R. STAHL 9276A Binary Output Ex i Field Circuit Isolator
Article No. 261447
Product Overview
The R. STAHL 9276A series digital outputs provide signals for the operation of intrinsic safety solenoid valves Ex i, pilot lights, or horns. These devices do not require separate auxiliary power, as they are supplied via the control circuit. The intrinsic safety outputs are galvanically isolated from the inputs.
Key Features:
- Extensive catalog for a wide range of solenoid valves
- Space-saving design with a narrow construction of 12.5 mm width
- Usable up to SIL 3 (IEC/EN 61508)
Technical Data: Explosion Protection
| Parameter | Value |
|---|---|
| Applications (zones) | 0, 1, 2, 20, 21, 22 |
| Interface Ex zone | IECEx IBE 17.0045X |
| IECEx Gas Explosion Protection | Ex ec [ia IIB Ga] IIC T4 Gc |
| IECEx Dust Explosion Protection | IECEx IBE 17.0045X [Ex ia Da] IIIC |
| IECEx Firedamp Explosion Protection | IECEX IBE 17.0045X [Ex ia Ma] I |
| ATEX Gas Explosion Protection | IBEXU 17 ATEX 1153 X II 3 (1) G Ex ec [ia IIB Ga] IIC T4 Gc |
| ATEX Dust Explosion Protection | IBEXU 17 ATEX 1153 X II (1) D [Ex ia Da] IIIC |
| ATEX Firedamp Explosion Protection | IBEXU 17 ATEX 1153 X I (M1) [Ex ia Ma] I |
| Homologation cULus | E81680 |
| cULus Identification | Class I, Div. 2, Groups A,B,C,D; Class I, Zone 2, AEx/Ex nA 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 any mounting pos. Ta = 60°C See Doc. 9276 6 031 001 3 |
| Certifications | ATEX (IBE), Canada (CSA), China (CQM), USA (UL), IECEx (IBE), SIL (exida) DNV ATEX (EUK), China (CCC) |
Technical Data: Safety
| Parameter | Value |
|---|---|
| Maximum voltage U | 25.1 V |
| Maximum current I (Ex ia) | 188 mA |
| Maximum power P | 1180 mW |
| Maximum external capacitance C. for IIB | 0.83 µF |
| Maximum external inductance L. for IIB | 4 mH |
| Maximum external capacitance C. for IIA | 2.93 µF |
| Maximum external inductance L. for IIA | 7.5 mH |
| Maximum external capacitance C. for IIIC | 0.83 µF |
| Maximum external inductance L. for IIIC | 4 mH |
| Maximum external capacitance C. for I | 2.93 µF |
| Maximum external inductance L. for I | 7.5 mH |
| Internal capacitance | Irrelevant |
| Internal inductance | Irrelevant |
| Maximum technical safety voltage | 253 V AC |
| Limits of intrinsic safety inductance L / capacitance C₀ | Commonly connectable inductance L / capacitance C₀ |
| IIC | L. [mH]: 2 mH, 1 mH, 0.500 mH, 0.100 mH C. [µF]: 0.300 µF, 0.370 µF, 0.460 µF, 0.790 µF |
| IIB | L. [mH]: 5 mH, 1 mH, 0.500 mH, 0.100 mH C. [µF]: 0.510 µF, 0.560 µF, 0.660 µF, 1 µF |
| IIA | L. [mH]: 2 mH, 1 mH, 0.500 mH, 0.100 mH C. [µF]: 0.300 µF, 0.370 µF, 0.460 µF, 0.790 µF |
| IIIC | L. [mH]: 5 mH, 1 mH, 0.500 mH, 0.100 mH C. [µF]: 0.510 µF, 0.560 µF, 0.660 µF, 1 µF |
| Functional Safety | SIL: 3 HFT: 0 SFF: 100% Lambda SD: 0 FIT Lambda SU: 50 FIT Lambda DD: 0 FIT Lambda DU: 0 FIT |
| Electrical Data | Number of channels: 1 Auxiliary power: none Maximum dissipated power: 1.33 W Reverse polarity protection: yes |
| Galvanic separation | Test voltage according to standard: EN IEC 60079-11 |
Technical Data: Galvanic Separation
| Parameter | Value |
|---|---|
| Galvanic separation output Ex i to input | 375 V AC maximum value |
Technical Data: Input
| Parameter | Value |
|---|---|
| Input voltage for ON | 15 - 30 V |
| Input voltage for OFF | 0 - 5 V |
Technical Data: Output
| Parameter | Value |
|---|---|
| Output voltage in open circuit U | 21.9 V |
| Maximum output current I | 58 mA |
| Output resistance R | 133.4 Ω |
| Switching delay ON/OFF | <= 20 ms |
| Switching delay OFF/ON | <= 20 ms |
| Output stabilization time | 20 ms |
| Switching status indication | Yellow LED "STAT" |
Environmental Conditions
| Parameter | Value |
|---|---|
| Ambient temperature | -40 °C ... 60 °C (-40 °F ... +140 °F) |
| Storage temperature | -40 °C ... 80 °C (-40 °F ... +176 °F) |
| Maximum relative humidity | 10 ... 95% |
| Altitude of utilization | < 2000 m |
| Electromagnetic compatibility | Industrial environment according to EN 61326-1 Immunity according to EN 61000-6-2 Radiated spurious emissions according to EN 61000-6-4 |
Mechanical Data
| Parameter | Value |
|---|---|
| Degree of protection (IP) | IP30 |
| Protection (IP) terminals | IP20 |
| Fire resistance (UL 94) | VO |
| Enclosure material | Polyamide |
| Grid dimension | 12.5 mm |
| Width | 12.5 mm |
| Mounting width in inches | 0.49 in |
| Height | 114.5 mm (4.51 in) |
| Length | 116 mm (4.57 in) |
| Weight | 165 g (0.36 lb) |
Mounting / Installation
| Parameter | Value |
|---|---|
| Mounting type | DIN Rail NS35/15, NS35/7.5 |
| Mounting position | Vertical / Horizontal |
| Connection type | Spring terminal |
| Maximum flexible conductor cross-section | 1.5 mm² |
| Minimum flexible conductor cross-section | 0.2 mm² |
| Maximum flexible conductor cross-section AWG | 24 ... 16 |
Dimensional Drawing
Dimensional drawing showing the R. STAHL 9276A isolator. All dimensions are in millimeters with inches in parentheses. The drawing indicates the overall height, width, and depth, as well as mounting dimensions.
Diagram Description:
- Overall dimensions: 114.5 mm (4.51 in) height, 12.5 mm (0.49 in) width, 116 mm (4.57 in) length.
- Mounting rail compatibility: DIN rail NS35/15, NS35/7.5.
- The diagram also shows a series of Ipac series 9260, 9270, 9275, 9276, 9282 with spring terminal.
