CM-MPx - Three Phase Monitors - ABB Low Voltage & Systems

CAD model selection

Selectable products: 1


Company	ABB Low Voltage & Systems
Description	CM-MPx - Three Phase Monitors
Bill of material	ABB - 1SVR730885R3300 + CM-MPS.21S Three-phase monitoring relay 2c/o, 0,0.1-30s, L1-L2-L3-N=3x180-280VAC
Product ID	1SVR730885R3300
Extended Product Type	CM-MPS.21S
Invoice Description	CM-MPS.21S Three-phase monitoring relay 2c/o, 0,0.1-30s, L1-L2-L3-N=3x180-280VAC
Description	CM-MPS.21S Three-phase monitoring relay
Long Description	The CM-MPS.21S is a multifunctional relay from the CM three-phase monitors range. It operates with a rated control supply voltage / three-phase measuring voltage of 180-280 V AC 50/60 Hz and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. This relay is also suitable to monitor single-phase mains. It monitors all phase parameters such as over/undervoltage, phase unbalance, phase failure as well as an interrupted neutral. The corresponding threshold values are adjustable. Phase sequence monitoring as well as an ON or OFF tripping delay are selectable. The tripping delay is 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	4016779851893
Product number of the Manufacturer	1SVR730885R3300
Type of electric connection	Screw connection
With detachable clamps	false
Rated control supply voltage Us at AC 50HZ	180 - 280	V
Rated control supply voltage Us at AC 60HZ	180 - 280	V
Rated control supply voltage Us at DC	- - -	V
Voltage type for actuating	AC
Phase sequence monitoring	true
Phase failure detection	true
Function under voltage detection	true
Function over voltage detection	true
Phase imbalance monitoring	true
Voltage measuring range	180 - 280	V
Min. adjustable delay-on energization time	0.2	s
Max. permitted delay-on energization time	0.2	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
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-MPS.21S

Procurement

Last update	Jul 25, 2025, 10:00 AM
Part number	1SVR730885R3300

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

Classifications

ETIM 10.0


Phase monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
Voltage measuring range:	180 - 280	V
With detachable clamps:	false
Phase sequence monitoring:	true
Phase failure detection:	true
Function under voltage detection:	true
Function overvoltage detection:	true
Phase imbalance monitoring:	true
Type of electric connection:	Screw connection
Max. permitted delay-on energization time:	0.2	s
Min. adjustable delay-on energization time:	0.2	s
Max. permitted off-delay time:	30	s
Min. adjustable off-delay time:	0.1	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

CNS


Object Properties:
Order Number:	1SVR730885R3300
Description long:	The CM-MPS.21S is a multifunctional relay from the CM three-phase monitors range. It operates with a rated control supply voltage / three-phase measuring voltage of 180-280 V AC 50/60 Hz and has a 2 c/o (SPDT) output with contacts rated at 250 V / 4 A. This relay is also suitable to monitor single-phase mains. It monitors all phase parameters such as over/undervoltage, phase unbalance, phase failure as well as an interrupted neutral. The corresponding threshold values are adjustable. Phase sequence monitoring as well as an ON or OFF tripping delay are selectable. The tripping delay is 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-MPS.21S Three-phase monitoring relay
Manufacturer / brand name:	ABB
Product website:	https://new.abb.com/products/ABB1SVR730885R3300
Customs Tariff Number:	85364900
GTIN-Code:	4016779851893

ETIM 8.0


Phase monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
Voltage measuring range:	180 - 280	V
With detachable clamps:	false
Phase sequence monitoring:	true
Phase failure detection:	true
Function under voltage detection:	true
Function over voltage detection:	true
Phase imbalance monitoring:	true
Type of electric connection:	Screw connection
Rated control supply voltage Us at AC 50HZ:	180 - 280	V
Rated control supply voltage Us at AC 60HZ:	180 - 280	V
Rated control supply voltage Us at DC:	- - -	V
Max. permitted delay-on energization time:	0.2	s
Min. adjustable delay-on energization time:	0.2	s
Max. permitted off-delay time:	30	s
Min. adjustable off-delay time:	0.1	s
Voltage type for actuating:	AC
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


Phase monitoring relay:
Width:	22.5	mm
Height:	85.6	mm
Depth:	103.7	mm
Voltage measuring range:	180 - 280	V
With detachable clamps:	false
Phase sequence monitoring:	true
Phase failure detection:	true
Function under voltage detection:	true
Function over voltage detection:	true
Phase imbalance monitoring:	true
Type of electric connection:	Screw connection
Rated control supply voltage AC 50 Hz:	180 - 280	V
Rated control supply voltage AC 60 Hz:	180 - 280	V
Rated control supply voltage DC:	- - -	V
Max. permitted delay-on energization time:	0.2	s
Min. adjustable delay-on energization time:	0.2	s
Max. permitted off-delay time:	30	s
Min. adjustable off-delay time:	0.1	s
Voltage type for actuating:	AC
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


27-37-18-03 - Asymmetry monitoring equipment:
function over-voltage detection present:	true
max. rated control supply voltage Us:	180 - 280	V
max. voltage measuring range:	180 - 280	V
min. rated control voltage Us with AC 50 Hz:	180 - 280	V
min. rated control voltage Us with AC 60 Hz:	180 - 280	V
min. rated control voltage Us with DC:	- - -	V
min. voltage measuring range:	180 - 280	V
Number of breaking contacts:	0
Number of changers:	2
Number of making contacts:	0
height:	85.6	mm
depth:	103.7	mm
Type of actuation:	AC
Max. response delay:	0.2	s
Max. delay time:	30	s
Min. response delay:	0.2	s
Min. delay time:	0.1	s
detachable terminals present:	false
Design of electrical connection:	Screw connection
width:	22.5	mm
Phase sequence monitoring:	true
Phase failure recognition possible:	true
function undervoltage recognition present:	true
Asymmetry recognition present:	true

No Third-party Cookies supported

ABB - 1SVR730885R3300 + CM-MPS.21S Three-phase monitoring relay 2c/o, 0,0.1-30s, L1-L2-L3-N=3x180-280VAC