Product Overview
The TH48D30NZ-S-2 is a 1U rack-mount high-frequency switching
rectifier module (DC power supply) from TONHE, engineered for communications and industrial
integrated power systems. It delivers a stable 48V DC output at up
to 30A (1750W maximum) from a compact 1U chassis, with dual input —
AC 176–264V or DC 176–286V — for maximum deployment flexibility.
Conversion efficiency of ≥94% and standby power of ≤5W keep
long-term electricity and cooling costs low. Hot-swap capability,
parallel current sharing (±5%) and RS485 remote monitoring make it
easy to scale capacity and maintain the system without downtime.
Certified CE and ISO9001.
Key Specifications
| Parameter | Specification |
|---|
| Model | TH48D30NZ-S-2 |
| Type | 1U rack-mount high-frequency switching rectifier module |
| Input voltage | AC 176–264V (rated 220V) / DC 176–286V, dual input |
| Output voltage | DC 40–60V adjustable (nominal 48V) |
| Output current | 30A |
| Maximum power | 1750W |
| Voltage regulation accuracy | ±0.5% |
| Source / load effect | 0.1% / 0.5% |
| Efficiency | ≥94% |
| Standby power | ≤5W |
| Current sharing imbalance | ±5% |
| Cooling | Forced-air (fan) cooling |
| Operating temperature | -10°C to +40°C |
| Storage temperature | -40°C to +60°C |
| Audible noise | ≤55 dB |
| Dimensions (L×W×H) | 248 × 110.2 × 44.7 mm (1U) |
| Weight | ≤3 kg |
| Communication | RS485 (remote monitoring) [confirm protocol with factory] |
| Certification | CE, ISO9001 |
| Origin | Hebei, China |
Key Benefits
1. 1U high power density – 1750W in a 248 × 110.2 × 44.7 mm 1U
module: more power per rack unit, ideal for space-constrained
cabinets and capacity upgrades.
2. Dual AC/DC input – Runs on 176–264VAC or 176–286VDC, so one
module fits multiple mains and backup environments — fewer SKUs,
simpler spares.
3. High efficiency, low standby loss – ≥94% conversion efficiency
and ≤5W standby power cut electricity and cooling costs over
long-term operation.
4. Precise regulation, reliable paralleling – ±0.5% voltage
regulation with ±5% current-sharing imbalance for stable output
when modules run in parallel.
5. Multi-protection, maintenance without downtime –
Constant-current limiting, short-circuit protection (no shutdown),
over-temperature protection with auto-restart; hot-swap replacement
while the system stays online.
6. Remote monitoring – RS485 interface integrates with your power monitoring system for remote supervision and control, reducing site visits.
Applications
- Telecom infrastructure – 4G/5G base stations, transmission and
data equipment, core network rooms (–48V DC power).
- Integrated power systems – DC backup power, AC/DC integrated
power cabinets (telecom power plants, data-center UPS companion).
- Data centers & network racks – High-density 48V DC power distribution and equipment cabinets.
- Industrial & general high-density supply – Any equipment
requiring stable 48V output at high power density.
FAQ
Q1. What is the output capability of the TH48D30NZ-S-2?
Rated DC 48V / 30A output with a 1750W maximum; output voltage is
adjustable from 40–60VDC to suit float and equalize charging
settings.
Q2. What input does it accept — AC, DC, or both?
Both. Dual input: AC 176–264V (rated 220V) or DC 176–286V, so it
adapts to different mains and backup power environments.
Q3. Can multiple modules be paralleled for more capacity?
Yes. Modules support parallel current sharing with ≤±5% imbalance,
so you can build larger 48V power systems by adding modules as
capacity grows.
Q4. What are the operating temperature and cooling requirements?
Operating temperature -10°C to +40°C, storage -40°C to +60°C;
forced-air (fan) cooling with intelligent derating, audible noise
≤55dB.
Q5. What protections are included? Does it support hot-swap and
remote monitoring?
Constant-current limiting, short-circuit protection (output does
not shut down) and over-temperature protection with automatic
restart. The module supports hot-swap and RS485 remote monitoring,
so it can be replaced without taking the system offline.
