R.STAHL 9160/13-11-11 Transmitter Supply Unit

The R.STAHL 9160/13-11-11 is a high-performance Ex i transmitter supply unit designed for safe signal transmission in hazardous areas. It provides reliable galvanic isolation, superior safety performance, and compatibility with various field devices in industrial automation systems.

This compact unit offers SIL 2 functional safety, efficient 24 V DC power operation, and flexible installation on standard DIN rails. With its durable design and robust safety data, it ensures stable and long-term operation even under demanding industrial conditions.

Key Features

Certified SIL 2 for functional safety (IEC 61508 standard)
Compact 17.6 mm housing for DIN rail mounting
Reliable galvanic isolation between input, output, and auxiliary power
Supports 24 V DC power supply with polarity reversal protection
Designed for hazardous area applications (Ex i circuits)
Long service life and low power consumption (2.1 W max)

Technical Specifications

Category	Specification
Manufacturer	R. STAHL
Model	9160/13-11-11
Series	9160 Series – Ex i Isolation Amplifier
Functional Safety	SIL 2, HFT 0, SFF 85%
PFDavg (1 year)	2.29E-04
PFDavg (2 years)	3.38E-04
PFDavg (5 years)	6.64E-04
Input Voltage (Uo)	27 V DC
Input Current (Io)	88 mA
Output Power (Po)	576 mW
Auxiliary Power	24 V DC (18–31.2 V range)
Power Consumption	2.1 W
Nominal Current	88 mA
Galvanic Isolation	1.5 kV AC (input/output/power)
Mounting Type	DIN Rail (NS35/15, NS35/7.5)
Connection Type	Screw terminal
Conductor Size	0.2–2.5 mm² (AWG 24–14)
Operation Indication	Green “PWR” LED
Safety Voltage Limit	253 V AC
Protection	Polarity reversal and undervoltage monitoring

Ex i Safety Parameters

Explosion Group	Max Co (μF)	Max Lo (mH)
IIC	0.09	2.3
IIB	0.705	17
IIA	2.33	28
IIIC	0.705	17
I	3.75	40

Mechanical Data

Parameter	Value
Width	17.6 mm (0.69 in)
Height	114.5 mm (4.51 in)
Depth	108 mm (4.25 in)
Weight	195 g (0.43 lb)
Installation Orientation	Vertical / Horizontal
Material	Industrial-grade housing
Mounting	DIN rail installation

Origin, Dimensions & Weight

Country of Origin: Germany
Dimensions: 17.6 × 114.5 × 108 mm
Net Weight: 195 g (per unit)
Packaging Weight (approx.): 250 g

Applications

The R.STAHL 9160/13-11-11 is widely used in:

Process automation and control systems
Intrinsically safe signal transmission
Hazardous environments in oil, gas, and chemical plants
Industrial safety and monitoring applications

Why Choose R.STAHL 9160/13-11-11

The 9160/13-11-11 unit offers the perfect balance between compact size and high safety integrity. Its robust build, low energy dissipation, and excellent EMC performance make it an ideal choice for critical industrial automation systems where reliability and safety are top priorities.