6x Schneider Electric ZB4BS834 Harmony XB4 Red 30 mm E‑Stop Turn‑to‑Release

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Bundle of six Schneider Electric Harmony XB4 emergency stop heads, model ZB4BS834, red 30 mm mushroom operators for 22 mm panels with trigger latching and turn‑to‑release reset. Mixed lot of new old stock and lightly used units, sold together as shown.​​

Item details

• Brand: Schneider Electric Harmony XB4​

• Model: ZB4BS834​​

• Type: Emergency stop / switching‑off button head (operator only, no contact block)​

• Operator style: Red 30 mm mushroom head, unmarked, trigger action with mechanical latching, turn‑to‑release reset​

• Mounting: Fits standard 22 mm panel cut‑out; metal chromium‑plated bezel​

• Protection ratings: IP66, IP69/IP69K, NEMA 4X and 13 when correctly assembled in Harmony system​

• Standards: Designed to meet EN/IEC 60947‑5‑5, EN/ISO 13850 and related safety standards (see datasheet).​

• Country of manufacture: Czech Republic (per Schneider documentation; check label for confirmation).​

• Compatible with: Harmony XB4 contact block assemblies and XAPK/XALK control stations.​

Condition

• Condition: Mixed new and used; some heads appear unused, others show light signs of prior installation.​

• Testing: Not function‑tested; latching and turn‑release mechanisms operate mechanically by hand but full electrical function is not verified.

• Cosmetic state: Red caps show minor scuffs, small marks, and shop dust; bezels have light scratches from handling and mounting.​

• Packaging: Supplied loose together in the plastic tray shown; no original Schneider individual boxes included.​

• Completeness: Operator heads only; no contact blocks, fixing collars, legend plates, or wiring accessories included beyond what is visible.​

Notes

• Suitable for maintenance stock or building multiple emergency stop points on Harmony XB4 control panels.​

• Buyer should ensure compatibility with existing contact blocks and safety circuits, and follow all local safety standards when installing E‑stops.​

• Because these are mixed new/used surplus, the lot is sold as‑is for professional users familiar with industrial safety devices.

Suggested item specifics

• Brand: Schneider Electric

• Model: ZB4BS834

• MPN: ZB4BS834

• Type: Emergency stop head / mushroom operator

• Series: Harmony XB4

• Operator Color: Red

• Operator Size: 30 mm mushroom

• Mounting Hole Diameter: 22 mm

• Reset Action: Turn to release, trigger latching

• Quantity: 6 pieces (lot of 6)

• Condition: Mixed new and used, untested