ABB CM-UFD.M31M Grid Feeding Relay - VDE-AR-N 4105
Part Number: 1SVR560731R3701
Quick Summary
ABB CM-UFD.M31M grid feeding monitoring relay protects renewables interfacing with the public grid. It safeguards grid stability by automatically disconnecting the renewable source when grid parameters diverge and reconnecting once stable. This device carries key certifications such as VDE-AR-N 4105/4110/4120, CE, UKCA, and TÜV attestations to support regulatory compliance and safe operation. With Modbus RTU communication and seamless DIN rail mounting, it integrates smoothly into ABB Ability Energy and Asset Manager ecosystems, delivering business value through improved reliability, visibility, and control in grid-connected energy installations. Real-world deployment benefits include reduced outage risk, faster fault isolation, and scalable automation for solar, wind, and microgrid projects.
Product Information
Extended Description
1SVR560731R3701 ABB: The CM-UFD.M31M is a multi-functional grid feeding monitoring relay with Modbus RTU communication interface, which provides interface protection and is to be installed between a renewable energy system and the public grid. This innovative relay guarantees grid stability and seeks to prevent blackouts. If the voltage or frequency magnitudes of the public grid are outside the permited range, then the device changes status and acts to disconnect the renewable energy system from the public grid by sending a signal to a decoupling unit (e.g. contactor, switch disconnector or circuit breaker). As soon as the grid is stable again, the system may automatically reconnected. The CM-UFD.M31M provides different monitoring functions including over-/undervoltage and over-/underfrequency as well as rate of change of frequency (RoCoF) and vector shift monitoring functions, which detect a loss of mains event. This grid feed monitoring relay is certified in accordance to This grid feed monitoring relay is certified in accordance to VDE-AR-N 4105, VDE-AR-N 4110 & VDE-AR-N 4120 and may be connected to the state-of-the-art cloud solution, ABB Ability Energy and Asset Manager.
EAN
4013614521126
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-UFD.M31 and CM-UFD.M31M Grid feeding monitoring relay acc. to VDE-AR-N 4105, VDE-AR-N 4110 & VDE-AR-N 4120
Instructions and Manuals
Instruction Sheet / Manual- CM-UFD.M31(M) Grid feeding monitoring relay
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
108 mm
Product Net Height
90 mm
Product Net Depth / Length
67 mm
Product Net Weight
0.312 kg
Function
Over- and undervoltage monitoring | Interrupted neutral monitoring | Over- and underfrequency monitoring | 10 minutes average value monitoring | Vector shift detection | ROCOF monitoring
Measuring Range
0 ... 540 V AC
Rated Control Supply Voltage (Us)
24 ... 240 V AC/DC
Output
3 c/o (SPDT) contacts
Terminal Type
Screw Terminals
Rated Operational Current AC-12 (Ie)
(230 V) 4 A
Rated Operational Current AC-15 (Ie)
(230 V) 3 A
Rated Operational Current DC-12 (Ie)
(24 V) 4 A
Rated Operational Current DC-13 (Ie)
(24 V) 2 A
Minimum Switching Capacity
24 V | 10 mA
Degree of Protection
Housing IP20 | Terminals IP20
Pollution Degree
3
Short-Circuit Protective Devices
Output Circuit NC - F Type Fuses 10 A | Output Circuit NO - F Type Fuses 10 A
Electrical Durability
AC-12 100000 cycle
Mechanical Durability
Nr. Operations 30000000 cycle
Connecting Capacity
Flexible with Ferrule 1x 0.25 ... 4.0 mm² | Flexible with Ferrule 2x 0.25 ... 0.75 mm² | Flexible with Insulated Ferrule 1x 0.25 ... 4.0 mm² | Flexible with Insulated Ferrule 2x 0.25 ... 0.75 mm² | Flexible 1x 0.2 ... 4.0 mm² | Flexible 2x 0.2 ... 1.5 mm² | Rigid 1x 0.2 ... 6.0 mm² | Rigid 2x 0.2 ... 1.5 mm²
Tightening Torque
0.5 ... 0.6 N·m
Wire Stripping Length
8 mm
Mounting Position
1 ... 6
Mounting on DIN Rail
TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 | TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715
Standards
VDE-AR-N 4105 | VDE-AR-N 4110 | VDE-AR-N 4120
Connecting Capacity UL/CSA
Flexible with Ferrule 1x 24-12 AWG | Flexible with Ferrule 2x 24-18 AWG | Flexible with Insulated Ferrule 1x 24-12 AWG | Flexible with Insulated Ferrule 2x 24-18 AWG | Flexible 1x 24-12 AWG | Flexible 2x 24-16 AWG | Rigid 1x 24-10 AWG | Rigid 2x 24-16 AWG
Tightening Torque UL/CSA
4.4 ... 5.3 in·lb
Ambient Air Temperature
Operation -20 ... +60 °C | Storage -25 ... +50 °C
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
REACH Declaration
REACh Info for Electronic Relays and Controls
RoHS Information
EU Declaration of Conformity - CM-UFD.M22M, CM-UFD.M31M, CM-UFD.M34M Grid feeding monitoring relays
RoHS Status
Following EU Directive 2011/65/EU
cULus Certificate
cULus508_20170830-E140448
Declaration of Conformity - CE
EU Declaration of Conformity - CM-UFD.M22M, CM-UFD.M31M, CM-UFD.M34M Grid feeding monitoring relays
Declaration of Conformity - UKCA
UK Declaration of Conformity - CM-UFD.M22M, CM-UFD.M31M and CM-UFD.M34M Grid feeding monitoring relays
TÜV Certificate
TUEV Attestation of Conformity to VDE AR N 4110 & VDE AR N 4120 - CM-UFD.M31, CM-UFD.M31M Grid feeding monitoring relay | TUEV Compliance Document (BDEW-Technical Guideline / A1: 2013; FGW-Technical Guideline Part 3: 2013) - CM-UFD.M31 Grid feeding monitoring relay | TUEV_AoC_44254-53768-01 | TUEV Compliance Document (BDEW Guideline) - CM-UFD.M31M Grid feeding monitoring relay
Package Level 1 Units
box 1 piece
Package Level 1 Width
121 mm
Package Level 1 Depth / Length
71 mm
Package Level 1 Height
99 mm
Package Level 1 Gross Weight
0.365 kg
Package Level 1 EAN
4013614521126
Object Classification Code
B
ETIM 7
EC001438 - Voltage monitoring relay
ETIM 8
EC001438 - Voltage monitoring relay
ETIM 9
EC001438 - Voltage monitoring relay
eClass
V11.0 : 27371801
Feature: Comprehensive grid monitoring (over-/undervoltage, over-/underfrequency, RoCoF, vector shift) is paired with an interrupted-neutral monitoring function. Business Impact: enhances grid stability and reduces blackout risk by timely isolation of the renewable source during disturbances, then automatic reconnection when conditions normalize. Application: ideal for solar and wind interfaces to the public grid, including microgrids. Feature: 3 c/o (SPDT) outputs with robust switching capability (230 V AC, 4 A) delivers direct control of decoupling devices. Business Impact: simplifies wiring and minimizes external logic requirements, cutting installation time and potential fault points. Application: enables immediate tripping or isolation of a contactor or switch disconnector in response to grid events. Feature: Flexible supply and rugged installation basics (Rated Control Supply Voltage 24–240 V AC/DC; IP20 enclosure; DIN rail mounting TH35-7.5/TH35-15). Business Impact: reduces power supply sourcing complexity and supports compact, space-conscious panel design. Application: easy retrofit into existing panels with standard DIN rails and common control voltages. Feature: Durable electrical and mechanical design (AC-12 100,000 cycles; mechanical durability 30,000,000 cycles). Business Impact: lowers maintenance costs and extends service life, improving total cost of ownership for utility-scale and commercial PV systems. Application: long-term reliability in demanding electrical environments. Feature: Compliance and global applicability (VDE-AR-N 4105/4110/4120, CE, UKCA, UL/CSA options; RoHS). Business Impact: helps meet regional standards and procurement requirements, accelerating project approvals and reducing risk. Application: suitable for European and North American integrations, with cloud-ready ABB Ability connections.
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FAQs
The CM-UFD.M31M is designed for TH35 mounting on standard DIN rails (TH35-7.5 and TH35-15). Install with the device oriented to allow proper access to screw terminals, tighten to 0.5–0.6 N·m, and ensure 8 mm wire stripping. Use the listed flexible or rigid conductor ranges to connect supply, monitoring inputs, and the 3 SPDT outputs for the decoupling device.
Measuring range covers 0 to 540 V AC for grid monitoring. The device provides 3 change-over (SPDT) contacts with a minimum switching capacity of 24 V at 10 mA, suitable for directly driving decoupling equipment. Control supply voltage supports 24–240 V AC/DC, enabling diverse installation scenarios.
Yes. The CM-UFD.M31M is certified to VDE-AR-N 4105, 4110 and 4120, ensuring grid connection and protective behavior align with European grid codes. Additional CE, UKCA, and TÜV attestations support regulatory compliance, while RoHS keeps material restrictions in check for reliable, safe operation in renewable energy installations.
Modbus RTU provides a straightforward, widely supported communications link between the CM-UFD.M31M and supervisory or energy management systems. It enables status monitoring, event reporting, and commissioning data retrieval, reducing commissioning time and enabling remote diagnostics within ABB Ability ecosystems.
The CM-UFD.M31M delivers AC-12 durability for up to 100,000 cycles and mechanical durability of about 30,000,000 cycles. It operates from -20 to +60 C, with IP20-rated housing and terminals, making it robust for panel installations and versatile in harsh electrical environments.