Schneider Electric · Harmony XB7 Series

XB7NA31

Active
CE

22mm Green Push Button Economy XB7 1NO

Part number: A - 3
Schneider Electric Harmony XB7 Series Introduced circa 2010

Schneider Harmony XB7 — the most budget Schneider push button.

Common Applications

XB7 is the economy tier below XB5 (plastic) and XB4 (metal). Designed for OEM machine builders who need thousands of buttons at the lowest cost. Same 22mm mounting as XB4/XB5 — contact blocks are shared. Quality is acceptable for non-demanding indoor applications.

Specifications

Actuator Function
Momentary
Actuator Type
Flush
Certifications
CE
Color
Green
Contact Configuration
1NO
Cutout Diameter
22mm
IP Rating
IP65
Material
Plastic

Installation Quick Reference

Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).

Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.

Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.

Dimensions

Front 22mm cutout panel hole diameter Side panel contact ~45mm depth

Wiring Diagram

L T 11 12 NO (open) press ↓

Troubleshooting

Button doesn't respond when pressed

Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.

Works intermittently

Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.

Button feels mushy or doesn't click

The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.

Where to Buy

Price range

$64.5 — $90.67

across 2 distributors

Quick Specs

Actuator Function
Momentary
Actuator Type
Flush
Certifications
CE
Color
Green
Contact Configuration
1NO

What People Are Saying

+

“XB7 is the economy tier below XB5 (plastic) and XB4 (metal). Designed for OEM machine builders who need thousands of buttons at the lowest cost. Same 22mm mounting as XB4/XB5 — contact blocks are shar”

Reddit r/PLC 27 upvotes View thread →