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ABB 3BHE03905R0101 LTC745A101 Overvoltage Protection Driver Board
| Brand: ABB |
| Item NO: 3BHE03905R0101 LTC745A101 |
| Effect: Continuously collect transmission DC bus voltage and transient surge voltage on the grid side |
| Condition: In stock, brand new/Used |
| Warranty: 365 days |
| Payment:T/T 50% deposit, 50% balance |
| www.szcxdcs.com |
+86 15359298293
ABB 3BHE03905R0101 LTC745A101 Overvoltage Protection Driver Board
LTC745A101 3BHE03905R0101 is an overvoltage protection drive board designed by ABB for medium and high voltage ACS transmission and UNIROL generator excitation systems. It belongs to the core protection board of the power unit. LTC745A101 3BHE03905R0101 adopts rack plug-in installation, integrating multiple functions such as bus voltage sampling, PWM signal processing, thyristor pry bar triggering, and fault diagnosis. Widely used in high-value power equipment such as steel mills, mine hoists, generator sets, and high-power variable frequency drives, it is a key spare part to prevent IGBT/IGCT power devices from burning out due to grid surges and bus overvoltage.
Product features
- Integrated multifunctional design, with four major functions including voltage sampling, pry bar triggering, signal relay, and fault detection, simplifying the internal wiring of the transmission cabinet.
- Ultra fast protection response, pry bar triggering delay up to microseconds, to cope with transient high voltage impacts such as lightning strikes, power grid drops, and load feedback.
- Industrial multi-layer PCB board, coated with three proof insulation paint, resistant to moisture, dust, and slight corrosion, suitable for harsh working conditions in metallurgy and mining.
ABB 3BHE03905R0101 LTC745A101 Overvoltage Protection Driver Board
————————Shenzhen Changxin Automation Equipment Co Ltd -————————
Products that have been released are welcome for consultation. Due to the wide variety of models, we were unable to upload physical images one by one!
Parameter Specifications
| Item | Specification |
|---|---|
| Material No. | 3BHE039905R0101 |
| Model | LTC745A101 |
| Product Type | Voltage Drive Crowbar Control Board |
| Brand | ABB |
| Applicable System | ACS Medium & High Voltage Drives, UNITROL Excitation System |
| Logic Supply Voltage | 24 V DC, tolerance ±20% |
| Crowbar Response Time | Microsecond level overvoltage trigger |
| Isolation Method | Optocoupler + pulse transformer isolation |
| PCB Coating | Conformal three-proof coating |
| Mounting Mode | Backplane plug-in rack installation |
| Overall Dimensions | 220 × 160 × 30 mm |
| Net Weight | 0.45 kg |
| Standard Shipping Weight | 0.8 kg |
| Operating Temperature | -25 ℃ ~ +70 ℃ |
| Storage Temperature | -40 ℃ ~ +85 ℃ |
| Relative Humidity | 5% ~ 90%, non-condensing |
| Protection Class | IP20 (cabinet internal use) |
| Diagnostic Indicator | Power, Run, Overvoltage, Driver Fault LED indicators |
| Communication Interface | Internal backplane bus for fault data upload |
| Certifications | CE, Industrial EMC compliance |
| Origin | Sweden |
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