Technical Specifications
Parameter Specification
Article Number SRM50-HXAO-K22
Safety Standards IEC 61508, ISO 13849-1
Safety Integrity Level SIL 3
Performance Level PL e
Number of Channels 2
Contact Configuration 2 NO / 1 NC
Rated Voltage 24 V DC
Rated Current 6 A
Max. Switching Voltage 250 V AC/DC
Max. Switching Power 1500 VA / 180 W
Operating Temperature -25 °C ... +60 °C
Storage Temperature -40 °C ... +85 °C
Dimensions (W × H × D) 45 × 99 × 121 mm
Weight Approx. 200 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 safety functions up to stop category 0

2. Reliable Operation

Forced-guided contacts (EN 50205)

Redundant safety circuits

Self-monitoring functionality

Short-circuit detection

3. Compact Design

Space-saving modular design

Easy DIN rail mounting

Clear status indicators

Simple wiring

4. Versatile Application

Emergency stop monitoring

Safety gate monitoring

Two-hand control

Safety mat monitoring

Light curtain integration

Electrical Characteristics
Auxiliary Voltage: 24 V DC (±25%)

Power Consumption: < 3 W

Response Time: < 20 ms

Reset Time: < 100 ms

Mechanical Life: 10 × 10⁶ operations

Electrical Life: 1 × 10⁵ operations (at rated load)

Safety Functions
Emergency Stop: Stop category 0

Safety Gates: Monitoring of position switches

Two-hand Control: Type III C

Safety Mats: Pressure-sensitive mats

Light Curtains: ESPE type 4

Application Examples
Press Brakes: Emergency stop monitoring

Robotic Cells: Safety gate monitoring

Assembly Lines: Two-hand control

Packaging Machinery: Light curtain integration

Material Handling: Safety mat monitoring