ABB 1SVR730830R0300 Voltage Monitoring Relay - 24-240V
Part Number: 1SVR730830R0300
Quick Summary
CM-ESS.1S voltage monitoring relay is a precise, single-phase protection device for industrial control systems. It delivers reliable over- and undervoltage monitoring to keep critical equipment like motors and drives operating within safe parameters. Engineers often struggle with nuisance trips and misconfigurations that disrupt uptime; this family of relays addresses those pain points with adjustable hysteresis and clear fail‑safe behavior. The unit carries CE marking, UL/CSA compliance, and CAN/CSA/CQC declarations, reinforcing safety and interoperability across regional standards. By combining a 24–240 V AC/DC control supply with a robust SPDT output, it simplifies panel wiring while delivering consistent protection and measurable business value for OEMs and end users alike.
Product Information
Extended Description
1SVR730830R0300 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 24 - 240 V AC / DC 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.
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
AETAD009EXPU
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
BRABB008EXPU
Country of Origin
Germany (DE)
Lead Time
90 day
Made To Order
No
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
CHABB001EXPU
Warranty Return
Product under warranty must be returned
Country of Origin
Germany (DE)
Lead Time
0 day
Made To Order
No
Warranty Return
Product under warranty must be returned
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
CHSEC006EXPU
Lead Time
160 day
Warranty Return
Product under warranty must be returned
Stocked At Warehouses
CZABB004EXPU
Country of Origin
Germany (DE)
Made To Order
No
Product Sales Status
Active
Quote Only
No
Lead Time
31 day
Made To Order
No
Product Sales Status
Active
Quote Only
No
Stocked At Warehouses
USSVCEXPU
Warranty Return
Product under warranty must be returned
EAN
4016779852159
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
0.135 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)
24 ... 240 V AC/DC
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
0.157 kg
Package Level 1 EAN
4016779852159
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)
2712244
E-Number (Norway)
4188078
E-Number (Sweden)
3860618
Feature → Business Impact → Application: The CM-ESS.1S uses an RMS measuring principle for both DC and AC voltages, with four selectable measuring ranges (3-30 V, 6-60 V, 30-300 V, 60-600 V). This ensures accurate sensing across common industrial power supplies, reducing misreads and nuisance trips in mixed-voltage environments. Result: smoother control logic and fewer false alarms in motor starters and power panels. Application: panel integrators and machine builders needing reliable voltage protection for mixed legacy and modern drives. Feature → Business Impact → Application: It provides a 1 c/o SPDT output rated at 250 V / 4 A, enabling straightforward integration with interlocks, alarms, or control circuits. Result: simpler wiring schemes, fewer components, and faster commissioning. Application: drive interlocks and process alarms in machine lines where a single fault must trigger a defined control action. Feature → Business Impact → Application: Adjustable undervoltage/overvoltage threshold with 3–30% hysteresis increases protection accuracy and reduces cycling. Result: improved equipment life and energy efficiency, plus reduced electricity waste from unnecessary switching. Application: transformer protection, soft-start sequencing, and critical control circuits in manufacturing lines. Feature → Business Impact → Application: Screw-terminal connections and TH35 DIN-rail mounting (TH35‑15 or TH35‑7.5) enable fast, secure installation with robust field wiring. Result: reduced installation time, easier maintenance, and high reliability in crowded control cabinets. Application: OEM panel assemblies and field service installations in automation systems. Feature → Business Impact → Application: Comprehensive standards and certifications (UL 508, CE, CAN/CSA, IEC/EN 61000-6-2/3) support regulatory compliance and global deployment. Result: smoother procurement, less risk during audits, and confidence in world‑scale rollouts. Application: industrial environments requiring formal certification for control relays in customer projects.
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FAQs
Install the CM-ESS.1S on a TH35 DIN rail (TH35-15 or TH35-7.5) in a control cabinet. Use the screw terminals for wiring, ensuring conductor sizes match the flexible or rigid ranges listed (0.5-4 mm2). Torque should be 0.6-0.8 N·m. Keep within the IP50 housing rating and maintain the 8 mm wire stripping length for secure connections.
It monitors 24-240 V AC/DC control supply and uses RMS voltage measurement across four ranges: 3-30 V, 6-60 V, 30-300 V, and 60-600 V. When the monitored voltage crosses configured thresholds, the SPDT output changes state, enabling interlocks, alarms, or control logic to protect equipment.
Yes. The CM-ESS.1S carries UL 508 and CAN/CSA certifications, CE conformity, and related safety declarations. This supports compliance in North American and European installations and helps streamline procurement for regulated projects.
Benefits include screw-terminal connections for robust field wiring, DIN-rail mounting for quick installation, IP50 housing protection for the electronics, and defined maintenance through a clear warranty policy. The device’s electrical durability (AC-12 100,000 cycles) and mechanical durability (30,000,000 cycles) further support long-term reliability.
By reducing nuisance trips with precise, adjustable thresholds and stable hysteresis, downtime and write-offs decrease while energy efficiency and control accuracy improve. Combined with fast installation and global certifications, you shorten project timelines and lower total cost of ownership in single-phase protection applications.