Description

ABB SPAU140C Numerical Synchro-Check Relay Introduction & Technical Specifications
Brand: ABB
Model: SPAU140C
Official full product name: Numerical Synchro-Check Relay
Place of origin: Vaasa, Finland
Customs HS Code: 85364900, applicable for electrical protection relays with working voltage within 1000V for circuit control and protection
Dimension and Weight
Overall installation dimension: 200mm × 160mm × 80mm, standard panel embedded installation structure matched with conventional power cabinet installation hole size
Single unit net weight: 3.15kg
Shell material: flame-retardant high-strength engineering plastic with transparent front protective cover, dustproof and anti-scratch design for display area protection

Electrical Voltage and Current Parameters
Auxiliary power supply operating range: alternating current 80VAC~265VAC, direct current 18VDC~80VDC; common standard rated power supply options include 110VAC, 220VAC and 24VDC
Rated secondary input detection voltage: fixed standard 100V and 110V, matched with voltage transformer secondary output of power system
Applicable working frequency: dual adaptive for 50Hz and 60Hz power grids
Static standby operating current: less than 22mA under normal non-action state
External control input operating current range: 2mA~20mA
Built-in overvoltage protection and reverse polarity protection for power input terminals
Precision Measurement Parameters
Voltage measurement accuracy: ±0.2% full-scale range
Frequency detection accuracy: ±0.005Hz
Phase angle measurement resolution: ±0.1°
User programmable action delay time: continuously adjustable from 0 second to 20 seconds
Adjustable voltage difference threshold: 3%~10% of rated input voltage
Adjustable frequency difference threshold: 0.1Hz~0.5Hz
Action response speed: control signal output finished within 10ms once synchronous conditions are fully satisfied
Output Interface and Communication Configuration
Control contact output: two groups of independent SPST relay contacts, each contact rated load: 250VAC/5A, 30VDC/5A
Signal auxiliary contacts: SPDT signal contacts with rated load of 250VAC/5A, used for remote fault alarm feedback
Communication interface: built-in RS485 SPA bus, supporting connection with substation automation system to upload real-time operating data, read fault records and remotely modify protection parameters
External reserved terminals: external locking input terminal and manual reset terminal for clearing relay latch state
Core Functional Characteristics
It is equipped with two completely independent and identical operation stages, which can independently monitor the closing synchronous conditions of two different circuit breakers, and both stages support free switching between synchro-check mode and voltage-check mode; two optional operation modes are continuous monitoring mode and external trigger mode; full-time automatic self-supervision function monitors internal circuit, sensor and operating program in real time, and digital fault codes will be displayed immediately once abnormality occurs; real-time digital display of measured voltage, frequency, phase angle difference and historical action records; it fully complies with international CE EMC anti-interference standards, with built-in hardware filter to restrain surge interference and avoid misoperation; compact embedded installation design is convenient for cabinet layout arrangement; complete event storage function can record multiple recent action logs for later equipment troubleshooting; long mechanical service life exceeds 1 million times, electrical service life exceeds 500,000 times under rated load; the whole machine is suitable for working environment temperature ranging from -25℃ to +55℃.

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Shipping:
1. Your item will be shipped to all countries via EMS, unless one country cannot be shipped via EMS. We will choose DHL, UPS, or FedEx. Please leave us your phone number.
2. We will ship the product to you on the same day or within 1-2 working days after receiving your payment. The shipping time depends on the country/region where you reside, the customs and habits of your country/region, and especially during peak hours.
3. Assuming (assuming) that the item requires payment of tariffs from your country, the buyer is obligated. We are not responsible for any taxes or customs fees in your country/region.

Return Policy:
1. Please contact us before returning the item.
2. The buyer should inform the seller of all returned items within 7 days after receiving the package. We reserve the right to reject any request to inform the seller for more than 7 days.
3. Returned products must have all original packaging and be in good condition.

Response policy:
If you are satisfied with the purchase, please leave us an active response.
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3. Please do not reply with negative feedback before contacting us!

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