ABB 1SVR730840R0300 Current Monitoring Relay - CE/UL IP50
Part Number: 1SVR730840R0300
Quick Summary
The ABB CM-SRS.12S current monitoring relay provides reliable over- and undercurrent protection for single‑phase control circuits in automation panels. This helps engineers avoid nuisance trips and protect motors, contactors, and sensors without sacrificing uptime. The device complies with CE conformity, UL/CSA approvals, and UKCA markings, and it features IP50 housing for rugged panel mounting in industrial environments. With a 24-240 V AC/DC control supply and screw-terminal connections for easy wiring, it reduces panel complexity. Designed for DIN rail installation, the CM-SRS.12S delivers repeatable thresholds and adjustable hysteresis, supporting safer, more efficient machine operation and simplified compliance documentation.
Product Information
Extended Description
1SVR730840R0300 ABB: The CM-SRS.12S 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 24 - 240 V AC / DC 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: 0.3-1.5 A, 1-5 A and 3-15 A and works according to the open-circuit principle. The CM-SRS.12S 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 screw connection technology with double-chamber cage connection terminals.
EAN
4016779852234
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
0.137 kg
Function
Over- or undercurrent monitoring
Measuring Range
0.3 ... 1.5 A | 1 ... 5 A | 3 ... 15 A
Rated Control Supply Voltage (Us)
24 ... 240 V AC/DC
Output
1 c/o (SPDT) contact
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 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 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
0.159 kg
Package Level 1 EAN
4016779852234
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)
2712306
E-Number (Norway)
4188052
E-Number (Sweden)
3860626
Feature 1: Wide control supply is 24-240 V AC/DC. Business impact: simplifies installation across different machines and regions, reducing wiring variants and inventory. Application: ideal for control panels with mixed supply sources. Feature 2: Three measuring ranges—0.3-1.5 A, 1-5 A, 3-15 A. Business impact: covers a broad load spectrum, enabling accurate protection without overdesign. Application: conveyor drives, pumps, and fans. Feature 3: SPDT output (1 c/o). Business impact: straightforward signaling and interlock possibilities, lowering wiring complexity and controller load. Application: signaling to PLCs or safety relays. Feature 4: Adjustable hysteresis (3–30% of threshold). Business impact: minimizes nuisance tripping while retaining robust fault detection. Application: process lines and critical loads. Feature 5: Rugged build with screw terminals and IP50 housing. Business impact: reliable field performance in harsh environments, easier maintenance. Application: industrial control panels and machine housings. Feature 6: Certifications and standards support. Business impact: accelerates compliance, audits, and approvals; supports global deployments. Application: equipment cabinets with CE, UL/CSA, UKCA markings and IEC standards. Feature 7: DIN rail mounting and compact footprint. Business impact: fast installation, scalable panel design, and easier upgrades. Application: standard automation enclosures and control boards.
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FAQs
To install, mount the CM-SRS.12S on a standard DIN rail (TH35-15 or TH35-7.5) in a control panel. Use screw terminals for all connections, ensuring the supply, measurement, and output wires are correctly sized (0.5-4 mm²) and tightened to 0.6-0.8 N·m. Use the sealable cover accessory if tamper resistance is required. This approach minimizes wiring errors and supports quick field upgrades.
The relay measures current in three ranges: 0.3–1.5 A, 1–5 A, and 3–15 A, and it operates from a rated control supply of 24–240 V AC/DC. It provides a 1 c/o SPDT output, making it suitable for simple signaling and control logic. These specs enable flexible protection for a wide variety of single‑phase loads in modern panels.
Yes. The CM-SRS.12S is designed to monitor single-phase currents and can trigger protect‑or‑signal actions when overcurrent or undercurrent occurs. Its adjustable hysteresis and robust IP50 housing make it appropriate for motor starters, conveyors, and other critical loads in machine panels, helping prevent unexpected downtime and equipment damage.
This device supports CE and UKCA declarations, UL/CSA approvals, and other compliance marks (cULus, CCC) as listed in its certificates. It also aligns with IEC/EN standards for electrical safety and EMC, helping you meet regulatory requirements across regions while maintaining safety and reliability in your control panels.
Current monitoring relays like the CM-SRS.12S enable proactive fault detection, reducing unplanned downtime and extending equipment life. With adjustable hysteresis and a compact DIN rail format, installation and maintenance are quicker, lowering labor costs and inventory complexity. Over time, this translates to measurable savings in uptime, energy efficiency, and panel reliability.