ABB 1SVR550805R9300 Thermistor motor protection relay - UL 508
Part Number: 1SVR550805R9300
Quick Summary
ABB 1SVR550805R9300 Thermistor motor protection relay protects motors using PTC sensors in industrial drives. In field installations, miswiring or delayed fault detection can cause unplanned downtime and motor damage. This relay carries CE conformity and UKCA compliance and UL 508 listing, plus IP50 housing for rugged environments. As part of the CM-MSE measuring and monitoring relay family, it supports reliable automatic reset and easy integration into standard DIN rails, delivering safer panels and reduced maintenance cost. Its compact form with screw terminals simplifies wiring and serviceability in modern automation cabinets, helping engineers meet tighter uptime targets and regulatory requirements. Together, these factors translate to measurable reliability and lower total cost of ownership.
Product Information
Extended Description
1SVR550805R9300 ABB: The CM-MSE relay is from the CM thermistor motor protection relay range. This relay operates with a rated control supply voltage of 24 V AC and has a 1 n/o output contact rated at 250 V / 4 A. It features one sensor circuit for monitoring of PTC temperature sensors or bimetals. This relay offers automatic reset and works according to the closed-circuit principle. A sealable transparent cover for protection against unauthorized changes is available as accessory
EAN
4013614348761
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Catalog 2024 Electronic Relays and Controls - Chapter Measuring and Monitoring Relays
Instructions and Manuals
Installation instructions - CM-xxE range
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
Product Net Width
22.5 mm
Product Net Height
78 mm
Product Net Depth / Length
78.5 mm
Product Net Weight
0.105 kg
Function
1 sensor circuit | Auto reset
Sub-Function
none
Sub-Function 2
Auto reset
Time Range
none
Rated Control Supply Voltage (Us)
24 V AC
Rated Frequency (f)
Supply Circuit 50/60 Hz
Output
1 n/o 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
Rated Impulse Withstand Voltage (Uimp)
Output Circuit 4 kV
Rated Insulation Voltage (Ui)
Measuring Circuit / Output Circuit 250 V | Supply Circuit / Output Circuit 250 V
Degree of Protection
Housing IP50 | Terminals IP20
Short-Circuit Protective Devices
Output Circuit NC - F Type Fuses 10 A | Output Circuit NO - F Type Fuses 10 A
Connecting Capacity
Flexible with Ferrule 2x 1.5 mm² | Flexible 2x 1 ... 1.5 mm² | Rigid 2x 0.75 ... 1.5 mm²
Tightening Torque
0.6 ... 0.8 N·m
Wire Stripping Length
10 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 | IEC/EN 63000 | IEC/EN 61000-6-2 | IEC/EN 61000-6-3 | UL 508
Maximum Operating Voltage UL/CSA
Output Circuit 250 V AC
Connecting Capacity UL/CSA
Flexible with Ferrule 2x 16 AWG | Flexible 2x 18-16 AWG | Rigid 2x 18-16 AWG
Tightening Torque UL/CSA
7.08 in·lb
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-8880
CCC Certificate
CCC Certificate - Measuring and Monitoring Relays CM-E range
CQC Certificate
CQC Certificate, Electronic Measuring and Monitoring Relays, CM-PFE, CM-PVE, CM-PBE, CM-MSE, CM-ENE MAX, CM-ENE MIN, Made in Bulgaria
cUL Certificate
cUL508_E140448
Declaration of Conformity - CCC
CCC Declaration of Conformity, Electronic Measuring and Monitoring Relays, CM-PFE, CM-PVE, CM-PBE, CM-MSE, CM-ENE MAX, CM-ENE MIN, Made in Bulgaria
Declaration of Conformity - CE
EU Declaration of conformity - CM-MSE Thermistor motor protection relay
Declaration of Conformity - UKCA
UK Declaration of conformity - CM-MSE Thermistor motor protection relay
UL Certificate
UL Certificate (UL 508) - CT-E, CT-S range time relays, CM and C51x range measuring and monitoring relays , C57x and C67xx range safety relays, CC-U range analog signal converters with relay output
Package Level 1 Units
box 1 piece
Package Level 1 Width
23 mm
Package Level 1 Depth / Length
82 mm
Package Level 1 Height
82 mm
Package Level 1 Gross Weight
0.116 kg
Package Level 1 EAN
4013614348761
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)
2712845
E-Number (Norway)
4185876
E-Number (Sweden)
3860214
Feature: One sensor circuit for monitoring PTC temperature sensors or bimetals. Business Impact: Enables continuous motor health monitoring, reduces overheating risk, and prevents false alarms that disrupt production; this also supports predictive maintenance by capturing trip events for root-cause analysis. Application: Ideal for CM-MSE measuring and monitoring relays in small to mid-size motors across conveyors, pumps, and fans in automated lines where precise temperature feedback is essential. Feature: Auto reset with closed-circuit protection. Business Impact: Delivers quick return-to-operation after a fault, reducing manual intervention, service visits, and downtime costs; this resilience minimizes production losses during fault events. Application: Suited for motors in demanding environments where uninterrupted line operation is critical, such as packaging lines, textile machinery, CNC equipment, and automated material handling systems in modern factories. Feature: 24 V AC control supply and 1 n/o output with screw terminals. Business Impact: Aligns with standard control circuits, enabling easy integration with PLCs and existing I/O, while simplifying wiring, diagnostics, and future upgrades. Application: Fits DIN-rail mounted control panels and retrofit projects in industrial automation cabinets, including control zones with limited space and high wiring density; ensures reliable signal integrity in harsh environments. Feature: DIN rail mounting TH35-15 or TH35-7.5 and compact dimensions (22.5 mm width, 78 mm height). Business Impact: Saves panel space, accelerates installation in crowded electrical enclosures, and improves repeatability of panel builds, lowering installation time and labor cost. Application: Used in machine builders and panel shops that standardize on compact protection relays for motors in packaging, material handling, and automation lines. Feature: IP50 housing and robust electrical ratings, including 4 A AC-12 at 230 V, 3 A AC-15, 4 A DC-12, 2 A DC-13, and 4 kV impulse withstand. Business Impact: Ensures reliable operation in harsh environments and safe interfacing with measuring circuits and outputs, reducing risk of damage, warranty costs, and noncompliance. Application: Suitable for pumps, conveyors, and fans in industrial automation; supports UL 508, CE, UKCA compliance and RoHS/REACH obligations; compatible with the CM-MSE family.
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FAQs
Mount the device on a standard DIN rail (TH35-15 or TH35-7.5) and use the screw terminals for connections. The unit supports a 24 V AC control supply and a single normally-open output. Wire counts are compatible with flexible ferrule conductors up to 1.5 mm² and rigid wires up to 1.5 mm², with a recommended tightening torque of 0.6–0.8 N·m.
AC-12 rated current is 4 A at 230 V, AC-15 is 3 A at 230 V. DC-12 is 4 A at 24 V, and DC-13 is 2 A at 24 V. Output is a single normally-open contact with a 4 kV impulse withstand and 250 V insulation between circuits.
Yes. The CM-MSE thermistor relay is designed for measuring and monitoring motor protection using PTC sensors, auto reset, and a compact DIN-rail form factor, making it well-suited for conveyors, pumps, fans, and other industrial mechanisms in automated lines.
It carries CE and UKCA conformity marks and UL 508 certification, with RoHS/REACH declarations. It is designed to meet international safety and environmental requirements for global deployment in control panels and machinery.
A sealable transparent cover accessory is available to guard against unauthorized changes, improving maintenance control and configuration integrity in panel environments.