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HR Series · Single-phase

125V DC Single-Phase Industrial Battery Charger (10A–500A)

HR-1P-125V-15…500A

The Hannibal HR-1P-125V is a single-phase 125VDC industrial battery charger that delivers a regulated 10A to 500A DC supply to switchgear, utility control rooms and protection systems.

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Industrial Rectifier
Nominal DC output
125 VDC
Input voltage (AC)
1 x 230V (220 / 240V)
Charge modes
Float, Equalize, Boost (auto & manual)
Rectifier topology
Thyristor-controlled, B6C / 6-pulse
DC voltage range
88–160 VDC
Communication
RS232 / RS485, Modbus RTU, dry contacts

Overview

The Hannibal HR-1P-125V is a single-phase 125VDC industrial battery charger that delivers a regulated 10A to 500A DC supply to switchgear, utility control rooms and protection systems. Combined with a stand-by battery, it forms a reliable DC power supply and battery charger that protects critical 125V loads from voltage dips, brown-outs and complete mains failure.

The charger pairs a galvanic isolation transformer with a thyristor-controlled (B6C / 6-pulse) bridge and DSP control to hold voltage regulation under 1% and output ripple under 1%, even under fluctuating load. An intuitive LCD display with keypad and menu navigation provides a clear front-panel interface for measured-values display, programmable operation parameters, calibration functions and a time-stamped alarm & event logger. Built-in intelligent battery management with float, equalize and boost modes supports lead-acid, Ni-Cd, VRLA, OPzS and OPzV batteries, with each unit carrying a clear equipment label, model info and serial number for traceable service and support.

Key features

  • 125VDC single-phase output, 10A to 500A, for switchgear and utility DC systems.
  • Thyristor-controlled (B6C / 6-pulse) bridge with DSP control, voltage regulation < 1% and ripple < 1%.
  • Galvanic isolation transformer with ripple suppression for clean DC distribution.
  • Built-in intelligent battery management with float, equalize and boost charge modes.
  • LCD display with keypad and menu navigation, measured-values display and analog gauges / indicators (OPS-04).
  • Programmable operation parameters and calibration functions for voltage and current.
  • Alarm & event logger with date and time-stamped logs for preventive maintenance.
  • RS232 / RS485 Modbus RTU communication, dry contact alarm relays and automatic restart after fault.

Technical specification

Input specifications for HR-1P-125V-15…500A
Input voltage (AC)1 x 230V (220 / 240V)

Applications

  • Switchgear and protection relay DC supplies.
  • Utility substations and control rooms.
  • Power generation auxiliary systems.
  • Industrial process control.
  • Backup DC supply for critical 125V loads.

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:

  1. Maintenance-free and vented: OPzS, OPzV, VRLA (valve-regulated), Gel and AGM lead-acid.
  2. Nickel-Cadmium (Ni-Cd) — vented and recombination types.
  3. Lithium-Ion (Li-Ion), Calcium-Ion and Sodium-Ion advanced chemistries.
  4. Battery monitoring system (Hannibal BMS), DC earth fault detection and battery room temperature sensor options.
  5. Compatible with leading battery brands including EnerSys and Exide.
Options & accessories
  1. Alarm & communication interface
  2. Earth leakage monitoring
  3. Gauges for analog measurements.
  4. Output breaker / load dropper module
  5. Battery temperature compensation
  6. Input power measurement.
  7. Transducers (0–10V, 4–20mA)
  8. Active parallel current sharing
  9. Fast-acting semiconductor fuses
  10. Fan failure monitoring.
  11. 12-pulse operation option, IGBT rectifier, harmonic filter, DC shock / DC filter and one-to-four-step dropper diode voltage regulation.
  12. Outdoor equipment and ingress protection: IP42, IP54, IP55 and IP65, with altitude operation up to 2000m and natural cooling on request.
  13. H2S gas compensation for geothermal power plants and the petrochemical industry; anti-seismic design for high-vibration sites.
Standards & compliance
  1. IEC 60146-1-1 / IEC/NF EN 60146-1-1 — Semiconductor converters (basic requirements).
  2. IEC 61204-1, IEC 62040-2 (EMC), IEC 60335 — power supply and safety standards.
  3. ISO 9001, ISO 14001, ISO 27001 management system certifications.
  4. CE marked, compliant with EMC and Low Voltage directives.
  5. Total harmonic distortion (THDi) controlled via 6-pulse, 12-pulse and IGBT topologies; harmonic filter available.
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