About the 239-RTD-AN
The 239-RTD-AN is a Motor Protection Relay designed by GE Multilin primarily for three-phase AC motors. These RTD (resistance temperature detector) relays provide comprehensive motor protection, even in harsh conditions. As of mid-2021, the 239-RTD-AN series is in a last-time buy status and will soon be unavailable directly from General Electric.
The relay offers a variety of protection features, including:
- Breaker failure protection
- Overload warning protection
- Ground fault protection
- Locked rotor protection
- Undercurrent protection
- Short circuit protection
It's a more compact unit compared to other GE Multilin relays, allowing it to fit most starters. The unit is UL and CSA-approved, ensuring its suitability for various locations. The 239-RTD-AN provides both analog and RTD outputs, with optional conformal coating for these outputs.
User Interface
- The front faceplate features a 40-character LCD display for viewing status messages, fault conditions, and setpoints/values.
- Below the display, there are six LED status indicators.
- The faceplate also includes a dust-tight, splash-proof keypad.
- A protective door is available to cover the keys when not in use.