DG271 Series | Core Connection Solutions for Servo, Frequency Converter & Inverter Power Supplies
DG271 Series | Core Connection Solutions for Servo, Frequency Converter & Inverter Power Supplies
Connect to the Future, the Power Source of Your Equipment
Against the backdrop of rapid iteration in industrial automation and new energy equipment, power supplies for servo drives, frequency converters and inverters serve as the power core of machinery. They continuously operate under harsh working conditions including high voltage, heavy current, high-density installation, vibration from frequent start-stop cycles, and extreme temperature & humidity fluctuations. As fundamental core components for electrical connection, PCB terminal blocks directly determine power output quality, equipment operational safety and overall service life through their current-carrying capacity, stability, wiring efficiency and reliability.
DEGSON DG271 Series PCB terminal blocks feature push-in connection technology, compact size with high load capacity, wide temperature resistance and efficient wiring. They perfectly meet the stringent high-voltage, high-current, high-density and high-reliability connection requirements of servo, frequency converter and inverter power supplies. As the preferred connection solution for power modules in industrial control and new energy sectors, they deliver stable, efficient and safe power transmission for core power circuits.
Core Application Scenarios: Targeted Matching Solutions of DG271 Series
01 Servo Drive Power Supplies: Precise Transmission & Vibration-Resistant Stable Connection
Servo drive power supplies demand low impedance, low heat generation and superior vibration resistance for control signal and power transmission, to guarantee accurate speed/torque control, fast response and smooth operation.
Equipped with push-in self-locking connection, DG271 Series stays tightly clamped under vibration, eliminating poor contact and signal drift caused by frequent startup/shutdown and operational vibration. It flexibly adapts to high-density PCB layout of servo power boards, supports high-current and high-voltage transmission for high-power servo power loops, and accepts conductors up to 35mm² for stable conductivity and reduced voltage drop, effectively improving the efficiency and stability of servo power supplies.
02 Frequency Converter Power Supplies: Heavy-Duty High-Current Operation & High-Temperature Anti-Corrosion Performance
Frequency converter power supplies endure heavy current surges, frequent heat buildup and long-term full-load operation during startup, speed regulation and heavy load switching, which easily lead to terminal overheating, oxidation and excessive contact voltage drop.
DG271 Series adopts a low contact resistance and high-conductivity structure to cut heat generation and enhance heavy-load reliability. With an operating temperature range of -40℃~105℃, it fits the high-temperature enclosed cabinet environment of frequency converters. The push-in wiring method boosts assembly efficiency by 70% compared with screw terminals, drastically shortening production line assembly and after-sales maintenance time. Its robust high-voltage isolation and insulation structure effectively prevent overcurrent, PCB burnout and equipment breakdown induced by defective connections.
03 Inverter Power Supplies: High-Voltage Safety & Long-Term Stable Performance
Inverters (photovoltaic, energy storage, industrial control inverters) require outstanding high-voltage safety, low power loss, long service life and weather resistance, especially for outdoor and high-power applications.
DG271 Series withstands a maximum voltage of 8000V, satisfying safety requirements for DC and AC high-voltage circuits. It supports a current load up to 125A and wire gauges up to 35mm², matching high-power inverter output. Its compact footprint enables tight layout and higher power density of power supplies. Excellent temperature resistance and anti-aging properties ensure no loose connections or overheating during long-term continuous operation, sustaining consistent power output of inverters.
Core Selection Advantages of DG271 Series (Dedicated for Power Supplies)
1. Fast Push-In Wiring, 70% Higher Efficiency
Push-IN connection design requires no tools and locks wires instantly upon insertion. Quick wiring and disassembly greatly raise mass production efficiency and on-site maintenance speed for servo, frequency converter and inverter power supplies.
2. Compact Size with High Power Capacity, Ideal for High-Density Layout
Pitch ranges from 3.5mm to 15.0mm. Despite the small footprint, it delivers exceptional performance:
• Max. Current: 125A
• Max. Voltage: 1000V
• Max. Wire Cross-Section: 35mm²
Optimized for solid single-strand conductors, it resolves the design conflict between compact size, high power and high integration of power modules.
3. Wide Temperature Resistance for Stable Industrial Operation
Operating temperature range: -40℃~105℃. Resistant to extreme heat, cold and vibration, it enables long-term stable operation of servos, frequency converters and inverters in harsh environments including industrial control, energy storage, photovoltaics and new energy vehicles.
4. Safety-Oriented Design for High Voltage & Heavy Current
High insulation strength, sufficient creepage distance and reliable flame retardancy effectively suppress sparking, overheating and breakdown risks, providing ample safety margin for power output.
Common Power Connection Failures & Preventive Solutions by DG271 Series
| Common Failure | DG271 Countermeasure |
| Loose wiring & poor contact | Push-in self-locking + spring clip clamping, anti-vibration and constant stable contact |
| Overheating and ablation under heavy current | Low-resistance conduction & large cross-section capacity, lower temperature rise for enhanced safety |
| Insufficient high-voltage insulation & sparking | High withstand voltage design with reliable insulation and safe isolation |
| Slow wiring & high labor cost | Fast push-in connection improves efficiency by 70%, cutting working hours and wrong wiring risks |
| Narrow temperature range & aging failure | -40℃~105℃ wide temperature range, weather-resistant anti-aging materials for extended service life |
Future Trend: Highly Integrated, Ultra-Reliable & Intelligent Power Connections
As servos, frequency converters and inverters evolve toward higher power, higher frequency, miniaturization and intelligence, power connection systems face stricter demands for greater current-carrying capacity, higher layout density, faster wiring and more stable signal transmission.
Combining push-in technology, high-voltage/high-current performance and wide-temperature stability, DEGSON DG271 Series continuously meets the requirements of next-generation power equipment. It helps manufacturers boost power density, reduce failure rates and shorten delivery cycles, making it a long-term preferred solution for industrial power connections.
Conclusion
Boasting outstanding push-in efficiency, compact high-load capacity, high voltage & high current tolerance and wide-range vibration resistance, DEGSON DG271 Series PCB terminal blocks fully satisfy core connection demands of servo drive, frequency converter and inverter power supplies.
Its core strengths can be summarized as:
More Stable Connection, Higher Current Load, Faster Wiring, Safer Operation.
As the preferred PCB terminal block for industrial control and new energy industries, it ensures reliable equipment operation, connects to the future and serves as the enduring source of power.
