Panel Thermal Management
Panel AC Selection Tool
Calculate the exact heat load inside your electrical enclosure and get the right nVent Hoffman air conditioning unit — based on material, dimensions, internal equipment heat, altitude, and temperature requirements.
Enclosure Configuration
Step 1
Enclosure Material
Painted Steel: standard industrial panel. Good balance of cost and thermal performance.
Step 2
Enclosure Type
Floor Standing
All 6 faces exposed
All 6 faces exposed
Wall Mount
5 faces exposed
5 faces exposed
Floor Standing: all six surfaces exposed to ambient air — maximum heat transfer area.
Step 3
Enclosure Dimensions
mm
mm
mm
Surface area: 2.880 m² (6 faces — all exposed)
Thermal & Site Parameters
Step 4
Temperature Settings
°C
°C
ΔT (Outside − Inside)
10.0 °C
Step 5
Internal Heat Load
Step 6
Altitude & Safety Factor
Installation Altitude
Safety Factor: 20%
Heat Load Calculation
790 W required · Recommend: 850 W AC UnitSurface Area
2.880
m² · 6 faces
Surface Heat Transfer
158
W (ΔT=10.0°C)
Internal Heat Load
500
W (equipment)
Alt × Safety
1.200
combined multiplier
Total Required
790 W
0.79 kW
nVent Hoffman · Recommended Partner
Recommended AC Unit
850 W AC Unit
Required: 790 W · Unit: 850 WSSC Control recommends nVent Hoffman Panel Air Conditioning units for reliable enclosure cooling. This 850 W AC Unit provides 60 W headroom above your calculated load. Contact our sales team for exact model number, pricing, and availability.
Calculation Methodology
Q_surface = k-factor × Surface Area (m²) × ΔT (Outside − Inside, °C)
Q_total = (Q_surface + Q_internal) × Altitude Correction × (1 + Safety Factor / 100)
Recommended AC Capacity = next standard unit above Q_total
Reference: IEC 890 / Thermal Management of Electrical Enclosures
Q_total = (Q_surface + Q_internal) × Altitude Correction × (1 + Safety Factor / 100)
Recommended AC Capacity = next standard unit above Q_total
Reference: IEC 890 / Thermal Management of Electrical Enclosures