Harmony XB4
Schneider Electric catalog image for this SKU; may represent the product family.
HEAD FOR ILLUMINATED PUSH-BUTTON
Head for illuminated push button, Harmony XB4, metal, red flush, 22mm, universal LED, spring return, illuminated ring
SKU ZB4BW943Schneider Electric ZB4BW943 is a head for illuminated push-button in the Harmony XB4 range. Key specifications include ip protection: IP66 conforming to IEC 60529; net weight: 0.026 kg; product range: Harmony XB4.
IP66 conforming to IEC 60529IP protection
0.026 kgNet weight
Harmony XB4Product range
PRODUCT DATA
Technical specifications
Source: Schneider Electric product catalog.
Verified September 18, 2026.
| Product reference | ZB4BW943 |
|---|---|
| Range of product | Harmony XB4 |
| Product or component type | Head for illuminated push-button |
| Device short name | ZB4 |
| Product compatibility | Universal LED |
| Bezel material | Chromium plated metal |
| Head type | Standard |
| Mounting diameter | 22.5 mm |
| Sale per indivisible quantity | 1 |
| Shape of signaling unit head | Round |
| Type of operator | spring return |
| Operator profile | Red flush, unmarked |
| Operator additional information | With illuminated ring |
| Cap/operator or lens colour | Red |
| CAD overall width | 29 mm |
| CAD overall height | 29 mm |
| CAD overall depth | 30 mm |
| Net weight | 0.026 kg |
| Resistance to high pressure washer | 7000000 Pa at 55 °C, distance : 0.1 m |
| Mechanical durability | 10000000 cycles |
| Electrical composition code | M1 for <6 contacts using single blocks in front mounting with integral LED M2 for <6 contacts using single and double blocks in front mounting with integral LED M6 for <2 contacts using single blocks in front mounting with integral LED and transformer M10 for <2 contacts using single blocks in front mounting with integral LED |
| Device presentation | Basic sub-assemblies |
| Protective treatment | TH |
| Ambient air temperature for storage | -40…70 °C |
| Ambient air temperature for operation | -40…70 °C |
| Overvoltage category | Class I conforming to IEC 60536 |
| IP degree of protection | IP66 conforming to IEC 60529 IP67 IP69 IP69K |
| Enclosure Type | UL type 4X/13 |
| IK degree of protection | IK06 conforming to IEC 62262 |
| Standards | IEC 60947-5-5 UL 508 IEC 60947-1 IEC 60947-5-4 JIS C8201-5-1 IEC 60947-5-1 CSA C22.2 No 14 JIS C8201-1 |
| Product certifications | BV CSA DNV LROS (Lloyds register of shipping) UL listed |
| Vibration resistance | 5 gn (f= 2…500 Hz) conforming to IEC 60068-2-6 |
| Shock resistance | 30 gn (duration = 18 ms) for half sine wave acceleration conforming to IEC 60068-2-27 50 gn (duration = 11 ms) for half sine wave acceleration conforming to IEC 60068-2-27 |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Schneider Electric reference ↗.