This document is a product manual for wellsconn's UB2 series flat button switch L82 illuminated button switch. It introduces the features and characteristics of the product, including electrical capacity, mechanical life, electrical life, operating force, contact timing, travel, material and coating, environmental data, installation, processing, standards and certification.
The document lists the general specifications for the UB2 thin‑flat button switches, including electrical capacity (5 A at 125/250 V AC or 5 A at 30 V DC), power rating (0.4 VA at up to 28 V AC/DC), contact resistance, insulation resistance, and mechanical life. Material information covers glass‑fiber‑reinforced polyamide housings, stainless‑steel frames, silver or gold alloy contacts, and various coating options.
Installation instructions describe mounting forces, terminal types, and processing steps such as wave‑soldering and cleaning. The manual also details environmental limits, vibration and shock testing, and UL94V‑0, UL and C‑UL certifications with part numbers for UL‑marked switches. This manual is written in Chinese.
| Rated current | 5 A at 125/250 V AC or 5 A at 30 V DC |
|---|---|
| Maximum power rating | 0.4 VA at up to 28 V AC/DC |
| Contact resistance (silver) | ≤ 50 mΩ |
| Contact resistance (gold) | ≤ 100 mΩ |
| Insulation resistance | ≥ 200 MΩ at 500 V DC |
| Insulation strength (contacts) | ≥ 1 000 V AC for 1 min |
| Insulation strength (to housing) | ≥ 1 500 V AC for 1 min |
| Mechanical life (momentary) | ≥ 1 000 000 operations |
| Operating force (single pole) | 1.90 N |
| Operating temperature range | –25 °C to +50 °C |
The UB2 L82 switch is rated for 5 A at 125/250 V AC or 5 A at 30 V DC.
The switches operate from –25 °C up to +50 °C.
Momentary‑type switches are rated for at least 1 000 000 operations.
The series complies with UL94V‑0 and has UL and C‑UL certifications (file numbers WOYR2.E44145 and WOYR8.E44145).