Megger DDA-3000 Universal Circuit Breaker Test Set

Overview

The Megger DDA-3000 is a universal circuit breaker test set designed to accurately test low-voltage power and molded-case circuit breakers equipped with thermal, magnetic, or solid-state trip devices. The compact design integrates transformer circuitry, advanced digital control, and instrumentation to provide high-capacity testing in a small footprint. The DDA-3000 tests virtually all low-voltage, molded-case, and metal-clad direct-acting AC circuit breakers in compliance with NEMA AB-4 test guidelines.

Key Features

• High current output: 35,000 A
• Digital signal processing (DSP) technology
• Variable pulse time and firing angle output current control
• NEMA AB-4 test guideline compliance
• Compact design with high test capacity
• Universal application for molded-case and direct-acting breakers

Applications

• Low-voltage circuit breaker testing
• Molded-case and metal-clad breaker validation
• Thermal, magnetic, and solid-state trip device testing
• Current transformer ratio verification
• Primary injection testing of high-voltage breakers and protective relays
• Heat run testing