Megger DDA-3000/ DDA-6000 Universal circuit breaker test
- Maximum current: 60,000 A (DDA-6000)
- Digital signal processing technology used
- Complies with NEMA AB-4 guidelines
- Versatile, programmable current output control
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Description
Latest Innovations in Circuit Breaker Testing Equipment
The Megger DDA-3000 and DDA-6000 Universal Circuit Breaker Test Sets represent the gold standard in the field of circuit breaker testing, featuring the very latest technological advancements for rigorous and efficient testing procedures. Designed specifically for low voltage power and molded-case circuit breakers, these units are built with digital data acquisition, advanced digital control, and superior circuitry. Each test set boasts a compact design, yet delivers exceptional capacity—DDA-3000 and DDA-6000 surpass many comparable models in both performance and reliability. Both test sets are fully compliant with NEMA AB-4 test guidelines, ensuring standardized, safe, and repeatable results. Available globally through the acclaimed tpt24 online store, customers are guaranteed a product that embodies both authenticity and quality, complete with worldwide delivery support.
Precision and Performance: Integrated Testing Capabilities Provided
The DDA-3000 and DDA-6000 models offer integrated test systems capable of simulating overload and fault conditions, providing a variable high-current output that can be precisely tailored to the requirements of each application. The DDA-1 digital data acquisition instrumentation and control system, equipped in both models, utilizes state-of-the-art digital signal processing (DSP) technology to enable accurate measurement and control of output currents. The test sets’ pulse time and firing angle output current control systems offer increased flexibility, making these units versatile solutions for a broad range of testing scenarios, from primary injection testing to verifying current transformer ratios and conducting heat runs on high-voltage breakers.
Unmatched Universality for Breaker and Device Testing
What sets the Megger DDA-3000 and DDA-6000 apart is their remarkable universality. These systems are designed to test virtually any low voltage, molded-case, and metal-clad, direct-acting AC circuit breaker—no matter the brand. Whether dealing with General Electric, Westinghouse, Federal Pacific, Square D, Gould, ABB, ITE, Siemens, or others, these test sets deliver consistent, reliable results. Their robust construction ensures trouble-free operation in practically any environment, giving utilities, manufacturers, and service providers the confidence that these testers will be a central part of their diagnostic and maintenance activities for years to come. Moreover, their comprehensive range of applications makes them ideal for primary injection testing of high voltage breakers and associated protective relays.
Enhanced Safety, Mobility, and User Ergonomics Featured
Megger’s attention to detail extends far beyond test performance: these units are housed in rugged, compact enclosures designed for safety and maneuverability. With features like a low center of gravity, tow rings, lifting eyes, and large locking swivel casters, the DDA-3000 and DDA-6000 are ready to be transported and operated in a wide variety of site conditions. The grounded safety interlock ensures the test chassis is properly earthed before current output can be initiated, prioritizing user safety. The convenient control and instrumentation layout enable operators to monitor tests while observing the breaker under test—improving both ergonomics and efficiency on site.
Advanced Instrumentation and Precise Digital Controls Included
Instrumentation on the DDA-3000 and DDA-6000 test sets is highly advanced. The Model DDA-1 digital data acquisition system provides accurate control of the test set’s output current and high-accuracy metering during breaker testing. The system incorporates a digital ammeter for true RMS current readings and calculation of peak and anticipated RMS values. The digital timer, powered by advanced DSP technology, delivers microsecond timing accuracy, with outputs in cycles or seconds depending on the user’s needs. A digital voltmeter measures both input and output voltage, which is invaluable for diagnostic work, such as contact resistance evaluation. These features give users the ability to conduct highly precise and repeatable breaker and relay tests under various conditions.
Versatile Applications for Multiple Industry Sectors Served
Special emphasis should be placed on the wide array of specific, real-world applications for these test sets. For utilities and industrial maintenance teams, the DDA-3000 and DDA-6000 are indispensable for acceptance, commissioning, and routine maintenance testing of low-voltage power and molded-case circuit breakers. In factories, these devices serve as critical tools for verifying the functionality of thermal, magnetic, and solid-state trip devices embedded in modern circuit protection systems. The sets are also routinely employed for confirming current transformer ratios, running heat tests, and executing primary injection testing on high-voltage breakers and protective relays. Their universal compatibility and programmable features enable users to handle every aspect of breaker testing, regardless of manufacturer or breaker type.
Superior Operational Features, User Convenience, and Accessories
User experience is enhanced further by a blend of operational features and optional accessories designed to streamline testing and maximize reliability. These include a fully digital initiating control circuit with both pulsed and maintained output modes, ensuring versatility to accommodate various testing needs. Zero DC offset initiation eliminates closing-time errors and guarantees precise current waveform control for accurate, repeatable results. For added convenience, an accessory outlet, internal protection systems (including fuses, forced-air cooled SCRs, and emergency stops), and comprehensive input and output configurations (including Megger stab adapters and specialized leads) support a truly turnkey solution. Optional protective covers and autotransformers adapt the testers to unique field circumstances, preserving device longevity and expanding power compatibility.
tpt24: Global Leader in Authentic Megger Solutions
Purchasing the Megger DDA-3000 or DDA-6000 test sets from tpt24 guarantees more than just competitive pricing; it provides the assurance of genuine, factory-authorized equipment delivered anywhere in the world. tpt24 is renowned for unparalleled customer support and a relentless focus on product authenticity, quality, and timely delivery. Whether you require the units for a manufacturing site in Asia, a utility in Europe, or service teams in North America, tpt24 ensures your Megger equipment arrives with comprehensive documentation, full warranty, and the technical support only a world-class distributor can provide. For universal circuit breaker test solutions backed by trust, tpt24 remains the definitive online source for Megger’s flagship test sets.
Specifications
| Parameter | DDA-3000 Series | DDA-6000 Series |
|---|---|---|
| Maximum Output Current (AC) | 35,000 A | 60,000 A |
| Maximum Continuous Current | 4,500 A | 6,250 A |
| Output Adjustability | 0 to maximum, via DSP control | 0 to maximum, via DSP control |
| Application | Up to 3000A breakers | Up to 6000A breakers |
| Control System | Digital Data Acquisition (DDA-1) | Digital Data Acquisition (DDA-1) |
| Digital Ammeter Accuracy | ±1% (cont.), ±2% (peak pulse) | ±1% (cont.), ±2% (peak pulse) |
| Digital Timer Accuracy | ±1% of reading | ±1% of reading |
| Digital Voltmeter Range | 0–600 V, ±1% accuracy | 0–600 V, ±1% accuracy |
| Enclosure Dimensions (HxWxD) | 46x46x28 in (117x117x71 cm) | 46x55x28 in (117x140x71 cm) |
| Weight | 1000 lb (454 kg) | 1200 lb (545 kg) |
| Power Input Options | 380V 50Hz/415V 50Hz/460V 60Hz | 380V 50Hz/415V 50Hz/460V 60Hz/575V 60Hz |
| Output Connections | Megger CBS-1, CBS-2 stab sets | Megger CBS-1, CBS-2 stab sets |
| Protective Features | Fuses, breakers, temp sensors, interlocks | Fuses, breakers, temp sensors, interlocks |
| Mobility | Rugged casters, lifting eyes | Rugged casters, lifting eyes |









