ABB G81A019 High-voltage relay

Product Overview

The ABB G81A019 is a high-voltage relay designed for power system protection and control. It is used in high-voltage switchgear, circuit breakers, and relay protection devices. The relay provides precise electrical signal switching and control, suitable for harsh industrial and power environments, ensuring safe and reliable operation of the electrical system.

Technical Specifications

• Model: G81A019

• Product Type: High-Voltage Relay

• Rated Voltage: AC/DC 220–600 V (application dependent)

• Rated Current: Max 5 A (depending on contact type)

• Contact Type: Normally Open (NO) / Normally Closed (NC) optional

• Operate Time: Typically 20–40 ms

• Insulation Withstand Voltage: ≥ 5 kV

• Mechanical Life: ≥ 10^6 operations

• Electrical Life: ≥ 10^5 operations

• Operating Temperature: -25 °C … +70 °C

• Protection Degree: IP20 (standard)

• Mounting: DIN rail or panel mount

• Standards: IEC 60255 series, CE

Advantages and Features

1. High Reliability and Durability
   Suitable for high-voltage industrial environments with long mechanical and electrical life.

2. Fast Response
   Short typical operate time, ideal for relay protection and fast switching control.

3. High Insulation Performance
   High dielectric strength ensures safe and reliable electrical isolation.

4. Flexible Contact Configuration
   NO/NC contacts selectable to meet different control logic requirements.

5. Easy Installation
   Supports DIN rail and panel mounting for use in protection and control cabinets.

Typical Applications

• High-voltage switchgear and circuit breaker control

• Power relay protection systems

• Industrial power monitoring and automation systems

• Power plants and substation control equipment

• Electrical automation and high-voltage control systems

Precautions

1. Verify rated voltage, current, and contact type match the system before installation.

2. Avoid installation in high humidity, corrosive, or overheated environments; use protective measures if needed.

3. Regularly inspect relay status, contacts, and wiring to ensure safe and reliable operation.

4. Disconnect power before operation or maintenance to prevent electric shock or equipment damage.

5. Avoid exceeding rated voltage and load to prolong relay lifespan.

The structure and details of the product：

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