2025-06-11 BY
IN Company News

ABB SPAJ110C Product Introduction

Product Description

The ABB SPAJ110C is a digital earth-fault relay designed for selective earth-fault protection in solidly earthed or low-resistance earthed power systems. It can be used as primary or backup protection for feeders, transformers, generators, and motors.

Technical Specifications

表格

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Parameter Value
Product Model SPAJ110C
Manufacturer ABB
Product Type Earth-Fault Relay
Input Voltage 85–265 VAC, 45–65 Hz
Output Voltage 24 VDC
Output Current 10 A
Power Efficiency ≥ 92%
Operating Temperature -25°C to +60°C
Storage Temperature -40°C to +85°C
Dimensions 130 mm (H) x 95 mm (W) x 65 mm (D)
Weight 1.7 kg
Protection Rating IP20
Mounting DIN rail (35 mm) or panel mounting
Compliance CE, UL, IEC 61000-6-2, IEC 61000-6-3
Certifications ISO 9001, CSA

Key Features and Benefits

  • Low-Set Neutral Overcurrent Stage: With definite time or inverse time characteristic.
  • High-Set Neutral Overcurrent Stage: With definite time characteristic.
  • Flexible Configuration: Output relay functions can be freely configured to adapt to different applications.
  • Serial Interface: For connecting the relay to a fiber-optic object bus and substation and network control systems.
  • Continuous Self-Supervision: With auto-diagnostics of hardware and software.
  • Wide Input Voltage Range: Ensures compatibility with various power grids worldwide.
  • High Efficiency: Reduces energy consumption and heat generation, lowering operational costs.
  • Comprehensive Diagnostics: Real-time monitoring of input/output voltages, current levels, and temperature conditions.
  • Robust Design: Wide operating temperature range and IP20 protection rating ensure reliable performance in harsh industrial environments.

Function

The ABB SPAJ110C serves as a critical component in power systems, providing selective earth-fault protection to ensure stable and safe operation of electrical equipment.

Applications

The ABB SPAJ110C is widely used in:
  • Power Generation: For protection of generators and auxiliary equipment.
  • Process Industries: For protection of transformers and motors in chemical and petrochemical plants.
  • Discrete Manufacturing: For protection of motors in production lines.
  • Water and Wastewater Treatment: For protection of pumps and agitators.
  • Transportation: For protection of HVAC and ventilation systems in railways and airports.

Application Fields

  • Industrial Automation: For precise control in manufacturing and production facilities.
  • Process Control: For monitoring and control of chemical, petroleum, and food and beverage processes.
  • Building Automation: For controlling HVAC, lighting, and security systems.
  • Energy Management: For managing power generation, transmission, and distribution systems

SPAJ110C

SPAJ110C