Temperature controlled enclosures from Mier Products.

Outdoor/Indoor NEMA 4 Air-Conditioned Enclosures

Our temperature controlled enclosures with air conditioners, heaters, and thermostats are perfect for mounting fire-panels, DVRs or electronic equipment outside. Fan-cooled enclosures are also available.

Installation is important in extending the life of the enclosures. These air-conditioned enclosures and heated enclosures carry a NEMA rating. Therefore, they have exterior mounting brackets and come with punched holes to permit the installation of the AC and fan units, but have no other holes. Any holes an installer makes for power, etc. must be made with proper tools, deburred and water-tight fittings used. We also recommend coating the interior of the cut (the newly exposed metal) with Rust-Seal or another type of protection. In order to keep proper NEMA and UL ratings installers must also keep AC/Heater units upright at all times, and explicitly follow all OEM installation instructions. If you have questions about the NEMA or UL ratings, please give us a call.

Optional E-coating is available for added rust protection (call if interested). E-Coat has been around for many years, but really began to gain prominence with use in the automotive industry; one of the toughest environments there is. Our outdoor enclosures are exposed to all types of weather, including coastal areas where salt air takes a toll on anything metal. Upper U.S. and Canadian installations also have some challenging weather. Epoxy E-Coat offers protection against corrosion and has illustrated superior results in salt-spray and cycle-corrosion testing. A simple explanation of applying E-Coat calls for our enclosure to enter a bath and be fully submerged where a negative charge attracts positively-charged paint particles. The result is a high-performance thin and tough coating ideal for exterior durability with excellent corrosion resistance. Our standard application of outdoor powder coat paint is then applied over the E-Coat to complete a two-coat finish that offers long-term use.

Mier’s Temperature Controlled Enclosures are designed to provide a degree of protection from rain, sleet, snow, ice, dirt, and dust. Mier offers NEMA 4X, NEMA 4, and NEMA 3R type indoor/outdoor enclosures. Mier recommends the air-conditioned and heated (ACHT) models for most applications. Fan-cooled (FC) models are available for applications where the temperature within the cabinet does not require air-conditioned cooling or heating, but only requires the internal air in the enclosures to be filtered and exchanged with the ambient air. It is solely up to the installer to determine their need.

These models cannot be shipped UPS because of size limitations, but must be shipped via common carrier. Depending upon quantities, the air-conditioners may ship on a separate skid from the enclosures.

Do not mount enclosures equipped with air-conditioners on outside walls of apartments, offices, condos or homes to prevent AC vibration from becoming a nuisance to those who live/work on the other side of the wall.  Just as a home or business’ AC units are mounted a few feet away or on the roof to prevent noise to those who live/work within, Mier recommends mounting temperature-controlled enclosures on concrete pads using angle-iron or poles, or mounting them on walls not common to living/work areas within.

*** Choosing the correct enclosure for your application ***

With an internal heat load of 200 watts:

  1. Mier’s BW-124ACHT and BW-136ACHT come with a 2000 BTU air-conditioning unit and an internal 500W heater. When installed and functioning properly, these models will maintain a preset temperature (+/- 3°F). These units are capable of maintaining an 80°F internal temperature (+/- 3°F) up to an outside temperature of 135°F.
  2. When installed and functioning properly, the BW-124ACHT maintains a preset temperature (+/- 3°F) up to a maximum of 60° F internal temperature down to an outside temperature of -20°F.
  3. When installed and functioning properly, the BW-136ACHT maintains a preset temperature (+/- 3°F) up to a maximum of 60° F internal temperature down to an outside temperature of -10°F.

    With an internal heat load of 100 watts:

  4. Mier’s BW-124-8ACHT comes with an 800 BTU air-conditioning unit and an internal 150W heater. When installed and functioning properly, this model will maintain a preset temperature (+/- 3° F). This unit is capable of maintaining a 80°F internal temperature (+/- 3°F) up to an outside temperature of 125°F. Furthermore, the BW-124-8ACHT maintains a preset temperature (+/-3° F) up to a maximum of 40°F internal temperature down to outside temperatures of -20°F.

NOTE on ACHT models: If your installation is in warmer or cooler exterior or interior
temperatures than these, if your internal heat load is greater, or if you are installing in a coastal or highly corrosive area call Mier Products for advice on special order units. Mier recommends only installing units with window in shaded areas; as interior temperatures of these units reach 20° higher in direct sunlight than units without windows.

NEMA 3R Units with Fans and Air Filters

  1. Mier’s BW-124FC or BW-136FC comes with a 115V/300cfm continuous-duty fan with a filter.
  2. Mier’s BW-124-8FC comes with a 115V/131cfm continuous-duty fan with a filter.

NOTE on FC models: Fan-cooled enclosures simply exchange internal air for the external air, so the internal temperature of the enclosure will be the same as the exterior environment. Therefore, Fan-Cooled models are not recommended for high-temperature or low temperature environments. Optional thermostat control is available. Because these units pull external air into the enclosure through a filtering system, they do not meet the NEMA 4 standards of air-conditioned and heated models (ACHT). However, they are designed to NEMA 3R specifications. Therefore, Fan-Cooled models are not recommended for applications where internal components need to be protected from wash down conditions. When using these models you must keep the filters clean and must not block the fan, air intake, or air-flow with items mounted inside the enclosure.

Air-Conditioned & Heated (ACHT) Models
Model
Number
Dimensions
W" x H" x D"
Color Features
BW-124-8ACE 24” x 24” x 8” ASA 70 Gray
  • Outdoor NEMA 4 Enclosure
  • 800 BTU AC Unit (no heater - see ACHT units for AC and Heat)
  • Variable Control Thermostat
  • Removable 22” x 22” back panel, and removable door
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock
  • Interior literature tray with key tabs
Air conditioned and heated temperature controlled enclosures.

BW-124-8ACEW 24” x 24” x 8” ASA 70 Gray
  • Same features as the BW-1248ACE shown above with the
    addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door
Air conditioned and heated temperature controlled enclosures.

BW-124-8ACHT 24” x 24” x 8” ASA 70 Gray
  • 800 BTU AC Unit
  • 150W Heater
  • Variable Control Thermostat
  • Tamper Switch
  • Interior water channel & gasketing for added protection
  • Removable 22” x 22” panel
  • Removable door
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock
  • Interior tray with key tabs
Air conditioned and heated temperature controlled enclosures.

BW-124-8ACHTW 24” x 24” x 8” ASA 70 Gray
  • Same features as the BW-124-8ACHT shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door
Air conditioned and heated enclosures.

BW-124-ACE 24” x 24” x 12” ASA 70 Gray
  • Outdoor NEMA 4 Enclosure
  • 2000 BTU AC Unit (no heater - see ACHT units for AC and Heat)
  • Variable Control Thermostat
  • Removable 22” x 22” back panel, and removable door
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock
  • Interior literature tray with key tabs
Air conditioned and heated enclosures.

BW-124-ACEW 24” x 24” x 12” ASA 70 Gray
  • Same features as the BW-124ACE shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door
Air conditioned and heated enclosures.

BW-124ACHT 24” x 24” x 12” ASA 70 Gray
  • 2000 BTU AC Unit
  • 500W Heater
  • Variable Control Thermostat
  • Tamper Switch
  • Interior water channel &
    gasketing for added protection
  • Removable 22” x 22” panel
  • Removable door
  • Two 1/4 turn latches pull door tight into the gasket
  • Tubular-key lock
  • Interior literature tray with key tabs

Mier air conditioned enclosures with 500w heater


BW-124ACHTW 24” x 24” x 12” ASA 70 Gray
  • Same features as the BW-124ACHT shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door

Air conditioned and heated temperature controlled enclosures.


BW-136-8ACE 22” x 36” x 12” ASA 70 Gray
  • Outdoor NEMA 4 Enclosure
  • 800 BTU AC Unit (no heater - see ACHT units for AC and Heat)
  • Variable Control Thermostat
  • Removable 22” x 34” back panel, and removable door
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock
  • Interior literature tray with key tabs

Air conditioned and heated temperature controlled enclosures.


BW-136-8ACEW 22” x 36” x 12” ASA 70 Gray
  • Same features as the BW-1368ACE shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door

Air conditioned and heated temperature controlled enclosures.


BW-136-8ACHT 24” x 36” x 12” ASA 70 Gray
  • Outdoor NEMA 4 Enclosure
  • 800 BTU AC Unit
  • 150W Heater
  • Variable Control Thermostat
  • Removable 22” x 34” back panel, and removable door
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock
  • Interior literature tray with key tabs

Air conditioned and heated temperature controlled enclosures.


BW-136-8ACHTW 24” x 36” x 12” ASA 70 Gray
  • Same features as the BW-1368ACHT shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door

Air conditioned and heated temperature controlled enclosures.


BW-136ACHT 24” x 36” x 12” ASA 70 Gray
  • 2000 BTU AC Unit
  • 500W Heater
  • Variable Control Thermostat
  • Tamper Switch
  • Interior water channel &
    gasketing for added protection
  • Removable 22” x 34” panel
  • Removable door
  • Two 1/4 turn latches pull door tight into the gasket
  • Tubular-key lock
  • Interior literature tray with key tabs
Air conditioned enclosures with 500w heater from Mier Products.

BW-136ACHTW
24” x 36” x 12” ASA 70 Gray
  • Same features as the
    BW-136ACHT shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door
Air conditioned and heated enclosures.
Outdoor NEMA 4 Temperature Controlled
Rack Enclosures
BW-RACK8ACE
22” x 24” x 24” ASA 70 Gray
  • Outdoor NEMA 4 Rack Enclosure
  • 800 BTU AC Unit (no heater - see ACHT units for AC and Heat)
  • Variable Control Thermostat
  • Interior 12RU Rack included
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Removable door
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock
  • Pictured with DVRs and BW-RMD1 not included. Installer not included either ;-)

BW-RACK8ACEW
22” x 24” x 24” ASA 70 Gray
  • Same features as the BW-RACK8ACE shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door

BW-RACK8ACHT
22” x 24” x 24” ASA 70 Gray
  • Outdoor NEMA 4 Rack Enclosure
  • 800 BTU AC Unit
  • 150W Heater
  • Variable Control Thermostat
  • Interior 12RU Rack included
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Removable door
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock

BW-RACK8ACHTW
22” x 24” x 24” ASA 70 Gray
  • Same features as the BW-RACK8ACHT shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door

BW-RACKACE
22” x 24” x 24” ASA 70 Gray
  • Outdoor NEMA 4 Rack Enclosure
  • 2000 BTU AC Unit (no heater - see ACHT units for AC and Heat)
  • Variable Control Thermostat
  • Interior 12RU Rack included
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Removable door
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock

BW-RACKACEW
22” x 24” x 24” ASA 70 Gray
  • Same features as the BW-RACKACE shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door

BW-RACKACHT
22” x 24” x 24” ASA 70 Gray
  • Outdoor NEMA 4 Rack Enclosure
  • 2000 BTU AC Unit
  • 500W Heater
  • Variable Control Thermostat
  • Interior 12RU Rack included
  • Tamper Switch
  • Interior water channel & gaskets for added protection
  • Removable door
  • Two 1/4-turn latches pull door tight into gasket
  • Tubular key-lock
  • Pictured with DVRs and BW-RMD1 not included

BW-RACKACHTW
22” x 24” x 24” ASA 70 Gray
  • Same features as the BW-RACKACHT shown above with the addition of a 12” x 8” window in the door
  • A unit with a window in the door allows the temperature inside the enclosure to rise 20 degrees F higher on a sunny day than a unit without a window in the door
  • Pictured with DVRs and BW-RMD1 not included
Outdoor NEMA 4 Temperature Controlled
Non-Metallic Enclosures
BW-242410ACE 24” x 24” x 10” Gray
  • Outdoor NEMA 4
    NON-METALLIC Enclosure
  • 800 BTU AC Unit
    (no heater - see ACHT units for AC and Heat)
  • Variable Control Thermostat
  • Non-metallic polycarbonate enclosure allows you to place transmitters/ receivers inside!
  • Optional Back Panels or DIN Rails fit onto standoffs already existing in the back of the enclosure
  • Optional Back Panel Adjustment Kit allows you to “stack” panels within the enclosure
  • Optional keyed lock available
  • All holes pre-cut to install included AC units
  • Gaskets
  • Highly adaptable internal panel adjustment and rail system
  • Interior water channel & gaskets for added protection
  • Four latches pull door tight into gasket

BW-242410ACHT 24” x 24” x 10” Gray
  • Outdoor NEMA 4
    NON-METALLIC Enclosure
  • 800 BTU AC Unit
  • 150W Heater
  • Variable Control Thermostat
  • Non-metallic polycarbonate enclosure allows you to place transmitters/ receivers inside!
  • Optional Back Panels or DIN Rails fit onto standoffs already existing in the back of the enclosure
  • Optional Back Panel Adjustment Kit allows you to “stack” panels within the enclosure
  • Optional keyed lock available
  • All holes pre-cut to install included AC units
  • Gaskets
  • Highly adaptable internal panel adjustment and rail system
  • Interior water channel & gaskets for added protection
  • Four latches pull door tight into gasket
ACHT Model Accessories and Replacement Parts
BW-ACH2000 10” x 20” x 10” ANSI 61 Gray
  • 2000 BTU Air-Conditioning Unit
  • 500W Internal Heater
  • Air Intake Filter
  • Variable Control Thermostat
  • 115V, 60Hz
  • Includes a gasket which fits between this unit and the enclosure
  • Draws 7 amps, which spikes to 17.5 amps at start-up
  • Weighs 61 lbs
  • Mounts into pre-punched holes in Mier’s enclosure
  • -4°/+131° F
  • Air filter must be cleaned every six months

Included with Mier’s BW-124ACHT
and BW-136ACHT

Temperature controlled enclosures air conditioning and heater unit.Temperature controlled enclosures air conditioning and heater unit.
Exterior             Interior
View                 View


BW-ACH800 10” x 20” x 10” ANSI 61 Gray
  • 800 BTU Air-Conditioning Unit
  • 150W Internal Heater
  • Air Intake Filter
  • Variable Control Thermostat
  • 115V, 60Hz
  • Includes a gasket which fits between this unit and the enclosure
  • Draws 3.6 amps, which spikes to 6.3 amps at start-up
  • Weighs 32 lbs
  • Mounts into pre-punched holes in Mier’s enclosure
  • -4°/+131° F
  • Air filter must be cleaned every six months

Included with Mier’s BW-124-8ACHT

Fan for Mier temperature controlled enclosures.


BW-TSW 1” x 1” x 2” Off-White
  • Includes NC and NO contacts
  • Weighs 1 ounce
    Mounts onto studs placed in the enclosure
  • Included with Mier’s BW-124-8ACHT, BW-124ACHT, BW-136ACHT, BW-124-8FC, BW-124FC, and BW-136FC

 

Accessories for temperature controlled enclosures.


BW-124PO 22” x 22” ASA 70 Gray
  • Removable back panel mounts onto studs placed in the back
  • Included with Mier’s BW-124-8AHCT, BW-124ACHT,
    BW-124-8FC, BW-124FC, and BW-124BP

Removable back panel.

BW-124PO 22” x 34” ASA 70 Gray
  • Removable back panel mounts onto studs placed in the back
  • Included with Mier’s BW-136AHCT, BW-136FC, BW-136BP

Removable back panel.

BW-50WHTR 2.75" x 5.5"
x 4"
Black
  • 50 Watt Heater to circulate heated air
  • Includes thermostat, which attaches below the heater
  • Connection: 2-pole terminal, AWG 14 max (2.5 mm²)
  • Mounts onto DIN rail (included)
  • For use with small indoor or outdoor enclosures
  • 120V-240V AC, 50/60 Hz, 2.5 amp draw at initial inpush
  • Operating Temperature is -40 to 158ºF (-40 to 70ºC)
  • Switch off temperature 59ºF (15ºC)
  • Switch on temperature 41ºF (5ºC)
  • Weighs 10.8 oz
Panel heater for smaller boxes.

BW-100WHTR

3.25" x 4.5"
x 2.25"

Gray
  • 100 Watt Heater with fan/blower to circulate heated air
  • Includes thermostat (pictured to the right of the heater/fan)
  • Heater: 3-pole terminal, AWG 14 max. (2.5 mm²)
  • Fan: 2-pole terminal (L2/N2), AWG 14 max. (2.5 mm²)
  • Mounts onto DIN rail (included)
  • For use with medium indoor or outdoor enclosures such as the BW-SL12106, BWSL16147, or BW-SL181610
  • 120V-240V AC, 50/60 Hz, 4.5 amp draw at initial inpush (10 sec)
  • Operating Temperature is -49 to 158ºF (-45 to 70ºC)
  • Weighs 1.4 pounds

BW-400WHTR 6.25” x 4” x 5” White
  • 400 watt heater blower for larger boxes like the
    BW-124-8BP, BW-124BP, and BW-136BP
  • Thermostatically controlled
  • Weighs 4 pounds
  • 100-125 VAC, 14 amp draw at initial inpush & 7 amp at steady state
Heater blower for larger boxes.
 

Air conditioned, heated and fan-cooled enclosures.

Click here for a PDF
of our cut-sheets and technical
information on the AC
and heated units

 

 

 

Enclosures made in the U.S.

 

 

 

 

NEMA 4 air conditioned and heated enclosures.
Examples of NEMA 4
ACHT units.
Scroll down to see models.

 

 

 

 

 

NEMA 3R fan-cooled enclosures.

Example of NEMA 3R
FC units.
Scroll down to see models.

 

 

 

 

 

 

 

 

 

 

Mier temperature controlled enclosures

 

 

Click here for customer mounting examples of Mier's Temperature Controlled Enclosures

 

 

 

 

 

 

 

 

 

 

Mier offers the right temperature controlled enclosures for your application

 

 

 

 

 

 

 

 

 

Mier offers the right temperature controlled enclosures for your application.

 

 

 

 

 

 

Electrical Enclosure Heaters

Click here for a PDF
of our accessory heaters for electrical enclosures

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mier Products’ Enclosure Warranty


Warranty Information for Enclosures:

Mier Products, Inc.’s Limited Warranty Program, for Standard Line or Custom Metal Enclosures and Parts, protects the original owner for 30 days from the date of purchase against defects in original parts or workmanship. Mier Products, Inc. agrees to repair or replace parts (Mier’s option) that are deemed defective by our Quality Control Team, without charge for parts or labor, if the defective unit is returned prepaid to Mier Products, Inc., Kokomo, IN, 46901, within the 30-day period. As metal enclosures/parts are not products containing complicated technology or electronics, close inspection at the time of receipt by the customer will quickly determine product quality. Thus, Mier Products, Inc. recommends inspection of enclosures/parts immediately upon receipt and contacting Mier Products, Inc. if quality issues arise.

Mier Products, Inc. does not assume responsibility for claims or damages caused by improper installation or use of these products, accessories, and/or products connected to or stored within them. Mier Products, Inc. does not assume responsibility for damages to these products or their accessories due to shipping damage or damage occurring while in a customer’s warehouse and/or possession. These products and any accessories (including but not limited to air conditioning units, heaters, fans, filters, locks, latches, tamper switches, removable panels) must be shipped, handled, stored, and installed with strict adherence to OEM installation instructions.

This warranty constitutes the entire warranty with respect to Mier’s Metal Enclosures and Metal Fabricated Parts and IS IN LIEU OF ALL OTHERS, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OR MERCHANTABILITY AND
WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE AND IN NO EVENT IS MIER PRODUCTS, INC., OR IT’S OEM PARTNERS, RESPONSIBLE FOR ANY CONSEQUENTIAL DAMAGES OF ANY NATURE WHATSOEVER.

Any warranty OR sales questions should be directed to Mier Products at 800-473-0213, or via e-mail to
info@mierproducts.com

Warranty Information for Air Conditioner, Heaters, Filters, Fans, Other OEM Partner Accessories:

Mier Products, Inc. works closely with reputable OEM Partners to offer accessories for our lines of enclosures and Drive-Alert Vehicle Detection Systems. Those accessories are warranted and supported by their OEM. As an example: Mier Products exclusively uses McLean Thermal air-conditioning units for our Temperature Controlled Enclosures. While the enclosure portion of these units is warranted by Mier Products, Inc., as written above under Metal Enclosures and Metal Fabricated Parts, the AC/Heater unit would be warranted and supported by McLean Thermal.