Manufactured by Yueqing Keldan Technology Co., Ltd. with robust topology, high surge capability, multiple intelligent protections, and flexible OEM customization for global B2B clients.
Produces ultra-clean utility-grade AC power with total harmonic distortion (THD < 3%). Ideal for inductive and sensitive loads.
Cost-efficient power conversion solution designed for general resistive electrical loads, workshop equipment, and vehicle emergency power.
Integrated dual-purpose solution combining an advanced DC-AC power inverter with an automatic multi-stage intelligent utility battery charger.
Comprehensive engineering parameters showing typical ratings across our mainstream industrial power inverters.
| Model Series | Continuous Power | Surge Power | Input DC Voltage | Output AC Voltage | Waveform | Efficiency | Protections |
|---|---|---|---|---|---|---|---|
| OPIP-300W to 1000W | 300W - 1000W | 600W - 2000W | 12V / 24V DC | 110V / 220V AC ±5% | Pure Sine Wave (THD < 3%) | > 90% | Low voltage, Over voltage, Overload, Short circuit, Thermal |
| OPIP-1500W to 3000W | 1500W - 3000W | 3000W - 6000W | 12V / 24V / 48V DC | 110V / 220V / 230V AC | Pure Sine Wave (THD < 3%) | > 92% | Low voltage, Over voltage, Overload, Short circuit, Thermal |
| OPIP-4000W to 6000W | 4000W - 6000W | 8000W - 12000W | 24V / 48V DC | 110V / 220V / 240V AC | Pure Sine Wave (THD < 3%) | > 93% | Dual cooling fans, Complete electrical isolated protection |
| OPIM-300W to 3000W | 300W - 3000W | 600W - 6000W | 12V / 24V DC | 110V / 220V AC ±10% | Modified Sine Wave | > 88% | Soft start, Low battery alarm, Thermal shutdown |
| OPIP-C Series (Charger) | 500W - 4000W | 1000W - 8000W | 12V / 24V / 48V DC | 110V / 220V AC | Pure Sine Wave (UPS) | > 90% | Automatic transfer, Overcharge cut-off, Reverse polarity |
Located in Yueqing, Zhejiang, Yueqing Keldan Technology Co., Ltd. enforces multi-stage testing at every production node. Every inverter undergoes full-load burn-in testing to guarantee zero field failures.
STEP 01
High-precision automated pick-and-place equipment ensures optimal positioning of SMD resistors, capacitors, and microcontrollers.
STEP 02
Multi-zone thermal profile management guarantees solid metallurgical bonding and minimizes void rates in solder joints.
STEP 03
High-speed optical scanning detects misalignments, solder bridging, cold joints, and inverted polarities instantly.
STEP 04
Carefully controlled preparation of power inductors, electrolytic capacitors, and high-wattage transformers prior to insertion.
STEP 05
Certified electronics technicians complete secondary through-hole soldering and power MOSFET heatsink mounting.
STEP 06
Housings, smart cooling fans, input DC terminals, and global standard AC output sockets are fitted securely.
STEP 07
Engineers calibrate AC output frequency (50Hz/60Hz), RMS voltage precision, and test over-current cutoff thresholds.
STEP 08
Every single power inverter is operated under rigorous full-load thermal stress on automated aging racks to screen out early failures.
Transparent views inside our Yueqing assembly lines, aging rooms, and warehousing areas audited by independent third-party inspectors.
With over 18 years in power supply and inverter engineering, Yueqing Keldan Technology Co., Ltd. provides comprehensive design-based and sample-based customization. Whether you require custom input/output voltages, regional AC socket formats, distinct private-label enclosure colors, or specific communication interfaces (RS485/CAN/Bluetooth), our dedicated engineering team turns your requirements into mass-produced reality.
All custom projects are handled directly by senior sales engineers for fast technical documentation, sample turnaround, and strict confidentiality.
Send your specifications, custom voltage needs, target volume, and private labeling requirements. Our engineering and international trading specialists will respond promptly with comprehensive quotes and datasheets.