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1771-OA Allen-Bradley
Original price
$450.00
-
Original price
$500.00
Original price
$450.00
$450.00
-
$500.00
Current price
$450.00
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The 1771-OA is an Allen-Bradley PLC-5 series discrete AC output module from the 1771 I/O family. It provides eight independent outputs delivering 92-138 V AC at 47-63 Hz, with each channel rated for 1.5 A continuous and up to 4 A surge for short durations. Installed in a 1771 I/O chassis and wired via the 1771-WA field wiring arm, it is used for switching AC loads such as solenoids, indicators, relays, and contactors. Part number 1771-OA integrates monitoring via fluorescent output indicators and a fuse-blown indicator to aid maintenance.
Best Suited For
- Switching solenoid valves or pilot devices at 120 V AC
- Status indicators or audible alarms in PLC-5 systems
- Magnetic contactor control in legacy installations
- Retrofit replacement in PLC-5 1771 I/O chassis
Outputs
8 channels
Output voltage range
92-138 V AC @ 47-63 Hz
Continuous output current per channel
1.5 A
Surge current per channel
4 A for 8.3 ms per 1 s
Power dissipation
1.1-10.7 W
Technical Specifications
I/O & Electrical
Output voltage range
92-138 V AC @ 47-63 Hz
Continuous output current per channel
1.5 A
Maximum module current
6 A
Surge current per channel
4 A for 8.3 ms, repeatable every 1 s
Minimum load current
50 mA @ 120 V AC
On-state voltage drop
2 V at 100 mA
Off-state leakage current
5 mA @ 120 V AC
Signal delay Off→On
1.0 ms
Signal delay On→Off
8.3 ms @ 60 Hz
Communication & Power
Backplane current draw
210 mA @ 5 V DC
Physical & Environmental
Mounting
Rack-mountable in 1771 I/O chassis via 1771-WA wiring arm
