Authorized nVent Distributor
nVent DAH4002B - Electric Heater, 230VAC 400W, 7.50x4.25x4.38 inch, Brushed, Aluminum

nVent DAH4002B Electric Heater, 230VAC 400W, 7.50x4.25x4.38 inch, Brushed, Aluminum

UPC: 783510705800


Documents & Media
Installation Instructions

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The nVent DAH4002B is a 400W electric enclosure heater designed for precise temperature control in industrial control panels and sensitive electronics. Operating at 230VAC with a 400W output, this unit prevents condensation, freezing, and thermal damage in harsh environments. Its brushed aluminum enclosure measures 7.50 x 4.25 x 4.38 inches, providing compact yet robust protection for critical components. The heater uses convection heating with constant power regulation to maintain stable internal temperatures. Airflow is optimized through bottom intake and top discharge, eliminating cold spots and ensuring uniform heat distribution. With a voltage range of 200-250VAC, the DAH4002B supports global power grids at 50/60 Hz. Ideal for manufacturing facilities, utilities, and outdoor installations, this heater safeguards automation systems, PLCs, and electrical enclosures in NEMA-rated cabinets. The brushed aluminum finish resists corrosion while efficiently dissipating heat. Compatible with standard panel mounting, it integrates seamlessly into existing thermal management systems.
  • Thermostat range adjustable from 0 F to 100 F (-18 C to 38 C)
  • Four 10-32 x self-tapping screws are included with each heater
  • Ball bearing fan
  • Terminal strip with clamp connector that accepts both solid and stranded wire
  • Terminal strip with clamp connector that accepts both solid and stranded wire

Specifications

Amperage Rating
1.86 A
Application
Power Distribution; Controls and Drives
Color
Unpainted
Depth
4.38 in
Depth
111 mm
Finish
Brushed
Frequency Rating
50/60 Hz
Heating Capacity
400 W
Height
191 mm
Height
7.5 IN
Housing Material
Aluminum
Material
Aluminum
Max Current
1.86 A
Nominal Capacity Watts
400 W
Nominal Voltage
220 V
Thickness
0.06 IN
Thickness
1.5 mm
Type
Heaters
Voltage AC
200-250 V
Voltage Rating
200 - 250 VAC
Weight
1 kg
Weight
2.3 lb
Width
108 mm
Width
4.25 IN
Package Dimensions (L x W x H)
8.5 IN x 6.1 IN x 6.5 IN
Package Dimensions (L x W x H)
21.59 cm x 15.494 cm x 16.51 cm
Package Weight (Imperial)
2.300 L
Package Weight (Metric)
1.043 kg
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How to Install the DAH4002B Electric Heater

This guide provides step-by-step instructions for installing and configuring the DAH4002B electric heater in a metal enclosure.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Disconnect power supply

    Ensure that all power supplies to the enclosure are disconnected to avoid electric shock and equipment damage.

  2. Mount the heater

    Secure the DAH4002B heater to a non-combustible metal panel in a vertical position using the included 10−32 UNF self-tapping screws. Ensure the terminal block is at the bottom and the air outlet openings are at the top.

  3. Connect wiring

    Connect the heater lead wires to the appropriate A.C. power source, ensuring that the heater is properly grounded and that exposed wires do not contact the heater housing.

  4. Set the thermostat

    Adjust the thermostat to the desired temperature, recommended not to exceed 75°F for most applications.

  5. Verify installation

    Check all connections and ensure that the heater is securely mounted and that there are no obstructions above the heater discharge area.

Frequently Asked Questions about nVent

What industries and applications are nVent products used for?

nVent products are engineered for critical infrastructure and industrial applications across multiple demanding sectors. Key markets include Construction, Data Centers, Defense, Healthcare, Mining, Oil & Gas Refineries, Power Plants, Rail/Transit, Renewable Energy, Security, Ship Building, Steel Mills, Telecom, and Utilities. Their solutions are designed to withstand extreme environmental conditions, with temperature ranges from -55°C to 105°C and specialized features like UV resistance, oil resistance, and flame resistance.

What environmental ratings do nVent products have?

nVent enclosures feature comprehensive environmental ratings, including UL 508A, CSA, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications. They are rated IEC 60529 IP66, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments. These products operate effectively in temperatures ranging from -40°F to 266°F, with enhanced UV inhibitors for outdoor weathering and oil-resistant gaskets for superior sealing.

What accessories are available for nVent products?

nVent offers a comprehensive range of accessories across multiple product lines, including EMC accessories like bonding cable clamps and strain reliefs, inline accessories such as lock inserts and mounting brackets, CONCEPT accessories including panel conversion kits and rack-mount angles, and seismic accessories for specialized mounting requirements. Key accessory categories include grounding kits, DIN rail mounting solutions, panel supports, handles, and various mounting hardware compatible with different enclosure types.

What certifications and standards do nVent products comply with?

nVent products meet critical international certifications including UL (United States), CSA (Canada), CE (European Community), and EAC (Russia). Our products are designed to comply with rigorous industrial standards such as NEMA enclosure ratings, IEC 60529 IP ratings, and international safety standards across multiple industrial markets including oil & gas, power, manufacturing, and infrastructure.

What is nVent's warranty policy?

nVent offers a standard 18-month warranty from invoicing date for most automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Warranty coverage includes repair or replacement at nVent's discretion, with certain conditions such as authorized service repairs and operation within designed capacity limits.

What technical support does nVent offer?

nVent offers comprehensive technical support through multiple global contact centers across North America, South America, Europe, Middle East, India, and Asia. Customers can reach technical experts by phone at regional numbers, with the North American headquarters in Minneapolis, MN providing primary support at +1.763.421.2240. Additionally, nVent provides online support resources through their website, including CAD drawing downloads and an 'Ask The Expert' feature to assist with product technical inquiries.