R. STAHL 9176/20-15-00k Ex i Binary Output Isolator
Article Number: 222181
Product Description
The R. STAHL 9176/20-15-00k is a loop-powered binary output isolator for Ex i field circuits. It is suitable for operating solenoid valves and signaling devices. The two-channel variants reduce space requirements and do not need a separate auxiliary power supply, as they are powered by the control circuit. The intrinsic safety outputs are galvanically isolated from the inputs, and two-channel variants feature separate galvanic isolation for each channel.
Key Features
- Suitable for solenoid valves and signaling devices
- Reduced space requirements with two-channel variants
- No separate auxiliary power required
- Galvanic isolation between input and output
- Intrinsic safety
Technical Data
Explosion Protection
| Applications (zones) | 0, 1, 2, 20, 21, 22 |
| Ex zone interface | IECEx BVS 13.0012 X |
| IECEx Gas Protection | Ex nA [ia Ga] IIC T4 Gc |
| IECEx Dust Protection | IECEx BVS 13.0012 X [Ex ia Da] IIIC |
| ATEX Gas Protection | BVS 04 ATEX E 075 X II 3 (1) G Ex nA [ia Ga] IIC T4 Gc |
| ATEX Dust Protection | BVS 04 ATEX E 075 X II (1) D [Ex ia Da] IIIC |
| FM approval | FM16US0122X |
| cFMus approval | FM16CA0067X |
| CFMus Marking | Class I, Div. 2, Groups A,B,C,D; Class I, Zone 2, Group IIC AIS Class I,II,III, Div. 1, Groups A,B,C,D,E,F,G; Class I, Zone 0, [AEx ia]/[Ex ia] IIC T4 Mounting vert. at Ta = 70°C, or horizontal Ta = 60°C |
Safety Data
| Maximum voltage U | 27.6 V |
| Maximum current I (Ex ia) | 86.5 mA |
| Maximum current I (Ex ib) | 44 mA |
| Maximum power P | 596 mW |
| Maximum external capacitance C for IIC | 0.085 µF |
| Maximum external inductance L for IIC | 1.8 mH |
| Maximum external capacitance C for IIB | 0.667 µF |
| Maximum external inductance L for IIB | 17 mH |
| Internal capacitance | 1.1 nF |
| Internal inductance | Irrelevant |
| Maximum parallel voltage Uo | 27.6 V |
| Maximum parallel power P | 1192 mW |
| Maximum parallel current lo (Ex ia) | 173 mA |
| Maximum parallel current lo (Ex ib) | 88 mA |
| Parallel internal capacitance | 2.2 nF |
| Parallel internal inductance | Irrelevant |
| Technical safety voltage | 253 V |
| Intrinsic safety limits inductance Lo/capacitance Co for IIC | Max. connectable inductance L / capacitance Co: 2 parallel channels |
| IIB | L: 2.5 mH, C: 0.665 µF |
| IIIC | L: 2.500 mH, C: 0.665 µF |
Electrical Data
| Number of channels | 2 |
| Internal resistance R | 320 Ω |
| Auxiliary power | None |
| Power consumption auxiliary power | 0.5 W + (I x 37 mW/mA) |
| Reverse polarity protection | Yes |
| Galvanic isolation | |
| Test voltage according to EN IEC 60079-11 (Ex i to Ex i) | 500 V AC |
| Test voltage according to EN 50178 (Input to Input) | 350 V AC |
| Input | According to EN 61131-2 |
| ON input voltage | 18–31.2 V |
| OFF input voltage | 0–5 V |
Environmental Conditions
| Ambient temperature (single device) | -20 °C ... 70 °C |
| Ambient temperature (group installation) | -20 °C ... 60 °C |
| Ambient temperature (single device, Fahrenheit) | -4 °F ... +158 °F |
| Ambient temperature (group installation, Fahrenheit) | -4 °F ... +140 °F |
| Note | Mounting conditions influence ambient temperature. Refer to "Installation Instructions for Control Cabinet". |
| Storage temperature | -40 °C ... 80 °C |
| Storage temperature (Fahrenheit) | -40 °F ... +176 °F |
| Maximum relative humidity | 95% |
| Altitude utilization | < 2000 m |
| Electromagnetic compatibility | Tested according to EN 61326-1 for industrial use; NAMUR NE 21 |
Mechanical Data
| Degree of protection (IP) | IP30 |
| Degree of protection (IP) terminals | IP20 |
| Fire resistance (UL 94) | VO |
| Enclosure material | Polyamide |
| Grid dimension | 17.6 mm |
| Width | 17.6 mm |
| Mounting width in inches | 0.69 in |
| Height | 114.5 mm |
| Height in inches | 4.51 in |
| Length | 128 mm |
| Length in inches | 5.04 in |
| Weight | 180 g (0.4 lb) |
| Mounting/Installation | DIN rail NS35/15, NS35/7.5 |
| Mounting position | Horizontal, Vertical |
| Connection type | Spring terminal |
| Minimum rigid conductor cross-section | 0.2 mm² |
| Maximum flexible conductor cross-section | 2.5 mm² |
| Minimum flexible conductor cross-section | 0.2 mm² |
| Maximum flexible conductor cross-section | 2.5 mm² |
| Ambient temperature AWG | 24 ... 14 |
Diagrams
A characteristic curve diagram shows the relationship between output current (I [mA]) and input voltage for different configurations. Curve A represents the characteristic per channel, and Curve B represents the characteristic for channel 1 parallel to channel 2 for types 9176/20-...-...
A dimensional drawing shows the overall dimensions of the device, including grid dimension, width, height, and length, with both metric and imperial measurements provided.
Accessories
| Transparent cover | For ISpac modules 91xx, yellow, transparent. Unambiguous device marking for SIL applications. (Sales unit: 10 pieces) | 200914 |
Spare Parts
| Description | Part No. |
|---|---|
| Screw terminal plug, screw connection M3, stripping length 7 mm, green | 112817 |
| Screw terminal plug, screw connection M3, stripping length 7 mm, black | 112816 |
| Screw terminal plug, screw connection M3, stripping length 7 mm, blue | 112818 |
| Screw terminal plug with test socket, screw connection M3, stripping length 7 mm, black | 113005 |
| Screw terminal plug with test socket, screw connection M3, stripping length 7 mm, blue | 113004 |
| Spring terminal plug with test socket, connection with spring, stripping length 10 mm, green | 112825 |
| Spring terminal plug with test socket, connection with spring, stripping length 10 mm, black | 112824 |
| Spring terminal plug with test socket, connection with spring, stripping length 10 mm, blue | 112826 |
R. STAHL reserves the right to modify technical data, dimensions, weights, designs, and delivery options.
