Description
The ABB SPAJ140C is a high-performance overcurrent and ground fault relay that is part of ABB’s distribution automation solution for overcurrent and short circuit protection in power systems. Here is a detailed description of the product:
ABB SPAJ140C Product description
The SPAJ140C is a combined overcurrent and ground fault relay for radiant feeders in directly grounded, resistance grounded or impedance grounded power systems. It can provide selective short-circuit protection and ground fault protection, and built-in circuit breaker failure protection.
Product parameter
Rated voltage: AC 100-240V.
Operating voltage range: AC/DC 85-265V.
Maximum control current: 1200A.
Temperature control range: -25℃ to +70℃.
Mechanical dimensions: 132mm x 105mm x 52mm.
Protection class: IP30.
Mounting method: 35mm DIN rail mounting.
Frequency: 50Hz/60Hz.
Product specification
Overcurrent protection: three-phase low setpoint overcurrent unit (IDMT characteristic), with timing or inverse time function.
Ground fault protection: High constant overcurrent unit (IDMT characteristic) with instantaneous or timing function.
Circuit breaker failure protection: Built-in circuit breaker failure protection function.
Communication function: Support for remote communication and data recording.
Self-check function: Built-in fault diagnosis system can automatically detect internal faults.
series
The SPAJ140C is part of ABB’s SPACOM family and is an important part of ABB’s distribution automation solutions.
trait
Flexibility: Flexible tripping and signaling devices allow protection Settings to be adjusted as required.
Reliability: High performance design for a variety of complex power environments.
Ease of use: Simple structure, easy installation, support a variety of protection modes.
Intelligent: Support remote monitoring and data recording, with self-check function.
Function and use
The main role of SPAJ140C is to provide overcurrent and short circuit protection for the power system to ensure the safe operation of the system. Its uses include:
Industrial automation: suitable for factories, water treatment, mining, petrochemical and other industrial fields.
Building power distribution: Used in building power distribution system to protect electrical equipment.
Distribution automation: Radiant feeders and cable lines for distribution networks.
Other applications: such as power plants, substations, subways, hospitals, etc.
Application field
SPAJ140C is widely used in the following fields:
Power industry: substations, power plants, etc.
Industrial fields: factories, water treatment, mining, petrochemical, etc.
Construction industry: commercial buildings, hospitals, shopping malls, etc.
Transportation: Metro.
Municipal facilities: airports, ports, railways, etc.
