ABB 1SVR730722R1400 Motors & Drives - ATEX Certified
Part Number: 1SVR730722R1400
Quick Summary
ABB 1SVR730722R1400 is a thermistor motor protection relay for safeguarding AC motors in industrial drives. Engineers often struggle with hidden sensor faults that trigger motor damage and unplanned downtime; this device monitors PTC sensors and auto-resets after fault clearance to resume normal operation. It carries ATEX certification and UL/CSA listings, with CE conformity and a rugged IP50 housing for harsh environments, ensuring reliable protection in hazardous and non-hazardous areas. The solution also supports compact DIN rail mounting and screw-terminal wiring, delivering scalable motor protection that reduces panel wiring time and supports future expansion in modern automation architectures.
Product Information
Extended Description
1SVR730722R1400 ABB: The CM-MSS.21S 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.21S is short-circuit, as well as interrupted-wire monitored and the relay will be reset automatically after the failure has been removed. This protection relay is certified according to the ATEX directive 94/9/EC. 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
4013614496622
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-MSS.21S/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
0.126 kg
Function
1 sensor circuit | Short-circuit detection | Auto reset | 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
0.153 kg
Package Level 1 EAN
4013614496622
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)
2712399
E-Number (Norway)
4187716
E-Number (Sweden)
3860722
Feature: Broad control voltage range from 24 to 240 V AC/DC. Benefit: Enables universal compatibility across global motor fleets without multiple part numbers, reducing stocking complexity and spare parts costs. Application: Suitable for mixed-voltage motor control panels in conveyors and pumps. Feature: 1 n/o + 1 n/c output with a 250 V auxiliary circuit. Benefit: Flexible control interfaces for interlocking and status signaling, cutting wiring mistakes and enabling safer start/stop sequencing. Application: Motor control circuits and starter interlocks in packaging lines. Feature: Sensor circuit monitoring for PTC thermistors with auto reset and non-volatile fault storage. Benefit: Quick fault diagnosis, minimal manual intervention, and retained fault history for preventive maintenance. Application: Motors in dusty or humid environments prone to sensor faults. Feature: Screw terminals and DIN rail mounting options (TH35-7.5 / TH35-15). Benefit: Fast, vibration-resistant installation with secure wiring, reducing commissioning time. Application: Modular motor protection in compact control cabinets. Feature: Robust electrical durability (AC-12 100000 cycles) and mechanical durability (30,000,000 cycles). Benefit: Long service life in high-cycle applications, lowering replacement costs. Application: Continuous-duty fans, pumps, and conveyor drives. Feature: Protection ratings (IP50 housing, IP20 terminals) and 24-240 V operation. Benefit: Safe operation in varied environments with straightforward wiring, lowering installation and maintenance risk. Application: Outdoor-rated or semi-industrial enclosures where protection against dust and incidental contact matters. Feature: ATEX and CE certifications with UL/CSA applicability. Benefit: Compliance confidence for global projects and hazardous-area installations, simplifying procurement and approvals. Application: Global OEM deployments across energy, packaging, and materials handling sectors.
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FAQs
This relay supports DIN rail mounting on TH35-7.5 or TH35-15 rails and uses screw terminals for flexible, secure connections. Plan for 0.6-0.8 N·m tightening torque and wire ferrule or stranded conductors within 0.5-4 mm² capacity. Ensure the supply is within 24-240 V and keep the sensor wiring isolated from high-power lines to minimize interference.
The device provides 1 normally open and 1 normally closed contact (1 n/o + 1 n/c) with a 250 V auxiliary circuit. Rated operational currents are 4 A AC-12 and 3 A AC-15 at 230 V AC, and 4 A DC-12 / 2 A DC-13 at 24 V, enabling safe interlocking and control of motor circuits. Minimum switching capacity is 24 V at 10 mA.
Yes. The relay is ATEX certified (EU Type Examination) and CE compliant, with UL/CSA listings for North American markets. These certifications support operation in hazardous zones and broad regulatory acceptance for industrial motor protection across global plants.
Key standards include EN/IEC 60947-1 and 60947-5-1 for electromechanical relays, CE conformity for Europe, UL 508/UL 508A and CSA for North America, and ATEX for hazardous-area applications. The device also aligns with RoHS, REACH, and related environmental compliance requirements.
By monitoring PTC sensor health with auto reset and non-volatile fault storage, it reduces diagnostic time and manual fault clearing. The robust DIN-rail mounting and long electrical/mechanical durability translate to fewer replacements and lower spare-part expenses, resulting in measurable uptime gains and lower total cost of ownership in continuous-operation motors.