Applies to ordinary residential non-simultaneous water heater rated up to 5500 watts
Figure volts amps watts for water heater
|
|
Turn
water heater ON-OFF with 30 amp switch Applies to ordinary residential non-simultaneous water heater rated up to 5500 watts Figure volts amps watts for water heater |
30 amp switches Single-pole/ 2-pole on-off switches Buy: 30 amp 2-pole switch 30 amp industrial grade Leviton 3033 switch 30 amp 3-way switch | 30 amp Motor start switch Heavy duty double-pole switches to turn off both hot wires in 240 volt circuit Buy 2 pole: 30 amp motor switch 40 amp motor switch Buy: 3-pole 40 amp switch | 30 amp DPDT Buy: 30 amp DPDT switch 30 amp double pole switch Resource: Use this switch to toggle water heater between 120-240 volt |
 Basic water heater circuit |
 |
 See
larger240V water heater can be controlled directly with a 30-amp single-pole switch Look for green colored 30 amp switch/ rated 25 amps Turning off one hot wire to 208-240V single phase water heater will work. Internal thermostat wiring inside water heater also turns off one hot wire. Buy: Cooper 3032 switch at Amazon Leviton 3032 30 amp switch at Amazon Leviton 30 amp switch at Amazon 30 amp switches at Amazon Buy Wire: Orange/ 30 amp #10 gauge for water heater 25 foot 10-2 NMB indoor with ground 100 foot 10-2 NMB indoor with ground 30 amp switch/ maximum 25 amps 5500 Watt elements draw 23 Amps 4500 Watt elements draw 19 Amps Resource: Figure volts amps watts for water heater Read label on water heater How to wire thermostats |
|
 Another image 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. Always use wiring diagram that comes with device. Advantage of double pole: A double-pole switch acts as a 'safety switch' to ensure power is completely off when working on water heater. Safety switch or power cut off is required for HVAC, or tankless electric heater when breaker box is not within sight. Commercial water heater installations usually require safety switch. 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-fusable safety switch/ power cut-off Resource: Twisting wires wire connector basics |
|
 See larger 240V water heater can be controlled directly using two 30-amp switches Illustration for 30-amp 3-way circuit Note: 240V circuit has 2 hot wires <> putting a switch on 1 hot wire will work Buy: Leviton 3033-2 3-way switch at Amazon Leviton 3-way 30 amp switch Pass and Seymour 30 amp 3-way switch Safety switches Siemens 2-pole fusable safety switch 30 amp Schneider 30 amp non-fusable safety switch/ power cut-off Rated 25 amps, max 5500 watt water heater 5500 Watt elements draw 23 Amps 4500 Watt elements draw 19 Amps Resource: Figure volts amps watts for water heater Read label on water heater |
|
 For
certainty, always Test switch terminals using continuity tester
before wiring.24 amp safe maximum Practical wiring diagram Wire diagram''/ Toggle water heater between 120Volt and 240Volt Max 4500 watt non-simultaneous water heater Use 240Volt during times when electric prices are lower, and faster recovery is needed. Use 120Volt during peak prices when less hot water is used Bring 120Volt from nearby outlet that has 12 gauge wire, or install lower watt elements if wire is only 14 gauge. Using 30 amp Double Pole Double Throw switch Ordinary 3-way switch will do same job, but without center off Also called: 30 amp 2 pole DPDT switch Buy double-pole double throw 30 amp 2 DPDT switch with center off at Amazon Connect 120Volt wires as Hot and Neutral. Black connects to 120Volt circuit breaker and White connects to neutral busbar. Connect 240Volt wires as Hot1 and Hot2. Both wires connect to 240Volt breaker. Resource: How to wire water heater for 120 volts Select correct wire and breaker Figure volts amps watts for water heater See inside main breaker box Two water heaters How to control motor with two switches 30 amp maximum current/ safe limit 80% = 24 amps Over-amped switch will feel warm/ hot How to control water heater with ordinary switches |
|
 30-Amp
120-240-volt Two-Pole Indoor Safety Switch with
Neutral/ fusableUse fusable or non-fusable safety switch. When using fusable, select same amp rating as load. Non-fusable, do not use less than amp-rating of Load, but you can install 60 amp non-fusable on 30 amp Load. Safety switch operates same as ordinary on-off switch: up for ON, down for OFF. Single-pole only. Not available for 3-way operations. Having more than one fuse, or circuit breaker, on same line is ok by code and will not affect load, wires, or cause problems.  Buy: Siemens 2-pole fusable safety switch 30 amp Schneider 30 amp non-fusable safety switch Square D safety switches 2 pole 60 amp non-fusable / outdoor box Safety switches at Amazon Safety switches for power tools Resources How to wire safety switch Match breaker and wire size Mixing valves |
|
|
Control
water heater with wall timer and 30 amp switch Resources: See materials list and wiring  |
|
 Switch
maximum rating is 25 Amps Check specs when buying switchCheck water heater label on side of tank for Volts and Watts 5500 Watt water heater ÷ 240 Volts = 22.91 Amps or 23 Amps 4500 Watt water heater ÷ 240 Volts = 18.75 Amps 3500 Watt water heater ÷ 240 Volts = 14.5 Amps 1500 Watt water heater ÷ 120 Volts = 12.5 Amps Figure volts amps watts for your water heater How much does it cost to run water heater |
|
  |
Safety Always use cover plate over switch Attach wire to solid structure using cable staples Attach wire or conduit firmly to water heater |
 Buy: Dishwashers at Amazon |
How
to toggle between dishwasher and under counter water heater Same wiring for
either 120 or 240 volt loads
Objective 1: Either the dishwasher has power or the under-counter water heater has power. But neither at same time. Objective 2: inexpensive, reliable solution that doesn't require much space and is simple to wire, simple to program and handles job with no chance for error. How to wire: Incoming wire from breaker has 2 wires. If voltage is 120, then the white Neutral wire is never switched on-off. Connect white Neutral wire to each appliance. Black Hot wire is switched on-off. Connect Hot wire to COM terminal on the 3-way switch (dark or different color screw). Then run a Hot wire to each appliance from the other two screws on switched.  For heavier amp loads, or 240 volt ...Buy: Leviton 3033 switch at Amazon 30 amp 3-way switch |
 Larger image |
120Volt
and 240Volt breakers Image shows 120Volt line and 240volt line. Resources: See inside main breaker box Color code and wire sizes Basic 120 volt and 240 volt water heater circuits How to wire 240 volt outlets How to wire 3-phase outlets and timers How to convert 240Volt water heater to 120volts |
 |
Buy
from my affiliate links every time/ thanks: Amazon ''As an Amazon Associate I earn from qualifying purchases'' Enter Amazon from any link on my site, fill cart with any item ... purchases pay small commission E-mail: geno03245w@gmail.com My response might end up in spam folder, check email folders Waterheatertimer on Twitter Message thru facebook |
