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- Allen Bradley
- 1336-SN-SP16A
- Inverter Snubber PCB
- USA
- 170 × 45 × 110 mm
- 0.45 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Allen Bradley 1336-SN-SP16A Snubber PCB is an internal protection circuit board designed for Allen Bradley 1336 Series Adjustable Frequency AC Drives. It is used within the inverter power circuit to suppress transient voltage spikes generated during semiconductor switching and improve the stability of the drive power section.
During variable frequency drive operation, power switching devices repeatedly change states to regulate motor speed and torque. These rapid switching actions can create electrical overshoot and transient energy. The snubber PCB provides a protective path to absorb and reduce these disturbances, helping minimize stress on critical inverter components.
The 1336-SN-SP16A is mainly used for replacement and maintenance of existing 1336 series drive systems. It is suitable for industrial motor control applications where maintaining reliable operation of legacy AC drive equipment is required.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley |
| Model | 1336-SN-SP16A |
| Series | 1336 Series |
| Product Type | Inverter Snubber PCB |
| Board Type | Printed Circuit Board Assembly |
| Function | Switching Transient Suppression |
| Application | AC Drive Power Circuit Protection |
| Compatible Equipment | Allen Bradley 1336 Series Inverter |
| Dimensions | 170 × 45 × 110 mm |
| Weight | 0.45 kg |
Product Features
The Allen Bradley 1336-SN-SP16A provides protection support for inverter power electronics.
Key features include:
- Designed for Allen Bradley 1336 series drives
- Snubber circuit board assembly
- Helps reduce voltage overshoot during switching
- Protects inverter power components from transient stress
- Supports AC drive repair and replacement
- Compact PCB structure for internal installation
- Suitable for industrial motor control environments
- Improves power circuit operating reliability
- Helps extend service life of switching components
- Supports maintenance of existing automation systems
The board works together with the inverter power stage to maintain stable operation under different motor load conditions.
Working Principle
The 1336-SN-SP16A functions by controlling electrical energy generated during inverter switching operations.
Working process:
Drive Power Section → Switching Devices → Snubber PCB → Motor Control Output
During operation:
- The AC drive converts incoming power into variable frequency output through high-speed switching.
- Switching devices generate temporary voltage spikes and electrical oscillations.
- The snubber circuit absorbs part of the transient energy.
- Voltage stress applied to power semiconductor components is reduced.
- The inverter maintains stable power conversion and motor control performance.
The snubber PCB provides protection but does not perform drive control functions. Motor speed and operating parameters are managed by the inverter control circuitry.
Application in AC Drive Systems
The Allen Bradley 1336-SN-SP16A is installed as a supporting protection component inside compatible inverter assemblies.
| Component | Function |
|---|---|
| Power Switching Module | Controls motor power conversion |
| Snubber PCB | Suppresses electrical transients |
| Main Control Board | Executes drive logic |
| Gate Driver Circuit | Controls switching devices |
| Motor Output Section | Provides variable frequency power |
The snubber board contributes to improved inverter durability by reducing electrical stress during continuous operation.
Industrial Applications
| Industry | Typical Application |
|---|---|
| Manufacturing | Production line motor drives |
| Water Treatment | Pump control systems |
| HVAC | Fan and compressor regulation |
| Material Handling | Conveyor and lifting equipment |
| Process Automation | Variable speed machinery |
| Industrial Facilities | Legacy AC drive maintenance |
The 1336-SN-SP16A is suitable for industrial sites operating Allen Bradley 1336 series frequency converters.
Installation and Maintenance
When replacing the snubber PCB, proper maintenance procedures should be followed.
Recommended practices:
- Remove all power before servicing the drive.
- Verify the replacement board matches the installed inverter model.
- Inspect PCB connectors and mounting hardware.
- Check surrounding power components for signs of overheating or damage.
- Use anti-static protection during handling.
- Test drive operation after replacement.
- Keep maintenance records for future troubleshooting.
Regular inspection of inverter internal components helps prevent unexpected drive failures.
Compatible System Components
The Allen Bradley 1336-SN-SP16A is commonly used with:
| Component | Function |
|---|---|
| Allen Bradley 1336 Series AC Drive | Main inverter platform |
| Power Module Assembly | Power conversion |
| Drive Control PCB | Logic and parameter control |
| Gate Driver Assembly | Switching control |
| Motor Protection Devices | Equipment safety |
| PLC Control System | Drive command and monitoring |
Recommended Related Models
| Model | Product Type | Application |
|---|---|---|
| Allen Bradley 1336-SN-SP16A | Inverter Snubber PCB | 1336 Series drive protection |
| Allen Bradley 1336-SN-SP15A | Inverter Snubber PCB | Power transient suppression |
| Allen Bradley 1336-SN-SP14A | Inverter Snubber PCB | Drive maintenance replacement |
| Allen Bradley 1336-SN-SP10A | Inverter Snubber PCB | Inverter protection circuit |
| Allen Bradley 1336-BDB-SP Series | Drive Power Component | AC drive repair |
Model selection should be based on the specific 1336 drive model, internal hardware configuration, and replacement requirements.
Key Advantages
- Provides transient protection for inverter power circuits
- Reduces stress on switching components
- Supports Allen Bradley 1336 drive maintenance
- Improves electrical stability during operation
- Helps extend service life of power electronics
- Compact PCB assembly design
- Suitable for industrial variable speed drive systems
- Supports long-term operation of legacy equipment
Technical FAQs
What is the function of the Allen Bradley 1336-SN-SP16A?
The 1336-SN-SP16A is a snubber PCB used in Allen Bradley 1336 series drives to suppress switching-related voltage transients and protect inverter power components.
What components does the snubber PCB protect?
It mainly helps protect power switching devices and related inverter circuit components from electrical stress caused by voltage spikes.
Can the 1336-SN-SP16A improve motor control performance?
The snubber PCB does not directly control motor speed, but it helps maintain stable inverter operation by reducing transient disturbances in the power circuit.
Is the 1336-SN-SP16A used as a replacement part?
Yes. It is primarily used for maintenance and replacement in compatible Allen Bradley 1336 series inverter systems.