Overview
TP-P4 is an airborne power module for tethered UAVs with 680-800VDC input, 50VDC nominal output (47-50.5VDC range), 4kW rated power, 80A rated and 88A maximum current, and 1,000g weight. TethPower TP-P4 is a regulated 4kW airborne power module designed for tethered UAV systems using a high-voltage 680-800VDC transmission architecture. It delivers a stable 50V-class output for aircraft and payload systems that require controlled voltage during long-duration operation.
At approximately 1kg, TP-P4 combines regulated output, forced-air cooling and compact packaging for medium-power industrial UAV applications. It is a practical option where voltage stability is more important than the lower-voltage fixed-ratio architecture used by lighter modules.
Features
- Regulated 50V-class output across a 680-800VDC tether input range
- 80A rated output for 4kW-class industrial UAV loads
- Approximately 1kg airborne weight
- Forced-air cooling with outdoor-oriented IP54 construction
- Input/output protection and automatic recovery for major fault conditions
Key specifications
| Brand | TethPower |
|---|---|
| Model | TP-P4 |
| Input voltage range | 680-800VDC |
| Rated output voltage | 50VDC nominal (47-50.5VDC range) |
| Rated output current | 80A rated, 88A maximum |
| Rated power | 4kW |
| Peak output power | Not specified in current manual |
| Dimensions | 187 × 95 × 70mm ±1mm |
| Weight | 1,000g |
| Protection rating | IP54 |
| Operating temperature | -40°C to +50°C |
| Efficiency | ≥97% |
| Voltage regulation accuracy | ≤±1% |
| Storage temperature | −40°C to +80°C |
| Maximum altitude | 2,000 m |
| Cooling | Integrated forced-air cooling |
| MOQ | 1 unit |
| Warranty | 1 year |
For complete electrical characteristics, protection thresholds, EMC/safety data and connector definitions, refer to the product manual. Contact Stella for the current version.
Applications
- Industrial tethered UAVs
- Aerial lighting
- Surveillance platforms
- Communication relay payloads
- Custom 50V UAV systems
System selection guidance
TP-P4 should be selected as part of the complete tethered UAV power chain, not from the kW rating alone. We review the aircraft battery/DC-bus voltage, continuous and peak demand, payload, tether length, cable voltage drop, operating altitude, temperature and ground-power architecture before confirming a matched configuration.
FAQ about TP-P4
Why choose a regulated module such as TP-P4?
A regulated module maintains a controlled low-voltage output while the tether-side input varies within the approved range. This is useful when the aircraft requires tighter voltage stability.
Is TP-P4 suitable for every 50V drone?
No. Battery voltage range, actual bus limits, continuous and peak power, payload and tether length must all be checked before integration.
What is the peak power of TP-P4?
Rated output is 4 kW. No separate peak-power rating is specified.
Can the module be customized?
Project-specific connector, mounting and system-integration requirements can be reviewed by us before quotation.
Downloads
Product manual
4kW Tethered Drone Power Supply | TP-P4 50V Airborne Module
Need a different voltage, connector or a complete tethered system?Discuss a custom requirement Configure your system
Product support and enquiries
We manufacture tethered UAV power systems and support project-specific system integration and customization.
| Contact | Stella |
|---|---|
| Website | www.tethpower.com |
| stella@ | |
| WhatsApp / Tel | +86 177 1431 2943 |
