ABB 1SVR730830R0400 Voltage Monitoring Relay - 24-240 VAC/DC (2 c/o SPDT)
Part Number: 1SVR730830R0400
Quick Summary
CM-ESS.2S voltage monitoring relay from ABB is a single-phase monitoring device designed for industrial control panels that require reliable undervoltage and overvoltage protection. This solution helps prevent equipment damage and unexpected downtime by quickly detecting voltage anomalies and initiating safe tripping. Users often struggle with configurable thresholds and delays in legacy relays; the CM-ESS.2S addresses this with adjustable hysteresis (3–30% of threshold) and a tripping delay range from instantaneous to 0.1–30 s. Certified for global standards and built for DIN rail mounting, it supports 24–240 V AC/DC supply and 2 SPDT contacts, delivering robust performance in dense panel environments. This makes it a strong fit for automotive, process, and power-distribution applications where reliability and compliance matter.
Product Information
Extended Description
1SVR730830R0400 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 24 - 240 V AC / DC 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.
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
Switzerland (CH)
Lead Time
0 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
EAN
4016779852166
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
0.153 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)
24 ... 240 V AC/DC
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
0.176 kg
Package Level 1 EAN
4016779852166
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)
2712250
E-Number (Norway)
4188084
E-Number (Sweden)
3860619
Feature → Business Impact → Application: The CM-ESS.2S operates on a 24–240 V AC/DC supply, enabling seamless integration into existing control systems without additional power supplies, reducing wiring complexity and cost. This supports faster commissioning and decreases field errors during startup. Feature → Business Impact → Application: Four measuring ranges (3–30 V, 6–60 V, 30–300 V, 60–600 V) ensure precise protection across diverse circuits, improving equipment life and preventing nuisance tripping in variable power environments. Feature → Business Impact → Application: Open-circuit measuring principle and adjustable hysteresis (3–30%) provide stable, predictable operation even with voltage transients, which translates to lower maintenance and fewer process interruptions. Feature → Business Impact → Application: 2 c/o SPDT contacts with rated outputs up to 4 A at 250 V enables straightforward control logic expansion and compatibility with standard relays and PLC inputs, reducing system redesign risks. Feature → Business Impact → Application: Screw connection terminals and double-chamber cage terminals simplify field wiring and enhance vibration resistance in industrial panels, supporting long-term reliability in harsh environments. Feature → Business Impact → Application: 0 s or 0.1–30 s tripping delay, plus a sealable cover accessory, gives installers precise protection timing and secure configuration, minimizing tampering and ensuring regulatory compliance. Feature → Business Impact → Application: DIN rail mounting (TH35) and compact dimensions align with modern panel layouts, enabling higher packing density in control cabinets and easier retrofits. Feature → Business Impact → Application: Compliance with IEC/EN standards and UL/CSA signaling ensures cross-border approvals, reducing supplier qualification time and enabling quicker market deployment. Feature → Business Impact → Application: 2 SPDT output enables versatile control schemes (NC/NO configurations) for interlocking, alarm, and shutdown logic in motor and power circuits, delivering safer and more efficient operations.
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FAQs
Yes. The CM-ESS.2S is designed for DIN rail mounting (TH35-15 or TH35-7.5) and uses screw terminals with double-chamber cage connections, making it easy to drop into standard panel layouts without rewiring existing connections.
The device monitors 24–240 V AC/DC with four measuring ranges: 3–30 V, 6–60 V, 30–300 V, and 60–600 V. Tripping delay is adjustable from instantaneous to 0.1–30 seconds, and hysteresis is adjustable between 3% and 30% of the threshold for stable operation.
Absolutely. With 2 SPDT contacts rated at up to 4 A and 250 V, the CM-ESS.2S supports motor protection interlocks, line monitoring, and interlock logic in power distribution and automation panels, helping prevent damage from voltage excursions.
This relay family aligns with CE and UL/CSA certifications, CB certificates, and RoHS/REACH declarations. It also carries UL/CSA contact ratings and EN/IEC standards for industrial control devices, supporting global deployments and supplier qualification.
The CM-ESS.2S is designed for long electrical and mechanical durability (AC-12 endurance up to 100,000 cycles; 30,000,000 mechanical operations) and offers a sealable cover to prevent tampering. Its configurability reduces nuisance tripping and energy waste, delivering measurable ROI through reduced downtime and closer process control.