For 22 mm panel cut-outs, the Schneider XB4BG21 is a Harmony XB4 (chromium-plated metal bezel) selector switch.
Colour coding follows IEC 60073: green or white for start/on, red for stop/emergency, yellow/amber for warning and blue for reset or mandatory actions.
See our Schneider Electric range.
Technical data
| Schneider reference | XB4BG21 |
|---|---|
| Product or component type | Selector switch |
| Bezel material | Chromium plated metal |
| Fixing collar material | Zamak |
| Mounting diameter | 22.5 mm |
| Sale per indivisible quantity | 1 |
| Head type | Standard |
| Shape of signaling unit head | Round |
| Type of operator | Stay put |
| Operator profile | Key switch |
| Operator position information | 2 positions 90° |
| Contacts type and composition | 1 NO |
| 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 | 30 mm |
| Depth | 86 mm |
| Terminals description ISO n°1 | (13-14)NO |
| Net weight | 0.117 kg |
| Type of keylock | Key 455 |
| Key withdrawal position | Left-hand |
| Dimensions (W x H x D) | 30 x 47 x 86 mm |
| Condition | New, original Schneider Electric |
Key characteristics (per Schneider)
- Key switch selector
- Harmony XB4
- metal
- black
- 22mm
- key 455
- 2 positions
- stay put
- 1 NO
Typical applications
- Machine control panels and operator stations
- Start, stop and reset functions
- Motor control centres and pump panels
- Panel retrofits with 22 mm holes
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; IP69; IP69K; IP67.
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.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
Before you order
Compare the complete order number on the old unit with this page, including the suffix: in most ranges the last characters set the coil voltage, current range or version. If the label is worn, send us a photo and we will identify the part.
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.
