0-55325-28
Description
Model Definition
0-55325-28: Full part number (Gate Driver Board)
Alternative IDs: 05532528, O-55325-28
Status: Discontinued; no direct OEM replacement
Cross-Reference: Exact part match required; no drop-in equivalent
Family Note: 0-55325-x series (e.g., -1=Base Driver, -21=Regulator, -24=Relay Driver, -28=Gate Driver).
Technical Specifications
Form Factor: 3U PCB (≈248 × 171 mm)
Weight: ~0.5 kg
Logic Power: ±15 VDC, +5 VDC
Power Stage: 230/460 VAC, 50/60 Hz
Gate Output: 0–10 VDC / 20 mA (SCR/IGBT gate drive)
Protection: Overcurrent, short-circuit, thermal, gate fault
Operating Temp: 0 °C to +55 °C
Mounting: 3U rack, goldfinger edge connector.
Interfaces & Communication
Backplane: 3U edge connector (control/power)
Power Devices: Screw terminals / direct gate connections
Control Links: Flat cables to regulator/CPU boards
Diagnostics: On-board LEDs (Power, Drive, Fault)
No Network: Hardwired only.
Key Features
High-Current Gate Drive: Optimized for large SCR/IGBT stacks
Fault Detection: Fast overcurrent/short-circuit sensing
Signal Isolation: Opto-isolation between logic and power stages
3U Rack Compatibility: Interchangeable in VVI/GV3000 racks
Compact Layout: Fits standard 3U drive enclosures.
Application
Drive Systems: Reliance VVI (50–150 HP), GV3000 (230/460 VAC)
Industries: Conveyors, pumps, fans, machine tools, material handling
Function: Critical link between control logic and power semiconductors.
Compatibility
Compatible Drives: VVI-50/75/100/150, GV3000 series
Rack: Standard 3U VVI/GV3000 drive rack
Series: Works with other 0-55325-x boards.
Critical Notes
Distinction: Different from -1 (basic driver) and -24 (relay driver); this is a high-power gate driver.
Replacement: No direct substitute; refurbished units are standard.
Availability: Limited stock; lead times vary; price depends on condition.
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