ZB4-BJ2
Active22mm 2-Position Selector Spring Return
Schneider Harmony XB4 2-position selector with spring return to right.
Common Applications
Spring-return selector for momentary functions. Turn left and release — springs back to right. Used for momentary jog, test pulse, or single-cycle activation. The spring return prevents leaving the machine in an unintended mode.
Specifications
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Spring return
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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UL, CSA, CE
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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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22mm
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IP Rating
IP66: Dust-tight and withstands powerful water jets from any direction. Standard for outdoor and washdown applications.
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IP66
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Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
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Metal
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Installation Quick Reference
Panel cutout: 22mm. Align the selector positions with the desired panel markings before tightening.
Contact blocks: Attach one contact block per position. Wire each to a separate PLC input for position feedback. A 2-position switch needs 1-2 blocks; 3-position needs 2-3.
Dimensions
Troubleshooting
Not responding to input
Check wiring continuity with a multimeter. Verify the contact block is properly seated. Inspect terminals for loose connections.
Where to Buy
Price range
$34.92 — $76.87
across 2 distributors
Quick Specs
- Actuator Function
- Spring return
- Certifications
- UL, CSA, CE
- Cutout Diameter
- 22mm
- IP Rating
- IP66
- Material
- Metal
What People Are Saying
“Spring-return selector for momentary functions. Turn left and release — springs back to right. Used for momentary jog, test pulse, or single-cycle activation. The spring return prevents leaving the ma”