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