Single-pole/ or 3-way switches/ rated 30 amp/ safe max 24 amp
Buy:
30
amp 3-way switch
Other
type switches
30
amp 2-pole
30
amp industrial
Leviton
3033
30
amp motor switch
40
amp DP motor
30 amp DPDT
|
See
larger
 Toggle car charger using 30 amp
3-way switch:
Buy:
30
amp 3-way switch
Car
charge station
Incoming 240 volt line from breaker has 2 hot wires.... one hot wire
(white wire) runs to both
the charge station and the water heater ... connect the second hot wire
(black wire) to the common terminal or different-colored screw on 3 way
switch.
Second wire to water heater connects to one of the other screws, and
second wire to charge station connects to remaining screw.
Generally best to hook wire around screw terminal, or at least get
a bend on it, so it is less likely to pull loose. Insert wire on left
side of screw so tightening screw pulls wire in, and doesn't push wire
out. Tighten screw very tight using correct size screwdriver.
Undersized screwdriver can cause a loose connection.
All
connections must be made inside electrically-rated enclosure (box) that
is make to fit a switch. Enclosure must have a cover installed. Metal
enclosure must be grounded, plastic box does not need ground. All
devices and loads must be grounded. Wires, cables, boxes must be
attached to structure. Buy:
Deep
switch box
Note all switches have a volt and amp rating embossed in the metal or
plastic part of switch.
Single-pole and 3-way 30 amp switches are rated 120-277 volt.
So these 30 amp switches work with 120, 208, 240, 277 volt.
All double-pole switches are rated 240 volt, including 30 amp double
pole. This mean it can be used on 120-208-240 volt.
30 amp switches can be used on 15-20-30 amp circuit, but not 40-50 amp
circuit.
Builder grade 15 amp switches that are rated 120 volt can only
be used for 120 volt. Not for 240 or other voltage.
15 amp switches can be used on 15 or 20 amp circuit, but cannot control
30 amp load. |
Metal enclosure must be grounded. The
Intermatic enclosures shown have built in ground connection (seen
inside box at bottom)
