Schneider ZB2BE101 Push Button

Schneider ZB2BE101 Push Button Contact Block (Harmony 22mm, 1NO)

 

 

The Schneider ZB2BE101 is a 22mm push button contact block (1 NO) used in Harmony XB2 / XB4 / XB5 modular pushbutton systems. It is the electrical switching part that mounts behind a pushbutton head.

Product Information

• Brand: Schneider Electric
• Series: Harmony (ZB2 / XB2 system)
• Model: ZB2BE101
• Type: Add-on contact block (pushbutton switch contact)
• Contact type: 1 NO (1 Normally Open)
• Function: Momentary switching contact for control circuits
• Mounting size: 22mm panel mounting system
• Connection: Screw clamp terminals
• Operation: Snap-action / momentary

What it actually is

This is NOT a full push button by itself.

It is only the electrical contact unit, meaning:

• It must be attached to a pushbutton head (button cap)
• It converts mechanical pressing into an electrical ON/OFF signal
• It is used in control circuits (PLC inputs, relays, contactors)

System Role (Simple)

Operator presses button
→ Pushbutton head (cap)
→ ZB2BE101 contact block (this part)
→ Electrical signal ON/OFF
→ PLC / relay / contactor control

Key Features

• 1 Normally Open (1NO) contact
• 22mm modular pushbutton system
• Snap-on installation behind operator head
• Screw terminal wiring
• Industrial control circuit switching
• Compatible with XB2/XB4/XB5 Harmony series systems

Typical Applications

• PLC input buttons
• Machine start/stop control
• Motor control circuits
• Control panels and operator stations
• Industrial automation systems
• Signal switching in MCC panels

Advantages

• Very compact modular design
• Easy replacement without rewiring full system
• High reliability mechanical switching
• Compatible with wide Harmony pushbutton range
• Standard industrial 22mm mounting system

Important Notes

• Not a PLC ❌
• Not a relay module ❌
• Not a standalone push button ❌
• It is a contact block (electrical switching part of a push button system) ✔
• Must be used with a compatible pushbutton head

Precautions

• Ensure correct matching with operator head (NO/NC configuration)
• Do not exceed rated switching current
• Proper mounting is required for safe contact operation
• Avoid dust/moisture during installation
• Replace contact block if wear causes poor switching response