0-55325-29
Description
Model Definition
0-55325-29: Full part number (High-Current Gate Driver Board)
Alternative IDs: 05532529, O-55325-29
Status: Discontinued; no direct OEM replacement
Cross-Reference: Exact part match required; no drop-in equivalent
Family Note: 0-55325-x series (-1=Base Driver, -24=Relay Driver, -28=Standard Gate Driver, -29=High-Current Gate Driver).
Technical Specifications
Form Factor: 3U PCB (≈248 × 171 mm)
Weight: ~0.52 kg
Logic Power: ±15 VDC, +5 VDC
Power Stage: 230/460/575 VAC, 50/60 Hz
Gate Output: 0–15 VDC / 30 mA (high-current IGBT/SCR drive)
Protection: Overcurrent, short-circuit, thermal, gate fault, desaturation
Operating Temp: 0 °C to +55 °C
Mounting: 3U rack, goldfinger edge connector.
Interfaces & Communication
Backplane: 3U edge connector (control/power)
Power Devices: Heavy-duty screw terminals for high-current gates
Control Links: Enhanced flat-cable connectors to regulator/CPU boards
Diagnostics: Multi-LED array (Power, Drive, Fault, Desaturation)
No Network: Hardwired only.
Key Features
High-Current Gate Drive: 30 mA output for large IGBT/SCR stacks (vs. 20 mA on -28)
Inverter-Duty Design: Optimized for high-frequency switching and heavy loads
Desaturation Protection: Fast IGBT fault detection for short circuits
Reinforced Isolation: Higher voltage isolation between logic and power stages
3U Rack Compatibility: Interchangeable in VVI/GV3000 racks.
Application
Drive Systems: Reliance VVI (100–200 HP), GV3000 (460/575 VAC, 150–300 HP)
Industries: Heavy conveyors, crushers, extruders, machine tools, material handling
Function: High-power interface between control logic and large power semiconductors.
Compatibility
Compatible Drives: VVI-100/150/200, GV3000 (460/575 VAC)
Rack: Standard 3U VVI/GV3000 drive rack
Series: Works with other 0-55325-x boards.
Critical Notes
Distinction: Upgraded from -28 (standard gate driver); higher current, better protection, for larger drives.
Replacement: No direct substitute; refurbished units are standard solution.
Availability: Very limited stock; longer lead times; premium pricing for tested units.
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