CM-ESS.1S

Name: CM-ESS.1S
Brand: ABB
SKU: CM-ESS.1S

The ABB CM-ESS.1S is a single-functional voltage monitoring relay with adjustable hysteresis, configurable over/undervoltage monitoring, and a 1 c/o (SPDT) contact. It measures DC and AC voltages with 4 ranges (3-30 V, 3-60 A, 30-300 V, 60-600 V) and operates on 24-240 V AC/DC.

Product ModelCM-ESS.1S

Material Number1SVR730830R0300

Product ID85146

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Versatile Voltage MonitoringThe CM-ESS.1S provides reliable monitoring of DC and AC voltages, ensuring precise control and safety in various industrial applications.
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2. Adjustable HysteresisThe device allows adjustable hysteresis within a range of 3 to 30% of the threshold value, ensuring customizable monitoring settings.
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3. Configurable Over/Undervoltage MonitoringThe CM-ESS.1S can be configured for over- or undervoltage monitoring, providing flexibility in monitoring requirements.
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4. High Reliability and DurabilityBuilt with high-quality components, the CM-ESS.1S offers reliable operation and long-lasting performance in harsh environments.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

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

5. Easy Installation and OperationFeaturing screw connection technology and front-face operating controls, the CM-ESS.1S is easy to install and operate, ensuring minimal downtime and maximum efficiency.

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

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

30000000 cycle

Connecting Capacity

Flexible with Ferrule 1x 0.5 ... 2.5 mmÂ² Flexible with Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible with Insulated Ferrule 1x 0.5 ... 2.5 mmÂ² Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible 1x 0.5 ... 2.5 mmÂ² Flexible 2x 0.5 ... 1.5 mmÂ² Rigid 1x 0.5 ... 4 mmÂ² Rigid 2x 0.5 ... 2.5 mmÂ²

Tightening Torque

0.6 ... 0.8 NÂ·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 inÂ·lb

Pilot Duty UL/CSA

B300

Flammability According to UL94

V-0

Ambient Air Temperature

Operation -20 ... +60 Â°C Storage -40 ... +85 Â°C

Maximum Operating Altitude Permissible

Without Derating 2000 m

Object Classification Code

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

Manufacturer ID

1SVR730830R0300