ABB 1SVR560730R3402 CM-UFD.M33 grid feeding monitoring relay with 3 change-over contacts, voltage and frequency monitoring, RoCoF and vector shift detection for renewable energy interface protection.
£727.03
The ABB 1SVR560730R3402, also known as CM-UFD.M33, is a multifunctional grid feeding monitoring relay designed to provide interface protection between renewable energy systems and the public grid. As part of ABB’s CM-UFD range, it monitors key voltage and frequency parameters to help maintain grid stability and support safe disconnection when abnormal supply conditions are detected.
This relay is suitable for renewable energy installations such as solar PV, wind and distributed generation systems where reliable grid monitoring is required. It provides monitoring functions including overvoltage, undervoltage, overfrequency, underfrequency, rate of change of frequency and vector shift detection.
With a measuring range of L-L 0–550 V AC and L-N 0–317 V AC, the CM-UFD.M33 is suitable for a wide range of single-phase and three-phase grid connection applications. Its 3 change-over contact outputs allow signalling to external decoupling devices such as contactors, switch-disconnectors or circuit breakers.
Grid feeding monitoring relays such as the ABB CM-UFD.M33 are used to monitor the quality and stability of the public grid when renewable energy systems are feeding power into it. If voltage or frequency values move outside permitted limits, the relay changes state and can signal an external disconnection device to separate the generation system from the grid.
The ABB 1SVR560730R3402 supports reliable grid protection by combining multiple monitoring functions in one compact DIN rail device. It is particularly useful in systems where accurate monitoring, fast response and dependable signalling are required for safe renewable energy connection.
| Voltage | 550 V |
|---|---|
| Manufacturer | ABB |
| Series | CM-UFD Grid Feeding Monitoring Relays |
| Model | CM-UFD.M33 |
| Product type | Grid feeding monitoring relay |
| Product ID | 1SVR560730R3402 |
| EAN | 4013614492921 |
| Contact configuration | 3 change-over contacts |
| Measuring voltage L-L | 0–550 V AC |
| Measuring voltage L-N | 0–317 V AC |
| Supply voltage | 24–240 V AC/DC |
| Monitoring functions | Voltage, frequency, RoCoF and vector shift |
| Mounting type | DIN rail mounting |
| Terminal type | Screw terminals |
| Protection rating | IP20 terminals / IP50 housing |
| Operating temperature | -20 to +60 °C |
| Package dimensions | approx. 121 × 71 × 99 mm |
| Package weight | approx. 0.36 kg |
| HS Code | 85364900 |
| Country of Manufacture | Germany |
The ABB 1SVR560730R3402 is used for monitoring grid voltage and frequency in renewable energy systems connected to the public grid.
The model number is CM-UFD.M33.
It monitors voltage, frequency, rate of change of frequency and vector shift to help detect abnormal grid or loss-of-mains conditions.
The relay has 3 change-over contacts for signalling external switching or decoupling equipment.
It is typically installed on a DIN rail inside electrical control panels used for renewable energy and grid interface protection systems.
ABB CM-UFD grid feeding monitoring relays are trusted by electrical engineers, renewable energy installers and panel builders for dependable interface protection and grid monitoring in low-voltage power systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...