Allen-Bradley 1771-OW16 Electromechanical Relay Contact Output Module

Allen-Bradley 1771-OW16 Electromechanical Relay Contact Output Module

Installation Information

Preinstallation Considerations：

This module must be used with a 1771-A1B through 1771-A4B or later chassis. It may also be used in a 1771-AM1 or 1771-AM2 chassis. This module does not contain surge limiting circuitry. With properly chosen surge limiting devices, this module can be used to control resistive, capacitive, and inductive loads.

The module’s outputs are arranged in two groups of eight, each output is independently isolated. The first group of outputs are arranged as normally-open contacts, and the second group of outputs are arranged as selectable normally-open or normally-closed contacts.

Reliability：

Varying load conditions can drastically shorten relay life. Operation at the same load conditions, preferably at low loads, delivers long relay life. Do not operate relays at low current or voltage after operating them at high power conditions. Operations at low power first, followed by high power, is acceptable.

Relay Environment：

Relays in this module are not hermetically sealed. Do not use this module in environments with contaminants such as acid, ammonia, nitrogen, and chlorine.

Module Loading：

Both minimum current and minimum voltage specifications are given to assure there is always a good conduction surface between the relay’s contacts. The relays will function at less than minimum specified voltages and currents, but module reliability is not guaranteed.

Exceeding the module’s maximum power ratings wil shorten the life of the relay contacts. Do not operate this module with voltage, current, or power levels higher than the maximum specifications, as given in the Specifications section of this installation instruction.

Technical Specifications