Overview
The Turck MS 13-22 Ex0-R is a multi-safe switching amplifier relay designed for safety-critical and intrinsically safe applications. This 2-channel device amplifies low-power NAMUR control signals to high-power relay outputs, making it essential for safety instrumentation in hazardous classified areas.
Key Features
- Intrinsically Safe Certified: [Eex Ia] Iic certification for Class I and II, Division 1, Groups A–G hazardous locations
- NAMUR Control Circuits: DIN 19234 NAMUR standard, 8V/8mA inputs
- Dual Relay Outputs: AC 250V/4A (cosφ 0.7) or DC 60V/0.5A
- Screw-Terminal Connections: 17 screw terminals for reliable field wiring
- Intrinsic Safety Parameters: Maximum 11V, 55mA, 150mW
Technical Specifications
- Manufacturer: Turck Elektronik GmbH + Co. KG
- Part Number: MS 13-22 Ex0-R
- Type: 2-Channel Multi-Safe Switching Amplifier Relay
- Supply Voltage (Standard 24VDC variant): 24 Vdc
- Supply Voltage (Wide Range variant): 20–125 Vdc, 20–250 Vac, 40–70 Hz
- Power Consumption: Less than 3W
- Sensor Supply: 8V, 8mA NAMUR
- Relay Output (AC): 250 Vac, 4A, cosφ 0.7
- Relay Output (DC): 60 Vdc, 0.5A
- Intrinsic Safety Certification: PTB Nr. Ex-80/2103, [Eex Ia] Iic, Class I and II Div. 1, Groups A–G
- Operating Temperature: –25 to +60°C
- Weight: 220 g
- Connection Type: Screw terminals (17 terminals)
- Inductive Load Max: 1 mH
- Capacitive Load Max: 0.5 µF
Typical Applications
- Safety instrumentation in Zone 0 and Zone 1 hazardous areas
- Emergency stop relay amplification
- Safety interlock and shutdown systems
- Pressure and temperature limit switches with low-power signal outputs
- Intrinsically safe solenoid valve control
- Safety-certified machinery control in oil, gas, and chemical industries
Compatibility & Replacements
Compatible With
- NAMUR standard sensor signals (8V/8mA intrinsically safe)
- DIN 19234 control circuits
- Hazardous area classified systems (ATEX, IECEx, Class I Div 1)
- Low-power safety switches and pressure transmitters
- Standard industrial AC and DC relay control systems
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering.
Works With
- ATEX (European Directive 2014/34/EU) certified equipment
- IECEx (International Electrotechnical Commission) intrinsically safe systems
- NAMUR sensor networks (DIN 19234)
- Standard 24 VDC and wide-range power supply systems (20–250 Vac/Vdc variants)






