Schneider Electric · Harmony XB4 Serie

ZB4-BA4

Activo
UL CSA CE

Harmony XB4 Red Flush Push Button Head

Número de pieza: ZB4 - B - A - 4
Schneider Electric Harmony XB4 Serie Introduced circa 2003
Schneider Electric ZB4-BA4 — Harmony XB4 Red Flush Push Button Head

Red flush push button head for Schneider Harmony XB4 series. 22mm cutout, IP66 rated. Requires separate contact block (ZB4-BZ102 for 1NC).

Aplicaciones comunes

Standard stop button across industrial control panels. Found on commercial kitchen equipment alongside the green ZB4-BA3 (start), CNC machine tool auxiliary stops, and conveyor emergency halt stations. Red color follows IEC 60204-1 meaning stop or off. The 1NC contact configuration breaks the circuit when pressed — wire it in series with the motor contactor coil so pressing the button kills power to the motor.

Advertencia de falsificación Medium riesgo

Same counterfeit risk as ZB4-BA3. Verify via Schneider QR code authentication.

Compatibilidad

Compatible with all XB4 contact blocks. Fits XB2 legacy mounting holes.

Especificaciones

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE
Color
Red
Contact Configuration
1NC (with ZB4-BZ102)
Cutout Diameter
22mm
IP Rating
IP66
Material
Metal
Mechanical Life
10,000,000 cycles
Mounting Type
Panel
Max Operating Temp
70°C
Min Operating Temp
-25°C

Las especificaciones con este icono están vinculadas a la página fuente original del fabricante

También necesitará

Este es un componente modular. Para un ensamblaje completo, también puede necesitar:

Referencia rápida de instalación

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.

Dimensiones

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

Diagrama de cableado

L T 21 22 NC (closed) opens on press

Solución de problemas

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.

Especificaciones rápidas

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE
Color
Red
Contact Configuration
1NC (with ZB4-BZ102)

Lo que dicen los usuarios

+

“Solid button for panel builds. Schneider Electric Harmony XB4 series is well-proven in the field. Standard 22mm mounting means easy replacement if needed.”

Reddit r/PLC 13 votos positivos Ver hilo →

Fuentes de datos

Especificaciones y datos de producto obtenidos de las siguientes referencias.

ZB4-BA4 via DigiKey

https://www.digikey.com/en/products/detail/schneider-electric/ZB4BA4/1638731

Consultado el March 28, 2026

Fuente

ZB4BA4 Schneider Product Page

https://www.se.com/us/en/product/ZB4BA4/

Consultado el March 30, 2026

Fuente