ABB SPAJ115C-DA Ground Fault Relay

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Product Overview

The ABB SPAJ115C-DA is a high-performance Ground Fault Relay used to monitor ground faults and leakage currents in electrical systems. It quickly detects ground currents and triggers alarms or power disconnection, protecting personnel and equipment. It is widely used in industrial power systems, distribution panels, and automation control systems.

Technical Specifications

• Model / Part Number: SPAJ115C-DA

• Type: Ground Fault Relay

• Rated Voltage: 100–240 V AC/DC

• Rated Current: ≤ 5 A

• Detection Current Range: 10 mA ~ 100 A

• Operating Delay: Adjustable, 0.1 s ~ 2 s

• Output Type: Relay NO/NC contacts

• Operating Temperature: -25°C ~ +60°C

• Storage Temperature: -40°C ~ +85°C

• Protection Rating: IP20

• Mounting: DIN rail

• Certification: CE, IEC 60947-2

• Dimensions: ~90 mm × 35 mm × 60 mm

• Weight: ~0.15 kg

Advantages & Features

1. Fast Fault Detection: High-sensitivity sensor quickly detects ground currents.

2. Adjustable Operating Delay: Prevents false trips and enhances system stability.

3. Reliable Protection: Relay output can directly control circuit breakers or alarm systems.

4. Compact Design: Suitable for tight installation in distribution panels.

5. Industrial-Grade Reliability: Resistant to high temperature and interference, suitable for harsh environments.

6. Easy Installation & Maintenance: DIN rail mounting, convenient wiring and replacement.

Application Areas

• Industrial power distribution systems

• Motor and transformer protection

• Automation control systems

• Building electrical safety monitoring

• Energy management and power monitoring systems

• Industrial plant and facility electrical protection

Precautions

1. Ensure the relay’s rated voltage and current match the system requirements.

2. Install in a dry, ventilated environment, avoiding corrosive gases.

3. Handle wiring with ESD protection.

4. Regularly inspect relay and contact status to ensure reliable operation.

5. Avoid disassembling the relay while energized.

6. Follow electrical installation and safety standards.

The structure and details of the product：

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