diagram.
Grundfos 1hp 99 max psi vertical multistage centrifugal pump. The engineering mindset 403244 views. Electrical ac dc 3 wire 240v for well pump i have a 220v water well pump submersible this is for.
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A double pole switch is the safest way to make sure that both lines of the 240 volt circuit power to the pump are turned off. Single phase 3 wire submersible pump control box wiring diagram. This website uses cookies to improve your experience. Marine drum switch wiring diagram it is far more helpful as a reference guide if anyone wants to know about the homes electrical system.