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How to wire water heater safety switch |
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240V
water
heater can be controlled directly with a
30-amp double-pole switch Rated 25 amp Turn off both Hot wires. Not necessary, since turning off 1 hot wire works fine. Read above Use diagram that comes with device... my illustration shows house wires connected to bottom two screws, and load wires connected to top two screws... house wires can be connected top two scres, the result is same unless specified by product label. A double pole switch will act as a 'power cut off switch' or 'safety switch' as required by some local codes. Buy double pole 30 amp switches: Leviton 3032-2w double pole 30 amp at Amazon Leviton MS302-DS 30 amp double-pole switch at Amazon 2-pole 30 amp non-fusible safety switch/ power cut-off 30 amp switches at Amazon Resource: Twisting wires wire connector basics |
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| 30 amp switches | 30 amp double-pole | 30 amp DPDT | Ordinary 15-20 amp switches | 15 amp
pilot light switch |
 Single-pole/ 2-pole on-off switches Buy: 30 amp 2-pole switch 30 amp industrial grade |
 Heavy duty double-pole switches to turn off both hot wires in 240 volt circuit Buy: 30 amp motor switch 40 amp motor switch |
 Buy: 30 amp DPDT switch Resource: Use this switch to toggle water heater between 120-240 volt |
 Ordinary 15-20 amp toggle switch Buy: 15 amp switch 20 amp switch |
 Indicator light shows when Load is ON Buy: Pilot light switch Resource: How to wire pilot light switch |
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30-Amp
120-240-volt Two-Pole Indoor Safety Switch with
Neutral/ fusible Buy: 2-pole 30 amp non-fusible safety switch/ indoor / power cut-off 2 pole 60 amp non-fusible / outdoor box/ at Amazon Safety switches at Amazon Safety switches for power tools Resource: How to wire safety switch You can use fusible or non-fusible Having more than one fuse on same line is ok by code |
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Resource: Compare box timers DPDT timers Intermatic Control water heater w/ Z-wave |
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Resource: Programmable timers Countdown timers Off delay timers On delay timers Timer modules Din rail Twin & one-shot Woods Intermatic Tork |
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Recirculation systems |
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