CM-ENx - Liquid Level Monitors and Controls

CAD model selection

Selectable products: 1


Company	ABB Low Voltage & Systems
Description	CM-ENx - Liquid Level Monitors and Controls
Bill of material	ABB - 1SVR730850R0200 + CM-ENS.21S Liquid level monitoring relay 1c/o, sensitivity 0.1-1000kOhm
Product ID	1SVR730850R0200
Extended Product Type	CM-ENS.21S
Invoice Description	CM-ENS.21S Liquid level monitoring relay 1c/o, sensitivity 0.1-1000kOhm
Description	Liquid level monitoring relay
Long Description	The CM-ENS.21S 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. The working principle as well as 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 screw connection technology with double-chamber cage connection terminals.
International product number	4013614502927
Product number of the Manufacturer	1SVR730850R0200
Type of electric connection	Screw connection
Rated control supply voltage Us at AC 50HZ	24 - 240	V
Rated control supply voltage Us at AC 60HZ	24 - 240	V
Rated control supply voltage Us at DC	24 - 240	V
Voltage type for actuating	AC/DC
With detachable clamps	false
Number of inputs for electrodes	3
Min. adjustable operate delay time	0	s
Max. permitted operate delay time	0	s
Min. adjustable off-delay time	0	s
Max. permitted off-delay time	0	s
Response value sensitivity adjustable	true
Number of contacts as normally closed contact	0
Number of contacts as normally open contact	0
Number of contacts as change-over contact	1
Physical measurement principle	Conductive
Cascadable	true
Width	22.5	mm
Height	85.6	mm
Depth	103.7	mm
Customs tariff number	85364900
Deeplink product page	Link to product detail page
Type	CM-ENS.21S

Procurement

Last update	Jul 25, 2025, 10:00 AM
Part number	1SVR730850R0200

All information without guarantee
Last update: Jul 25, 2025, 10:00 AM

Classifications

ETIM 10.0


(Fill) level monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
Cascadable:	true
With detachable clamps:	false
Number of inputs for electrodes:	3
Response value sensitivity adjustable:	true
Type of electric connection:	Screw connection
Max. permitted off-delay time:	0	s
Min. adjustable off-delay time:	0	s
Max. permitted operate delay time:	0	s
Min. adjustable operate delay time:	0	s
Physical measurement principle:	Conductive
Number of contacts as normally closed contact:	0
Number of contacts as normally open contact:	0
Number of contacts as change-over contact:	1

CNS


Object Properties:
Order Number:	1SVR730850R0200
Description long:	The CM-ENS.21S 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. The working principle as well as 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 screw connection technology with double-chamber cage connection terminals.
Description short:	CM-ENS.21S Liquid level monitoring relay
Manufacturer / brand name:	ABB
Product website:	https://new.abb.com/products/ABB1SVR730850R0200
Customs Tariff Number:	85364900
GTIN-Code:	4013614502927

ETIM 8.0


(Fill) level monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
Cascadable:	true
With detachable clamps:	false
Number of inputs for electrodes:	3
Response value sensitivity adjustable:	true
Type of electric connection:	Screw connection
Rated control supply voltage Us at AC 50HZ:	24 - 240	V
Rated control supply voltage Us at AC 60HZ:	24 - 240	V
Rated control supply voltage Us at DC:	24 - 240	V
Max. permitted off-delay time:	0	s
Min. adjustable off-delay time:	0	s
Max. permitted operate delay time:	0	s
Min. adjustable operate delay time:	0	s
Physical measurement principle:	Conductive
Voltage type for actuating:	AC/DC
Number of contacts as normally closed contact:	0
Number of contacts as normally open contact:	0
Number of contacts as change-over contact:	1

ETIM 9.0


(Fill) level monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
Cascadable:	true
With detachable clamps:	false
Number of inputs for electrodes:	3
Response value sensitivity adjustable:	true
Type of electric connection:	Screw connection
Rated control supply voltage AC 50 Hz:	24 - 240	V
Rated control supply voltage AC 60 Hz:	24 - 240	V
Rated control supply voltage DC:	24 - 240	V
Max. permitted off-delay time:	0	s
Min. adjustable off-delay time:	0	s
Max. permitted operate delay time:	0	s
Min. adjustable operate delay time:	0	s
Physical measurement principle:	Conductive
Voltage type for actuating:	AC/DC
Number of contacts as normally closed contact:	0
Number of contacts as normally open contact:	0
Number of contacts as change-over contact:	1

eclass


27-37-18-13 - Level monitoring relay:
max. rated control supply voltage Us:	24 - 240	V
max. permissible pick-up delay time:	0	s
min. rated control voltage Us with AC 50 Hz:	24 - 240	V
min. rated control voltage Us with AC 60 Hz:	24 - 240	V
min. rated control voltage Us with DC:	24 - 240	V
min. permissible pick-up delay time:	0	s
Number of breaking contacts:	0
Number of changers:	1
Number of electrode inputs:	3
Number of making contacts:	0
height:	85.6	mm
depth:	103.7	mm
Type of actuation:	AC/DC
Max. delay time:	0	s
Min. delay time:	0	s
detachable terminals present:	false
Response sensitivity is adjustable:	true
Design of electrical connection:	Screw connection
cascadable:	true
Physical measurement principle of the sensor:	Conductive
width:	22.5	mm

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ABB - 1SVR730850R0200 + CM-ENS.21S Liquid level monitoring relay 1c/o, sensitivity 0.1-1000kOhm