B&R X20 SO 4110 Safe Digital Output Module – SIL 3 / PL e

The X20 SO 4110 is a safety digital output module from the B&R X20 SafeIO series. It provides four Type A safety outputs (0.5 A per channel, 2 A total) with high-side and low-side switching configuration per channel, supporting the highest safety integrity level (SIL 3 per IEC 61508, PL e / Cat. 4 per EN ISO 13849-1). The module features integrated current monitoring, open-circuit detection, and output protection for reliable safety applications.

Key Features:

· 4 safe digital outputs (Type A)
· Output current: 0.5 A per channel, 2 A total
· Switching configuration: High-side + low-side per channel
· Safety rating: SIL 3 (IEC 61508), PL e / Cat. 4 (EN ISO 13849-1)
· OSSD response time: <500 µs
· Diagnostics: Current monitoring, open-circuit detection, LED status indicators
· Bus interface: X2X Link
· Power supply: 24 VDC (-15% / +20%)
· Power consumption: 0.25 W (bus), 1.3 W (internal I/O)
· Operating temperature: 0°C to +60°C (horizontal installation)
· Protection class: IP20
· Module width: 25 mm (2.5 cm)

Applications:

· Emergency stop circuits
· Safety doors and guards
· Contactor and relay control
· Machine safety monitoring
· Process safety in industrial automation

Compatibility:
Requires a safe X2X Link bus module (X20BM33 or X20BM36) and a safe terminal block (X20TB52) for proper safety operation. Compatible with B&R X20 systems supporting safe I/O.