ABB 1SVR730831R1400 Voltage Monitor Relay - UL/CE
Part Number: 1SVR730831R1400
Quick Summary
Voltage monitoring relay CM-ESS.2S provides reliable undervoltage and overvoltage protection for single-phase industrial power systems. Its design addresses the frequent challenge of voltage sags and spikes that cause unplanned downtime. This device carries CE, UL/CSA, and CCC certifications, underscoring compliance across Europe, North America, and beyond. With DIN rail mounting, screw-terminal connections, and a compact form factor, it delivers robust protection with easy installation and low maintenance, while 2 c/o outputs support reliable control logic for panel automation and energy management. The 220–240 V AC supply aligns with typical facility mains, and the open-circuit monitoring principle simplifies diagnostics during commissioning. This combination speeds retrofit projects and minimizes field service time, improving overall equipment uptime.
Product Information
Extended Description
1SVR730831R1400 ABB: The CM-ESS.2S is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 220 - 240 V AC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.2S is configurable for over- or undervoltage monitoring. The hysteresis is adjustable within a range of 3 to 30 % of the threshold value and 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 screw connection technology with double-chamber cage connection terminals.
EAN
4016779852210
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-ESS.2P; CM-ESS.2S Voltage monitoring relays, single-phase AC/DC
Instructions and Manuals
Instruction Sheet / Manual - CM-ExS Single-phase voltage monitoring relays | Installation instructions - CM-ExS Single-phase voltage 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
0.181 kg
Function
Over- or undervoltage monitoring
Measuring Range
3 ... 30 V | 6 ... 60 V | 30 ... 300 V | 60 ... 600 V
Time Range
0 s or 0.1 ... 30 s tripping delay (ON)
Rated Control Supply Voltage (Us)
220 ... 240 V AC
Output
2 c/o (SPDT) contacts
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)
Measuring Circuit / Output Circuit 6 kV | Output Circuit 1 / Output Circuit 2 4 kV | Supply Circuit / Measuring Circuit 6 kV | Supply Circuit / Output Circuit 4 kV
Rated Insulation Voltage (Ui)
Measuring Circuit / Output Circuit 600 V | Output Circuit 1 / Output Circuit 2 250 V | Supply Circuit / Measuring Circuit 600 V | Supply Circuit / Output Circuit 250 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 with Ferrule 1x 0.5 ... 2.5 mm² | Flexible with Ferrule 2x 0.5 ... 1.5 mm² | Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mm² | Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm² | 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
0.8 x 4 | 4.5 | Pozidriv 1
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 1x 18-14 AWG | Flexible 2x 18-16 AWG | Rigid 1x 20-12 AWG | Rigid 2x 20-14 AWG
Tightening Torque UL/CSA
7.08 in·lb
Pilot Duty UL/CSA
B300
Flammability According to UL94
V-0
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-28255-UL
CQC Certificate
CQC Certificate, Relays, CM-SRS.., CM-SFS.., CM-ESS..,CM-EFS.., CM-TCS.., Made in Germany
cULus Certificate
cULus508_20120203-E140448
Declaration of Conformity - CCC
CCC Certificate, Relays, CM-SRS.., CM-SFS.., CM-ESS..,CM-EFS.., CM-TCS.., Made in Germany
Declaration of Conformity - CE
EU Declaration of Conformity - CM-ExS.xxx, CM-SxS.xxx Single-phase current and voltage monitoring relays
Declaration of Conformity - UKCA
UK Declaration of Conformity - CM-ExS.xxx, CM-SxS.xxx Single-phase current and voltage monitoring relays
DNV GL Certificate
DVN Certificate - Voltage monitoring relays CM-EFS.x and CM-ESS.x with screw or push-in terminals
EAC Certificate
EAC Certificate - Measuring and monitoring relays CM-xxS.xxx and CM-xxN.xxx range in the new housing
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
0.204 kg
Package Level 1 EAN
4016779852210
Object Classification Code
B
ETIM 7
EC001438 - Voltage monitoring relay
ETIM 8
EC001438 - Voltage monitoring relay
ETIM 9
EC001438 - Voltage monitoring relay
eClass
V11.0 : 27371801
UNSPSC
39122332
E-Number (Finland)
2712252
E-Number (Norway)
4188088
E-Number (Sweden)
3860624
The CM-ESS.2S uses an RMS measuring principle to monitor a wide voltage range while powered from 220–240 VAC, enabling accurate protection in standard mains. Feature → Business Impact → Application: Measuring across four ranges (3-30 V; 6-60 V; 30-300 V; 60-600 V) provides coverage for diverse supply conditions, reducing mis-tripping and extending component life in packaging lines and conveyors. Feature → Business Impact → Application: The 0 s or 0.1-30 s trip delay lets engineers tailor response to transient disturbances, decreasing nuisance trips and preserving process stability in machine tools. Feature → Business Impact → Application: 2 SPDT contacts deliver flexible control, allowing alarms, interlocks, or shutdown sequences without extra modules. Feature → Business Impact → Application: Screw terminal connections and DIN rail mounting simplify installation, minimize wiring errors, and speed commissioning. Feature → Business Impact → Application: Adjustable hysteresis (3-30% of threshold) and a sealable cover help maintain configuration integrity in retrofit projects. Feature → Business Impact → Application: Compliance with IEC/EN standards and IP ratings ensures safe operation in harsh industrial environments and reduces audit risk.
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FAQs
The CM-ESS.2S is designed for DIN-rail mounting on TH35-15 or TH35-7.5 profiles and uses screw terminals for reliable, vibration‑resistant connections. Wire ranges accommodate flexible and rigid conductors up to 4 mm2, with clear torque specs (0.6–0.8 N·m) to ensure a robust, serviceable installation in control panels.
It provides four measuring ranges: 3–30 V, 6–60 V, 30–300 V, and 60–600 V, all monitored with the RMS principle. The device offers a fixed 0 s instantaneous trip option or a programmable 0.1–30 s trip delay, plus adjustable hysteresis from 3% to 30% of the threshold to tailor response to site conditions.
Yes. With 2 SPDT outputs (2 c/o contacts) and 230 V operation, the CM-ESS.2S can drive interlocks, alarms, or cut-outs in single-phase motor circuits. Its compact DIN rail format, protective IP50 housing, and robust electrical durability (AC-12 up to 100000 cycles) support reliable motor protection in conveyors, pumps, and machine tools.
The CM-ESS.2S carries CE and UKCA marks and UL/CSA/cULus approvals, alongside CCC and CB declarations. It complies with IEC/EN 63000, IEC/EN 60255-27, and related EMC and safety standards, ensuring safe integration into global control panels and supplier audits.
By reducing nuisance trips and extending equipment life, the CM-ESS.2S lowers downtime costs and maintenance effort. Its open-circuit protection principle and sealable cover option help prevent tampering, while the durable contacts (AC-12 rated) and long mechanical life support low maintenance routines in high-duty environments.