Product Description
Allen-Bradley 1715-OB8DE Digital Output Module
The Allen-Bradley 1715-OB8DE is a digital output module designed for use in industrial automation systems. It offers reliable performance and compliance with rigorous environmental and safety standards.
Technical Specifications
Electrical Specifications
-
Operating Voltage & Current:
- Backplane: 165 mA @ 18–32V DC
- I/O Channels: 0.5 A per channel @ 18–32V DC
-
Voltage Slew Rate Limits:
-
Field Voltage: 150 V/s (exempt under certain conditions)
-
De-energized Output Voltage: 12 V/ms (subject to safety diagnostics)
-
Energized Output Current: 0.9 A/ms
-
Power Dissipation:
- System: 3.0 W max
- Field Loop: 0.17 W per field loop
Isolation and Protection
| Feature |
Specification |
| Isolation Voltage |
50V (continuous), basic insulation type, I/O ports to backplane |
| Dielectric Strength |
Type tested at 500V AC for 60 seconds |
| I/O Port Isolation |
No isolation between individual I/O ports |
Physical and Mechanical Specifications
-
Weight:
- 1715-OB8DE Module: 290 g (10.23 oz)
- I/O Base Unit: 133 g (5 oz)
- Termination Assembly: 133 g (5 oz) – 260 g (10 oz)
-
Dimensions (H x W x D): 166 x 42 x 118 mm (6.5 x 1.625 x 4.625 in.)
-
Wire Size (Termination Assemblies 1715-TASOB8DE & 1715-TADOB8DE):
- Single 0.75–1.5 mm² (18–16 AWG) solid or stranded copper wire
- Rated at 85 °C (185 °F) or greater
-
Wiring Category: Category 2 (for signal ports)
Fuses and Power Ratings
| Component |
Specification |
| Fuse Type (I/O) |
10 A, 125V, Type F |
| I/O Power Source |
5 A max, 32V DC min |
| Pilot Duty Rating |
16VA, 1.5A inrush |
Environmental Ratings
| Parameter |
Specification |
| Operating Temperature |
-25 to 60 °C (-13 to 140 °F) |
| Surrounding Air Temperature (Max) |
70 °C (158 °F) |
| Non-Operating Temperature |
-40 to 85 °C (-40 to 185 °F) |
| Relative Humidity |
10–95% non-condensing |
| Vibration Resistance |
2 g @ 10–500 Hz |
| Shock Resistance (Operating) |
DIN Rail: 25 g, Panel Mount: 30 g |
| Shock Resistance (Non-Operating) |
Installed: 30 g, Uninstalled: 50 g (with slot fillers) |
| Enclosure Type |
None (open-style) |
Electromagnetic Compatibility (EMC) Compliance
-
Emissions:
- CISPR 11 (IEC 61000-6-4) Class A
-
Immunity to Electrostatic Discharges (ESD):
-
IEC 61000-4-2: ±6 kV (contact), ±8 kV (air)
-
Radiated RF Immunity:
-
IEC 61000-4-3:
- 20V/m from 80–1000 MHz (1 kHz sine-wave 80% AM)
- 10V/m from 1000–2000 MHz (1 kHz sine-wave 80% AM)
- 10V/m at 900 MHz & 1890 MHz (200 Hz, 50% Pulse 100% AM)
- 3V/m from 2000–2700 MHz (1 kHz sine-wave 80% AM)
-
Electrical Fast Transient/Burst (EFT/B) Immunity:
-
IEC 61000-4-4: ±2 kV @ 5 kHz on signal ports
-
Surge Transient Immunity:
-
IEC 61000-4-5: ±1 kV line-line (DM), ±2 kV line-earth (CM) on signal ports
-
Conducted RF Immunity:
-
IEC 61000-4-6: 10V rms from 150 kHz–80 MHz (1 kHz sine-wave 80% AM)
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