SPAJ140C

Description

ABB SPAJ140C is a high-performance combined overcurrent and ground fault relay used in power systems to protect power lines from short circuits, overloads and ground faults. Here is a detailed description of the product:

ABB SPAJ140C Product description

The ABB SPAJ140C is a relay with integrated overcurrent protection and ground fault protection for power systems that are directly grounded, resistance grounded or impedance grounded. It provides flexible protection solutions, including single-phase, two-phase or three-phase overcurrent protection and directional ground fault protection. In addition, the relay also has the function of circuit breaker failure protection, and supports a variety of communication protocols, which is convenient for data exchange and remote control with the host computer or PLC.

Product parameter

Rated voltage: AC 50/60Hz, 230V.

Maximum current: 100A (single-phase three-wire system).

Operating temperature range: -25℃ to +70℃.

Protection level: IP67.

Communication interface: Supports ABB’s SPAC communication protocol.

Installation method: Suitable for secondary line chamber or low pressure box.

Product specification

Model: SPAJ140C

Series: ABB comprehensive protection relay series.

Size: The exact size varies by model and manufacturer.

Weight: About 10 kg.

series

The SPAJ140C is part of ABB’s comprehensive family of protective relays, known for their high reliability, flexible configuration and high performance for over-current and ground fault protection in low-voltage distribution networks.

trait

Flexible configuration: Supports single-phase, two-phase, or three-phase overcurrent protection and directional ground fault protection.

High-precision measurement: The use of high-precision current measurement technology to ensure the accuracy of the action.

Circuit breaker failure protection: Built-in circuit breaker failure protection to improve system reliability.

Self-check function: Internal fault diagnosis function to ensure reliable operation of equipment.

Communication capability: Supports a variety of communication protocols for remote monitoring and diagnosis.

High flexibility: The working mode can be selected according to different application conditions.

effect

The main functions of ABB SPAJ140C are:

Provides overcurrent protection to prevent short circuit.

Provides ground fault protection to prevent equipment damage caused by ground faults.

Realize circuit breaker failure protection to ensure the stable operation of power system.

use

ABB SPAJ140C is widely used in the following areas:

Power system: Suitable for user terminal substations with voltage levels of 10kV and below.

Construction industry: Used in building distribution networks.

Office distribution network industry: applicable to overhead lines, cable lines, and cable inlet and outlet cabinets.

Industrial automation: Used in industrial control cabinets to protect motors and other electrical equipment.

Application field

Applications for ABB SPAJ140C include, but are not limited to:

Power systems: Short circuit and ground fault protection for radiant feeders.

Industrial automation: motor protection, production line control, etc.

Construction industry: overcurrent and ground fault protection for low-voltage distribution networks.

Commercial buildings: power system protection for shopping malls, hospitals and other places.