R. STAHL 9176/20-16-00k: Loop-Powered Binary Output for Ex i Field Circuits
Article Number: 222185
Product Overview
The R. STAHL 9176/20-16-00k is a loop-powered binary output device designed for intrinsically safe (Ex i) operation of Ex i solenoid valves, signal lamps, or horns. It requires no separate auxiliary power supply, as it is powered via the control current. The intrinsically safe outputs are galvanically isolated from the inputs. Two-channel variants offer galvanically isolated channels, reducing space requirements.
- Suitable for solenoid valves and signal devices.
- Two-channel variants reduce space requirements.
- No separate auxiliary power required.
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Area of Operation (Zones) | 0, 1, 2, 20, 21, 22 |
| Ex Interface Zone | IECEx BVS 13.0012 X |
| IECEx Gas Explosion Protection | Ex nA [ia Ga] IIC T4 Gc |
| IECEx Dust Explosion Protection | [Ex ia Da] IIIC |
| ATEX Gas Explosion Protection | II 3 (1) G Ex nA [ia Ga] IIC T4 Gc |
| ATEX Dust Explosion Protection | II (1) D [Ex ia Da] IIIC |
| FM Approval | FM16US0122X |
| cFM Approval | FM16CA0067X |
| cFM 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 |
| Temperature Rating | T4 Mounting vert. at Ta = 70°C, or horizontal Ta = 60°C |
| Certifications | ATEX (BVS), Brasilien (ULB), IECEx (BVS), Kanada (FM), Korea (KTL), SIL (exida), USA (FM), Volksrepublik China (NEPSI) |
| Marine Approval | CCS, EU RO MR (DNV) |
| Conformity Declarations | ATEX (EUK), Volksrepublik China (CCC) |
Safety-Related Data
| Parameter | Value |
|---|---|
| Maximum Voltage Ui | 27.6 V |
| Max. Current Io (Ex ia) | 110 mA |
| Max. Current Io (Ex ib) | 50 mA |
| Maximum Power Po | 760 mW |
| Max. External Capacitance Cext for IIC | 0.085 μF |
| Max. External Inductance Lext for IIC | 1.2 mH |
| Max. External Capacitance Cext for IIB | 0.667 μF |
| Max. External Inductance Lext for IIB | 9 mH |
| Internal Capacitance Ci | 1.1 nF |
| Internal Inductance Li | Negligible |
| Max. Voltage Uo parallel | 27.6 V |
| Max. Power Po parallel | 1520 mW |
| Max. Current Io (Ex ia) parallel | 220 mA |
| Max. Current Io (Ex ib) parallel | 100 mA |
| Internal Capacitance parallel | 2.2 nF |
| Internal Inductance parallel | Negligible |
| Max. Safety Voltage | 253 V |
| Max. Connectable Inductance Lext/Capacitance Cext (2 Channels parallel) | L: 1.8 mH, C: 0.665 μF (IIC); L: 1800 mH, C: 0.665 μF (IIIC) |
Electrical Data
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Internal Resistance R | 250 Ω |
| Auxiliary Power | None |
| Auxiliary Power Consumption | 0.5 W + (Ia x 37 mW / mA) |
| Reverse Polarity Protection | Yes ✔️ |
| Galvanic Isolation Test Voltage (Ex i Input to Ex i Input) | 500 V AC (per EN IEC 60079-11) |
| Galvanic Isolation Test Voltage (Input to Input) | 350 V AC (per EN 50178) |
| Input Voltage for ON | 18–31.2 V (per EN 61131-2) |
| Input Voltage for OFF | 0–5 V |
| Drive Power PE | 0.5 W + (Ia x 37 mW / mA) |
| Output Open-Circuit Voltage Uo | 25 V |
| Max. Output Current Ia | 35 mA |
Output Characteristics
| Parameter | Value |
|---|---|
| Max. Output Current Ia (Parallel Channels) | 70 mA |
| Internal Resistance R (Parallel Channels) | 125 Ω |
| Output Residual Ripple | < 100 mV |
| Output Switching Frequency | ≤ 10 Hz |
| Switching Delay ON/OFF | ≤ 50 ms |
| Switching Delay OFF/ON | ≤ 18 ms |
| Output Status Indicator | Yellow LED "OUT" |
Output Characteristic Curve:
The document includes a graph illustrating the output characteristic curve for models 9175/.0-16-11 and 9176/.0-16-00. The graph plots current (I [mA]) on the X-axis against voltage (U [V]) on the Y-axis. Curve A represents a single channel, while Curve B represents channel 1 in parallel with channel 2 (for types 9176/20-...). The curves show the operational limits under different temperature conditions.
Environmental Conditions
| Parameter | Value |
|---|---|
| Ambient Temperature (Single Device) | -20 °C ... 70 °C (-4 °F ... +158 °F) |
| Ambient Temperature (Group Mounting) | -20 °C ... 60 °C (-4 °F ... +140 °F) |
| Storage Temperature | -40 °C ... 80 °C (-40 °F ... +176 °F) |
| Max. Relative Humidity | 95% |
| Usage at Altitude | < 2000 m |
| Electromagnetic Compatibility | Tested according to EN 61326-1, industrial area; NAMUR NE 21 |
Mechanical Data
| Parameter | Value |
|---|---|
| Enclosure Protection (IP) | IP30 |
| Terminal Enclosure Protection (IP) | IP20 |
| Flammability Rating (UL 94) | V0 |
| Housing Material | Polyamide |
| Module Width | 17.6 mm (0.69 in) |
| Height | 114.5 mm (4.51 in) |
| Length | 128 mm (5.04 in) |
| Weight | 180 g (0.4 lb) |
Mounting and Installation
- Mounting Type: DIN rail NS35/15, NS35/7.5
- Installation Position: Horizontal or Vertical
- Connection Type: Spring clamp terminal
- Conductor Cross-Section (Solid): min. 0.2 mm², max. 2.5 mm²
- Conductor Cross-Section (Flexible): min. 0.2 mm², max. 2.5 mm²
- Conductor Cross-Section AWG: 24 ... 14
Wiring Diagram: The document shows a wiring diagram illustrating the connection between an Ex field device, the ISpac isolating transducer, and the PLC/PLS in a safe area. It depicts the Ex area (Division 1, Zone 0/1) and the safe area (Division 2, Zone 2).
Dimensional Drawing: A dimensional drawing provides the overall dimensions of the unit in millimeters and inches.
Accessories
Clear Cover
Available for ISpac Modules 91xx. Yellow, transparent. Provides clear device identification for SIL applications. (Packaging unit: 10 pieces). Article Number: 200914
Spare Parts
Screw Terminals
| Description | Article Number |
|---|---|
| 3-pole connector, screw terminal, M3 thread, 7 mm stripping length, green | 112817 |
| 3-pole connector, screw terminal, M3 thread, 7 mm stripping length, black | 112816 |
| 3-pole connector, screw terminal, M3 thread, 7 mm stripping length, blue | 112818 |
Screw Terminals with Test Socket
| Description | Article Number |
|---|---|
| 3-pole connector with test socket, screw terminal, M3 thread, 7 mm stripping length, black | 113005 |
| 3-pole connector with test socket, screw terminal, M3 thread, 7 mm stripping length, blue | 113004 |
Spring Clamp Terminals
| Description | Article Number |
|---|---|
| 3-pole connector with test socket, spring clamp terminal, 10 mm stripping length, green | 112825 |
| 3-pole connector with test socket, spring clamp terminal, 10 mm stripping length, black | 112824 |
| 3-pole connector with test socket, spring clamp terminal, 10 mm stripping length, blue | 112826 |
Note: Technical data, dimensions, weights, constructions, and delivery options are subject to change without notice. Illustrations are non-binding.
Manufacturer: R. STAHL Schaltgeräte GmbH | Am Bahnhof 30 | 74638 WALDENBURG
Contact: Tel. +49 7942 943 1700 | +49 7942 943 1777 | Email: sales.de@r-stahl.com | r-stahl.com
