ABB 1SVR740841R1200 Current monitoring relay - UL/CE

Part Number: 1SVR740841R1200
Manufacturer
ABB
Part number
1SVR740841R1200

Quick Summary

Current monitoring relay is a single-phase device that detects over- or undercurrent in 220-240 V AC systems, protecting motors, sensors, and control circuits in industrial automation. This ABB CM-SRS.11P delivers a 1 c/o SPDT output with adjustable hysteresis, reducing nuisance trips while enabling precise protection for critical loads. A broad suite of certifications, including CE, UL/CSA, and UKCA, supports global deployment and compliance across markets. The device uses RMS current measurement over three ranges and works with DC and AC loads, delivering predictable protection in control panels and machine interfaces while simplifying commissioning and maintenance for OEMs and maintenance teams.

Product Information

Extended Description

1SVR740841R1200 ABB: The CM-SRS.11P is a single-functional current monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges: 3-30 mA, 10-100 mA and 0.1-1 A and works according to the open-circuit principle. The CM-SRS.11P is configurable for over- or undercurrent monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.
EAN
4016779852562
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-SRS.1P; CM-SRS.1S Current monitoring relays, single-phase AC/DC
Instructions and Manuals
Instruction Sheet / Manual - CM-SxS Single-phase current monitoring relays | Installation instructions - CM-SxS Single-phase current monitoring relays
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
22.5 mm
Product Net Height
85.6 mm
Product Net Depth / Length
103.7 mm
Product Net Weight
0.153 kg
Function
Over- or undercurrent monitoring
Measuring Range
3 ... 30 mA | 10 ... 100 mA | 0.1 ... 1 A
Rated Control Supply Voltage (Us)
220 ... 240 V AC
Output
1 c/o (SPDT) contact
Terminal Type
Screwless 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
Rated Impulse Withstand Voltage (Uimp)
Measuring Circuit / Output Circuit 6 kV | Output Circuit 1 / Output Circuit 2 4 kV | Supply Circuit / Measuring Circuit 6 kV | Supply Circuit / Output Circuit 4 kV
Rated Insulation Voltage (Ui)
Measuring Circuit / Output Circuit 600 V | Output Circuit 1 / Output Circuit 2 250 V | Supply Circuit / Measuring Circuit 600 V | Supply Circuit / Output Circuit 250 V
Degree of Protection
Housing IP50 | Terminals IP20
Overvoltage Category
III
Pollution Degree
3
Short-Circuit Protective Devices
Output Circuit NC - F Type Fuses 6 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 2x 0.5 ... 1.5 mm² | Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm² | Flexible 2x 0.5 ... 1.5 mm² | Rigid 2x 0.5 ... 1.5 mm²
Wire Stripping Length
8 mm
Mounting Position
1 ... 6
Mounting on DIN Rail
TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 | TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715
Standards
CAN/CSA C22.2 No.14 | IEC/EN 63000 | IEC/EN 60255-27 | IEC/EN 61000-6-2 | IEC/EN 61000-6-3 | UL 508
Maximum Operating Voltage UL/CSA
Output Circuit 300 V AC
Contact Rating UL/CSA
B300
Connecting Capacity UL/CSA
Flexible 2x 18-16 AWG | Rigid 2x 20-16 AWG
Pilot Duty UL/CSA
B300
Flammability According to UL94
V-0
Ambient Air Temperature
Operation -20 ... +60 °C | Storage -40 ... +85 °C
Maximum Operating Altitude Permissible
Without Derating 2000 m
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
REACH Declaration
REACh Info for Electronic Relays and Controls
RoHS Information
RoHS Declaration of conformity for Electronic Relays and Controls
RoHS Status
Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
Toxic Substances Control Act - TSCA
Toxic Substances Control Act (TSCA) declaration for Electronic Relays and Controls
CB Certificate
CB_DK-28255-UL
CQC Certificate
CQC Certificate, Relays, CM-SRS.., CM-SFS.., CM-ESS..,CM-EFS.., CM-TCS.., Made in Germany
cULus Certificate
cULus508_20120203-E140448
Declaration of Conformity - CCC
CCC Certificate, Relays, CM-SRS.., CM-SFS.., CM-ESS..,CM-EFS.., CM-TCS.., Made in Germany
Declaration of Conformity - CE
EU Declaration of Conformity - CM-ExS.xxx, CM-SxS.xxx Single-phase current and voltage monitoring relays
Declaration of Conformity - UKCA
UK Declaration of Conformity - CM-ExS.xxx, CM-SxS.xxx Single-phase current and voltage monitoring relays
DNV GL Certificate
DNV Certificate - Current monitoring relays CM-SFS.x and CM-SRS.x with screw or push-in terminals
EAC Certificate
EAC Certificate - Measuring and monitoring relays CM-xxS.xxx and CM-xxN.xxx range in the new housing
Package Level 1 Units
box 1 piece
Package Level 1 Width
97 mm
Package Level 1 Depth / Length
30 mm
Package Level 1 Height
109 mm
Package Level 1 Gross Weight
0.175 kg
Package Level 1 EAN
4016779852562
Object Classification Code
B
ETIM 7
EC001440 - Current monitoring relay
ETIM 8
EC001440 - Current monitoring relay
ETIM 9
EC001440 - Current monitoring relay
eClass
V11.0 : 27371802
UNSPSC
39122332
E-Number (Finland)
2712302
E-Number (Norway)
4188051
E-Number (Sweden)
3860653
Feature → Business Impact → Application: RMS current measurement for DC and AC loads provides accurate fault indication and minimizes false trips, improving reliability of motors and drives in automation panels. Application: motor protection in manufacturing lines and assembly cells. Feature → Three measuring ranges (3-30 mA, 10-100 mA, 0.1-1 A) enables flexible sensing of diverse loads, reducing the need for multiple devices and cutting spare parts costs. Application: universal sensing for mixed-load cabinets. Feature → 1 c/o SPDT output supports simple control logic, enabling alarms, interlocks, or shutdown signals without additional interfaces. Application: panel-level protection schemes. Feature → 220-240 V AC control supply aligns with standard control circuits, improving compatibility with existing architectures. Application: retrofit projects and OEM equipment. Feature → Easy Connect technology with push-in terminals delivers maintenance-free wiring and faster installation, reducing commissioning time. Application: field service and new builds. Feature → DIN rail mounting TH35 and robust housing (IP50) suit industrial environments, ensuring reliable operation in compact enclosures. Application: machine building and control cabinets. Feature → Adjustable hysteresis (3–30% of threshold) allows tuning to prevent chattering while maintaining sensitivity. Application: precise protection in variable-load processes.

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FAQs

The CM-SRS.11P is designed for DIN rail mounting on TH35-15 or TH35-7.5 standards. It features screwless push-in terminals for quick wiring and a compact 22.5 mm width with a height of 85.6 mm and depth of 103.7 mm, enabling clean, space-efficient panel layouts and faster commissioning in new builds or upgrades.
It monitors currents using RMS measurement across three ranges: 3-30 mA, 10-100 mA, and 0.1-1 A, for both AC and DC loads. The device provides a single output contact: 1 c/o (SPDT) rated for up to 250 V and 4 A, enabling straightforward control logic like alarms or interlocks.
Yes. The relay uses RMS measuring principle suitable for both AC and DC currents, supporting a wide variety of loads in single-phase circuits. With adjustable hysteresis and a SPDT output, it can be integrated into mixed panels to deliver reliable monitoring without needing separate transducers.
The CM-SRS.11P family holds CE, UL/CSA, CAN/CSA, UKCA, CCC, CB, cULus, and DNV GL certifications, plus RoHS and REACH declarations. It also aligns with IEC/EN standards for electrical durability and environmental testing, ensuring suitability for international OEMs and end users.
Electrical durability is rated at AC-12 100,000 cycles, with mechanical durability of up to 30,000,000 cycles. The housing provides IP50 protection with IP20 at terminals, operating from -20 to +60 °C and up to 2,000 m altitude, making it robust for demanding industrial environments.