ABB EB144052SPER 1C1-AA Sper 1C1 Relais

ABB EB144052SPER 1C1-AA Sper 1C1 Relais

Details of the module

Model Name: EB144052SPER 1C1-AA
Manufacturer: ABB
Supply Voltage Range: 40–265 V DC
Measuring Current: Approx. 1.5 mA
Residual Voltage (Minimum): > 40 V DC between terminals 11–21
Typical Internal Resistance: Approx. 1.2 kΩ at 48 V DC
Operate Time Delay: Approx. 3 s (fixed)
Reset Time: Approx. 1 s
Output Relay Rated Voltage: 250 V AC / DC
Output Relay Current Rating: 0.15–1 A
Dielectric Test Voltage: 2 kV, 50 Hz (IEC 255-5)
Impulse Withstand Voltage: 5 kV (1.2/50 μs)
High-Frequency Disturbance Immunity: 2.5 kV at 1 MHz
Operating Temperature Range: –10 °C to +55 °C
Storage Temperature Range: –40 °C to +70 °C

ABB EB144052SPER 1C1-AA SPER 1C1 Relay is an industrial-grade trip circuit supervision relay designed by ABB 

for reliable monitoring of essential protection and control circuits in electrical power systems. It continuously 

supervises critical circuits — such as circuit-breaker trip circuits, disconnector control circuits, and signaling lines

 — to detect faults (e.g., open/short circuits, contact failures, loss of auxiliary DC supply) and signal them promptly 

to the protection system, enhancing safety and minimizing downtime in substations and industrial installations.

Frequently asked questions：

Q1: What type of device is the ABB EB144052SPER 1C1-AA?
A1: It is a Sper 1C1 relay used for switching and protection functions in industrial control systems.
Q2: What is the EB144052SPER 1C1-AA supply voltage range for this relay?
A2: The relay operates within a 40–265 V DC supply voltage range.
Q3: What is the typical measuring current of the EB144052SPER 1C1-AA?
A3: The measuring current is approximately 1.5 mA.
Q4: What is the EB144052SPER 1C1-AA residual voltage of the relay?
A4: The minimum residual voltage is greater than 40 V DC between terminals 11–21.
Q5: What is the EB144052SPER 1C1-AA internal resistance of this relay?
A5: The typical internal resistance is approximately 1.2 kΩ at 48 V DC.

Product Applications
Power facilities and substations: It is used to monitor the control circuits of circuit breakers and disconnectors 

within substations. It is a standard component in power system relay protection schemes, used to promptly notify 

of circuit faults (such as poor contact, open circuit, or loss of auxiliary power).
Industrial systems: In the power distribution systems of large factories, mines, or chemical plants, it is used to protect

key motors, transformers, and power supply lines, by monitoring the status of the trip coils to prevent misoperation or 

protect against malfunction.
Medium-voltage/high-voltage digital substations: As part of ABB's digital substation solution, this relay can provide 

immediate feedback on the status of circuit breakers.

Key technical features
Monitoring range: It can detect poor contact, contact adhesion, and auxiliary voltage faults of the monitored circuit.
Voltage range: The auxiliary voltage range of the SPER 1C1 model is 40...265 V DC.
Response design: An action time (Operate Time) is preset to prevent unnecessary alarm signals from being generated 

during the normal operation of the circuit breaker.
Physical compatibility: Its mechanical design is compatible with the COMBIFLEX installation system and is suitable for 

standard relay cabinets.

Claim Your Extra Discount: Contact Sales Manager Lisa Lin for Details

:+86 18965423501     :sales7@amikon.cn     :AMKPLC

About Us
Over the years, we have grown into a trusted global supplier, with operating centers located in Xiamen, China and 

Hong Kong, China. Our business spans the world, with most valued clients based in the Middle East, Europe, the 

UK, Asia, and the United States.
We specialize in a wide range of products from many top brands, including ABB,  GE, Bently Nevada, Siemens, 

Yokogawa, Honeywell, and more – everything from and control systems to sensors, drives, and all components 

in between.
PLCNEW adheres to the following values:
We help keep global production running!
Global presence
Integrity in operations
Rapid response
Quality products at highly competitive prices
We operate on a B2B model, serving engineers, procurement teams, and enterprises that pursue superior quality.

Major Business
ABB: Industrial robot parts of DSQC series,Bailey INFI90, DCS
Honeywell: 51/MU/MC/TC/CC ...
Triconex: 3008/3511/3625/3664/3721/3700A..
Bently Nevada: 3500/3300/330180-Cable..
Foxboro: FBM203/204/217/231, FCP240/270
Woodward: SPC valve position controller, PEAK15 digital controller
Siemens: 6DD/6DP/6ES5/6DR/6GK Series
Westinghouse Series: 1C/5X  ...
General electric: IC693/IC697/IC695/DS200..
Schneider: 140 Series

Our Best-Selling Brand

Disclaimer
Plcnew sells new and surplus products and develops channels to purchase such products.
This site is not approved or endorsed by any of the listed manufacturers or trademarks.
Plcnew is not an authorized distributor, dealer or representative of the products displayed on this site.
All product names, trademarks, brands and logos used on this site are the property of their respective owners.
The description, illustration or sale of products under these names, trademarks, brands and logos is 

for identification purposes only and is not intended to indicate any affiliation with or authorization 

by any rights holder.