R. STAHL 9176A Series: Loop-Powered Binary Output Ex i Field Circuit Isolators
Article Number: 222182
Model: MY R. STAHL 9176A
Product Overview
The R. STAHL 9176A series isolators provide binary outputs without auxiliary power for Ex i field circuits. They are suitable for operating solenoid valves, signaling devices, beacons, or horns in hazardous areas. These devices are powered by the control circuit, eliminating the need for separate power supplies. The two-channel variants offer galvanically separated channels, reducing space requirements.
- Suitable for solenoid valves and signaling equipment.
- Two-channel variants reduce space requirements.
- No separate auxiliary power required.
Technical Data
Explosion Protection
| Applications (Zones) | Interface Ex Zone | Approvals |
|---|---|---|
| 2, 0, 1, 20, 21, 22 | IECEx BVS 13.0012 X | IECEx gas, IECEx protection against gas explosions: Ex nA [ia Ga] IIC T4 Gc |
| IECEx BVS 13.0012 X | IECEx dust, IECEx protection against dust explosions: [Ex ia Da] IIIC | |
| BVS 04 ATEX E 075 X | ATEX gas, ATEX protection against gas explosions: II 3 (1) G Ex nA [ia Ga] IIC T4 Gc | |
| BVS 04 ATEX E 075 X | ATEX dust, ATEX protection against dust explosions: II (1) D [Ex ia Da] IIIC | |
| FM16US0122X | FM Approvals (FM) | |
| FM16CA0067X | FM Approvals (FM) | |
| 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 | CFMus Marked |
Certifications
- Naval Certification: CCS, EU RO MR (DNV)
- Conformity Certificate: ATEX (EUK), China (CCC)
- Other Approvals: Brasil (ULB), Canada (FM), China (NEPSI), Korea (KTL), USA (FM), IECEx (BVS), SIL (exida)
Safety Data
| Parameter | Value |
|---|---|
| Maximum Voltage (U) | 27.6 V |
| Maximum Current (Ex ia) | 110 mA |
| Maximum Current (Ex ib) | 50 mA |
| Maximum Power (P) | 760 mW |
| Max. external capacitance (C) for IIC | 0.085 µF |
| Max. external inductance (L) for IIC | 1.2 mH |
| Max. external capacitance (C) for IIB | 0.667 µF |
| Max. external inductance (L) for IIB | 9 mH |
| Internal Capacitance | 1.1 nF |
| Internal Inductance | Irrelevant |
| Max. voltage Uo parallel | 27.6 V |
| Max. current lo (Ex ia) parallel | 220 mA |
| Maximum safety technical voltage | 253 V |
Electrical Data
| Parameter | Value |
|---|---|
| Number of channels | 1 |
| Auxiliary Power | None |
| Power consumption auxiliary power | 0.5 W + (I x 37 mW/mA) |
| Reverse polarity protection | Yes |
Galvanic Separation
| Parameter | Value |
|---|---|
| Test voltage according to standard | EN IEC 60079-11 |
| Test voltage according to standard | EN 50178 |
| Input to Input | 350 V AC |
Input
| Parameter | Value |
|---|---|
| Input voltage for ON | 18 - 31.2 V (according to EN 61131-2) |
| Input voltage for OFF | 0 - 5 V |
| Control power PE | 0.5 W + (IA x 37 mW/mA) (with IA = required max. output current) |
Output
| Parameter | Value |
|---|---|
| Output voltage in open circuit (U₂) | 25 V |
| Max. output current (Ia max) | 35 mA |
| Output internal resistance (R) | 250 Ω |
| Output ripple residual | < 100 mV |
| Output switching frequency | <= 10 Hz |
| Switching delay ON/OFF | <= 50 ms |
| Switching delay OFF/ON | <= 18 ms |
| Status indication | Yellow LED "OUT" |
Environmental Conditions
| Parameter | Value |
|---|---|
| Ambient Temperature (single device) | -20 °C ... +70 °C |
| Ambient Temperature (group mounting) | -20 °C ... +60 °C |
| Ambient Temperature (single device, Fahrenheit) | -4 °F ... +158 °F |
| Ambient Temperature (group mounting, Fahrenheit) | -4 °F ... +140 °F |
| Storage Temperature | -40 °C ... +80 °C |
| Storage Temperature (Fahrenheit) | -40 °F ... +176 °F |
| Maximum relative humidity | 95% |
| Utilization at altitude | < 2000 m |
Note: Mounting conditions influence ambient temperature. Refer to "Control Cabinet Installation Instructions".
Electromagnetic Compatibility
Tested according to the following standards and regulations: EN 61326-1 for industrial use; NAMUR NE 21.
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 |
| Mounting width in inches | 0.69 in |
| Height | 114.5 mm |
| Height in inches | 4.51 in |
| Length | 108 mm |
| Length in inches | 4.25 in |
| Weight | 170 g |
| Weight in pounds | 0.37 lb |
Mounting / Installation
| Parameter | Value |
|---|---|
| Mounting type | NS 35/15, NS 35/7.5 DIN rail |
| Mounting position | Horizontal, Vertical |
| Connection type | Screw terminal |
| Minimum solid 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 |
| AWG ambient temperature | 24 - 14 |
Technical Drawings and Diagrams
Characteristic Curve
The document includes a characteristic output curve (U/I) for the 9175/.0-16-11 and 9176/.0-16-00 series. Curve A represents the characteristic per channel, and Curve B represents the characteristic for channel 1 parallel to channel 2 (for 9176/20-..-... types).
X-axis: I [mA]
Y-axis: U [V]
Measurement Diagram
A measurement diagram showing dimensions in millimeters and inches is provided for the device.
Overall dimensions: 108 mm [4.25 in] (Length), 114.5 mm [4.51 in] (Height), 17.6 mm [0.69 in] (Width).
The diagram also indicates compatibility with ISpac series 9143, 9146, 9147, 9160, 9162, 9163, 9165, 9167, 9170, 9172, 9175, 9176, 9180, 9182, 9193, and ISbus series 9412 with screw terminals.
Accessories
| Description | Article Number |
|---|---|
| Transparent cover for ISpac 91xx modules (yellow, transparent). Unambiguous device marking for SIL applications. (Sales unit: 10 pieces) | 200914 |
Spare Parts
Screw Terminal with Test Socket
| Description | Article Number |
|---|---|
| Tripolar plug, screw connection. Screw thread: M3. Stripping length: 7 mm. Color: green. | 112817 |
| Tripolar plug, screw connection. Screw thread: M3. Stripping length: 7 mm. Color: black. | 112818 |
| Tripolar plug, screw connection. Screw thread: M3. Stripping length: 7 mm. Color: blue. | 113005 |
| Tripolar plug, screw connection. Screw thread: M3. Stripping length: 7 mm. Color: black. | 113004 |
Spring Terminal with Test Socket
| Description | Article Number |
|---|---|
| Tripolar plug, spring connection. Stripping length: 10 mm. Color: green. | 112825 |
| Tripolar plug, spring connection. Stripping length: 10 mm. Color: black. | 112824 |
| Tripolar plug, spring connection. Stripping length: 10 mm. Color: blue. | 112826 |
R. STAHL reserves the right to modify technical data, dimensions, weights, designs, and delivery options.
