GE 269PLUS-100P-120 Motor Management Relay

The GE 269PLUS-100P-120, also cataloged as the 269PLUS-100P-120 Motor Management Relay, operates as a dedicated hardware component for motor protection, thermal monitoring, and fault isolation within 269 PLUS system platforms. It continuously samples 100-ohm platinum RTD temperature inputs and phase currents up to 2 A to trigger protection trips across its 4 output relay contact sets.

Hardware Specifications

Backplane Bus Communication and Deterministic Logic Execution

The motor management relay utilizes high-speed processing logic to calculate real-time thermal capacity models without signal execution delays. High density analog sampling scales 100-ohm platinum RTD resistance curves into precise temperature values while maintaining galvanic isolation across control power networks. Firmware flash compatibility ensures synchronized trip state execution and communication mapping across GE motor control center lineups.

Frequently Asked Questions

Q: What control voltage supply is required to power the 269PLUS-100P-120 relay logic?

A: The relay logic power input accepts an operating range of either 120 VAC or 125 VDC.

Q: How does the module interface with motor winding temperature sensors?

A: The unit integrates dedicated input channels specifically calibrated for 100-ohm platinum RTDs to measure real-time winding and bearing thermal trends.

Field Installation Guidelines

1. De-energize and lock out all 120 VAC / 125 VDC control power feeds and high-voltage motor supply feeds before installation.
2. Secure the relay housing to the panel cutout or DIN rail, ensuring the metal chassis is solidly grounded to the enclosure backplate.
3. Terminate 100-ohm platinum RTD leads using shielded three-wire twisted-pair cabling, grounding the shield braid at the panel entry point only.
4. Wire the 4 output relay contact terminals into the motor starter trip coil and interlocking control circuits.
5. Re-apply control power, configure current scaling ratios, and verify that thermal setpoints match motor nameplate overload ratings.