Smooth glass electric cooktop built into a wooden counter

Generic photo: Max Vakhtbovych · Pexels License

Electric range cord: 3-wire vs 4-wire connection

The cord must match the receptacle: older homes may have a 3-prong 240 V receptacle (neutral and ground shared) while newer installs use 4-prong (separate neutral and ground). The range terminal block has a neutral-to-frame link that stays for 3-wire and is removed (with the green wire to the frame) for 4-wire. Follow the model diagram exactly.

Single source ~30 min moderateBrands: All

Before you start

240 V can kill: unplug the range or turn off the breaker before opening the terminal cover.
Changing the receptacle or circuit is electrical work: licensed electrician where required.
Do not overtighten terminal nuts: the block can crack.

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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