Overview
Specification
| Parameter | Specification |
|---|---|
| Model Number | 269PLUS‑D/O‑111‑100P‑HI |
| Product Type | Motor Management / Protection Relay |
| RTD Type | 100 Ohm platinum (100P) |
| Control Power Supply | 90–300 V DC or 80–265 V AC (HI version) |
| Phase Current Input Range | 0.05 to 12 × phase CT primary amps setpoint |
| Protection Functions | Overload, undercurrent, locked rotor, short circuit, ground fault, phase unbalance/single phasing, thermal overload (stator & bearing), mechanical jam/rapid trip, multiple starts, emergency restart function |
| Overload Settings | 8 standard overload curves + user defined FlexCurve™ |
| RTD Inputs | Programmable RTD inputs for stator, bearing, and ambient temperature monitoring |
| Outputs | Trip relay, alarm relay, two auxiliary relays (configurable contact arrangements) |
| Additional I/O | Digital inputs, analog output (depending on configuration), communication port RS485 Modbus RTU, optional Ethernet module (depending on variant) |
| Dimensions (W×H×D) | 11.40 in × 7.50 in × 16.00 in (≈ 290 × 190 × 406 mm) |
| Weight | 7.75 lb (≈ 3.52 kg) |
| Operating Ambient Temperature | –25 °C to +60 °C (typical) |
| Logging & Diagnostics | Event logging, statistical data, thermal capacity metering, fault history |
FAQ
A: It supports medium‑size three‑phase AC motors with phase current input configurable via CTs.
Q: What protection functions does this relay provide?
A: It protects against overload, undercurrent, locked rotor, short circuit, ground fault, phase unbalance/single phasing, thermal overload, and mechanical jams.
Q: Can I monitor motor temperature and bearings?
A: Yes — the relay accepts RTD temperature inputs for stator, bearing, and ambient temperature monitoring.
Q: Does the relay support remote monitoring or integration with SCADA?
A: Yes — it supports RS485 Modbus RTU communication and can integrate into broader control systems; optional Ethernet module may be available.
Q: Is it easy to replace or service this relay without long downtime?
A: Yes — the draw‑out modular design enables quick removal and replacement, reducing downtime and maintenance effort.
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