Schneider Electric K50F003UP Harmony K K50 3-Pole 50A Cam Changeover Switch

The Schneider Electric K50F003UP is a Harmony K front-mounted cam changeover switch rated 50 A, built for 3-pole 0-1-2 position control at up to 690 V insulation voltage. Its 64 x 64 mm front plate mounts with 4 holes, and the black rotary handle switches between 0° and 60° on the right or 0° and 300° on the left, with a metallic 1-0-2 legend marking each position.

Technical Specifications

Certifications & Standards

• cULus
• IEC 60947-3

Selection Notes

The off position gives a true 3-pole isolating function between the two switching positions, which sets a changeover cam switch apart from a simple selector: with Off at the center of the 1-0-2 sequence, the load is fully disconnected before the operator reverses direction or switches source. The 5000 A short-circuit rating, backed by a 63 A gG fuse ahead of it, lets it sit directly on a feeder without a separate isolator. The 690 V insulation rating and Class II overvoltage category are why this frame suits panels built to a higher insulation margin than a standard 400 V motor circuit needs. Front mounting with a 64 x 64 mm plate and 4-hole fixing keeps the footprint compact on a control panel door.