ABB EB144043SPER 1C1-AA Sper 1C1 Relay

ABB EB144043SPER 1C1-AA Sper 1C1 Relay

Details of the module

Model Name: EB144043SPER 1C1-AA
Manufacturer: ABB
Supply Voltage Range: 40–265 V DC
Measuring Current: Approx. 1.5 mA
Minimum Residual Voltage: > 40 V DC across monitored terminals
Typical Internal Resistance: Approx. 1.2 kΩ at 48 V DC
Operate Time Delay: Approx. 3 seconds (fixed)
Reset Time: Approx. 1 second
Current Consumption: Approx. 7 mA
Output Relay Rated Voltage: 250 V AC / DC
Dielectric Test Voltage: 2 kV, 50 Hz, 1 minute (IEC standards)
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

The ABB EB144043SPER 1C1-AA SPER 1C1 Relay is a trip circuit supervision relay designed to continuously monitor 

critical control circuits in electrical power systems, such as circuit-breaker trip circuits, disconnector control circuits, 

and signaling circuits. It enhances protection system reliability by detecting faults — including open circuits, bad 

contacts, contact welding, or loss of auxiliary DC voltage — and signaling these conditions promptly. This 

EB144043SPER 1C1-AA relay operates over a wide DC voltage range and is mechanically designed to be 

compatible with ABB’s COMBIFLEX modular system, providing flexible integration into switchgear and control panels.

Frequently asked questions：

1.What shipping methods are used for EB144043SPER 1C1-AA?
Major carriers like FedEx, DHL, and UPS are primarily used for worldwide delivery.
2.Do you provide warranty as standard?
We provide a full 12-month warranty for the EB144043SPER 1C1-AA. So, if you have any problems within 12 months from 

the date of delivery, then you can contact our Team who will be happy to help and explain what your next steps should be.
3.Do you offer global delivery?
Yes. We delivery the EB144043SPER 1C1-AA to the worldwide.  and we are able to quickly deliver parts globally to any 

corner of the world. Unless otherwise specified, we will ship your order via (Fedex). We can also ship through FedEx, 

UPS, and TNT, etc. We can also use your account.

Product Applications
Power Generation Plants
Oil & Gas Industry
Petrochemical Plants
Steel & Metallurgy Industry
Water Treatment & Heavy Industry

Operational Features
Fault Detection: Identifies issues like circuit interruptions, contact welding, high transition resistance, or loss of 

auxiliary voltage.
Visual Indicators: Features a front-panel LED to show relay status.
Output Relay: The output relay is normally energized and drops (de-energizes) if a fault is detected or if the auxiliary 

supply is lost.
Isolation: The supervision circuit is optically isolated from the relay's internal circuitry, allowing for separate voltage 

sources if necessary.

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.
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