ABB CM-PSS.31P Three-phase Monitoring Relay - UL/CSA B300
Part Number: 1SVR740784R2300
Quick Summary
The ABB CM-PSS.31P three-phase monitoring relay detects phase faults in motors and control panels. It supports proactive protection in electrical distribution by monitoring overvoltage, undervoltage, and phase sequence, with a configurable tripping delay. Key certifications including CE, UKCA, and UL/CSA ensure compliance across global installations and critical safety environments. Its Easy Connect technology with push-in terminals and optional sealable cover reduces commissioning time, while DIN-rail mounting keeps panels organized and accessible. For engineers, this translates to lower downtime, faster installation, and a scalable protection strategy for motors and automation lines. This combination supports safer operation, regulatory compliance, and predictable maintenance planning in complex automation environments.
Product Information
Extended Description
1SVR740784R2300 ABB: The CM-PSS.31P relay is from the CM three-phase monitors range. This relay operates with a rated control supply voltage / three-phase measuring voltage of 380 V AC and has a 2 c/o output with contacts rated at 250 V / 4 A. The CM-PSS.31P monitors the phase parameters over/undervoltage and phase failure. Phase sequence monitoring as well as an ON or OFF tripping delay are selectable. The tripping delay is adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). 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
4016779851992
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-PSS.31; CM-PSS.41 Three-phase monitoring relays with screw or push-in terminals
Instructions and Manuals
Instruction Sheet / Manual - CM-MPx, CM-PxS Three-phase monitoring relays | Installation instructions - CM-MPx, CM-PxS Three-phase 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
0.123 kg
Function
Phase failure detection | Phase sequence monitoring | Over- and undervoltage monitoring
Measuring Range
(L-L) 342 ... 418 V AC
Time Range
200 ms start-up delay | 0 s or 0.1 ... 30 s tripping delay (ON or OFF)
Rated Control Supply Voltage (Us)
(L-L) 380 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)
Input Circuit 6 kV | Output Circuit 4 kV
Rated Insulation Voltage (Ui)
Input Circuit / Output Circuit 600 V | Output Circuit 1 / Output Circuit 2 300 V
Degree of Protection
Housing IP50 | Terminals IP20
Overvoltage Category
III
Pollution Degree
3
Short-Circuit Protective Devices
Output Circuit NC - F Type Fuses 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 2x 0.5 ... 1.5 mm² | Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm² | 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 | 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 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
SCIP
417b58f1-42cc-4ac0-a0fe-47ef4807546f Germany (DE)
Simplified SCIP
c485f6ef-d728-4998-a4e6-a3e6a9ac63dc Belgium (BE) | a5d2d6fe-10de-4619-b95d-fe4b5321d0ab Hungary (HU) | 9fc6983e-c651-4925-a1d7-e450b153a22c Spain (ES) | 6e6b045c-b231-4bc0-be5b-0549fca1783a Bulgaria (BG) | 1b6a28f3-2b9b-4b44-bddb-c25efdd68252 Germany (DE) | abd6b23d-0e4a-491a-ad4b-affafe979aef Sweden (SE) | c926a01f-cc09-4ac9-b074-6388f48796f3 Poland (PL) | c7581e5f-b005-4b71-ab5d-9b6e29c5ddbe Sweden (SE) | 4cf58197-f8a7-451f-bf07-d8081615be54 France (FR) | a265079a-b50e-48c5-90ac-8dc16175aca2 France (FR) | d32865cf-41a9-47f2-8d3b-f6b3c0c9da4e Greece (GR) | c32368d9-779f-4148-b829-f9562f26b0a8 Hungary (HU) | ff5fe14f-a240-408a-be8b-4a49aba938d9 Portugal (PT) | 651b5b0d-a1ad-4125-86b6-a788fc887c40 Germany (DE) | c993e6ca-aa64-456a-98fd-672db4e5b588 Germany (DE) | 13291f8f-5c5e-44ea-b9a4-d3f85914734c Czech Republic (CZ) | 2e0b5eb0-744d-439f-8294-bc110e893a1d Croatia (HR) | 00af81e0-ae03-444f-8d32-cc344b138297 Estonia (EE) | 8ea3dcfc-1bdc-474c-8079-56fd07dfc39d Poland (PL) | 434933b2-cb0c-4428-9ba5-a1b199ba5982 Netherlands (NL) | 08478363-483c-4e04-9114-554e479befc0 Denmark (DK) | 89133ab9-26a6-4e83-b5f0-df967d4a89b3 Poland (PL) | 4359fc03-d467-4ae9-b320-833196d0c8cb Belgium (BE) | c3913901-592f-42aa-b327-55e622134927 Germany (DE) | a6f55f71-e2d7-4464-a107-e849dcad12c7 Finland (FI) | 4c15d769-bd88-416a-8529-a601bebd6394 Norway (NO) | f6fa44a9-d4d8-49f6-b396-34be8a4a16bc Italy (IT)
Toxic Substances Control Act - TSCA
Toxic Substances Control Act (TSCA) declaration for Electronic Relays and Controls
CQC Certificate
CQC Certificate, Electronic Measuring and Monitoring Relays, CM-MPS.., CM-PVS.., CM-PSS..,CM-PAS.., CM-UFS.., CM-MPN.., Made in Germany
cULus Certificate
cULus508_20120829-E140448
Declaration of Conformity - CCC
CCC Certificate, Electronic Measuring and Monitoring Relays, CM-MPS.., CM-PVS.., CM-PSS..,CM-PAS.., CM-MPN.., Made in Germany
Declaration of Conformity - CE
EU Declaration of Conformity - CM-xxS.xxx, CM-xxN.xxx Three-phase monitoring relays
Declaration of Conformity - UKCA
UK Declaration of Conformity - CM-xxS.xxx, CM-xxN.xxx Three-phase monitoring relays
DNV GL Certificate
DNV GL Certificate - CM-MPx.xxx, CM-PAS.xxx, CM-PSS.xxx,CM-PVS.xxx, and CM-PFS.x Three-phase monitoring relays with screw or push-in terminals
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
0.148 kg
Package Level 1 EAN
4016779851992
Object Classification Code
B
ETIM 7
EC001441 - Phase monitoring relay
ETIM 8
EC001441 - Phase monitoring relay
ETIM 9
EC001441 - Phase monitoring relay
eClass
V11.0 : 27371803
UNSPSC
39122332
E-Number (Finland)
2712287
E-Number (Norway)
4188097
E-Number (Sweden)
3860600
Phase failure detection and phase sequence monitoring provide immediate, reliable fault signaling, reducing risk of motor damage and unplanned downtime. We see tangible business impact when a single phase loss triggers a controlled shutdown rather than cascading failures across pumps and conveyors in manufacturing lines. Overvoltage and undervoltage monitoring with ON or OFF trip delays enable selective protection during startup and transient events. This reduces wear on power electronics and minimizes unnecessary trips, improving uptime and maintenance planning for pumps, fans, and conveyors. Output is two changeover contacts (SPDT) rated for 230 V and 4 A, enabling flexible wiring schemes in control panels. Compact form factor with screwless terminals and DIN rail mounting simplifies installation in crowded MCCs and cabinet branches. IP50 housing protects sensitive electronics from dust and incidental contact, while the device supports operation across a 50/60 Hz supply. Measuring range (L-L) 342–418 V AC and rated control voltage of 380 V AC ensure compatibility with typical European power distributions and panel designs. DIN rail mounting options TH35-15 and TH35-7.5 support quick, standardized installation in new and retrofit projects. Push-in terminals facilitate fast, tool-free wiring, while flexible conductor ranges match frequent panel wiring practices. Compliance with IEC/EN safety and UL/CSA certifications provides regulatory confidence for global facilities and OEMs. Electrical durability (AC-12) of up to 100,000 cycles and mechanical durability to 30,000,000 operations translate to long service life in continuous operation environments. Optional sealable cover helps protect settings from unauthorized changes, supporting robust change-control in process industries.
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FAQs
Install CM-PSS.31P on TH35-15 or TH35-7.5 DIN rails by snapping it onto the rail after positioning it alongside compatible modules. Use push-in terminals or ferrules for 2x 0.5–1.5 mm² wires, and tighten screws if required. Confirm correct orientation for the screwless terminals and verify the device is firmly seated before applying power.
The device is rated for a 380 V AC control supply and supports UL/CSA certifications, including CAN/CSA C22.2 No.14. It features 2 SPDT contacts, a 230 V AC switched output, and an IP50 housing, ensuring safe operation in industrial control panels under UL 508 and CSA requirements. The device's automated voltage and phase monitoring reduces risk of non-compliant shutdowns and supports traceability with product declarations.
It is ideal for motor protection in conveyor lines, pumps, and fans, as well as process-line control in packaging and manufacturing environments. Its phase failure detection and ON/OFF trip delay help avoid nuisance trips during startup while delivering fast isolation during faults. The 2 SPDT outputs support versatile control schemes and safe, independent signaling.
CM-PSS.31P complies with CE, UKCA, UL/CSA, CAN/CSA, IEC EN 63000, UL 508, and related IEC 61000-6-series standards. These declarations support regulatory compliance for European and North American installations. Additional certifications such as CCC and DNV GL are listed for broader markets, ensuring a robust framework for industrial automation projects worldwide.
By preventing phase failures and reducing nuisance trips, the CM-PSS.31P lowers unplanned downtime and extends motor life, translating into lower maintenance costs and improved throughput. The adjustable trip delay supports controlled shutdowns during startup, reducing wear on contactors, while the compact DIN-rail design minimizes panel space and installation time, delivering fast payback in new builds and retrofits.