BG 5925/900 safemaster is a safety technology light beam switch circuit produced by SICK. The product meets the requirements of EN 954-1 and has a maximum of 3 closed switches, which can be used for 1 or 2 channel circuits and has automatic start-up and LED display functions.
The BG 5925/900 safemaster is a safety‑rated switch unit for light barriers, compliant with EN 954‑1 safety category 4 and the EU Machinery Directive 98/37/EC. It supports 1‑ or 2‑channel wiring, provides LED status indicators, and includes line‑break detection on the start button.
Technical data include a rated voltage of DC 24 V, a power consumption of about 2 W, and contact ratings up to 8 A. The device can switch small loads (1 mVA – 7 VA, 0.1 – 60 V, 1 – 300 mA) and offers a mechanical life of 10 × 10⁵ switching cycles and an electrical life of over 150 × 10⁵ cycles. It operates from –15 °C to +55 °C and carries CE certification. This manual is written in German.
| Rated voltage | DC 24 V |
|---|---|
| Power consumption | ≈ 2 W |
| Contact count (BG 5925.02) | 2 contacts |
| Mechanical life | 10 × 10⁵ cycles |
| Electrical life | > 150 × 10⁵ cycles |
| Operating temperature range | -15 °C to +55 °C |
| CE marking | Yes |
The device is rated for DC 24 V.
The BG 5925.02 version provides 2 contacts.
It complies with safety category 4 according to EN 954‑1.