The 1756-N2 ControlLogix Slot Filler Module from Rockwell Automation is a passive chassis accessory designed to cover and protect unused slots in ControlLogix chassis systems.
Although it contains no active electronics or communication circuitry, the 1756-N2 plays an important role in maintaining proper airflow, reducing dust intrusion, and improving overall cabinet organization inside industrial automation environments. It is commonly used in ControlLogix systems where future expansion capacity is reserved or temporary empty chassis positions need protection.
Its simple but effective design helps improve long-term system reliability in demanding industrial applications.
Technical Specifications (Including Size & Weight)
| Parameter | Specification |
|---|---|
| Model | 1756-N2 |
| Series | ControlLogix Accessories |
| Module Type | Slot Filler Module |
| Function | Covers unused chassis slots |
| Compatibility | ControlLogix chassis systems |
| Installation Method | Direct slot insertion |
| Electrical Function | None (passive accessory) |
| Communication Capability | None |
| Cooling Support | Helps maintain chassis airflow |
| Protection Function | Dust and debris reduction |
| Material | Industrial-grade molded housing |
| Maintenance Requirement | Minimal |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Industrial Environment Rating | Industrial control cabinets |
| Weight | ~0.10–0.20 kg |
Physical Dimensions
- Size (H × W × D): 145 × 35 × 140 mm
The module uses the same external profile as standard ControlLogix modules, allowing a clean and uniform chassis appearance.
Recommended Related Models
The 1756-N2 is commonly used with:
- 1756-A4 / A7 / A10 / A13 / A17 chassis
- 1756-L71 / L73 / L81E controllers
- 1756-EN2T communication modules
- 1756-IB16 / OB16 I/O modules
- 1756-PA75 / PB75 power supplies
Popular Allen-Bradley ControlLogix Accessories
Within the ControlLogix platform, commonly used accessories include:
- 1756-N2 slot filler module
- 1756-CPR2 chassis jumper cable
- 1756-TBNH terminal block
- 1756-TBS6H removable terminal block
- 1756-PA75 / PB75 power supplies
These accessories help improve system organization, reliability, and installation flexibility.
