Schneider Electric · Harmony XB4 Serie

ZB4-BL3

Attivo
UL CSA CE

22mm Green Extended Push Button

Codice articolo: ZB4 - B - L - 3
Schneider Electric Harmony XB4 Serie Introduced circa 2003

Schneider Harmony XB4 green extended round push button.

Applicazioni Comuni

Extended (protruding) button for easy access. Used where operators need to press without looking — conveyor start stations positioned at arm height, machine tool cycle start. The raised profile makes it findable by touch.

Specifiche

Actuator Function
Momentary
Actuator Shape
Round
Actuator Type
Extended
Certifications
UL, CSA, CE
Color
Green
Cutout Diameter
22mm
IP Rating
IP66
Material
Metal

Guida Rapida all'Installazione

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.

Dimensioni

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

Risoluzione dei Problemi

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.

Specifiche Rapide

Actuator Function
Momentary
Actuator Shape
Round
Actuator Type
Extended
Certifications
UL, CSA, CE
Color
Green

Cosa Dicono gli Utenti

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“Schneider Electric ZB4-BL3 is a solid choice for push button applications. Standard specs, well-supported.”

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