GE Multilin 169PLUS-100N-125VDC motor management relay

About the 169PLUS-100N-125VDC

Boasting a number of features over the non-PLUS base model, GE Multilin’s 169PLUS-100N-125VDC is perfect for motor management, monitoring, and protection. The ‘PLUS’ version of the relay is able to learn additional motor parameters over the base version such as acceleration time, negative sequence current K factor, cooldown rates, motor inrush current, and cooldown rates. That learning is then applied by the device to improve the relay’s protective abilities in an ongoing fashion.

In addition to the aforementioned learning capabilities, the 169PLUS-100N-125VDC also includes the following features that the base model does not include:

• Auxiliary Relay Contacts: These two contacts can be used to trip devices other than the motor starter, such as the main circuit breaker. This provides greater flexibility for the motor system.

• RS422 Communications Port: This port allows the relay to connect to computers,  programmable controllers, and other relays. 

• Spare Input Terminals: Added terminals 44 and 45 allow additional relay contact inputs. They can be set for trip or alarm functions and help further protect the system. A twisted pair of wires should be used with these terminals.

Out of case, the relay has an approximate height of 5 inches, an approximate length of 11 inches, and an approximate width of 7.5 inches. It should be mounted away from strong magnetic fields and high current conductors. Due to the useful status LEDs at the front of the relay, the unit should be mounted so that users can view it easily in order to reference system health and become aware of changes within the motor.