ABB CM-UFD.M31M multifunctional grid feeding monitoring relay with Modbus RTU communication, 24-240 V AC/DC supply, 0-540 V AC measuring range and three changeover relay outputs for renewable energy interface protection.
£935.66
The ABB 1SVR560731R3701, also known as the CM-UFD.M31M, is a multifunctional grid feeding monitoring relay with Modbus RTU communication. It is designed to provide reliable interface protection between renewable energy generation systems and the public electricity grid by continuously monitoring voltage, frequency and grid stability.
Certified for applications in accordance with VDE-AR-N 4105, VDE-AR-N 4110 and VDE-AR-N 4120, the CM-UFD.M31M supervises overvoltage, undervoltage, overfrequency, underfrequency, vector shift and ROCOF (Rate of Change of Frequency). If monitored values move outside configured limits, the relay signals an external decoupling device to disconnect the renewable energy system from the public grid safely.
Featuring a 0-540 V AC phase-to-phase measuring range, 0-312 V AC phase-to-neutral measuring range, 24-240 V AC/DC universal control supply and three changeover relay outputs, the CM-UFD.M31M is ideal for commercial photovoltaic systems, distributed energy generation and industrial grid interface protection panels.
The ABB CM-UFD.M31M continuously measures voltage and frequency on single-phase and three-phase electrical networks. If a loss of mains event or unacceptable grid condition is detected, the relay changes the state of its outputs and signals an external contactor, switch-disconnector or circuit breaker to isolate the renewable energy system until stable operating conditions return.
Its integrated Modbus RTU interface enables remote access to operating status, alarms and measured values, making the relay suitable for integration with PLCs, SCADA systems and ABB Ability™ Energy and Asset Manager platforms.
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| Voltage | 540 V | |
|---|---|---|
| Manufacturer | ABB | |
| Series | CM-UFD | |
| Model | CM-UFD.M31M | |
| Product ID | 1SVR560731R3701 | |
| Product type | Grid feeding monitoring relay | |
| Communication | Modbus RTU | |
| Applicable standards | VDE-AR-N 4105, VDE-AR-N 4110, VDE-AR-N 4120 | |
| Rated control supply | 24-240 V AC/DC | |
| Phase-to-phase measuring range | 0-540 V AC | |
| Phase-to-neutral measuring range | 0-312 V AC | |
| Output contacts | 3 changeover (SPDT) contacts | |
| Mounting type | DIN rail mounting | |
| Terminal type | Screw terminals | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | 90 × 108 × 67 mm | |
| Net weight | approx. 0.31 kg | |
| EAN | 4013614521126 | |
| HS Code | 85364900 |
The CM-UFD.M31M provides interface protection between renewable energy systems and the public electricity grid by monitoring voltage, frequency and grid stability.
Yes. It includes an integrated Modbus RTU communication interface for remote monitoring and integration with PLCs, SCADA systems and energy management platforms.
The relay is certified in accordance with VDE-AR-N 4105, VDE-AR-N 4110 and VDE-AR-N 4120 for renewable energy interface protection.
The relay monitors phase-to-phase voltages from 0 to 540 V AC and phase-to-neutral voltages from 0 to 312 V AC.
The CM-UFD.M31M provides three changeover (SPDT) relay outputs for controlling external decoupling equipment.
ABB CM-UFD grid feeding monitoring relays provide advanced interface protection, intelligent monitoring and dependable communication for modern renewable energy and distributed generation systems.
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