

The Allen-Bradley 1756-CFM ControlLogix Chassis Filler Module is a passive, non-electronic component designed to occupy unused slots within a 1756 chassis. In industrial automation systems, empty slots can disrupt airflow, compromise EMC shielding, and collect debris. The 1756-CFM resolves these issues by providing a seamless mechanical barrier that maintains the chassis’s thermal profile and electromagnetic compatibility. It is a mandatory accessory for any ControlLogix system where slot utilization is not 100%, ensuring compliance with Rockwell Automation's design standards. The module is constructed from high-grade, flame-retardant plastic and features a robust latch mechanism for secure retention. No firmware, power supply, or communication cabling is needed – simply insert it into any open slot to complete the chassis assembly. This filler module is ideal for system integrators and maintenance teams seeking to preserve reliability and reduce downtime in critical process control applications.
| Parameter | Specification |
|---|---|
| Product Type | Chassis Filler Module |
| Series | ControlLogix |
| Model Number | 1756-CFM |
| Compatible Chassis | All 1756-A4, 1756-A7, 1756-A10, 1756-A13, 1756-A17 |
| Material | Flame-retardant thermoplastic (UL 94 V-0 rated) |
| Weight | Approx. 0.05 kg (0.11 lb) |
| Dimensions (H x W x D) | 144 mm x 36 mm x 128 mm (5.67 in x 1.42 in x 5.04 in) |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Storage Temperature | -40°C to +85°C (-40°F to 185°F) |
| Relative Humidity | 5% to 95% non-condensing |
| Shock Rating | 30 g operational, 50 g non-operational |
| Vibration Rating | 2 g Standard Models 10–500 Hz |
| EMC Shielding | Yes – provides continuous ground path for chassis |
| Airflow Management | Yes – prevents bypass airflow through empty slots |
| Mounting | Snap-fit into chassis slot; no tools required |
| Electrical Connection | None (passive component) |
| Certifications | CE, cULus, ATEX (when used in certified system) |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22