R. STAHL 9176/20-16-00s Loop-Powered Binary Output Isolator Barrier
The R. STAHL 9176/20-16-00s is a loop-powered binary output isolator barrier designed for Ex i field circuits. It is suitable for intrinsically safe operation of Ex i solenoid valves, indicator lamps, or horns.
Key Features
- Suitable for solenoid valves and signalling devices.
- Two-channel variants reduce space requirements.
- No need for a separate auxiliary power supply; powered by the control circuit.
- Intrinsically safe outputs are galvanically separated from the inputs.
- Two-channel variants feature galvanically separated channels.
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Application range (zones) | 0, 1, 2, 20, 21, 22 |
| Ex interface zone | 0, 1, 2, 20, 21, 22 |
| IECEX gas certificate | IECEx BVS 13.0012 X |
| IECEx gas explosion protection | Ex nA [ia Ga] IIC T4 Gc |
| IECEx dust certificate | IECEx BVS 13.0012 X |
| IECEx dust explosion protection | [Ex ia Da] IIIC |
| ATEX gas certificate | BVS 04 ATEX E 075 X |
| ATEX gas explosion protection | II 3 (1) G Ex nA [ia Ga] IIC T4 Gc |
| ATEX dust certificate | BVS 04 ATEX E 075 X |
| ATEX dust explosion protection | II (1) D [Ex ia Da] IIIC |
| FM certificate | FM16US0122X |
| CFM certificate | FM16CA0067X |
| Marking cFMus | 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 |
| Certificates | T4 Mounting vert. at Ta = 70°C, or horizontal Ta = 60°C; See Doc. 91 766 01 31 1 |
| Ship approval | CCS, EU RO MR (DNV) |
| Declaration of conformity | ATEX (EUK), China (CCC) |
Safety Data
| Parameter | Value |
|---|---|
| Max. voltage Uo parallel | 27.6 V |
| Max. current Io (Ex ia) | 110 mA |
| Max. current Io (Ex ib) | 50 mA |
| Max. power Po | 760 mW |
| Max. permissible external capacitance C/C for IIC | 0.085 μF |
| Max. permissible external inductance L/La for IIC | 1.2 mH |
| Max. permissible external capacitance C/C for IIB | 0.667 μF |
| Max. permissible external inductance L/La for IIB | 9 mH |
| Internal capacitance | 1.1 nF |
| Internal inductance | Negligible |
| Max. voltage Uo parallel | 27.6 V |
| Max. power Po parallel | 1520 mW |
| Max. current Io (Ex ia) paral. | 220 mA |
| Max. current Io (Ex ib) paral. | 100 mA |
| Internal capacitance parallel | 2.2 nF |
| Internal inductance parallel | negligible |
| Safety-related max. voltage | 253 V |
| Intrinsically safe limiting values inductance L/capacitance C. | Max. connectable inductance L/capacitance C₀: 2 parallel channels |
| IIC | L₀ [mH]: 1.8 mH; C₀ [µF]: 0.665 μF |
| IIB | L₀ [mH]: 1.800 mH; C₀ [µF]: 0.665 μF |
Electrical Data
| Parameter | Value |
|---|---|
| Number of channels | 2 |
| Internal resistance R | 250 Ω |
| Auxiliary Power | without |
| Auxiliary power consumption | 0.5 W + (I x 37 mW/mA) |
| Polarity reversal protection | Yes |
| Galvanic Isolation | |
| Test voltage as per standard | EN IEC 60079-11 |
| Ex i input to Ex i input | 500 V AC |
| Test voltage as per standard | EN 50178 |
| Input to input | 350 V AC |
Input
| Parameter | Value |
|---|---|
| Input | In accordance with EN 61131-2 |
| Input voltage for ON | 18 – 31.2 V |
| Input voltage for OFF | 0 – 5 V |
| Control Power PE | 0.5 W + (IA x 37 mW/mA) (with IA = max. required output current) |
Output
| Parameter | Value |
|---|---|
| Output open-circuit voltage U₂ | 25 V |
| Max. output current Ia max | 35 mA |
| Max. output current I note | Parallel channels: 70 mA |
| Internal resistance R₁ note | 250 Ω/parallel: 125 Ω |
| Output residual ripple | < 100 mV |
| Output switching frequency | ≤ 10 Hz |
| Switching delay ON/OFF | ≤ 50 ms |
| Switching delay OFF/ON | ≤ 18 ms |
| Switching state indication | Yellow "OUT" LED |
Output Characteristic Curve
A graphical representation shows the output characteristic for the 9175/.0-16-11; 9176/.0-16-00 series. The X-axis represents current in mA (0-45 mA), and the Y-axis represents voltage in V (0-25 V). Curve A illustrates the characteristic for each channel, while Curve B shows the characteristic for channel 1 and parallel channel 2 for types 9176/20-..-....
Ambient Conditions
| Parameter | Value |
|---|---|
| Ambient temperature °C | -20 °C ... 70 °C (Single device); -20 °C ... 60 °C (Group assembly) |
| Ambient temperature °F | -4 °F ... +158 °F (Single device); -4 °F ... +140 °F (Group assembly) |
| Storage temperature °C | -40 °C ... 80 °C |
| Storage temperature °F | -40 °F ... +176 °F |
| Max. relative humidity | 95% |
| Use at the height of | < 2000 m |
| Electromagnetic compatibility | Tested to the following standards and regulations: EN 61326-1 For use in industrial areas; NAMUR NE 21 |
Note: Installation conditions affect the ambient temperature. Observe the "Cabinet installation guide".
Mechanical Data
| Parameter | Value |
|---|---|
| Degree of protection (IP) | IP30 |
| Degree of protection (IP) terminals | IP20 |
| Fire resistance (UL 94) | V0 |
| Enclosure material | Polyamide |
| Grid dimension | 17.6 mm |
| Width | 17.6 mm |
| Width, inches | 0.69 in |
| Height | 114.5 mm |
| Height in inches | 4.51 in |
| Length | 108 mm |
| Length in inches | 4.25 in |
| Weight | 185 g |
| Weight | 0.41 lb |
Mounting / Installation
| Parameter | Value |
|---|---|
| Mounting orientation | Vertical, Horizontal |
| Connection type | Screw terminal |
| Min. rigid conductor cross section | 0.2 mm² |
| Max. rigid conductor cross section | 2.5 mm² |
| Min. flex conductor cross section | 0.2 mm² |
| Max. flex conductor cross section | 2.5 mm² |
| Connection cross-section AWG | 24 ... 14 |
Technical Drawings
Diagrams illustrate connection configurations for hazardous and non-hazardous locations. The first diagram shows a connection for 9176/10-..-.., and the second for 9176/20-..-..-.., depicting the field device, ISpac Isolator, and control system connections.
Accessories
| Accessory | Art. No. |
|---|---|
| Transparent cover for 91xx ISpac modules (Yellow, transparent). Clear identification of the device for SIL applications. (Packaging unit: 10 pieces) | 200914 |
Spare Parts
Screw terminal
| Description | Art. No. |
|---|---|
| 3-pole plug, screw connector, thread: M3, stripping length: 7 mm, color: green | 112817 |
| 3-pole plug, screw connector, thread: M3, stripping length: 7 mm, color: black | 112816 |
| 3-pole plug, screw connector, thread: M3, stripping length: 7 mm, color: blue | 112818 |
Screw terminal with test tap
| Description | Art. No. |
|---|---|
| 3-pole plug with test tap, screw connector, thread: M3, stripping length: 7 mm, colour: black | 113005 |
| 3-pole plug with test tap, screw connector, thread: M3, stripping length: 7 mm, colour: blue | 113004 |
Spring clamp terminal
| Description | Art. No. |
|---|---|
| 3-pole plug with test tap, spring clamp connection, stripping length: 10 mm, color: green | 112825 |
| 3-pole plug with test tap, spring clamp connection, stripping length: 10 mm, color: black | 112824 |
| 3-pole plug with test tap, spring clamp connection, stripping length: 10 mm, color: blue | 112826 |
R. STAHL, INC. | 13259 N. Promenade Blvd. | Stafford, TX 77477 | Tel. +1 800 782 4357
