Schneider XB4BS8445: complete Harmony XB4 metal emergency switching off push-button; emergency stop push-button, Ø 22 mm, described by Schneider as “Emergency stop switching off, Harmony XB4, metal, red mushroom, 40mm, 22mm, trigger latching turn to release, 1NO+1NC”.
Harmony XB4 has a chromium-plated metal bezel for harsh industrial environments and heavy-duty use.
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Technical data
| Schneider reference | XB4BS8445 |
|---|---|
| Product or component type | Emergency switching off push-button; Emergency stop push-button |
| Bezel material | Chromium plated metal |
| Fixing collar material | Zamak |
| Mounting diameter | 22.5 mm |
| Sale per indivisible quantity | 1 |
| Shape of signaling unit head | Round |
| Type of operator | Trigger action and mechanical latching |
| Head type | Standard |
| Reset | Turn to release |
| Operator profile | Red mushroom Ø 40 mm, unmarked |
| Contact operation | Slow-break |
| Connections – terminals | Screw clamp terminals, <= 2 x 1.5 mm² with cable end conforming to IEC 60947-1; Screw clamp terminals, >= 1 x 0.22 mm² without cable end conforming to IEC 60947-1 |
| Height | 47 mm |
| Width | 40 mm |
| Depth | 82 mm |
| Terminals description ISO n°1 | (13-14)NO |
| Net weight | 0.13 kg |
| Contacts type and composition | 1 NO + 1 NC |
| Contacts usage | Standard contacts |
| Positive opening | With conforming to IEC 60947-5-1 appendix K |
| Dimensions (W x H x D) | 40 x 47 x 82 mm |
| Condition | New, original Schneider Electric |
Main characteristics
- Emergency stop switching off
- Harmony XB4
- metal
- red mushroom
- 40mm
- 22mm
- trigger latching turn to release
- 1NO+1NC
Typical applications
- Replacement of broken buttons or lamps
- Motor control centres and pump panels
- Panel retrofits with 22 mm holes
- Machine control panels and operator stations
Compatibility and replacement
Spare contact blocks (ZBE101 NO, ZBE102 NC), light modules and legend holders are available separately. XB5 and XB4 share the same contact blocks and 22 mm hole size.
Frequently asked questions
Can I replace only the contact block?
Yes. Harmony contact blocks (for example ZBE101 NO or ZBE102 NC) clip onto the fixing collar and can be changed without removing the head.
What is the degree of protection?
Per Schneider: IP66 conforming to IEC 60529; IP67; IP69; IP69K.
Is it a complete unit?
Yes, the reference is a complete unit as described by Schneider (head plus body with contacts or light block).
What hole size does it need?
22 mm (22.5 mm cut-out), the standard size for Harmony XB4 and XB5.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
