HR Series · Single-phase
48V Single-Phase Rectifier & Battery Charger for Telecom & Backup Power (10A–500A)
HR-1P-48V-15…500A
The Hannibal HR-1P-48V is a single-phase 48VDC rectifier and battery charger purpose-built for telecom, data centers and server rooms where a continuous, uninterrupted DC supply is non-negotiable.
- Nominal DC output
- 48 VDC
- Input voltage (AC)
- 1 x 230V (220 / 240V)
- Charge modes
- Float, Equalize, Boost (auto & manual)
- Rectifier topology
- Thyristor-controlled, B6C / 6-pulse
- Communication
- RS232 / RS485, Modbus RTU, optional CANBUS
- DC voltage range
- 36–75 VDC
Overview
The Hannibal HR-1P-48V is a single-phase 48VDC rectifier and battery charger purpose-built for telecom, data centers and server rooms where a continuous, uninterrupted DC supply is non-negotiable. Available from 10A to 500A, it acts as a compact DC UPS — rectifying single-phase AC to a stable 48V DC bus while keeping the standby battery fully charged, so connected loads ride through power interruptions without a break.
A galvanic isolation transformer and thyristor-controlled (B6C / 6-pulse) front end deliver low output ripple, effective ripple suppression and voltage regulation better than 1%, protecting sensitive communication hardware. Float, equalize and boost charge modes with battery temperature compensation extend battery life across VRLA, AGM, Gel, lead-acid and Ni-Cd chemistries from leading brands such as EnerSys and Exide. With RS232 / RS485 Modbus communication, optional CANBUS for current sharing and active parallel current sharing, the HR-1P-48V scales cleanly as telecom and backup-power demands grow.
Key features
- 0148VDC single-phase output, 10A to 500A, optimised for telecom and backup-power DC distribution.
- 02Operates as a DC UPS / AC-DC converter with seamless operation while mains fail.
- 03Thyristor-controlled (B6C / 6-pulse) bridge with DSP control, voltage regulation < 1% and output ripple < 1%.
- 04Galvanic isolation transformer for ripple suppression and full input/output isolation.
- 05Float, equalize and boost charge modes with battery temperature compensation (OPS-06).
- 06Active parallel current sharing (OPS-13) and optional CANBUS for current sharing in redundant systems.
- 07RS232 / RS485 Modbus RTU, dry contact alarm relays and alarm & communication interface (OPS-01).
- 08Soft start, current limiting, short-circuit and over-temperature protection for reliable continuous duty.
Technical specification
| Input voltage (AC) | 1 x 230V (220 / 240V) |
|---|---|
| Power factor | 0.75 / 0.80 nominal (1P) |
| Nominal DC output | 48 VDC |
|---|---|
| DC voltage range | 36–75 VDC |
| Output current | 10A to 500A |
| Voltage regulation | < 1% |
| Output ripple | < 1% RMS |
| Charge modes | Float, Equalize, Boost (auto & manual) |
|---|
| Communication | RS232 / RS485, Modbus RTU, optional CANBUS |
|---|
| Rectifier topology | Thyristor-controlled, B6C / 6-pulse |
|---|---|
| Protection class | IP20 standard, up to IP42 / IP54 on request |
Applications
- Telecommunication networks and base stations.
- Data centers and server rooms (48V DC backup).
- Broadcast and network equipment.
- Renewable and hybrid power auxiliary systems.
- General industrial 48V DC backup and uninterrupted supply.
Options, standards & platform
Battery compatibility
HR Series chargers are fully compatible with sealed and vented batteries across all major chemistries, with intelligent battery management and temperature compensation to extend service life:
- Maintenance-free and vented: OPzS, OPzV, VRLA (valve-regulated), Gel and AGM lead-acid.
- Nickel-Cadmium (Ni-Cd) — vented and recombination types.
- Lithium-Ion (Li-Ion), Calcium-Ion and Sodium-Ion advanced chemistries.
- Battery monitoring system (Hannibal BMS), DC earth fault detection and battery room temperature sensor options.
- Compatible with leading battery brands including EnerSys and Exide.
Options & accessories
- Alarm & communication interface
- Earth leakage monitoring
- Gauges for analog measurements.
- Output breaker / load dropper module
- Battery temperature compensation
- Input power measurement.
- Transducers (0–10V, 4–20mA)
- Active parallel current sharing
- Fast-acting semiconductor fuses
- Fan failure monitoring.
- 12-pulse operation option, IGBT rectifier, harmonic filter, DC shock / DC filter and one-to-four-step dropper diode voltage regulation.
- Outdoor equipment and ingress protection: IP42, IP54, IP55 and IP65, with altitude operation up to 2000m and natural cooling on request.
- H2S gas compensation for geothermal power plants and the petrochemical industry; anti-seismic design for high-vibration sites.
Standards & compliance
- IEC 60146-1-1 / IEC/NF EN 60146-1-1 — Semiconductor converters (basic requirements).
- IEC 61204-1, IEC 62040-2 (EMC), IEC 60335 — power supply and safety standards.
- ISO 9001, ISO 14001, ISO 27001 management system certifications.
- CE marked, compliant with EMC and Low Voltage directives.
- Total harmonic distortion (THDi) controlled via 6-pulse, 12-pulse and IGBT topologies; harmonic filter available.