Allen-Bradley 1771-OW Selectable Relay Output Module
$123.00
$320.00
Description
Allen-Bradley 1771-OW Selectable Relay Output Module
The Allen-Bradley 1771-OW (1771-OW Selectable Relay Output Module) operates as a dedicated hardware component for relay contact switching within the PLC-5 1771 I/O system. The module provides eight selectable relay outputs with configurable normally open or normally closed contact operation for AC and DC field circuits.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1771-OW |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 1.15 lbs |
| Power Consumption | 3.3-3.7 W |
| Product Type | Relay Output Modules |
| Series | 1771 Product Bulletin / PLC-5 1771 I/O Series |
| Output Channels | 8 relay contact outputs |
| Output Configuration | 4 groups of 2 channels |
| Contact Form | Selectable Normally Open (N.O.) / Normally Closed (N.C.) |
| Default Configuration | Normally Open (N.O.) |
| AC Operating Voltage | 24-138 VAC RMS |
| DC Operating Voltage | 24-125 VDC |
| Output Current Rating per Channel | 1.0 A |
| Minimum Contact Load | AC: 10 mA at 24 V / DC: 10 mA at 24 V |
| Backplane Current | 700 mA |
| Thermal Dissipation | 11.3-12.7 BTU/hr |
| Field Wiring Arm | Cat. No. 1771-WD |
| Wiring Arm | 1771-WH |
| Wiring Arm Screw Torque | 7-9 inch-pounds |
| Signal Delay (AC Off) | 45 +/-15 ms typical |
| Signal Delay (DC Off) | 50 ms typical |
| Protection Coating | Conformal coating |
| Mounting | Rack mountable |
PLC-5 Deterministic Relay Output Control Characteristics
The 1771-OW operates within the Allen-Bradley PLC-5 1771 I/O architecture and exchanges control data through the chassis backplane interface. The module provides I/O density scaling through eight relay output points arranged in four independent groups of two channels.
The relay output design supports configurable contact orientation, allowing each output channel to operate as Normally Open or Normally Closed according to application requirements. The module maintains PLC-5 deterministic output execution through rack-based addressing and backplane communication while providing electrical separation between relay contacts and the controller logic interface.
Frequently Asked Questions
Q: What contact configurations are supported by the 1771-OW module?
A: Each relay output channel can be configured as Normally Open (N.O.) or Normally Closed (N.C.), with Normally Open as the default configuration.
Q: How many relay outputs are available on the 1771-OW?
A: The module provides eight relay contact output channels arranged as four groups of two channels.
Q: What field wiring interface is used with the module?
A: The module uses the Cat. No. 1771-WD field wiring arm and is installed in a compatible 1771 I/O chassis.
Field Installation Guidelines
Install the 1771-OW module in a compatible 1771 I/O chassis using the specified keying positions and field wiring arm. Verify relay contact configuration before connecting external AC or DC field circuits.
Use wiring methods suitable for relay switching applications and maintain separation between relay output conductors and low-level analog or communication wiring. Apply grounding practices according to the control cabinet design standard when shielded cables are used.
Confirm contact voltage, load current, and contact orientation before energizing the module. Ensure connected loads remain within the specified relay contact electrical ratings.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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