Technical Specifications
Parameter Specification
Article Number PSS-MBB124115AZZZZ
Safety Standards IEC 61508, ISO 13849-1
Safety Integrity Level SIL 3
Performance Level PL e
Number of Safe Inputs 12
Number of Safe Outputs 4
Number of Test Outputs 4
Power Supply 24 V DC (-15% / +20%)
Power Consumption < 5 W
Input Voltage 24 V DC
Output Current 2 A (per output)
Connection Removable spring-loaded terminals
Communication PSSnet (safety bus)
Operating Temperature -25 °C ... +60 °C
Storage Temperature -40 °C ... +85 °C
Dimensions (W × H × D) 45 × 125 × 120 mm
Weight Approx. 300 g
Protection Rating IP20
Mounting DIN rail (35 mm)
Key Features
1. High Safety Performance

SIL 3 according to IEC 61508

PL e according to ISO 13849-1

Suitable for highest safety requirements

2. Flexible I/O Configuration

12 safe inputs for safety devices

4 safe outputs (2 A each)

4 test outputs for input monitoring

Configurable function blocks

3. Modular System Integration

PSSnet safety bus communication

Expandable with additional modules

Centralized or distributed architecture

Easy system expansion

4. User-Friendly Design

Spring-loaded terminals for easy wiring

LED status indicators

Simple configuration with PSSuite software

Clear diagnostic information

Performance Characteristics
Response Time: < 20 ms

Cycle Time: < 10 ms

MTTFd: > 100 years

Diagnostic Coverage (DC): > 99%

Hardware Fault Tolerance (HFT): 1

Cross-circuit Detection: Yes

Safety Functions
Emergency stop monitoring

Safety door monitoring

Two-hand control

Light curtain integration

Safety mat monitoring

Speed monitoring

Standstill detection

Application Examples
Presses and Stamping Machines

Robotic Workcells

Assembly Lines

Packaging Machinery

Material Handling Systems

Automated Production Lines