ABB 1SVR740712R1400 Thermistor motor protection relay - ATEX Certified
Part Number: 1SVR730712R1400
Quick Summary
The CM-MSS.31P thermistor motor protection relay protects motors from overheating in automated processes. Engineers often struggle with unwarranted downtime when sensors misread or faults cascade; this device provides early detection and reliable reset options to minimize interruptions. It is ATEX certified for hazardous areas, UL/CSA listed, and compliant with EN/IEC safety standards, ensuring safe, compliant operation. With a 24-240 V control supply, push-in Easy Connect terminals, and DIN-rail mounting, installation is straightforward, commissioning faster, and maintenance simpler, delivering measurable business value through increased motor uptime and reduced total cost of ownership.
Product Information
Extended Description
1SVR730712R1400 ABB: The CM-MSS.31S belongs to the CM-MSS thermistor motor protection relay range. It operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 1 n/c + 1 n/o (SPDT) output with contacts rated at 250 V / 4 A. It features one sensor circuit to monitor PTC temperature sensors and works according to the closed-circuit principle. The sensor circuit of the CM-MSS.31S is short-circuit, as well as interrupted-wire monitored and the relay can be reset automatically, manually or remotely after the failure has been removed. This protection relay is certified according to the ATEX directive 94/9/EC and is equipped with a reset / test button. 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.
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
AETAD009EXPU
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
BRABB008EXPU
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
CHSEC006EXPU
Lead Time
160 day
Warranty Return
Product under warranty must be returned
Stocked At Warehouses
CZABB004EXPU
Country of Origin
Germany (DE)
Made To Order
No
Product Sales Status
Active
Quote Only
No
Country of Origin
Germany (DE)
Lead Time
28 day
Made To Order
No
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
CZABB006EXPU
Warranty Return
Product under warranty must be returned
EAN
4013614496653
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-MSS.31S/P with screw or push-in terminals
Instructions and Manuals
Instruction Sheet / Manual - CM-MSS Thermistor motor protection relays | Installation instructions - CM-MSS Thermistor motor protection relays
Ex Operating Instructions
Additional information and notes on safety ATEX - CM-MSS.xx Thermistor motor protection relay
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
0.128 kg
Function
1 sensor circuit | Auto, manual or remote reset | Short-circuit detection | ATEX approved | Dynamic interrupted wire detection | Non-volatile fault storage
Rated Control Supply Voltage (Us)
24 ... 240 V AC/DC
Rated Operational Voltage
Auxiliary Circuit 250 V AC
Rated Frequency (f)
Supply Circuit 15 ... 400 Hz
Output
1 n/o + 1 n/c 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)
Output Circuit 1 / Output Circuit 2 4 kV | Output Circuit 4 kV
Rated Insulation Voltage (Ui)
Measuring Circuit / Output Circuit 300 V | Output Circuit 1 / Output Circuit 2 300 V | Supply Circuit / Measuring Circuit 300 V | Supply Circuit / Output Circuit 300 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 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
4.5 | 0.8 x 4 | Pozidriv 1
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
CAN/CSA C22.2 No.14 | EN 50495 | IEC/EN 63000 | IEC/EN 60079-7 | IEC/EN 60947-5-1 | IEC/EN 60947-8 | 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 2x 20-14 AWG | Rigid 1x 20-12 AWG
Tightening Torque UL/CSA
7.08 in·lb
Pilot Duty UL/CSA
B300
Flammability According to UL94
V-0
Ambient Air Temperature
Operation -25 ... +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
ATEX Certificate
EU Type Examination Certificate_TPS_18_ATEX_044254_0018_X
CB Certificate
CB_DK-40837-UL
CCC Certificate
CCC Certificate - Measuring and Monitoring Relays CM-PFS.x, CM-MSS.xxx, CM-MSS, CM-ENS, CM-ENS up/down
CQC Certificate
CQC Certificate, Measuring and Monitoring Relays, CM-PFS.x, CM-PFS, CM-MSS.xyz, CM-ENS, CM-ENS up/down, Made in Germany
cULus Certificate
cULus508_20140912-E140448
Declaration of Conformity - CCC
CCC Declaration of Conformity, Measuring and Monitoring Relays, CM-PFS.x, CM-PFS, CM-MSS.xyz, CM-ENS, CM-ENS up/down, Made in Germany
Declaration of Conformity - CE
EU Declaration of Conformity - CM-MSS.xxx thermistor motor protection relay with ATEX
Declaration of Conformity - UKCA
1SVD981007-10
DNV GL Certificate
DNV GL Certificate Thermistor motor protection relays
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
0.154 kg
Package Level 1 EAN
4013614496653
Object Classification Code
B
ETIM 7
EC002568 - Relay for thermistor protection (PTC)
ETIM 8
EC002568 - Relay for thermistor protection (PTC)
ETIM 9
EC002568 - Relay for thermistor protection (PTC)
eClass
V11.0 : 27371503
UNSPSC
39122331
E-Number (Finland)
2712506
E-Number (Norway)
4185873
E-Number (Sweden)
3860728
Feature → Business Impact → Application: The CM-MSS.31P accepts a wide control supply of 24-240 V AC/DC, enabling use across regions with varying mains without a different protection relay family. This simplifies stocking and reduces engineering effort during project scaling, especially for OEM equipment and plant retrofits. Feature → Business Impact → Application: A single 1 n/o + 1 n/c (SPDT) output provides straightforward control logic for motor starters and interlocks, reducing wiring complexity and potential mis-wiring in MT/MEP panels. This is ideal for compact control schemes in conveyors and machine tools where space is at a premium. Feature → Business Impact → Application: The integrated PTC sensor circuit continuously monitors thermistor temperatures, enabling rapid fault recognition and non-volatile fault storage, which minimizes undetected overheats and supports predictive maintenance programs across automation lines. Feature → Business Impact → Application: Short-circuit and wire-interrupt detection, plus automatic, manual or remote reset, keep motor protection active even after sensor faults, improving mean time between failures and reducing unplanned downtime in manufacturing cells. Feature → Business Impact → Application: ATEX certification, EN/IEC 60947-5-1 and 60947-8 compliance, plus UL/CSA listings, provide confidence for installation in hazardous zones and cross-border projects, lowering compliance risk while enabling wider deployment in process industries. Feature → Business Impact → Application: Easy Connect push-in terminals and flexible conductor ranges (2x0.5…1.5 mm²) simplify field wiring and speed up commissioning, particularly in retrofit projects where existing cabinets have limited space. Feature → Business Impact → Application: DIN rail mounting (TH35) and compact dimensions (22.5 mm width, 85.6 mm height) enable dense panel layouts and quicker replacements, reducing installed cost and downtime during maintenance.
Get a Quick Quote for a ABB 1SVR730712R1400
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in ABB 1SVR730712R1400?
Enquire Now
FAQs
The CM-MSS.31P supports TH35 DIN rail mounting and uses screwless terminals for quick, reliable wiring. It accepts flexible conductors up to 1.5 mm² and rigid conductors up to 1.5 mm², with a wire strip length of 8 mm. For installation, snap the device onto a compliant DIN rail, connect the 24-240 V control supply to the appropriate terminals, and attach the 1 NC + 1 NO output to the motor control circuit. The push-in terminals enable fast field connection and reduce installation time in control cabinets.
The relay provides 1 normally closed and 1 normally open contact (SPDT) with rated currents of up to 4 A at 230 V AC for the output, and 4 A at 24 V DC for DC operation. The sensor circuit monitors a PTC thermistor input, and the device features dynamic interrupted wire detection with a 4 kV impulse withstand between circuits to ensure robust protection in challenging electrical environments.
Yes. The CM-MSS.31P carries ATEX certification for use in potentially explosive atmospheres and conforms to relevant EN/IEC standards for motor protection relays. This makes it suitable for applications in chemical, oil, and other process industries where safe operation in hazardous zones is critical, while maintaining compatibility with UL/CSA listings for broader regional use.
The device is ATEX certified (EU Type Examination), with additional compliance to EN 60947-5-1 and EN 60947-8, UL 508, and UL/CSA listings. It also aligns with IEC/EN 63000 and safety directives for electronic relays and controls, ensuring reliable performance and acceptance across major global markets.
Maintenance requirements are minimal due to maintenance-free Easy Connect technology and automatic/remote/manual reset options. By preventing motor overheating and early faults, you achieve higher uptime, reduce unplanned downtime costs, and shorten mean time to repair. The device’s robust protection, tested reliability (high electrical and mechanical durability), and compliance with global standards contribute to a favorable total cost of ownership over the motor protection lifecycle.