CM-SRS.M2S

Name: CM-SRS.M2S
Brand: ABB
SKU: CM-SRS.M2S

The ABB CM-SRS.M2S is a multifunctional current monitoring relay designed for single-phase AC and DC applications. It features adjustable hysteresis, tripping and start-up delays, and three measuring ranges (0.3-1.5A, 1-5A, and 3-15A). Suitable for over- or undercurrent monitoring with 2c/o (SPDT) contacts rated at 250V/4A.

Product ModelCM-SRS.M2S

Material Number1SVR730840R0700

Product ID86103

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Precision MonitoringThe CM-SRS.M2S provides accurate current monitoring with a RMS measuring principle, ensuring reliable operation in various applications.
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2. Adjustable HysteresisCustomize the hysteresis range from 3 to 30% of the threshold value to suit specific monitoring needs.
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3. Flexible Delay OptionsAdjust the tripping delay and start-up delay from instantaneous to 30 seconds, offering flexibility in monitoring scenarios.
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4. Multi-Range CapabilityMonitor currents in three distinct ranges: 0.3-1.5A, 1-5A, and 3-15A, making it versatile for different applications.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

22.5 mm

Product Net Height

85.6 mm

Product Net Depth / Length

103.7 mm

Product Net Weight

0.155 kg

Function

Over- or undercurrent monitoring

Measuring Range

0.3 ... 1.5 A 1 ... 5 A 3 ... 15 A

5. Durable ConstructionBuilt with robust screw connection technology and double-chamber cage connection terminals, ensuring long-lasting performance in harsh environments.

6. Versatile ApplicationSuitable for both over- and undercurrent monitoring in single-phase AC and DC systems, making it a versatile tool for various industrial applications.

7. Easy InstallationDesigned for easy mounting on DIN rail, simplifying the installation process and reducing setup time.

8. High ReliabilityCompliant with international standards such as UL/CSA and CE, ensuring high reliability and safety in operation.

9. Customizable SettingsOffers a sealable transparent cover for protection against unauthorized changes, allowing for customizable settings to meet specific requirements.

10. Comprehensive ProtectionFeatures a degree of protection (IP50) and overvoltage category, providing comprehensive protection against environmental factors and electrical surges.

Time Range

0 s or 0.1 ... 30 s start-up delay 0 s or 0.1 ... 30 s tripping delay (ON)

Rated Control Supply Voltage (Us)

24 ... 240 V AC/DC

Output

2 c/o (SPDT) contacts; operating principle selectable

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

Short-Circuit Protective Devices

Output Circuit NO - F Type Fuses 10 A

Electrical Durability

AC-12 100000 cycle

Mechanical Durability

30000000 cycle

Connecting Capacity

Flexible with Ferrule 1x 0.5 ... 2.5 mmÂ² Flexible with Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mmÂ² Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible 1x 0.5 ... 2.5 mmÂ² Flexible 2x 0.5 ... 1.5 mmÂ² Rigid 1x 0.5 ... 4 mmÂ² Rigid 2x 0.5 ... 2.5 mmÂ²

Tightening Torque

0.6 ... 0.8 NÂ·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 inÂ·lb

Pilot Duty UL/CSA

B300

Flammability According to UL94

V-0

Ambient Air Temperature

Operation -20 ... +60 Â°C Storage -40 ... +85 Â°C

Maximum Operating Altitude Permissible

Without Derating 2000 m

Object Classification Code

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)

2712320

E-Number (Norway)

4188072

E-Number (Sweden)

3860630

Manufacturer ID

1SVR730840R0700