Description
The Harmony XB4 XB4BW34M5 illuminated push button is engineered for industrial control applications where durability, visibility, and reliability are essential. It features a round, red flush head with a plain lens, operated by a spring return mechanism for momentary actuation. The universal LED ensures long-lasting, bright illumination when powered by 230–240V AC.
Constructed with a chromium-plated metal bezel and zamak fixing collar, this push button is both aesthetically pleasing and resistant to wear. Its screw-clamp connections ensure secure wiring, while the IP66/IP67/IP69/IP69K ratings make it ideal for harsh environments subject to dust, water, vibration, or impact. The unit provides 1 normally open (NO) and 1 normally closed (NC) slow-break contact configuration, making it suitable for a variety of control functions.
Typical applications include control panels, machinery operation stations, and environments requiring high mechanical robustness and operator visibility.
Specifications
| Specification | Details |
|---|---|
| Part Number | XB4BW34M5 |
| Range of Product | Harmony XB4 |
| Product or Component Type | Illuminated push-button |
| Device Short Name | XB4 |
| Bezel Material | Chromium-plated metal |
| Fixing Collar Material | Zamak |
| Mounting Diameter | 22.5 mm (0.9 in) |
| Head Type | Standard |
| Shape of Signaling Unit Head | Round |
| Type of Operator | Spring return |
| Operator Profile | Red flush |
| Lens Type | Plain |
| Contacts Type & Composition | 1 NO + 1 NC |
| Contact Operation | Slow-break |
| Terminals Description ISO n°1 | (13-14) NO, (21-22) NC |
| Height | 47 mm (1.9 in) |
| Width | 30 mm (1.2 in) |
| Depth | 57 mm (2.2 in) |
| Net Weight | 0.097 kg (0.214 lb) |
| Supply Voltage | 230–240 V AC |
| Light Source | Universal LED |
| Protection Rating | IP66 / IP67 / IP69 / IP69K |
| Sale Per Indivisible Quantity | 1 |







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