Your data. Your choice.

If you select «Essential cookies only», we’ll use cookies and similar technologies to collect information about your device and how you use our website. We need this information to allow you to log in securely and use basic functions such as the shopping cart.

By accepting all cookies, you’re allowing us to use this data to show you personalised offers, improve our website, and display targeted adverts on our website and on other websites or apps. Some data may also be shared with third parties and advertising partners as part of this process.

ABB Level monitoring relay

Price in EUR including VAT
Delivered between Fri, 24.7. and Fri, 7.8.
free shipping

input voltage3

Product details

ABB Stotz S&J Level Monitoring Relay CM-ENS.21S

Manufacturer: ABB Stotz S&J
Designation: Level monitoring relay 1 changeover, 0.1-1000 kOhm
Type: CM-ENS.21S
Electrical connection type: Screw connection
Rated control supply voltage Us at AC 50 Hz: 24..240 V
Rated control supply voltage Us at AC 60 Hz: 24..240 V
Rated control supply voltage Us at DC: 24..240 V
Voltage type for operation: AC/DC
With removable terminals: no
Number of electrode inputs: 3
Min. adjustable pick-up delay time: 0 s
Max. permissible pick-up delay time: 0 s
Min. adjustable drop-out delay time: 0 s
Max. permissible drop-out delay time: 0 s
Adjustable response sensitivity: yes
Number of contacts as changeover: 1
Physical measurement principle: conductive
Cascadeable: yes
Width: 22.5 mm
Height: 85.6 mm
Depth: 103.7 mm

The CM-ENS.21S is a relay from the CM family for level monitoring and level control. The rated control supply voltage is 24 - 240 V AC/DC. Output: 1 changeover contact (250 V / 4 A). It monitors and controls levels and mixing ratios of conductive liquids. It is used for filling and emptying applications, for dry running protection of pumps, and for signaling the status of the monitored level. The operating principle and sensitivity can be adjusted using potentiometers located on the front. Various electrodes and a sealable transparent cover to protect against unauthorized adjustments are available as accessories. The device is available with double chamber terminal blocks or push-in terminals. EAN: 4013614502927.

Key specifications

Relay type
Monitoring relay
input voltage
240 V
Output voltage
250 V
Electric current output
4 A
Output current type
AC
Number of poles
1x

General information

Item number
33788079
Manufacturer
ABB
Category
Relays
Manufacturer No.
1SVR730850R0200
Release date
17.5.2023

Relay properties

Relay type
Monitoring relay
input voltage
240 V
Output voltage
250 V
Electric current output
4 A
Output current type
AC
Resistor
100 Ω
Switching function
Changer
Number of closers
1x
Number of poles
1x
Max. Switching capacity
4 kW

Smart home features

Smart home
Not compatible

Origin

Country of origin
Germany

Sustainability

Manufacturer commitment
RE100

Voluntary climate contribution

CO₂ emissions
29,26 kg
Climate contribution
EUR 0,74

Scope of delivery

Scope of delivery
1 pc.

Product dimensions

Length
103.70 mm
Width
22.50 mm
Height
85.60 mm
Weight
125 g

Legal Notice

Product Safety

14-day cancellation right
30-day right of return
24 Months statutory warranty
Legal concerns

Compare products

Goes with

Reviews & Ratings

Statutory warranty score

How often does a product of this brand in the «Relays» category have a defect within the first 24 months?

Source: Galaxus
  • 1.ABB
    0 %
  • 1.Metz Connect
    0 %
  • 1.Phoenix Contact
    0 %
  • 1.Schneider Electric
    0 %
  • 5.Finder
    0,1 %

Statutory warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Galaxus
  • ABB
    Not enough data
  • 1.Shelly
    2 days
  • Aqara
    Not enough data
  • Eaton
    Not enough data
  • Eltako
    Not enough data

Return rate

How often is a product of this brand in the «Relays» category returned?

Source: Galaxus
  • 10.Schneider Electric
    3,3 %
  • 11.Eltako
    3,4 %
  • 12.Aqara
    3,9 %
  • 12.Siemens
    3,9 %
  • 14.ABB
    5,8 %
Source: Galaxus