ABB CM-ENS Series Liquid Level Relay - DIN Rail Mount, 110 → 130 V ac, 220 → 240 V ac 1 Voltage Input

  • RS Stock No. 135-6324
  • Mfr. Part No. 1SVR730850R2200
  • Manufacturer ABB
Product overview and Technical data sheets
Legislation and Compliance
RoHS Status: Not Applicable
COO (Country of Origin): DE
Product Details

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


• 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

Attribute Value
Number of Inputs 1
Mounting Style DIN Rail Mount
Supply Voltage 110 → 130 V ac, 220 → 240 V ac
Overall Length 113.4mm
Overall Width 22.5mm
Overall Depth 113.4mm
Minimum Operating Temperature -25°C
Maximum Operating Temperature +60°C
Input Type Voltage
Output Type SPDT Relay
Standards Met 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
Series CM-ENS
Sensitivity 0.1 → 1000 kΩ
Isolation Voltage 300 (Supply Circuit)V
Current Rating 8.5 (220 → 240 V ac) mA, 20 (110 → 130 V ac) mA
Number of Outputs 1
Termination Type Screw
IP Rating IP20 (Terminal), IP50 (Housing)
5 In stock for delivery within 6 working days
Price (VAT excluded) Each
TWD 3,915.00
(exc. GST)
TWD 4,111.00
(inc. GST)
Per unit
1 +