CM-EFx - Single Phase Monitors - ABB Low Voltage & Systems

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Selectable products: 1


Company	ABB Low Voltage & Systems
Description	CM-EFx - Single Phase Monitors
Bill of material	ABB - 1SVR740750R0400 + CM-EFS.2P Voltage monitoring relay 2c/o, B-C=3-600VRMS, 24-240VAC/DC
Product ID	1SVR740750R0400
Extended Product Type	CM-EFS.2P
Invoice Description	CM-EFS.2P Voltage monitoring relay 2c/o, B-C=3-600VRMS, 24-240VAC/DC
Description	CM-EFS.2P Voltage window monitoring relay
Long Description	The CM-EFS.2P is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V. The CM-EFS.2P offers window (over- and undervoltage) monitoring as well as selection of ON- or OFF-delay, open- or closed-circuit operating principle, with or without latching function. The output contacts can be configured as 1x2 c/o (SPDT) (common signal) or 2x1 c/o (SPDT) (separate signal for minimum and maximum thresholds) operation. The hysteresis is fixed at 5 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.
International product number	4016779876513
Product number of the Manufacturer	1SVR740750R0400
Type of electric connection	Spring clamp connection
With detachable clamps	false
Single-phase under voltage possible	true
Three-phase under voltage possible	false
Single-phase over voltage possible	true
Three-phase over voltage possible	false
Single-phase hysteresis possible	true
Three-phase hysteresis possible	false
Contains function DC-under voltage	true
Contains function DC-over voltage	true
Contains function DC-voltage hysteresis	true
Voltage measuring range 1	3 - 600	V
Voltage measuring range 2	- - -	V
Type of voltage measuring range	AC/DC
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
Response value voltage	3 - 600	V
Min. adjustable delay-on energization time	0	s
Max. permitted delay-on energization time	0	s
Min. adjustable off-delay time	0	s
Max. permitted off-delay time	30	s
Number of contacts as normally closed contact	0
Number of contacts as normally open contact	0
Number of contacts as change-over contact	2
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-EFS.2P

Procurement

Last update	Jul 25, 2025, 10:02 AM
Part number	1SVR740750R0400

All information without guarantee
Last update: Jul 25, 2025, 10:02 AM

Classifications

ETIM 10.0


Voltage monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
With detachable clamps:	false
Single-phase under voltage possible:	true
Three-phase under voltage possible:	false
Single-phase overvoltage possible:	true
Three-phase overvoltage possible:	false
Single-phase hysteresis possible:	true
Three-phase hysteresis possible:	false
Contains function DC-under voltage:	true
Contains function DC overvoltage:	true
Contains function DC-voltage hysteresis:	true
Type of voltage measuring range:	AC/DC
Type of electric connection:	Spring clamp connection
Voltage measuring range 1:	3 - 600	V
Voltage measuring range 2:	- - -	V
Max. permitted delay-on energization time:	0	s
Min. adjustable delay-on energization time:	0	s
Max. permitted off-delay time:	30	s
Min. adjustable off-delay time:	0	s
Response value voltage:	3 - 600	V
Number of contacts as normally closed contact:	0
Number of contacts as normally open contact:	0
Number of contacts as change-over contact:	2

CNS


Object Properties:
Order Number:	1SVR740750R0400
Description long:	The CM-EFS.2P is a single-functional voltage monitoring relay from the CM single-phase monitors range. This monitoring relay operates with a rated control supply voltage of 24 - 240 V AC / DC and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. It provides a RMS measuring principle for DC and AC voltages with 4 measuring ranges: 3-30 V, 6-60 V, 30-300 V and 60-600 V. The CM-EFS.2P offers window (over- and undervoltage) monitoring as well as selection of ON- or OFF-delay, open- or closed-circuit operating principle, with or without latching function. The output contacts can be configured as 1x2 c/o (SPDT) (common signal) or 2x1 c/o (SPDT) (separate signal for minimum and maximum thresholds) operation. The hysteresis is fixed at 5 % of the threshold value. The tripping delay and the start-up delay are adjustable over a range of instantaneous to 30 s (0, 0.1-30 s). A sealable transparent cover for protection against unauthorized changes is available as accessory. The device offers maintenance free Easy Connect Technology with push-in terminals.
Description short:	CM-EFS.2P Voltage monitoring relay
Manufacturer / brand name:	ABB
Product website:	https://new.abb.com/products/ABB1SVR740750R0400
Customs Tariff Number:	85364900
GTIN-Code:	4016779876513

ETIM 8.0


Voltage monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
With detachable clamps:	false
Single-phase under voltage possible:	true
Three-phase under voltage possible:	false
Single-phase over voltage possible:	true
Three-phase over voltage possible:	false
Single-phase hysteresis possible:	true
Three-phase hysteresis possible:	false
Contains function DC-under voltage:	true
Contains function DC-over voltage:	true
Contains function DC-voltage hysteresis:	true
Type of voltage measuring range:	AC/DC
Type of electric connection:	Spring clamp 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 measuring range 1:	3 - 600	V
Voltage measuring range 2:	- - -	V
Max. permitted delay-on energization time:	0	s
Min. adjustable delay-on energization time:	0	s
Max. permitted off-delay time:	30	s
Min. adjustable off-delay time:	0	s
Response value voltage:	3 - 600	V
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:	2

ETIM 9.0


Voltage monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
With detachable clamps:	false
Single-phase under voltage possible:	true
Three-phase under voltage possible:	false
Single-phase over voltage possible:	true
Three-phase over voltage possible:	false
Single-phase hysteresis possible:	true
Three-phase hysteresis possible:	false
Contains function DC-under voltage:	true
Contains function DC-over voltage:	true
Contains function DC-voltage hysteresis:	true
Type of voltage measuring range:	AC/DC
Type of electric connection:	Spring clamp 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
Voltage measuring range 1:	3 - 600	V
Voltage measuring range 2:	- - -	V
Max. permitted delay-on energization time:	0	s
Min. adjustable delay-on energization time:	0	s
Max. permitted off-delay time:	30	s
Min. adjustable off-delay time:	0	s
Response value voltage:	3 - 600	V
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:	2

eclass


27-37-18-01 - Voltage monitoring equipment:
max. response value voltage:	3 - 600	V
max. rated control supply voltage Us:	24 - 240	V
max. voltage measuring range 2:	- - -	V
min. response value voltage:	3 - 600	V
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. voltage measuring range 2:	- - -	V
Number of breaking contacts:	0
Number of changers:	2
Number of making contacts:	0
height:	85.6	mm
Lowest value of measurement range for voltage:	3 - 600	V
depth:	103.7	mm
Type of actuation:	AC/DC
Voltage type of the measurement range:	AC/DC
Greatest value of measuring range for voltage:	3 - 600	V
Max. response delay:	0	s
Max. delay time:	30	s
Min. response delay:	0	s
Min. delay time:	0	s
1-phase window possible:	true
1-phase surge voltage possible:	true
1-phase low voltage possible:	true
3 phase window possible:	false
3-phase surge voltage possible:	false
3-phase low voltage possible:	false
detachable terminals present:	false
direct voltage window possible:	true
direct voltage overvoltage possible:	true
direct voltage undervoltage possible:	true
Design of electrical connection:	Spring clamp connection
width:	22.5	mm

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ABB - 1SVR740750R0400 + CM-EFS.2P Voltage monitoring relay 2c/o, B-C=3-600VRMS, 24-240VAC/DC