Schneider Electric · Harmony XALK Series

XALK178E

Active
UL CSA CE

Harmony XALK 1-Button Green Start Station

Schneider Electric Harmony XALK Series Introduced circa 2003

Schneider Harmony XALK single-button control station — enclosed.

Common Applications

Complete control station: green start button in a sealed IP65 enclosure. Mounts on a wall or machine frame. No panel cutout needed. Pre-wired with cable gland. For remote start stations on conveyor lines, pump stations, and loading docks.

Specifications

Certifications
UL, CSA, CE
Color
Green
Contact Configuration
1NO
IP Rating
IP65
Material
Polycarbonate enclosure
Mounting Type
Surface mount (enclosed)

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

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

$111.32 — $111.86

across 2 distributors

Quick Specs

Certifications
UL, CSA, CE
Color
Green
Contact Configuration
1NO
IP Rating
IP65
Material
Polycarbonate enclosure

What People Are Saying

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“Complete control station: green start button in a sealed IP65 enclosure. Mounts on a wall or machine frame. No panel cutout needed. Pre-wired with cable gland. For remote start stations on conveyor li”

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