ABB CM-SRS.22S Current Monitoring Relay - IP50 Housing
Part Number: 1SVR730841R1500
Quick Summary
CM-SRS.22S current monitoring relay is designed to deliver reliable over- and undercurrent protection for single-phase control circuits in industrial automation. In busy panels, inconsistent protection can cause nuisance trips or missed faults; this device offers adjustable thresholds, hysteresis, and a configurable trip delay to reduce downtime and maintain process continuity. It carries essential certifications such as CE and UKCA markings, UL/CSA safety approvals, and a robust IP50 housing for indoor applications, ensuring compliance and safe operation in harsh environments. With a 220-240 V AC control supply and two SPDT contacts, it integrates seamlessly into ABB CM-SxS family installations, delivering predictable protection and simplified panel wiring, ultimately supporting improved uptime and lower total cost of ownership.
Product Information
Extended Description
1SVR730841R1500 ABB: The CM-SRS.22S 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 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC currents with 3 measuring ranges: 0.3-1.5 A, 1-5 A and 3-15 A and works according to the open-circuit principle. The CM-SRS.22S is configurable for over- or undercurrent monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and the tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers screw connection technology with double-chamber cage connection terminals.
EAN
4016779852357
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-SRS.2P; CM-SRS.2S 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
0.181 kg
Function
Over- or undercurrent monitoring
Measuring Range
0.3 ... 1.5 A | 1 ... 5 A | 3 ... 15 A
Time Range
0 s or 0.1 ... 30 s tripping delay (ON)
Rated Control Supply Voltage (Us)
220 ... 240 V AC
Output
2 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
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 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 0.5 ... 2.5 mm² | Flexible with Ferrule 2x 0.5 ... 1.5 mm² | Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mm² | Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm² | Flexible 1x 0.5 ... 2.5 mm² | Flexible 2x 0.5 ... 1.5 mm² | Rigid 1x 0.5 ... 4 mm² | Rigid 2x 0.5 ... 2.5 mm²
Tightening Torque
0.6 ... 0.8 N·m
Wire Stripping Length
8 mm
Recommended Screw Driver
0.8 x 4 | 4.5 | Pozidriv 1
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 1x 18-14 AWG | Flexible 2x 18-16 AWG | Rigid 1x 20-12 AWG | Rigid 2x 20-14 AWG
Tightening Torque UL/CSA
7.08 in·lb
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
0.203 kg
Package Level 1 EAN
4016779852357
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)
2712317
E-Number (Norway)
4188068
E-Number (Sweden)
3860638
Feature: Measuring range covers 0.3-1.5 A, 1-5 A, and 3-15 A. | Business Impact: Enables precise protection across varying load conditions, reducing mis-trips and enabling selective protection in motor circuits. | Application: Ideal for single-phase loads in fans, pumps, or conveyors where current levels vary during operation. Feature: RMS measuring principle for both DC and AC currents. | Business Impact: Delivers consistent trip behavior across mixed loads, improving reliability and diagnostics. | Application: Essential in mixed-technology panels where DC components coexist with AC loads. Feature: Adjustable hysteresis (3–30% of threshold) and tripping delay (0 s to 30 s). | Business Impact: Minimizes nuisance trips while preserving fast protection for faults, improving system availability. | Application: Commissioning scenarios requiring tailored protection timing in production lines. Feature: 2 c/o SPDT outputs rated up to 4 A at 250 V. | Business Impact: Flexible signaling and interlocking options reduce wiring complexity and enable safer interlocks. | Application: Drive signals, alarms, and process interlocks in control cabinets. Feature: Control supply 220–240 V AC; screw terminals; DIN rail mounting (TH35). | Business Impact: Simplifies installation and retrofit, enabling rapid deployment and easy maintenance. | Application: Panel builders benefit from standard DIN-rail integration and robust terminations. Feature: IP50 housing with documented electrical and mechanical durability. | Business Impact: Enhanced ingress protection and long service life reduce maintenance cycles and replacement costs. | Application: Indoor electrical panels in manufacturing and process environments.
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FAQs
CM-SRS.22S is designed for DIN rail TH35 mounting. Install on a flat section of the rail, tighten mounting screws to specification, and connect wires to the screw terminals using 0.5 to 4 mm² conductor ranges. Verify clearances and secure the device to prevent vibration-induced looseness during operation.
The relay measures 0.3-1.5 A, 1-5 A, and 3-15 A in RMS. Choose a range that comfortably exceeds the normal running current of the protected load while allowing fault detection near the upper limit. For motors, select the highest range that still covers startup inrush without false trips based on your duty cycle.
Yes. The CM-SRS.22S provides over- and undercurrent monitoring with two SPDT outputs, making it well-suited for motor protection in single-phase panels. Its adjustable delay and hysteresis help prevent nuisance trips during startup while ensuring prompt shutdown on genuine faults.
The device carries CE and UKCA declarations, UL/CSA safety approvals (UL 508), CAN/CSA C22.2 No.14, CB certificate, CCC/CE DoC variants, RoHS/REACH compliance, and EAC. This broad certification set supports global deployment and regulatory compliance for industrial control panels.
A sealable transparent cover is available to protect settings from unauthorized changes. The unit supports standard wiring and DIN-rail installation, and ABB provides datasheets and installation manuals to assist commissioning and maintenance, helping sustain reliable protection over the service life of the panel.