ABB 1SVR740850R0100 Liquid Level Monitoring Relay - CE
Part Number: 1SVR740850R0100
Quick Summary
ABB CM-ENS.11P Liquid Level Monitoring Relay detects conductive-fluid levels to protect pumps and prevent tank overflow in industrial applications. Too often, unreliable level sensing leads to costly downtime and maintenance, disrupting production schedules. Certified to CE, UL/CSA, and UKCA with IP50 housing, it combines rugged reliability with open-circuit sensing. Its 24–240 V AC/DC supply and Easy Connect push-in terminals streamline installation, while 3-electrode sensing enables precise level detection—supporting efficient automation and maintenance planning. Designed for conductive fluids, it protects pumps against dry-run and ensures tanks stay within safe levels. With front-face potentiometers for sensitivity and available accessories, installations can be tailored without disassembly. In practice, you gain predictable pump control, reduced energy use, and easier compliance with RoHS, REACH, and SCIP requirements.
Product Information
Extended Description
1SVR740850R0100 ABB: The CM-ENS.11P belongs to the CM liquid level monitoring relay range. It operates with a rated control supply voltage of 24 - 240 V AC/DC and has a 1 c/o (SPDT) output with contacts rated at 250 V / 4 A. It monitors liquid levels of conductive fluids and protects pumps against dry running or tanks against overflow and works according to the open-circuit principle. The sensitivity can be selected via front-face potentiometers. Several electrodes and a sealable transparent cover for protection against unauthorized changes are available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.
EAN
4013614502873
Minimum Order Quantity
1 piece
Customs Tariff Number
85364900
Data Sheet, Technical Information
Data sheet - Liquid level monitoring relays CM-ENS.1x
Instructions and Manuals
Instruction sheet - CM-ENS.xxx Liquid level monitoring relays | Installation instructions - CM-ENS.xxx Liquid level monitoring relays
CAD Dimensional Drawing
Information - 2D and 3D files for CAD systems
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
3
Measuring Range
5 ... 100 kΩ
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
3
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
Nr. Operations 1000000 cycle
Connecting Capacity
Flexible with Ferrule 2x 0.5 ... 1.5 mm² | Flexible with Insulated Ferrule 2x 0.5 ... 1.5 mm² | Flexible 2x 0.5 ... 1.5 mm² | Rigid 2x 0.5 ... 1.5 mm²
Tightening Torque
Control Circuit 0.9 N·m | Main Circuit 1 N·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 °C | Storage -40 ... +85 °C
Maximum Operating Altitude Permissible
Without Derating 2000 m
Conflict Minerals Reporting Template (CMRT)
CMRT - Conflict Minerals Reporting Template
REACH Declaration
REACh Info for Electronic Relays and Controls
RoHS Information
RoHS Declaration of conformity for Electronic Relays and Controls
RoHS Status
Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019
SCIP
969cc11a-4524-4501-b124-181efbdc0ff3 Germany (DE)
Simplified SCIP
9bbfc6db-9111-4656-abc4-af5fc8fafd13 Spain (ES) | c37bbcb6-3d13-4f6a-af5c-a52bcce1497f Hungary (HU) | 069775b9-16ed-4d17-99ad-814aaaacf17c Belgium (BE) | 62778e98-1e54-4d4c-95e1-a9e419adc8be Bulgaria (BG) | b347f30f-b3f8-4a1d-b00e-507a98282214 Germany (DE) | 866a195d-6fde-40ec-8f53-812e884a39d6 Sweden (SE) | eb6bcfdd-467c-4886-9f3a-59eb50acd551 Sweden (SE) | d9b4fb8d-91ac-4f52-b364-8242376d032d France (FR) | ff6ba5cf-99f8-496b-ae8f-f952edceb530 France (FR) | 243c0274-723a-4459-a259-aa463b5947e1 Hungary (HU) | a28116b6-a11c-4aa8-86ba-8762d5cb9989 Portugal (PT) | 8ae7b455-195e-43df-9e2d-e01c70c22194 Greece (GR) | bed11f41-80c3-4e4d-ac47-eb8f39db35d1 Poland (PL) | 2619b5bd-f7cb-40e9-98e8-e5cfb0c2635d Estonia (EE) | 9014d02b-8586-484f-88a6-495062c12b47 Croatia (HR) | d467fd50-0ad5-4b09-989c-d3815d53e3ac Denmark (DK) | 90ba2b28-1d4e-49d7-9ae1-8ac4fa50f20e Czech Republic (CZ) | 930e6b2c-f995-4434-af12-cf1a78f627bd Germany (DE) | 45c1e6eb-c657-456b-9ead-7a94a7e055b2 Netherlands (NL) | daef2564-383c-4c5c-a2e7-9d6615367fba Germany (DE) | ddd511ad-8233-4cc0-acd3-2179461d4c12 Norway (NO) | c295932a-bf58-4f51-b84a-3ed919ad087c Poland (PL) | 43e9c697-413e-425d-8c2d-727fa022850b Italy (IT) | 41a9cd9d-88ec-407d-a6ba-df9655547845 Germany (DE) | da2e71d8-f9a1-45e6-abe6-2b7ab8054671 Finland (FI) | 43874562-82a4-4959-bff7-a7db2412422b Belgium (BE) | 19e5c4d1-76a1-455a-98fc-1cd6e372693a Poland (PL)
Toxic Substances Control Act - TSCA
Toxic Substances Control Act (TSCA) declaration for Electronic Relays and Controls
CQC Certificate
CQC Certificate, Liquid Level Monitoring Relays, CM-ENS.xxx, Made in Germany
cULus Certificate
cULus508_20150627-E140448
Declaration of Conformity - CCC
CCC Declaration of Conformity, Liquid Level Monitoring Relays, CM-ENS.xxx, Made in Germany
Declaration of Conformity - CE
EU Declaration of Conformity - CM-ENS.xxx Liquid level monitoring relay
Declaration of Conformity - UKCA
UK Declaration of Conformity - CM-ENS.xxx Liquid level monitoring relay
DNV GL Certificate
DNV GL Certificate - CM-ENS.xxx Liquid level monitoring relays
Package Level 1 Units
box 1 piece
Package Level 1 Width
97 mm
Package Level 1 Depth / Length
30 mm
Package Level 1 Height
109 mm
Package Level 1 Gross Weight
0.142 kg
Package Level 1 EAN
4013614502873
Object Classification Code
B
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)
2712571
E-Number (Norway)
4189438
Feature: Wide supply voltage 24-240 V AC/DC; Business Impact: Enables seamless integration across regional automation panels and reduces spare parts; Application: Global OEM installations and field upgrades. Feature: 1 c/o SPDT output; Business Impact: Simplifies control logic and wiring, reducing components and panel space; Application: Drives pumps or alarms in water treatment and chemical processing. Feature: Conductive-fluid sensing 5-100 kΩ; Business Impact: Delivers reliable, repeatable level detection even with varying fluid properties; Application: Tank level control for conductive liquids in manufacturing. Feature: 3 electrodes with adjustable front-face sensitivity; Business Impact: Flexible probe configurations and tamper-resistance; Application: Multi-point sensing in large tanks with custom electrode layouts. Feature: Easy Connect screwless terminals; Business Impact: Faster installation and fewer loose connections; Application: Quick field wiring on DIN rails in control panels. Feature: DIN rail mounting on TH35; Business Impact: Saves space and simplifies retrofits; Application: Standardized control cabinet assemblies in automation lines. Feature: IP50 housing and rugged construction; Business Impact: Improved durability in harsh environments; Application: Industrial panels with frequent maintenance. Feature: Accessories including electrodes and sealable cover; Business Impact: Extends lifecycle and protects settings from tampering; Application: SCADA-ready, field-proven level monitoring in process lines.
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FAQs
The CM-ENS.11P is designed for TH35-15 or TH35-7.5 DIN rails. It can be snapped into place in standard control cabinets, with screwless terminals for fast, vibration-resistant wiring. Consider using the compatible electrode accessories for multi-point level sensing and add the sealable cover to prevent adjustments in harsh environments.
Key specs include a 24-240 V AC/DC rated control voltage, SPDT 1 c/o output, and contact ratings up to 4 A at 230 V AC. The device uses an open-circuit principle and supports a measuring range of 5-100 kΩ. Ensure compatible cables (2x 0.5–1.5 mm² or similar ferrule connections) and proper tightening torque for reliable operation.
The CM-ENS.11P carries CE, UKCA, and UL/CSA declarations of conformity, plus CCC and DNV GL certifications in the product family. This certifications mix supports international markets, while RoHS and REACH declarations ensure regulatory alignment. Always verify regional requirements and ensure the corresponding certificates are included with your installation kit.
Ideal for conductive liquids in tanks and pumping circuits, it protects against dry-run and overflow. Typical use cases include water treatment, coolant management, and chemical processing lines. The three-electrode configuration and adjustable sensitivity help tailor detection to fluid properties, reducing false alarms and enabling reliable Level control in automation systems.
Maintenance-free Easy Connect technology minimizes field adjustments and wiring errors, while the robust IP50 housing withstands harsh environments. With a high electrical durability rating (AC-12 up to 100,000 cycles) and a mechanical durability of up to 1,000,000 cycles, you gain predictable reliability, lower downtime, and longer service intervals—translating to lower lifecycle costs and faster ROI for automation projects.