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

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Company	ABB Low Voltage & Systems
Description	CM-SFx - Single Phase Monitors
Bill of material	ABB - 1SVR730760R0400 + CM-SFS.21S Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC
Product ID	1SVR730760R0400 1SVR730760R0400
Extended Product Type	CM-SFS.21S CM-SFS.21S
Invoice Description	CM-SFS.21S Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC CM-SFS.21S Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC
Description	CM-SFS.21S Current window monitoring rel. CM-SFS.21S Current window monitoring rel.
Long Description	The CM-SFS.21S is a single-functional current 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 currents with 3 measuring ranges: 3-30 mA, 10-100 mA and 0.1-1 A. The CM-SFS.21S offers window (over- and undercurrent) 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 screw connection technology with double-chamber cage connection terminals. The CM-SFS.21S is a single-functional current 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 currents with 3 measuring ranges: 3-30 mA, 10-100 mA and 0.1-1 A. The CM-SFS.21S offers window (over- and undercurrent) 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 screw connection technology with double-chamber cage connection terminals.
International product number	4016779852135 4016779852135
Product number of the Manufacturer	1SVR730760R0400 1SVR730760R0400
Type of electric connection	Screw connection Screw connection
With detachable clamps	false
Single-phase under current possible	true
Three-phase under current possible	false
Single-phase over current possible	true
Three-phase over current possible	false
Single-phase hysteresis possible	true
Three-phase hysteresis possible	false
Contains function DC-voltage under current	true
Contains function DC-voltage over current	true
Function DC-current hysteresis	true
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
Current measuring range	0.1 - 1 0.1 - 1	A
Min. adjustable delay-on energization time	0.1	s
Max. permitted delay-on energization time	30	s
Min. adjustable off-delay time	0.1	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
External current transformer	false
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-SFS.21S CM-SFS.21S

Procurement

Last update	Jul 25, 2025, 10:02 AM
Part number	1SVR730760R0400

Currency:

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

Classifications

CNS


Object Properties:
Order Number:	1SVR730760R0400
Description long:	The CM-SFS.21S is a single-functional current 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 currents with 3 measuring ranges: 3-30 mA, 10-100 mA and 0.1-1 A. The CM-SFS.21S offers window (over- and undercurrent) 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 screw connection technology with double-chamber cage connection terminals.
Description short:	CM-SFS.21S Current monitoring relay
Product website:	https://new.abb.com/products/ABB1SVR730760R0400
Customs Tariff Number:	85364900
GTIN-Code:	4016779852135

ECLASS 12.0


27-37-18-02 - Current monitoring equipment:
width:	22.5
height:	85.6
depth:	103.7
Lowest value of measurement range for current:	0.1 - 1
Greatest value of measuring range for current:	0.1 - 1
external current transformer present:	false
detachable terminals present:	false
1-phase window possible:	true
3 phase window possible:	false
1 phase low current possible:	true
3 phase low current possible:	false
1-phase overload current possible:	true
3-phase overload current possible:	false
direct voltage undercurrent possible:	true
direct voltage overcurrent possible:	true
function direct current window present:	true
Design of electrical connection:	Screw connection
min. rated control voltage Us with AC 50 Hz:	24 - 240
max. rated control supply voltage Us:	24 - 240
min. rated control voltage Us with AC 60 Hz:	24 - 240
min. rated control voltage Us with DC:	24 - 240
Max. response delay:	30
Min. response delay:	0.1
Max. delay time:	30
Min. delay time:	0.1
Type of actuation:	AC/DC
Number of breaking contacts:	0
Number of making contacts:	0
Number of changers:	2

ECLASS 13.0


27-37-18-02 - Current monitoring equipment:
width:	22.5
height:	85.6
depth:	103.7
Greatest value of measuring range for current:	0.1 - 1
Lowest value of measurement range for current:	0.1 - 1
external current transformer present:	false
detachable terminals present:	false
1-phase window possible:	true
3 phase window possible:	false
1 phase low current possible:	true
3 phase low current possible:	false
1-phase overload current possible:	true
3-phase overload current possible:	false
direct voltage undercurrent possible:	true
direct voltage overcurrent possible:	true
function direct current window present:	true
Design of electrical connection:	Screw connection
Max. response delay:	30
Min. response delay:	0.1
Max. delay time:	30
Min. delay time:	0.1
Number of breaking contacts:	0
Number of making contacts:	0
Number of changers:	2

ECLASS 14.0


27-37-18-02 - Current monitoring equipment:

ETIM 8.0


Current monitoring relay:
Width:	22.5
Height:	85.6
Depth:	103.7
Current measuring range:	0.1 - 1
External current transformer:	false
With detachable clamps:	false
Single-phase hysteresis possible:	true
Three-phase hysteresis possible:	false
Single-phase under current possible:	true
Three-phase under current possible:	false
Single-phase over current possible:	true
Three-phase over current possible:	false
Contains function DC-voltage under current:	true
Contains function DC-voltage over current:	true
Function DC-current hysteresis:	true
Type of electric connection:	Screw connection
Rated control supply voltage Us at AC 50HZ:	24 - 240
Rated control supply voltage Us at AC 60HZ:	24 - 240
Rated control supply voltage Us at DC:	24 - 240
Max. permitted delay-on energization time:	30
Min. adjustable delay-on energization time:	0.1
Max. permitted off-delay time:	30
Min. adjustable off-delay time:	0.1
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


Current monitoring relay:
Width:	22.5
Height:	85.6
Depth:	103.7
Current measuring range:	0.1 - 1
External current transformer:	false
With detachable clamps:	false
Single-phase hysteresis possible:	true
Three-phase hysteresis possible:	false
Single-phase under current possible:	true
Three-phase under current possible:	false
Single-phase over current possible:	true
Three-phase over current possible:	false
Contains function DC-voltage under current:	true
Contains function DC-voltage over current:	true
Function DC-current hysteresis:	true
Type of electric connection:	Screw connection
Rated control supply voltage Us at AC 50HZ:	24 - 240
Rated control supply voltage Us at AC 60HZ:	24 - 240
Rated control supply voltage Us at DC:	24 - 240
Max. permitted delay-on energization time:	30
Min. adjustable delay-on energization time:	0.1
Max. permitted off-delay time:	30
Min. adjustable off-delay time:	0.1
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 10.0


Current monitoring relay:
Width:	22.5
Height:	85.6
Depth:	103.7
Current measuring range:	0.1 - 1
External current transformer:	false
With detachable clamps:	false
Single-phase hysteresis possible:	true
Three-phase hysteresis possible:	false
Single-phase under current possible:	true
Three-phase under current possible:	false
Single-phase over current possible:	true
Three-phase over current possible:	false
Contains function DC-voltage under current:	true
Contains function DC-voltage over current:	true
Function DC-current hysteresis:	true
Type of electric connection:	Screw connection
Max. permitted delay-on energization time:	30
Min. adjustable delay-on energization time:	0.1
Max. permitted off-delay time:	30
Min. adjustable off-delay time:	0.1
Number of contacts as normally closed contact:	0
Number of contacts as normally open contact:	0
Number of contacts as change-over contact:	2

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ABB - 1SVR730760R0400 + CM-SFS.21S Current monitoring relay 2c/o, B-C=3mA-1A RMS, 24-240VAC/DC