CM-ENS.21P

Name: CM-ENS.21P
Brand: ABB
SKU: CM-ENS.21P

The ABB CM-ENS.21P liquid level monitoring relay offers reliable and efficient monitoring of liquid levels. It operates with a rated control supply voltage of 24-240 V AC/DC and features adjustable sensitivity from 0.1 to 1000 kΩ. The relay includes easy push-in terminal connections, making it a versatile solution for various industrial applications.

Product ModelCM-ENS.21P

Material Number1SVR740850R0200

Product ID84484

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
1. Reliable OperationThe CM-ENS.21P ensures accurate and reliable monitoring of liquid levels, making it a trusted solution for industrial applications.
2
2. Versatile Voltage RangeWith a rated control supply voltage of 24-240 V AC/DC, this relay can be used in a wide range of environments.
3
3. Adjustable SensitivityThe adjustable sensitivity from 0.1 to 1000 kΩ allows for precise customization to suit different monitoring needs.
4
4. Easy InstallationThe push-in terminal connections make installation and maintenance tool-free, saving time and effort.
5

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

0.117 kg

Function

Filling or draining monitoring

Number of Electrodes

5. Durable DesignConstructed with environmentally friendly materials and high fire protection, the CM-ENS.21P is designed to withstand harsh industrial conditions.

Rated Control Supply Voltage (Us)

24 ... 240 V AC/DC

Rated Frequency (f)

Supply Circuit 50/60 Hz

Output

1 c/o (SPDT) contact

Terminal Type

Screwless 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

12 V 10 mA

Rated Impulse Withstand Voltage (Uimp)

Measuring Circuit / Output Circuit 4 kV Output Circuit 1 / Output Circuit 2 4 kV Supply Circuit / Measuring Circuit 4 kV Supply Circuit / Output Circuit 4 kV

Rated Insulation Voltage (Ui)

Measuring Circuit / Output Circuit 300 V Output Circuit 1 / Output Circuit 2 300 V Supply Circuit / Measuring Circuit 300 V Supply Circuit / Output Circuit 300 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

1000000 cycle

Connecting Capacity

Flexible with Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mmÂ² Flexible 2x 0.5 ... 1.5 mmÂ² Rigid 2x 0.5 ... 1.5 mmÂ²

Tightening Torque

Control Circuit 0.9 NÂ·m Main Circuit 1 NÂ·m

Wire Stripping Length

8 mm Main Circuit 10 mm

Mounting Position

1 ... 5 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 2x 18-16 AWG Rigid 2x 20-16 AWG

Pilot Duty UL/CSA

B300

Ambient Air Temperature

Operation -25 ... +60 Â°C Storage -40 ... +85 Â°C

Maximum Operating Altitude Permissible

Without Derating 2000 m

Object Classification Code

ETIM 7

EC001447 - (Fill) level monitoring relay

ETIM 8

EC001447 - (Fill) level monitoring relay

ETIM 9

EC001447 - (Fill) level monitoring relay

eClass

V11.0 : 27371813

UNSPSC

39122331

E-Number (Finland)

2712572

E-Number (Norway)

4189439

Manufacturer ID

1SVR740850R0200