URGeNT wiring the disconnect to 3000 watt water heater

[Pyro71]

Hi, I'm replacing oil water heater with 3000 watt electric. square d main panel. bi pole 20 amp breaker. 12/2 wire to a eaton dp221ngb 30 amp disconnect. I have 118v on both conductors going in disconnect but no power coming out. two 15amp glass type p fuses are in the disconnect. Why is there no power on the out? fuses tested good. Thx

 

[Pyro71]

Hi, I'm replacing oil water heater with 3000 watt electric. square d main panel. bi pole 20 amp breaker. 12/2 wire to a eaton dp221ngb 30 amp disconnect. I have 118v on both conductors going in disconnect but no power coming out. two 15amp glass type p fuses are in the disconnect. Why is there no power on the out? fuses tested good. Thx

Tank is 240v

 

[Pyro71]

Tank is 240v

Tank is 240v

I bypassed the disconnect and have hot water. Im still curious what was up with the disconnect though.