L72L illuminated push button switch, with bright or ultra-bright LED, available in red, amber, green, blue or white, full front light or point light and square or rectangular models. This series of switches can be used in compact applications, with a smaller panel back size, which can be used for embedded installation in a compact space. The embedded action contact mechanism provides sensitive operation, and the fast connection and quick disconnection features can limit the generation of arc and extend the electrical life. The locking device circuit status is visual and tactile.
The document provides detailed specifications for the UB series thin flat button switches, including electrical capacity, contact resistance, insulation resistance, mechanical and electrical life, and operating force. It also describes the construction materials such as glass‑fiber reinforced polyamide housing and stainless‑steel contacts.
Environmental performance data are listed, showing a working temperature range of –25 °C to +50 °C, humidity limits, vibration and shock resistance, as well as UL94V‑0, UL, C‑UL and CSA certifications. Installation options, optional accessories, and part numbers for various configurations are also included. This manual is written in Chinese.
| Power rating (resistive load) | 5 A at 125/250 V AC or 5 A at 30 V DC |
|---|---|
| Small power rating | 0.4 VA at up to 28 V AC/DC |
| Contact resistance | Silver ≤50 mΩ, Gold ≤100 mΩ |
| Insulation resistance | ≥200 MΩ at 500 V DC |
| Insulation strength | ≥1 kV AC between contacts (1 min), ≥1.5 kV AC between contacts and housing (1 min) |
| Mechanical life (instantaneous type) | ≥1 000 000 operations |
| Electrical life (silver contacts) | ≥10 000 operations (resistive load) / ≥100 000 operations (3 A at 125 V AC) |
| Operating force (single‑pole) | 1.9 N for square and rectangular housings |
| Travel | Pre‑travel 0.067 in (1.7 mm), over‑travel 0.024 in (0.6 mm), total 0.091 in (2.3 mm) |
| Housing material | Glass‑fiber reinforced polyamide (UL94V‑0) |
| Operating temperature range | –25 °C to +50 °C |
| Humidity rating | 90‑95 % RH for 96 h at 40 °C |
| Vibration resistance | 1.5 mm peak‑to‑peak, 10‑55 Hz, 1 min, 3 axes |
| Shock resistance | 50 g (490 m/s²) on 6 axes, 5 impacts per axis |
The switch can handle 5 A at 125/250 V AC or 5 A at 30 V DC for resistive loads.
The device is rated for temperatures from –25 °C up to +50 °C.