ABB CM-ENS Series Liquid Level Relay -, DIN Rail 1 Voltage Input 240 V-Rated SPDT Relay

View all Level Controllers

Subtotal (1 unit)*

£104.54

(exc. VAT)

£125.45

(inc. VAT)

Add to Basket
Select or type quantity
In Stock
  • Plus 2 unit(s) shipping from 09 February 2026
  • Plus 8 unit(s) shipping from 20 February 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£104.54

*price indicative

RS Stock No.:
135-6327
Mfr. Part No.:
1SVR730850R0200 CM-ENS.21S
Brand:
ABB
Find similar products by selecting one or more attributes.
Select all

Brand

ABB

Product Type

Liquid Level Relay

Number of Inputs

1

Overall Length

113.4mm

Mount Type

DIN Rail

Overall Depth

113.4 mm

Minimum Operating Temperature

-25°C

Terminal Type

Screw

Maximum Operating Temperature

60°C

Maximum Supply Voltage

240V

IP Rating

IP20, IP50

Standards/Approvals

CAN/CSA C22.2 No.14, IEC/EN 60255-27, IEC/EN 60947-5-1, IEC/EN 61000-6-2, IEC/EN 61000-6-3, UL 508

Overall Width

22.5mm

Hazardous Area Certification

No

Current Rating

11 mA

Sensitivity

1000kΩ

Output Type

SPDT Relay

Input Type

Voltage

Series

CM-ENS

Number of Outputs

1

RoHS Status: Exempt

COO (Country of Origin):
DE

ABB Liquid Level Relay, 0.1 to 1000kΩ Sensitivity, 1 Output - CM-ENS Series - 1SVR730850R0200 CM-ENS.21S


You won't feel drained by tank management if you use this liquid level relay from ABB. It controls and regulates liquid levels and you can use the handy device for either overfill or dry-running protection. Simply select the up or down function on the front face of its potentiometer for snappy manual setting. You can tune into its awareness, thanks to adjustable response sensitivity that ensures its accuracy is spot-on. There's little chance of this relay gathering dust, as its IP50-rated housing is protected against airborne contaminants.

Features & Benefits


• Flame-retardant housing so there's no chance of it catching alight in the event of a fire

• Screw terminals for simple wiring with a screwdriver

• EMC immunity provides protection against interference from nearby electronic devices

• Snaps onto a DIN rail for quick and easy installation or removal

Applications


• Bottling plants

• Oil and gas industry

• Well test systems

• Reboilers

What's the expected lifespan of this liquid level relay?


The durable component has a mechanical lifespan of up to 10 million switching cycles so you can rely on its longevity.

CM-ENS Liquid Level Relays


A series of liquid level control relays from ABB for conductive liquids. The CM-ENS range gives a choice of 3 variants each with a compact, space saving housing with the highest fire protection and environmentally friendly materials. Installation is quick and easy using screw or easy-connect terminals and tool free DIN Rail mounting.

Features and Benefits (CM-ENS.1 / CM-ENS.2 / CM-ENS.3)


• 3 LED operational state indication ;• Choices of Easy connect push in terminals or screw terminals;• DIN Rail mountable - no tooling required;• Easy adjustment using front panel;• Cascadable;• Adjustable response sensitivity;• 1 C/O SPDT output contact;• Compact 22.5 mm width

Additional Features CM-ENS.2


• Control of two levels (MIN/MAX);• Front panel adjustment of fill and drain function

Additional Features CM-ENS.31


• Control of two levels (MIN/MAX);• Front panel adjustment of fill and drain function;• 2 C/O SPDT Contacts;• Selectable ON / OFF delay

Applications


• Dry running protection;• Overflow protection ;• Liquid level control

Liquid Level Relays are used to monitor the levels of conductive liquids, and are available in Up/Down, Minimum, Maximum, and Fill/Empty variations. Liquid Level Relays are straightforward to install and safe to use.

Application Examples


Liquid Level Relays (Conductive Level Sensors) are used in a wide variety of applications including waste water management and the monitoring and management of corrosive liquid media, and designed specifically to provide for the:

Monitoring and control of liquid levels

Protection of pumps against dry running

Ability to detect liquid leaks in a system

Control of media mixing ratios

Control of liquid levels

Related links