NHZ280416G400 Cooling capacity 1114 W, 115 V

SpectraCool Hazardous Location solutions are engineered specifically for hazardous location cooling, including: onshore and offshore oil & gas, chemical & petrochemical, mining, pharmaceutical, and any location with potentially hazardous atmospheres created by vapor.

CE Declaration of Conformity Declaration of Compliance EAC cULus_UL Listed
Feature: IP 56 Type 4, 4X.
Height 711 mm
Width 292 mm
Depth 356 mm
Weight (kg) 38
Cooling capacity 35 ºC/35 °C at 50 Hz (W) 1100
Cooling capacity 55 °C/55 °C at 50 Hz (W) 1150
Max. power consumption at 50 Hz (W) 930
Power supply (V/ph/Hz) 110-115 / 1 / 50-60
Max. Nominal current (A) 10.2
Starting current (A) 40.0
Noise level at 1.5 meters (dBA) 66.1
Item no.: NHZ280416G400
EAN no.: 8713574246492
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Technical data


SpectraCool Hazardous Location is the air conditioning solution engineered specifically for hazardous location cooling, not rebuilt from light industrial air conditioners. It features an attractive design with no heavy cast enclosure and minimal use of visible fasteners. Thanks to its narrow sizing, it can accommodate 12 in (300 mm) deep cabinets. SpectraCool Hazardous Location does not require purge and pressurized system. Units have a corrosion resistant coating on ambient side components for Type 4X models. R134a earth-friendly refrigerants. Easy-mount flanges for simple installation.


Type 4X models: Stainless steel 316L.

Operating temperature:

-40 to + 55 ºC (+52 ºC for NHZ28 Series and NHZ43 Series 115 V).

Type of connection:

Terminal block.


IP 56 | Type 4, 4X.


CE, cULus listed File No. E469720.; Class 1 Div 2 Groups A, B, C, D T4A

Scope of delivery:

Active condensate management with heater strip. Compressor heater. Head pressure control. Power-off relay for door switch and other system requirements. Malfunction switch. Cleanable, reusable aluminium mesh filter to protect coils from extremely dusty and dirty atmospheres. Dust resistant coils for filterless operation in most environments. Digital temperature control on the enclosure side.



Air conditioner with hazardous location classification Class 1 Div 2 Groups A, B, C, D T4A.


Time and cost savings in the end-use investigation process of the final assembly.


Certification of final assembly is easier if installed components are classified for hazardous locations.

Dxf (DXF) NHZ28 5 MB
Image (JPG 800 x 800 px) NHZ 25 KB
Item sheet (PDF) NHZ280416G400 ENGLISH 293 KB
Mounting instructions document (PDF) NHZ28 Mounting instructions 2 MB
Mounting instructions document (PDF) NHZ36 Mounting instructions 2 MB
Mounting instructions document (PDF) NHZ43 Mounting instructions 2 MB
Product sheet (PDF) NHZ 1 MB
Product sheet (PDF) NHZ(ENGLISH) 310 KB
Step (STEP) NHZ28 18 MB



* Drawings generated according to ISO standard
Document (PDF) CE Declaration of Conformity 88 KB
Document (PDF) Declaration of Compliance 77 KB
Document (PDF) EAC 2 MB
Document (PDF) cULus_UL Listed 679 KB