30kW 380V Input 48VDC Output Integrated Telecom Rectifier System
96% High Efficiency
Introduction of 48VDC Output Integrated Telecom Rectifier System
The 48VDC output integrated telecom rectifier system is a 19-inch
sub-rack power solution from ESTEL, built for high-capacity telecom
and industrial applications that demand dependable DC power. Its
space-efficient design allows for easy integration into central
office shelters, aggregation nodes, and large-scale base station
installations, including 4G/5G macro sites, core network nodes,
industrial communication hubs, and microwave backbone stations.
Operating from a 380VAC three‑phase input, this sub‑rack produces a
regulated ‑48V DC output to supply telecommunications and data
communication equipment with stable power. The three‑phase
architecture inherently promotes balanced loading across the
utility grid, minimizing harmonic distortion and improving overall
power quality. In addition, the configuration enables substantially
higher power delivery compared to single‑phase alternatives—a
critical advantage in high‑density installations. With robust
thermal management and redundant rectifier slots, the system is
purpose‑built for mission‑critical environments where uptime,
efficiency, and long‑term reliability are non‑negotiable.
With a maximum output capacity of 30kW (3kW × 10 modules). It
delivers high efficiency (>96%), supports a wide input voltage
range for grid stability, and features N+1 redundancy to ensure
uninterrupted operation even if a single module fails. The system
incorporates two-tier load shedding with LLVD (for non-critical
loads and BLVD for mission-critical equipment), optimizing battery
energy during power outages.
Specification of 48VDC Output Integrated Telecom Rectifier System
Power Distribution | Input volatage | 380VAC three-phase |
| Input breaker | 1*63A 3P MCB |
| Input frequency | 45~65Hz, rated value: 50Hz/60Hz |
| SPD | 1*20KA, 8/20us SPD, 3P+N |
| AC output | 25A 1P RCCB+socket |
| Output voltage | -43~-58VDC, rated value: -53.5VDC |
| Output capacity | 30kW rectifier power
N+1 redundancy
Rectifier moudle: 10*3000w |
| Battery breaker | 2*125A 2P circuit breaker |
| Load breaker | LLVD: 2*80A/1P+2*63A/1P
BLVD:1*63A/1P+12*32A/1P |
| Rectifier Module | Input voltage | 85VAC～300VAC, rated 220VAC |
| Efficiency | >96% |
| Rated power | 3000W(176~300VAC) |
| Power factor | ≥0.99 |
| THD | ≤5% |
| DC output | –43 ~ –58VDC, rated –53.5VDC, 55A maximum |
Controller of 48VDC Output Integrated Telecom Rectifier System
| Controller | Model: MC2600 |
| Signal input | 3 AI(ambient temperature), 7 DI |
| Alarm output | 6 DO |
| Communication | RS485/SNMP |
| Display | LCD screen |
Applications of 48VDC Output Integrated Telecom Rectifier System
Large 4G/5G base stations with high power consumption
Central office telecom shelters
Aggregation and core network nodes
Industrial communication hubs
Data center edge facilities
Microwave backbone stations
