The Schneider Electric XB4BT842 is a Harmony XB4 emergency stop push-button; emergency switching off push-button for 22 mm mounting holes: Emergency stop push button, Harmony XB4, metal, red mushroom 40mm, 22mm, trigger latching push pull, 1NC.
This reference is a emergency stop push-button; emergency switching off push-button; Schneider describes it as “Emergency stop push button, Harmony XB4, metal, red mushroom 40mm, 22mm, trigger latching push pull, 1NC”. Because the operator touches these parts every day, they wear far faster than the rest of the panel.
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Technical data
| Schneider reference | XB4BT842 |
|---|---|
| Product or component type | Emergency stop push-button; Emergency switching off 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 | Push-pull |
| 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 | (21-22)NC |
| Net weight | 0.125 kg |
| Contacts type and composition | 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 |
At a glance
- Emergency stop push button
- Harmony XB4
- metal
- red mushroom 40mm
- 22mm
- trigger latching push pull
- 1NC
Typical applications
- Replacement of broken buttons or lamps
- Machine control panels and operator stations
- Start, stop and reset functions
- Motor control centres and pump panels
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
What hole size does it need?
22 mm (22.5 mm cut-out), the standard size for Harmony XB4 and XB5.
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).
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.
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.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the order number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
