230 Volt Wiring Color Code
120vac wiring wire volt 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
120vac color code Electrical, heating and control products: meltric decontactors voltage
120vac Color Code
Electrical, Heating and Control Products: Meltric deContactors Voltage
wiring - Red for +ve, black for 0v,which colour for -ve rail