Product introduction：

The SPAJ110C is a ground fault relay manufactured by ABB that is used in power systems to detect ground faults and provide protection. Here are some of the key features and application scenarios of the relay:
High sensitivity: The SPAJ110C is capable of detecting small currents at ground points, enabling reliable operation even in noisy environments
Fast response: With a fast response time, the fault current can be cut off immediately to prevent further damage
Multiple setting options: Provides a variety of setting options to meet different application requirements
Easy to install: Compact, easy to install and maintain
Technical parameters: The model is SPAJ110C, the supply voltage can be 24 volts DC or 230 volts AC, the rated current is 1A, the ground fault current range is from 30 mA to 2 amps, the response time is not more than 20 ms, the time reset is not more than 0.5 seconds, the relay contact is 1 single pole double throw, the communication interface is RS-485, and the relay contact is not more than 1 pole double throw. It measures 72 mm x 36 mm x 22 mm and weighs 0.2 kg
Specifications: Operating temperature range from -20°C to 55°C, storage temperature range from -40°C to 85°C, humidity from 5% to 95%(non-condensing), with vibration and shock resistance
Application: SPAJ110C can be used in power systems, factories, buildings, data centers, etc., suitable for power industry, manufacturing industry, construction industry, IT industry and other fields
As part of ABB’s Distribution Automation system, the SPAJ110C features continuous self-testing and automatic diagnostic hardware and software, and is CE marked to comply with EMC’s EC directive
It is designed for selective ground fault protection and can be used as primary or backup protection in grounded or low-resistance grounded power systems

The communication interface RS-485 of the PAJ110C ground fault relay works as follows
Communication interface: The SPAJ110C is equipped with an RS-485 communication interface for data exchange and communication with external systems or devices.
Communication capability: RS-485 interface supports multi-point communication, allowing up to 32 devices to be connected on the same bus to achieve parallel transmission of data.
Electrical characteristics: The electrical characteristics of the RS-485 interface specify that the logic “1” is represented by the voltage difference between the two lines as + (2-6) V; The logical “0” is represented by the voltage difference between the two lines as – (2-6) V.
Anti-interference: RS-485 interface adopts differential signal transmission, with strong anti-common-mode interference ability, suitable for use in electromagnetic interference environment.
Transmission rate and distance: The RS-485 interface of the SPAJ110C supports a data transmission rate of up to 10Mbps and a maximum transmission distance of up to 1200 meters, which is suitable for long-distance communication.
Configuration and monitoring: Through the RS-485 interface, you can remotely configure SPAJ110C parameters and monitor its status and fault information.
Communication protocol: The SPAJ110C supports Modbus RTU, a communication protocol widely used in the field of industrial automation.
Installation and maintenance: The connection and configuration of the RS-485 interface are relatively simple, which facilitates on-site installation and maintenance.

About Chengdu Sunshine Xihe Electric Co., Ltd

Chengdu Sunshine Xi He Electric Co., Ltd. specializes in selling the world’s major electrical brand products overseas direct procurement,

genuine inventory, price preferential after-sales warranty, complete models, the same product, not the same price and service.

Large supply of original imported DCS system accessories, PLC system accessories.

Main :ABB, GE Fanuco, Bentl Bentley, Triconex Invensys, Woodward Woodward, Foxboro, Foxboro,

Westinghouse /Emerson, Reliance Ryan, SchneiderModicon, A-B, HIMA dark horse, Motorola MOTOROLA,

Kollmorgen Kollmorgen Bosch/Rexroth/ Bosch Rixon, NI,YOKOGAWA Yokogawa, and other major brands of DCS system accessories,

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