230 Volt Wiring Color Code
Electrical, heating and control products: meltric decontactors voltage 120vac color code 120vac wiring wire volt
120vac Color Code
Color electrical control coding voltage volts heating meltric hz Electrical wiring colour codes red which color colours ve dc rail 0v power electronics wikipedia info article here stack
120vac Color Code
Electrical, Heating and Control Products: Meltric deContactors Voltage
wiring - Red for +ve, black for 0v,which colour for -ve rail