Schneider Electric · Harmony XB4 Série

ZB4-BW343

Ativo
UL CSA CE

Harmony XB4 Illuminated Red Push Button 24V LED

Número de peça: ZB4 - B - W - 3 - 43
Schneider Electric Harmony XB4 Série Introduced circa 2003
Schneider Electric ZB4-BW343 — Harmony XB4 Illuminated Red Push Button 24V LED

Illuminated red flush push button with integrated 24V LED for Schneider Harmony XB4 series. 22mm cutout, IP66 rated. Visual confirmation of stop/fault state.

Aplicações comuns

Illuminated red push button that lights up to confirm the machine is stopped or a fault is present. The red LED provides clear visual status — lit means the stop circuit is active or an alarm condition exists. Common on packaging lines, conveyor systems, and CNC machine auxiliary panels where operators need immediate confirmation that the stop command was received. Pairs with the green illuminated ZB4-BW333 for a matched start/stop set. Uses a 1NC contact with ZB4-BZ102 block, so the circuit breaks on press — standard fail-safe wiring for stop functions.

Especificações

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE
Color
Red
Contact Configuration
1NC (with ZB4-BZ102)
Cutout Diameter
22mm
Illuminated
Yes
IP Rating
IP66
LED Color
Red
LED Voltage
24V AC/DC
Material
Metal
Mechanical Life
10,000,000 cycles
Mounting Type
Panel
Max Operating Temp
70°C
Min Operating Temp
-25°C

Especificações com este ícone estão vinculadas à página fonte original do fabricante

Você também vai precisar de

Este é um componente modular. Para uma montagem completa, você também pode precisar de:

Alternativas compatíveis

Estes produtos são referências cruzadas funcionalmente equivalentes de outros fabricantes.

Referência rápida de instalação

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.

Dimensões

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

Diagrama de fiação

L T 21 22 NC (closed) opens on press

Solução 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.

Especificações rápidas

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

O que os usuários dizem

+

“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 29 votos positivos Ver tópico →

Fontes de dados

Especificações e dados de produto obtidos das seguintes referências.

ZB4BW343 Product Page

https://www.se.com/us/en/product/ZB4BW343/

Acessado em April 04, 2026

Fonte