- Product details
- Specifications
- Recommand
- Service & Policy
ASSET PROFILE
CM-MPS / CONTROL HARDWARE
ABB
CM-MPS.21S 1SVR730885R3300
Three-Phase Monitoring Relay
MAINS CONDITION MONITORING
Purpose-built support for the installed control architecture
PRODUCT ROLE
Supervises three-phase supply condition and changes two relay outputs when configured limits or phase faults occur.
SYSTEM FIT
Confirm phase-to-neutral voltage, output contact loading, delay logic and terminal wiring before replacement.
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TECHNICAL PLANNING
PERFORMANCE / CONFIGURATION
Performance & Efficiency
A single relay combines phase failure, sequence, overvoltage, undervoltage, unbalance and interrupted-neutral supervision.
Adjustable thresholds and delay timing reduce unnecessary trips while maintaining fast response to genuine supply faults.
Configuration & Programming
Set voltage limits, phase-sequence behavior and ON or OFF delay according to the protected load.
Verify screw-terminal torque, contact duty and neutral connection before returning the feeder to automatic operation.
Specific technical data
MEASURING RANGE
3x180–280VAC
OUTPUT CONTACTS
2 c/o SPDT
CONTACT RATING
250VAC / 4A
OPERATING RANGE
-25 to +60°C
Verify every value, wiring assignment and configured threshold against the installed-system documentation before commissioning.
BRAND & APPLICATIONS
BALANCED FIELD VIEW
Brand characteristics
Protection portfolio
ABB control relays consolidate common mains-monitoring functions.
Compact width
Narrow DIN-rail construction conserves control-panel space.
Adjustable logic
Threshold and timing controls adapt protection to the load.
Clear indication
Front status LEDs simplify supply and relay checks.
Industrial compliance
Documented ratings support consistent panel engineering.
Application fields
Motor feeders
Phase and voltage supervision ahead of industrial motors.
Pump systems
Protection against phase loss and supply imbalance.
HVAC equipment
Three-phase monitoring for compressors and fans.
Process panels
Supply-health interlocking in automation cabinets.
Generator auxiliaries
Mains qualification before enabling connected loads.
Product references
ABB
PM861AK01
PM864AK01
AI810
AO810
DI810
DO810
CI854A
CI867K01
TU810V1
TU830V1
TB840A
SD831
SD832
AI835A
AO845A
DI840
DO840
PM866K01
CI851K01
FI810F
Kurz Instruments
454FTB
454FT
454P
504FTB
504FT
534FTB
534FT
544FT
2440
1550
MD2
MD2-Lite
MFT-B
MFT-S
MFT-E
K-BAR
Series155
Series454
Series504
Series534
SERVICE & POLICY
QUOTATION SUPPORT
Quote
IDENTIFY
Provide CM-MPS.21S 1SVR730885R3300, clear nameplate and connector photos, the installed CM-MPS reference and required quantity.
VERIFY
Confirm host compatibility, wiring, operating conditions, hardware revision and current configuration before replacement.
QUOTE & DELIVERY
State the delivery destination, required date and preferred transport method. Availability, condition, warranty, lead time, protective packing and shipping terms will be checked before quotation.
Disclaimer
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