SLV BL12 / 5002 Soft-Start Power Board – High-Current Protection PCB

The SLV Soft-Start Protection Board is a critical safety component designed for flagship-tier amplifiers like the BL12 and White Series 5002. Because these amplifiers utilize massive power transformers, a direct power-on would cause a huge current spike that could trip breakers or damage internal components. This board manages that "soft" power-up sequence and acts as the primary gatekeeper for the amplifier's electrical system.

Key Features & Build Quality

• Inrush Current Limiting: Utilizes heavy-duty high-wattage thermistors/resistors to safely ramp up power, protecting the main filter capacitors and bridge rectifiers.

• Dual High-Power Relays: Equipped with two industrial-grade T90-style 30A/40A relays (24VDC coils) to handle the sustained high-current draw of 5000W+ amplifiers.

• AC EMI Filtering: Features integrated X-Class safety capacitors and filtering components to reduce electromagnetic interference and ensure clean power delivery.

• Fuse Protection: Includes an onboard high-amp glass fuse holder for immediate catastrophic over-current protection.

• Industrial Connectivity: Features heavy-duty "Faston" spade terminals for secure, high-vibration resistant connection to the AC mains and transformer primaries.

• Robust Design: Built on a thick, high-temperature FR-4 substrate with extra-wide copper traces to handle continuous high-amperage flow without overheating.

Technical Specifications

• Model Compatibility: SLV Black Series BL12 / White Series 5002.

• Relay Rating: 30A/40A 240VAC / 24VDC Coil.

• Protection Logic: Soft-start delay, AC surge suppression, and fuse protection.

• Terminal Type: 6.3mm Quick-connect spade terminals.

• PCB Revision: Optimized for 2U and 3U high-power chassis.

Applications

• Amplifier Power Repair: The standard replacement part for amplifiers that fail to power on or "click" repeatedly without starting.

• Protection Circuit Restoration: Ideal for fixing units where the soft-start resistors have burnt out due to power surges.

• Custom High-Power Projects: A reliable, pre-engineered power management solution for DIY high-output audio transformers.

Safety Warning: This board handles High Voltage AC (110V/220V). Installation should only be performed by a qualified technician. Ensure the amplifier is unplugged for at least 15 minutes to allow the main filter capacitors to discharge before servicing this module.

🚚 Fast & Reliable Delivery Across India

We strive to ensure a smooth and quick delivery experience for all our customers.

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  Same-Day Dispatch: All orders are usually dispatched on the same day, with daily cut-off around 4:00 PM IST.
  
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  Delivery Time: You can expect your order to reach you within 4–5 working days, depending on your location.
  
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  Pan India Shipping: We deliver across all cities and villages in India, so no matter where you are, we’ve got you covered.
  
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  Trusted Courier Partners: Your orders are shipped through reliable logistics partners like DTDC and Delhivery to ensure safe and timely delivery.
  

💡 Whether it’s a metro city or a remote village, you don’t need to worry — we make sure your order reaches you securely.

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