ABB 1SVR740712R0200 Thermistor Relay - ATEX Certified
Part Number: 1SVR740712R0200
Quick Summary
The ABB 1SVR740712R0200 Thermistor motor protection relay monitors PTC sensors to safeguard motors in industrial drives. It minimizes nuisance trips caused by transient sensor faults and interrupted wiring by providing reliable fault detection and a flexible reset option. Certified for ATEX environments and listed to UL/CSA and CE requirements, the device supports global compliance across manufacturing sites. With a 24 V AC/DC control supply and maintenance-free Easy Connect terminals, installation on TH35 DIN rails is fast, building a scalable protection layer for motor fleets.
Product Information
Extended Description
1SVR740712R0200 ABB: The CM-MSS.32P belongs to the CM-MSS thermistor motor protection relay range. It operates with a rated control supply voltage of 24 V AC/DC and has a 2 c/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 this CM-MSS.32P 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 maintenance free Easy Connect Technology with push-in terminals.
EAN
4013614496578
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-MSS.32S/P and CM-MSS.33S/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
0.12 kg
Function
1 sensor circuit | Short-circuit detection | Dynamic interrupted wire detection | Auto | manual or remote reset | ATEX approved
Rated Control Supply Voltage (Us)
24 V AC/DC
Rated Operational Voltage
Auxiliary Circuit 250 V AC
Rated Frequency (f)
Supply Circuit 50/60 Hz
Output
2 c/o (SPDT) contacts
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)
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 / 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 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 | 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 2x 18-16 AWG | Rigid 2x 20-16 AWG
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
0.146 kg
Package Level 1 EAN
4013614496578
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)
2712507
E-Number (Norway)
4188167
E-Number (Sweden)
3860733
With a 24 V AC/DC control supply and two SPDT outputs, the relay directly interfaces with common motor starters and PLC logic, reducing component counts and wiring complexity. This translates to faster commissioning and smaller panel footprints in pump and fan drives, especially where 230 V auxiliary circuits are used. Sensor monitoring and fault detection provide automatic, manual, or remote reset after a fault, minimizing unplanned downtime and enabling rapid recovery in conveyors and pumping systems. The device carries ATEX certification for hazardous environments, along with UL/CSA and CE declarations, supporting compliant deployment across global manufacturing sites and reducing risk during audits. Maintenance-free Easy Connect technology with push-in terminals speeds field wiring, lowers labor costs, and improves consistency in panel assembly, which is particularly valuable for retrofits and scalable motor protection across large fleets. Designed for DIN rail mounting on TH35 profiles, it fits neatly into compact control panels, enabling easy integration into existing machine architectures and minimizing enclosure depth requirements. The compact form factor, IP50 housing protection, and durable mechanical design support long service life in demanding industrial settings, from packaging lines to water treatment plants.
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FAQs
The device is designed for TH35 DIN rails (TH35-15 or TH35-7.5). It uses screwless push-in terminals for fast wiring of flexible or rigid conductors (2x 0.5 ... 1.5 mm²). Mount the relay on a standard DIN rail, connect the 24 V AC/DC control supply, and wire the 2 SPDT outputs to the control circuit or motor starter. This streamlines panel layouts and reduces commissioning time.
The CM-MSS.32P provides 2 c/o SPDT outputs with ratings of up to 4 A at 230 V AC for both contact paths, and 24 V AC/DC control input. It supports 50/60 Hz supply, auxiliary circuit voltage of 250 V AC, and can monitor a single PTC sensor circuit with short-circuit and interrupted-wire detection, enabling robust motor protection.
Yes. The 1SVR740712R0200 is ATEX certified, as indicated by its EU Type Examination certificate. It is suitable for hazardous locations and can be deployed in areas requiring explosion protection, alongside CE and UL/CSA compliance for broader industrial applications.
The relay carries ATEX certification, CE Declaration of Conformity, UL/CSA recognition, CCC/CQC certificates, and cULus listing. It also aligns with essential standards such as IEC/EN 60947-5-1 and EN 60947-8, providing a broad compliance footprint for global deployments.
The device offers maintenance-free Easy Connect push-in terminals, manual/remote reset options, and automatic fault-clear recovery, reducing field service time. Long mechanical and electrical durability (up to 30 million cycles and 100,000 cycles respectively) translates to lower replacement costs and minimized downtime across motor fleets in continuous production environments.