Schneider Electric XB5AD21 Harmony XB5 Plastic Black 2-Position Marked OFF ON 22 mm 1NO Selector Switch

The Schneider Electric XB5AD21 is a Harmony XB5 selector switch with a black standard handle, a maintained (stay-put) 2-position 90° action marked OFF and ON, and a single normally-open (1NO) contact rated 10 A Ith. It mounts in a standard 22.5 mm panel cut-out with screw-clamp terminals.

Technical Specifications

Certifications & Standards

• BV
• UL
• CSA
• DNV
• Lloyd's Register
• IEC 60947-5-1
• IEC 60947-1

Selection Notes

The maintained (stay-put) action holds whichever position the operator last selected, unlike a spring-return push button, which suits a state that must persist until deliberately changed, such as enabling or isolating a function. The OFF/ON legend removes any ambiguity about which position corresponds to which contact state, important where the switch controls a mode that is not otherwise visible on the machine. The single 1NO contact closes in the ON position and switches directly into a PLC input within its 3 A/240 V AC-15 rating.