Allen-Bradley 1336-QOUT-SP13A – Transistor Output Assembly | 1336 PLUS AC Drive Platform
Engineering Background: The Allen-Bradley 1336 PLUS series represents Rockwell Automation’s established platform for variable-frequency AC drive control in heavy industrial environments. Within the 1336 PLUS drive architecture, the output power stage is the most thermally and electrically stressed subsystem — responsible for converting DC bus voltage into the PWM waveform that drives the motor. The 1336-QOUT-SP13A is the transistor output assembly that occupies this critical position: it contains the IGBT switching devices, gate drive circuitry, and thermal interface components that directly determine drive reliability, output waveform quality, and fault response speed. Failure or degradation of this assembly is the primary cause of drive output-stage faults (F005, F006, F007 class) in field service records.
Product Positioning: The 1336-QOUT-SP13A is a frame-specific spare part for the 1336 PLUS drive family. It is not interchangeable with output assemblies from the 1336 IMPACT or 1336 FORCE series, which use different IGBT configurations and gate drive logic. This assembly is the correct replacement for drives exhibiting output transistor failure, gate drive fault, or thermal runaway conditions. It is not a field-repairable subassembly — replacement at the assembly level is the OEM-recommended corrective action.
Complete Technical Specifications
Electrical
- Assembly Type: Transistor Output (IGBT-based PWM output stage)
- Compatible Drive Series: Allen-Bradley 1336 PLUS
- Output Configuration: 3-phase PWM transistor bridge
- Switching Technology: IGBT (Insulated Gate Bipolar Transistor)
- Gate Drive: Integrated isolated gate drive circuitry
- DC Bus Interface: Direct bus bar connection to drive DC link
- Fault Detection: Overcurrent, short-circuit, desaturation protection integrated
Mechanical
- Part Number: 1336-QOUT-SP13A
- Manufacturer: Allen-Bradley / Rockwell Automation
- Form Factor: Plug-in subassembly, frame-specific mounting
- Approximate Weight: 100 g (shipping configuration)
- Connector Interface: OEM-matched bus and signal connectors
Environmental
- Operating Temperature: Consistent with 1336 PLUS drive enclosure rating (0°C to +50°C ambient)
- Storage Temperature: -40°C to +85°C
- Humidity: 5% to 95% non-condensing
- Pollution Degree: PD2 (per IEC 60664-1, within drive enclosure)
Certifications
- UL Listed (as part of 1336 PLUS drive assembly)
- CE Marked (Low Voltage Directive, EMC Directive)
- RoHS compliance status: verify with current Rockwell Automation product documentation
Data source: Allen-Bradley 1336 PLUS User Manual (Publication 1336 PLUS-5.0), Rockwell Automation Spare Parts Catalog, and field service documentation. Specifications subject to revision — confirm against current Rockwell Automation publications for safety-critical applications.
Proven Application Environments
- Petrochemical Refining: Crude distillation column pump drives | Continuous 24/7 operation at high ambient temperature, frequent thermal cycling due to process load variation
- Power Generation: Coal/gas plant induced draft fan drives | High-inertia load starting, sustained full-load operation, dusty and high-humidity enclosure environments
- Municipal Water Treatment: High-lift pump station VFD systems | Wet environment, corrosive atmosphere, critical uptime requirement with no redundant drive
- Pulp & Paper: Refiner and headbox pump drives | High cyclic load, paper dust contamination, aggressive chemical atmosphere
- Mining & Mineral Processing: Conveyor and crusher drive systems | High shock and vibration, extreme dust, remote location with long lead time for replacement parts
- Automotive Manufacturing: Paint shop conveyor and HVAC drives | Solvent-laden atmosphere, strict uptime SLA, frequent speed reference changes
Engineering Advantages
- For high-ambient-temperature pump rooms, this transistor output assembly maintains thermal margin because the IGBT devices are rated for the full thermal envelope of the 1336 PLUS frame, not derated for a lower-cost substitute.
- For emergency maintenance scenarios with a drive down, this output assembly enables same-day restoration of drive function because it is a direct plug-in replacement requiring no recalibration of drive parameters.
- For sites with limited spare parts inventory, this assembly covers the highest-failure-rate subsystem of the 1336 PLUS drive because output transistor failure accounts for the majority of drive-level field replacements in this product family.
- For procurement engineers managing multi-site spares programs, this part number provides a single SKU that addresses the most common corrective maintenance event across all 1336 PLUS installations.
- For applications with strict power quality requirements, this assembly preserves the original PWM switching characteristics because it uses OEM-specification IGBT devices, not aftermarket substitutes with different switching speed profiles.
- For facilities with IEC/UL compliance obligations, this assembly maintains the drive’s original certification status because it is a Rockwell Automation-catalogued spare part, not a third-party modification.
System Architecture & Signal Flow
Within the 1336 PLUS drive, the control board generates PWM firing signals that pass through the gate drive isolation stage to the 1336-QOUT-SP13A transistor output assembly. The assembly switches the DC bus voltage (rectified from AC input) across the three output phases at the commanded frequency and voltage ratio. Motor current feedback is returned to the control board via current transducers mounted in the drive chassis — not within this assembly. Replacement of this assembly does not require re-entry of motor nameplate data or drive tuning parameters.
Compatible Drive Models: 1336 PLUS (frame-specific — confirm frame size against drive nameplate before ordering). Not compatible with 1336 IMPACT, 1336 FORCE, or PowerFlex series drives, which use different output stage architectures.
Substitution Conditions: No direct cross-series substitute exists. If the 1336 PLUS drive itself is end-of-life and a platform migration is planned, the PowerFlex 755 series is the current Rockwell Automation migration path — however, this requires full drive replacement, not assembly-level substitution.
Sourcing & Quality Verification
Parts offered through Konmask.com are sourced from decommissioned industrial equipment, authorized distributor surplus, and verified secondary market channels. Each unit undergoes the following verification process before listing:
- Visual Inspection: Check for physical damage, burn marks, cracked components, corroded connectors, and missing hardware against OEM reference.
- Part Number Verification: Confirm label, date code, and revision marking against Rockwell Automation catalog data.
- Functional Pre-check: Where test equipment permits, gate drive signal integrity and IGBT continuity are verified prior to shipment.
- Packaging: Anti-static packaging with desiccant; fragile components protected against transit shock.
Documentation available upon request: Part photographs (all six sides), date code confirmation, test records (where available), and certificate of conformance.
Procurement Process
- Confirm Compatibility: Provide drive nameplate data (catalog number, series letter, frame size) via the contact below. Technical staff will confirm the correct part number before order confirmation.
- Place Order: Submit purchase order or inquiry via email or phone. Export documentation, commercial invoice, and packing list are provided for all international shipments.
- Receive & Install: Parts ship within 1–3 business days of order confirmation. Installation guidance references Allen-Bradley publication 1336 PLUS-5.0 (Chapter 4, Output Assembly Replacement Procedure).
Response Commitment: All technical inquiries receive a response within 24 hours (business days, UTC+8). Emergency procurement support is available for plant-down situations — state urgency in subject line.
Technical Support Available: Compatibility confirmation, cross-reference verification, installation procedure guidance, and fault code interpretation for 1336 PLUS drives.
Technical FAQ
Q: Is the 1336-QOUT-SP13A compatible with all horsepower ratings of the 1336 PLUS?
A: No. The 1336 PLUS uses frame-specific output assemblies. The SP13A suffix designates a specific frame and power rating. Confirm the drive’s catalog number and frame designation against the Rockwell Automation spare parts cross-reference before ordering.
Q: Can the 1336-QOUT-SP13A be used as a substitute in a 1336 IMPACT or 1336 FORCE drive?
A: No. The 1336 IMPACT and 1336 FORCE use different output stage designs with incompatible gate drive logic and bus interface geometry. Cross-series substitution is not supported and would create a safety hazard.
Q: Does replacing this assembly affect the drive’s UL or CE certification?
A: Using a Rockwell Automation-catalogued spare part (as opposed to a non-OEM substitute) preserves the drive’s original certification basis. If the installation is subject to third-party inspection, retain the part number label and any available documentation for the inspector’s records.
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