DC-DC CONVERTERS AND BATTERY CHARGERS
Horizon — three-phase diode and thyristor rectifier bridges, 60–2500 A, 24–690 V
Country: Italy · Model: Horizon
Horizon three-phase rectifier bridges, diode or thyristor, deliver 60–2500 A DC at 24–690 V. They serve electroplating, electrolysis, electrochemical machining, DC heating and large drives.
- Types
- three-phase diode bridge; three-phase thyristor (controlled) bridge
- Purpose
- unidirectional AC to DC converter
- Voltage
- 24–690 V
- Rated current
- 60–2500 A
Technical specifications
| Types | three-phase diode bridge; three-phase thyristor (controlled) bridge |
|---|---|
| Purpose | unidirectional AC to DC converter |
| Voltage | 24–690 V |
| Rated current | 60–2500 A |
| Semiconductor protection | RC networks, fuses with trip microswitch (relay output) |
| Auxiliary supply | 1 phase, 230 V AC, 50 Hz |
| Cooling | forced air, heatsink with cooling tunnel |
| Design | modular aluminium frame, copper parts protected against oxidation, open module for panel mounting |
| Measurement | built-in current transformer optional |
| Maintenance | front phase replacement in ≤10 min, phase weight about 16 kg |
| Approvals | CE, UKCA, EMC |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
The diode bridge is uncontrolled, while the thyristor bridge regulates output voltage by phase angle control. Each semiconductor has an RC network and a fuse, the fuses sit inside the bridge, and their tripping goes to a relay contact. A current transformer for load measurement can be built in on request. The electronics are fully isolated from the power section and run on single-phase 230 V 50 Hz. Cooling is forced air through a tunnel formed by a specially shaped heatsink. The frame is built from aluminium modules, copper busbars are treated against oxidation, and the bridge is an open module for the cabinet backplate. Boards, fuses and thyristors are visible with the front door open, and the front panel shows the circuit and diagnostics. One technician removes a phase of about 16 kg from the front by undoing four screws, no lift truck needed, so replacement and downtime stay within 10 minutes. The bridges meet EMC requirements and carry CE and UKCA marking.
How to choose
A diode bridge gives unregulated rectified voltage and is simpler to maintain. The thyristor version sets output current and voltage smoothly and limits inrush current, so it suits electrolysis and plating with process regulation. Then size the bridge by output current and voltage within 60–2500 A and 24–690 V. For AC loads, such as heaters formerly run by ROT regulators, take REVO C rated 30–2100 A.
Request a price and lead time
Horizon — three-phase diode and thyristor rectifier bridges, 60–2500 A, 24–690 V. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How long does a phase replacement on a Horizon bridge take?
No more than 10 minutes, as one technician removes the phase of about 16 kg from the front by undoing four screws.
What is the difference between the diode and thyristor Horizon bridges?
The diode bridge gives unregulated rectified voltage, while the thyristor bridge regulates output current and voltage by phase angle control and limits start-up current.
How are the thyristors and diodes in Horizon bridges protected?
Each semiconductor has an RC network and a fuse with a trip microswitch reported via a relay contact.
What auxiliary supply does a Horizon bridge need?
Single-phase 230 V 50 Hz, with electronics fully isolated from the power section.
Can the load current of a Horizon bridge be measured?
Yes, a current transformer for load measurement can be built in on request.
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REQUEST
Need a price, lead time or replacement?
Send us a request and we will confirm the configuration, lead time and delivery terms. We reply by email.