ABB 1SVR730831R1300 Voltage Monitoring Relay - UL/CSA
Part Number: 1SVR730831R1300
Quick Summary
Voltage monitoring relay CM-ESS.1S by ABB protects single‑phase control circuits by detecting undervoltage or overvoltage conditions in automation panels. Engineers often struggle with nuisance trips and miswired feedback that halt production; this device addresses that with adjustable hysteresis and a sealable cover to prevent unauthorized changes. It carries CE and UL/CSA listings, plus UKCA and IP50 housing, ensuring regulatory compliance in European and international environments. By integrating DIN-rail mounting and screw-terminal wiring, it delivers reliable protection while aligning with existing automation architectures and maintenance routines. This combination of precise thresholds, robust construction, and straightforward installation translates into reduced downtime and improved process availability for control systems and machines.
Product Information
Extended Description
1SVR730831R1300 ABB: The CM-ESS.1S 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 1 c/o (SPDT) output contact rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 3-60 A, 30-300 V and 60-600 V and works according to the open-circuit principle. The CM-ESS.1S is configurable for over- or undervoltage monitoring, the hysteresis is adjustable within a range of 3 to 30 % of the threshold value. 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
4016779852203
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - CM-ESS.1P; CM-ESS.1S 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
0.164 kg
Function
Over- or undervoltage monitoring
Measuring Range
3 ... 30 V | 6 ... 60 V | 30 ... 300 V | 60 ... 600 V
Rated Control Supply Voltage (Us)
220 ... 240 V AC
Output
1 c/o (SPDT) 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)
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 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 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
0.186 kg
Package Level 1 EAN
4016779852203
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)
2712246
E-Number (Norway)
4188082
E-Number (Sweden)
3860623
The CM-ESS.1S uses RMS measuring for both DC and AC voltages across four ranges—3-30 V, 6-60 V, 30-300 V, and 60-600 V—allowing precise detection without recalibration across common industrial supply fluctuations. This feature reduces mistrips and enables tighter control of critical loads, delivering measurable improvements in line reliability and energy management in automation panels. With a 1 c/o SPDT output, the relay provides clear, deterministic control signals that integrate with PLCs and safety interlocks, supporting easier logic design and faster fault diagnosis. The adjustable hysteresis from 3 to 30 percent of the threshold value adds resilience against nuisance faults due to transient voltage spikes, minimizing unwarranted actuation. The device is designed for screw-terminal connections and double-chamber cage terminals, enhancing connection security and field reliability. DIN-rail mounting (TH35-15 or TH35-7.5) and compact dimensions (22.5 mm width, 85.6 mm height, 103.7 mm depth) simplify panel layout and maintenance. With IP50 protection for the housing, operation remains robust in typical factory environments, while EN/UL/CSA certifications support regulatory compliance across regions. This combination of features supports faster installation, reduced maintenance cost, and a higher overall equipment efficiency (OEE) in automation projects, particularly in motor control centers and process automation where reliable single‑phase protection is critical. The CM-ESS.1S also aligns with ETIM and eClass classifications for seamless catalog integration and procurement workflows, helping engineers to specify, source, and deploy voltage monitoring relays with confidence.
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FAQs
Mount the CM-ESS.1S on a TH35 DIN rail (DIN rail TH35-15 or TH35-7.5) and connect supply 220-240 V AC to the supply terminals. Wire the measured circuit to the measuring terminals and connect the SPDT output to the control input or PLC. Use screw terminals for secure connections and ferrules where applicable to ensure reliable terminations.
The CM-ESS.1S supports four measuring ranges: 3-30 V, 6-60 V, 30-300 V, and 60-600 V RMS. The hysteresis is adjustable from 3% to 30% of the threshold value, allowing stable operation without nuisance trips in fluctuating supply conditions.
Yes. The RMS measuring principle supports both DC and AC voltages, enabling reliable monitoring of mixed supply environments typical in industrial automation and control panels.
The CM-ESS.1S features CE and UL/CSA listings, with UKCA as applicable, and is designed for industrial applications with IP50 housing. These certifications support compliance across EU, UK, and North American markets.
Key reliability specs include IP50 housing for rugged environments, 100,000 electrical durability cycles (AC-12) and 30,000,000 mechanical operations, plus robust terminal connections and DIN-rail mounting that reduce field faults. These features translate to fewer trips and lower maintenance costs over the product life cycle.