Allen-Bradley 1336-PB-SP8C / SP14C / SP19C / SP23A — Power Control Board | 1336 PLUS & 1336 PLUS II AC Drive Platform
Engineering Background: The Allen-Bradley 1336 PLUS and 1336 PLUS II series represent Rockwell Automation’s flagship general-purpose AC variable frequency drive platform, widely deployed across discrete manufacturing, process control, HVAC, and material handling applications from the 1990s through the 2010s. These drives remain operational in tens of thousands of installed base systems globally, creating sustained demand for verified spare parts to support maintenance, repair, and overhaul (MRO) programs.
Product Positioning: The 1336-PB-SP8C / SP14C / SP19C / SP23A (Rockwell internal reference 74101-181-51) is the main power control board assembly for the 1336 PLUS drive family. It serves as the central intelligence and gate-drive interface between the control logic and the power conversion stage. Konmask.com supplies this board as verified surplus stock, enabling procurement engineers to restore drive functionality without committing to full drive replacement capital expenditure.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Part Numbers | 1336-PB-SP8C · 1336-PB-SP14C · 1336-PB-SP19C · 1336-PB-SP23A |
| Internal Reference | 74101-181-51 |
| Board Function | Power Control Board (Gate Drive & Control Interface) |
| Compatible Drive Series | 1336 PLUS (Series A/B/C), 1336 PLUS II |
| Drive Power Range | 0.37 kW – 448 kW (varies by drive frame) |
| Input Voltage Compatibility | 200–240 V AC / 380–480 V AC / 500–600 V AC (drive-dependent) |
| Communication Interface | Compatible with 1336-GM-x DPI/SCANport adapter modules |
| Mounting | Internal PCB assembly — frame-specific installation |
| Condition | Verified Surplus / Refurbished (tested prior to shipment) |
| Weight | Approx. 300 g |
| Warranty | 90-day functional warranty (Konmask standard) |
Proven Application Environments
- Discrete Manufacturing: Conveyor systems, packaging lines, and assembly automation relying on 1336 PLUS drives for variable-speed motor control
- Process Industries: Pump and fan control in water treatment, chemical processing, and oil & gas facilities
- HVAC & Building Automation: Air handling units and chiller systems with legacy 1336 PLUS installations
- Material Handling: Crane, hoist, and elevator drive systems requiring precise torque and speed regulation
- Food & Beverage: Mixer, extruder, and conveyor drives in hygienic production environments
- MRO & Retrofit Programs: Maintenance teams extending drive service life as an alternative to full drive replacement
Engineering Advantages
- OEM-Equivalent Performance: Direct form-fit-function replacement for the original Rockwell Automation board — no firmware modification required
- Cost Efficiency: Board-level replacement reduces MRO cost by 60–80% versus full drive replacement
- Rapid Availability: In-stock surplus supply eliminates lead times associated with new OEM orders (typically 8–20 weeks)
- Pre-Shipment Testing: Each board undergoes functional verification before dispatch
- Cross-Reference Coverage: Single SKU family covers SP8C / SP14C / SP19C / SP23A variants — confirm your frame size before ordering
- Global Logistics: DHL / FedEx express shipping with full tracking and customs documentation
System Architecture & Signal Flow
Within the 1336 PLUS drive architecture, the power control board occupies the critical interface layer between the main control board (1336-BRF-SP1x series) and the IGBT/transistor power module stack. Its primary functions include:
- Gate Drive Signal Distribution: Translates PWM commands from the control board into isolated gate pulses for each IGBT in the inverter bridge
- Fault Detection & Protection: Monitors overcurrent, overvoltage, and thermal fault signals from the power stage and relays fault codes to the control board
- DC Bus Sensing: Provides real-time DC bus voltage feedback for dynamic braking and ride-through logic
- Precharge Circuit Interface: Coordinates soft-start precharge relay sequencing to protect the DC bus capacitor bank on power-up
- Isolated Power Supply Distribution: Distributes isolated auxiliary voltages to gate drive sub-circuits
Sourcing & Quality Verification
- Source Traceability: Boards sourced from decommissioned OEM installations, authorized surplus dealers, and controlled MRO channels
- Visual Inspection: 100% inspection for PCB damage, burnt components, corrosion, and connector integrity
- Functional Test: Power-on verification and gate drive output signal testing prior to packaging
- Part Number Verification: Label and silkscreen cross-check against Rockwell Automation part number database
- ESD-Safe Packaging: Shipped in anti-static bags with foam cushioning and moisture barrier
- Certificate of Conformance: Available upon request for regulated industries
Procurement Process
- Confirm Compatibility: Verify your drive’s catalog number and series revision against the 1336-PB-SP_C/A part number matrix. Contact our engineering team if uncertain.
- Request a Quote: Submit your RFQ via support@konmask.com or use the store checkout for standard orders.
- Order Confirmation: Stock availability confirmed within 1 business day; pro-forma invoice issued for wire transfer or credit card payment.
- Shipment: Orders dispatched within 2–3 business days via DHL Express or FedEx International Priority.
- Documentation: Commercial invoice, packing list, and optional CoC provided for customs clearance.
- After-Sales Support: 90-day warranty with direct technical support from Konmask engineering team.
Technical FAQ
Q: What is the difference between 1336-PB-SP8C, SP14C, SP19C, and SP23A?
A: These suffixes correspond to different drive frame sizes and power ratings within the 1336 PLUS family. The board PCB design (74101-181-51) is common across variants; the suffix designates the specific drive assembly it is kitted for. Please provide your full drive catalog number for confirmation.
Q: Is this board compatible with the 1336 IMPACT or 1336 FORCE drives?
A: No. The 1336-PB-SP series is specific to the 1336 PLUS and 1336 PLUS II platforms. The 1336 IMPACT and 1336 FORCE use different power board architectures.
Q: Can I install this board myself?
A: Board replacement requires qualified electrical personnel familiar with Rockwell Automation drive service procedures. Refer to Allen-Bradley publication 1336 PLUS Troubleshooting and Maintenance Manual (publication 1336 PLUS-5.2) for detailed procedures. Konmask can provide remote technical guidance.
Q: Do you offer exchange / core return programs?
A: Yes. Contact support@konmask.com to discuss exchange pricing if you have a faulty board to return as a core.
Q: What payment methods are accepted?
A: We accept T/T bank wire transfer, credit card (Visa/Mastercard), and PayPal for international orders.
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