ZB4BG820
Product ID:37740
Updated: 2026/4/3

Key Features
- 1Construct with chromium-plated metal for corrosion resistance. 2、Withstand 1,000,000 cycles for long-lasting reliability. 3、Install easily with Harmony XB4 and Ronis 3131A compatibility. 4、Apply to versatile control and signaling applications. 5、Comply with IEC 60536 and UL 508 safety standards.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Range of Product | Harmony XB4 | Product or Component Type | Head for key selector switch |
| Device short name | ZB4 | Bezel material | Chromium plated metal |
| Mounting diameter | 0.9 in (22 mm) | Head type | Standard |
| Sale per indivisible quantity | 1 | Shape of signaling unit head | Round |
| Return | Right to centre | Operator profile | Black key switch |
| Type of operator | Spring return | Operator position information | 3 positions +/- 45° |
| Type of Keylock | Key 3131A | Key withdrawal position | Center |
| CAD overall width | 1.1 in (29 mm) | CAD overall height | 1.1 in (29 mm) |
| CAD overall depth | 2.8 in (72 mm) | Net Weight | 0.216 lb(US) (0.098 kg) |
| Resistance to high pressure washer | 1015.3 psi (7000000 Pa) 131 °F (55 °C) 0.1 m | Mechanical durability | 1000000 cycles |
| Electrical composition code | C3 6 single front mounting<br />C4 6 single and double front mounting<br />C5 5 single front mounting<br />C6 5 single and double front mounting<br />C7 4 single front mounting<br />C8 4 single and double front mounting<br />C11 3 single front mounting | Device presentation | Basic element |
| Protective treatment | TH | Ambient Air Temperature for Storage | -40…158 °F (-40…70 °C) |
| Ambient Air Temperature for Operation | -40…158 °F (-40…70 °C) | Overvoltage category | Class I IEC 60536 |
| IP degree of protection | IP66 IEC 60529<br />IP67<br />IP69<br />IP69K | NEMA degree of protection | NEMA 13<br />NEMA 4X |
| Standards | UL 508<br />EN/IEC 60947-5-1<br />EN/IEC 60947-1<br />EN/IEC 60947-5-4<br />EN/IEC 60947-5-5<br />GB 14048.5<br />CSA C22.2 No 14 | Product Certifications | LROS (Lloyds register of shipping)<br />GL<br />UL Listed<br />DNV<br />CSA<br />BV |
| Vibration resistance | 5 gn 2…500 Hz)IEC 60068-2-6 | Shock resistance | 30 gn 18 ms) half sine wave acceleration IEC 60068-2-27<br />50 gn 11 ms) half sine wave acceleration IEC 60068-2-27 |
Specifications may be subject to change without notice
