Allen Bradley 1756-OA16 A Specification
| Operating Voltage | 74–265V AC, 47–63 Hz. |
| Current Ratings | 0.5A per point / 4A per module maximum at 60°C |
| Backplane Power | 400 mA at 5.1V DC / 2 mA at 24V DC |
| Thermal Output | 6.5 Watts / 22.17 BTU/hr maximum. |
| Required Accessories | 1756-TBNH or 1756-TBSH RTB |
| Protection/Isolation | Mechanically fused; 250V continuous isolation |
Allen Bradley 1756-OA16 A Images
Allen Bradley 1756-OA16 A
Allen Bradley 1756-OA16 A
Allen Bradley 1756-OA16 A
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Allen Bradley 1756-OA16 A Details
1756-OA16 A ControlLogix digital AC output module Description
The 1756-OA16 is a 16-point digital AC output module belonging to the Allen-Bradley ControlLogix family. 1756-OA16 A ControlLogix digital AC output module serves as a rugged interface between a ControlLogix controller and high-voltage AC field devices, allowing for the switching of loads such as motors, actuators, and indicators.
As a Series A module, 1756-OA16 A ControlLogix digital AC output module is a foundational component of the 1756 I/O platform, featuring two isolated groups of eight outputs each to handle different power phases or circuits within a single module. 1756-OA16 A ControlLogix digital AC output module is engineered for industrial reliability, incorporating internal mechanical fuses to safeguard the hardware against electrical faults and overcurrents.
Allen Bradley 1756-OA16 A is designed for convenience and safety, utilizing a Removable Terminal Block (RTB) that allows maintenance teams to swap modules without re-wiring the entire system.
Allen Bradley ControlLogix digital AC output module Features
16 Independent AC Outputs: it provides sixteen points of control for AC loads, organized into two groups of eight.
Broad Voltage Range: Allen Bradley ControlLogix digital AC output module supports a wide operating range from 74V to 265V AC for compatibility with various power systems.
Mechanical Fusing: Allen Bradley ControlLogix digital AC output module includes physical fuses to protect internal circuitry from overcurrent conditions.
Diagnostic LED Indicators: Features front-panel status lights for both overall module health and individual point-level activity.
ControlLogix Chassis Integration: Designed for easy hot-swapping and seamless communication across the ControlLogix backplane.
1756-OA16 A ControlLogix digital AC output module Application
Motor Starter Control: Allen Bradley ControlLogix digital AC output module Activate AC contactors and starters for pumps, fans, and conveyors.
Solenoid Valve Actuation: Managing pneumatic or hydraulic valves in process control and manufacturing lines.
Industrial Lighting: Controlling high-voltage AC lighting circuits for factory floors or specialized equipment.
Heating Element Switching: Driving AC-powered heaters or small furnaces via interposing relays or direct connections.
Alarm and Signaling: Operating sirens, beacons, and horns for plant safety and status notification.
Infrastructure Management: Controlling heavy-duty AC loads in water treatment, power distribution, and HVAC systems.
Allen Bradley 1756-OA16 A FAQ
Q1: What is the maximum current capacity per point for the 1756-OA16 A（Allen Bradley ControlLogix digital AC output module）?
A1: Each individual output point of the 1756-OA16 A is rated for a maximum of 0.5A at 60°C, provided the total module current does not exceed 4.0A.Q2: Does the 1756-OA16 A support both 120V and 240V AC applications?
A2: Yes, the 1756-OA16 A features a broad operating voltage range from 74V to 265V AC, making it suitable for both 120V and 240V nominal AC power systems.Q3: How does the 1756-OA16 A handle internal overcurrent protection?
A3: The 1756-OA16 A is equipped with internal mechanical fuses to protect the module’s circuitry from short circuits or excessive current conditions.Q4: What are the backplane power requirements for a 1756-OA16 A module?
A4: The 1756-OA16 A draws 400 mA at 5.1V DC and 2 mA at 24V DC from the ControlLogix backplane to maintain logic and communication functions.Q5: Which Removable Terminal Blocks (RTB) are compatible with the 1756-OA16 A?
A5: The 1756-OA16 A requires either the 1756-TBNH (20-position NEMA clamp) or the 1756-TBSH (20-position spring clamp) terminal block for field wiring.Q6: What is the peak surge current the 1756-OA16 A can withstand?
A6: The 1756-OA16 A is designed to handle a repeatable surge current of up to 5A for a maximum duration of 43 milliseconds per point.
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