Question about Connecticut Electric 40 Amp 2 Pole Circuit Breaker
On the compressor or in the manual it should say the Full Load Current or Full Line Current (FLC). I would go by that to size your switch.
They make motor rated toggle switches which look the same as a light switch. You would need a *blank* amp motor rated 2 pole toggle switch it should have 2 screws on each side excluding the ground. The left side screws should have one circuit on them and the right side should have the other circuit on them. Mount this in a metal box with a "RS switch cover" for inside installs or a "Bell" or ferrous box for outside with a weatherproof switch cover. Make sure you buy a big enough box to fit the switch and room to bend the wires. Also are you planning on just cutting a cord and running to the switch or hard wiring? Make sure to get appropriate connectors and if it is exposed to possible damage consider using flexible mettalic conduit.
FYI in most cases a switch can not be oversized it can be undersized however.
Feel free to write back if this is unclear.
Posted on Mar 31, 2009
NO U SHOULD NOT USE THE 30 AMP. SW, THE SW SHOULD BE THE SAME SIZE AS THE PROTECTION AT THE PNL! AND THEY SHOULD BOTH BE THE SIZE THAT IS STATED ON THE NAME PLATE ON YOUR COMPRESSOR, U CAN USE A 220 VOLT SINGLE PHASE NONE FUSED 60 AMP INDOOR OR OUTDOOR TYPE DISCONNECT FOUND AT ANY ELECTRICAL SUPPLY HOUSE, AROUND $20-30 IF I HAVENT BEEN UNDER AROCK FOR LONG! THIS BY THE WAY IS NOT TO BE MOVABLE, SWITCH NEEDS TO BE MOUNTED TO SOMETHING LIKE A WALL OR COLUMN. GOOD LUCK AND BE CAREFUL WITH THE JUICE!
Posted on Feb 26, 2009
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Posted on Jan 02, 2017
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