ABB 1SVR740885R3300 Three-phase Monitoring Relay - CE/UL
Part Number: 1SVR740885R3300
Quick Summary
CM-MPS.21P three-phase monitoring relay detects voltage faults in industrial power networks, protecting motors and feeders. Engineers often battle undetected phase faults, unnecessary trips, and stubborn downtime that erode productivity and drive maintenance costs. CE, UL/CSA, and UKCA certifications support global safety and regulatory compliance for equipment across the plant. Used with ABB’s CM-MPS family, it benefits from Easy Connect push-in terminals and DIN rail mounting, reducing commissioning time and maintenance costs while delivering reliable protection. Its adjustable thresholds and tripping delay allow precise coordination with upstream protection and machine control schemes, minimizing nuisance trips. Compact footprint and robust IEC 60715 DIN-rail compatibility make it suitable for tight control panels in diverse industrial environments.
Product Information
Extended Description
1SVR740885R3300 ABB: The CM-MPS.21P is a multifunctional relay from the CM three-phase monitors range. It operates with a rated control supply voltage / three-phase measuring voltage of 180-280 V AC 50/60 Hz and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. This relay is also suitable to monitor single-phase mains. It monitors all phase parameters such as over/undervoltage, phase unbalance, phase failure as well as an interrupted neutral. The corresponding threshold values are adjustable. 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
4016779852074
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-MPS.21, CM-MPS.41 Multifunctional 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
0.135 kg
Function
Over- and undervoltage monitoring | Phase failure detection | Phase unbalance detection | Phase sequence monitoring | Interrupted neutral monitoring
Measuring Range
(L-N) 180 ... 280 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-N) 180 ... 280 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
TH35-7.5 (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 | 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
fe6c4ca4-9ad7-40fa-9012-9a5e2f72553f Germany (DE)
Simplified SCIP
b1c9514b-991a-4e78-86f0-5628153c4baf France (FR) | 026923f8-8085-4a33-98d2-2db80d729162 Germany (DE) | b55d4e03-617e-4a45-9c48-410aa707a1aa Spain (ES) | 7c9c9129-966d-4965-af94-9bd15059e900 Belgium (BE) | 09c86f47-2b42-4e89-8762-557eab94df56 Belgium (BE) | 3ff2be6c-7f6e-47e6-90d0-588a616972e2 Hungary (HU) | ef432444-9244-4930-9f32-10989a4929e0 Bulgaria (BG) | 3e64c2fe-729c-48ab-9378-87c9f88f42e4 Hungary (HU) | 1de2fe7b-34a4-4230-8360-8d485e679a64 Portugal (PT) | 2b4d960b-9275-435a-918d-3ac30b2f6638 Greece (GR) | 1acb88cc-b5a7-43ec-b7a8-365b1c932e7f Poland (PL) | 75078851-f6b8-472a-b4d2-5c8efa80a1aa Germany (DE) | e0cc2a10-8131-404b-bd64-b5bee44b1315 Denmark (DK) | 66ab1d50-02ba-4296-bcc3-1c0644de8317 Germany (DE) | bd9f44bd-275d-4c54-a3c4-d3cf4e949fba Czech Republic (CZ) | df483829-91a4-4b4b-a889-f6292eb991bd Italy (IT) | a493ca17-7472-470d-92ac-cea9336ca18c Germany (DE) | b499cad9-2d8b-4d58-8c45-e0b7678c3e32 Norway (NO) | 04011974-5494-4bd0-abdf-feb258ef7850 Sweden (SE) | d0ddfbf1-93ff-4f05-a62a-cf3047df7e7e Poland (PL) | fdf27983-46a8-4bcc-afee-68e60c273cab Netherlands (NL) | ddaa9861-50e9-4cd3-9db5-e7cf0235972f Estonia (EE) | c7f42cbe-5734-4d04-86be-4280ffd7ef1c Sweden (SE) | e15541ad-cb09-485b-bab5-ffce44006e03 France (FR) | 24a9dea3-8bd4-44be-a33a-6edbc68958b1 Croatia (HR) | dd4931e1-c31c-43cd-bc03-02cd190b1e8a Finland (FI) | b61b0274-e112-4515-8249-20c1ff34400b Poland (PL)
Toxic Substances Control Act - TSCA
Toxic Substances Control Act (TSCA) declaration for Electronic Relays and Controls
CB Certificate
CB_DK-27947-UL
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
0.16 kg
Package Level 1 EAN
4016779852074
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)
2712271
E-Number (Norway)
4188133
E-Number (Sweden)
3860609
Feature: The CM-MPS.21P provides 2 c/o SPDT outputs rated at 250 V / 4 A, enabling reliable switching of alarms, relays, or other protective devices. Business impact: This enables fail-safe signaling and precise control strategies without adding external relays, reducing wiring complexity and downtime. Application: Ideal for coordinating motor feeders, line protection, and interlocks in mixed-voltage panels. Feature: Measuring and control voltage range of 180-280 VAC with 50/60 Hz supply ensures compatibility with global power systems. Business impact: Simplifies design and stocking, enabling quicker deployment in multinational facilities. Application: Suitable for main feeders, motor starters, and protection circuits across diverse plants. Feature: Comprehensive protection includes over/undervoltage, phase failure, phase unbalance, phase sequence, and interrupted neutral with adjustable thresholds. Business impact: Lowers risk of equipment damage and unplanned downtime; Application: Critical for pumps, conveyors, and processing lines. Feature: Time-delay options include ≤200 ms start-up delay and 0 s or 0.1–30 s tripping delay (ON or OFF). Business impact: Improves sequencing and reduces nuisance trips, enhancing process stability. Application: Use in motor starters and drop-in protection schemes. Feature: Installation and durability features such as Easy Connect push-in terminals, screw terminals, and DIN rail mounting TH35-7.5/15. Business impact: Cuts installation time and maintenance effort; Application: Ideal for panel builders and retrofit projects in harsh environments. Durability: Electrical 100,000 cycles; Mechanical 30,000,000 cycles; Ambient -25 to +60 °C; IP50 housing.
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FAQs
CM-MPS.21P is designed for DIN rail mounting on TH35-7.5 or TH35-15 rails and uses screwless push-in terminals for quick, maintenance-free wiring. This reduces panel space requirements and speeds up commissioning, making it ideal for retrofit projects and new installations in automation cabinets.
It monitors overvoltage, undervoltage, phase failure, phase unbalance, and interrupted neutral, with adjustable threshold values. Thresholds, along with the ON or OFF trip delay (0 s or 0.1–30 s) and start-up delay (≤200 ms), can be tuned to coordinate with upstream protection and machine control logic.
The CM-MPS.21P is a multifunctional three-phase monitoring relay designed for L-N 180–280 VAC and 50/60 Hz systems, with additional suitability for monitoring single-phase mains in certain configurations. It provides two SPDT outputs for signaling and control, supporting diverse industrial applications with robust protection.
The device carries CE, UL/CSA, and UKCA declarations, along with additional certifications like CCC and RoHS/REACH compliance. This broad certification portfolio helps meet global safety standards and supports deployments in European, North American, and other international markets.
Easy Connect push-in terminals simplify wiring and reduce field rigging time, while screw terminals provide secure, durable connections. The combination helps minimize commissioning labor, lowers maintenance costs, and improves panel reliability in busy automation environments.