How to Stop Control Cabinet Overheating from Damaging Your Equipment

Fandis Fan Filter Assemblies: Complete Control Cabinet Cooling Guide

Industrial Thermal Management

How to Stop Control Cabinet Overheating From Damaging Your Equipment

The Fandis FF Series fan filter assemblies protect electronics from heat and contamination with tool-free maintenance and EMI shielding built in.

🛒 Shop Fan Filter Assemblies →
55°C+
Cabinet temps above this threshold accelerate component failure exponentially
10×
Filter media can be washed up to 10 times before needing replacement
5 Sizes
106×106 mm up to 325×325 mm provides a fit for nearly every enclosure
0 Tools
Filter media swaps require zero tools on the FF Series

🌡️ 1 — Why Cabinet Cooling Can't Be an Afterthought

Heat and contamination are a leading cause of preventable PLC and control equipment failures. A fan filter assembly does two jobs at once:

🌬️ Active Cooling
Moves hot air out of the enclosure before it damages PLCs, drives, and relays.
🔒 Contamination Barrier
Blocks dust, metal particles, and debris that cause short circuits and corrosion.

⚙️ 2 — FF Series vs. FPF Series: Which One Do You Need?

⚠️ Heads up: The FPF Series is being phased out. The FF Series is the current standard and it's a direct cross-replacement.

Feature FF Series ✅ Current FPF Series ⚠️ Legacy
Mounting Push-on (no tools) Snap-on
Filter Media Removal Sliding catch (tool-free) May require tools
Water Protection Water run-off housing design Integrated gasket
EMI Resistance ✅ Yes ❌ No
Profile Standard Low profile

Both series use a ABS/polycarbonate alloy housing. Both share compatible replacement filter media.

📐 3 — Size & Spec Quick Reference

106.5×106.5mm
(~4.2" × 4.2")
150×150 mm
(~6" × 6")
204×204 mm
(~8" × 8")
250×250 mm
(~9.8" × 9.8")
325×325 mm
(~12.8" × 12.8")
Colors: RAL 7035 Gray & RAL 9005 Black
Voltage (fan versions): 115V AC, 230V AC, 24V DC
Fan option: With or without fan
Housing material: ABS/Polycarbonate alloy

🔧 4 — Essential Accessories That Extend System Life

🧽 Replacement Filter Media
  • Compatible with both FF & FPF series
  • Washable up to 10 times
  • Cleanable by spraying or shaking
  • Sold individually. Stocking extras is recommended
View Filter Media →
🌡️ Thermostats
  • Available in °F or °C scale
  • Automatically switches fan on at set temp
  • Prevents unnecessary fan run-time
  • Extends fan motor lifespan
View Thermostats →

🚨 5 — Troubleshooting: Fix It Fast

Problem: Cabinet temperature keeps rising even with the fan running
✅ Check filter media first. A clogged filter starves airflow. Remove and wash or replace. Inspect fan for debris. Confirm thermostat setpoint isn't too high.
Problem: Fan won't turn on
✅ Verify the thermostat setpoint. It may be set above the current cabinet temperature. Check line voltage (24V, 115V, or 230V) matches your unit. Inspect wiring connections.
Problem: Dust or debris found inside the cabinet
✅ Filter media is likely saturated or torn. Replace immediately. Inspect the housing seal and mounting interface for gaps. On FF Series, confirm the push-on fit is fully seated.
Problem: Water entry near the fan filter unit
✅ FF Series uses a water run-off housing design. Confirm the unit is oriented correctly (drain path unobstructed). FPF Series uses a gasket. Inspect for compression damage and replace if damaged.
Problem: Interference with sensitive electronics (EMI issues)
✅ Upgrade from FPF to FF Series. The FF Series includes built-in EMI/electromagnetic radiation resistance not present in the legacy FPF design.

✅ Installation & Maintenance Checklist

☐ Select correct size for enclosure cutout
☐ Match voltage: 24V DC, 115V, or 230V AC
☐ Choose color: RAL 7035 Gray or RAL 9005 Black
☐ Push-on mount fully seated (FF Series)
☐ Thermostat setpoint configured and tested
☐ Filter media inspected at installation
☐ Spare filter media stocked on-site
☐ Schedule filter cleaning every 3-6 months
☐ Log wash count per filter (max 10 washes)
☐ Confirm fan activates at thermostat threshold

Ready to Protect Your Control Cabinet?

Browse the full Fandis FF Series lineup, including filter assemblies, replacement media, and thermostats, all from a single trusted source.