Product Description
Manufacturer: Allen-Bradley
Model/Part Number: 1794-OA16
Description: FlexLogix FLEX I/O AC Digital Output Module
Key Attributes:
| Attribute | Value |
|---|---|
| Number of Outputs | 16, nonisolated |
| Recommended Terminal Base | 1794-TBN, 1794-TBNF, 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBKD, 1794-TBNK, 1794-TBNFK, 1794-TB3K, 1794-TB3SK |
| Mounting | See derating curve |
| Output Voltage Range (Min) | 74V AC |
| Output Voltage Range (Nominal) | 120V AC |
| Output Voltage Range (Max) | 132V AC |
| Output Current Rating | 4.0 A (16 outputs @ 250 mA) |
| On-State Current (Min) | 5.0 mA per output |
| On-State Current (Max) | 500 mA per output @ 55 °C (131 °F) |
| On-State Voltage Drop (Max) | 1.5V @ 0.5 A |
| Surge Current | 7 A for 40 ms, repeatable every 8 seconds |
| Off-State Leakage Current (Max) | 2.25 mA |
| Isolation Voltage | 120V (continuous), field to backplane |
| Tested | 1250V AC for 60 s |
| Isolation Between Channels | None |
| Output Signal Delays | Off to On: 1/2 cycle max On to Off: 1/2 cycle max |
| Flexbus Current | 80 mA @ 5V DC |
| Power Dissipation (Max) | 4.7 W @ 0.5 A |
| Thermal Dissipation (Max) | 16.1 BTU/hr @ 0.5 A |
| Fusing | 2.5 A, 150V AC normal blow, MQ2 |
General Specifications:
| Attribute | Value |
|---|---|
| Terminal Base Screw Torque | Determined by the installed terminal base |
| Dimensions | 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.) |
| Weight (Approx.) | 96 g (3.38 oz) |
| Indicators (Field Side Indication) | 16 yellow status indicators |
| External AC Power Supply Voltage | 120V AC |
| External AC Power Voltage Range | 74V – 132V AC |
| Keyswitch Position | 8 |
| Pilot Duty Rating | 5 A Inrush |
| North American Temperature Code | T4 |
| Enclosure Type Rating | None (open-style) |
| Wire Size | Determined by the installed terminal base |
| Wiring Category | 2 (on signal ports) |
Environmental Specifications:
| Attribute | Value |
|---|---|
| Operating Temperature | -20…+55 °C (-4…+131 °F) – 1794-OA8, 1794-OA8I 0 °C < Ta < +55 °C (+32 °F < Ta < +131 °F) – 1794-OA16, 1794-OA16K |
| Temperature, Surrounding Air, Max | 55 °C (131 °F) |
| Temperature, Nonoperating | -40…+85 °C (-40…+185 °F) |
| Relative Humidity | 5…95% noncondensing |
| Vibration (Operating) | 5 g @ 10...500 Hz |
| Shock (Operating) | 30 g |
| Shock (Nonoperating) | 50 g |
| Emissions | IEC 61000-6-4 |
| ESD Immunity | IEC 61000-4-2: 6 kV contact discharges 8 kV air discharges |
| Radiated RF Immunity | IEC 61000-4-3: 10V/m with 1 kHz sine-wave 80% AM from 80…2000 MHz |
| EFT/B Immunity | IEC 61000-4-4: ±2 kV @ 5 kHz on power ports ±2 kV @ 5 kHz on signal ports |
| Surge Transient Immunity | IEC 61000-4-5: ±1 kV line-line (DM) and ±2 kV line-earth (CM) on signal ports |
| Conducted RF Immunity | IEC 61000-4-6: 10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz |