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Model: PDA2821

PDA2800 Series Low-Cost Plastic NEMA 4X

UL Listing
SKU: PDA2821
Product Type: NEMA 4X Enclosure
Materials: Plastic
Cutouts: Two (2)
Inside Dimensions: 6.7" x 10.5" x 6.7"
Meter Mounting: Through front panel
Orientation: Dual
Approvals: UL/C-UL
Warranty: 1 year
Product Family: PDA2800
Product Category: Enclosures
Product Application: Enclosures
Cover Method: Screws
Cutout DIN Size: 1/8 DIN
Applicable Meter Types: A, B, C, D, E


  • House up to 2 Meters
  • Plastic
  • 1/8 DIN Cutout(s) Pre-Cut
  • 1/2" Conduit Hole on PDA2801, PDA2802 and PDA2811
  • NEMA 4X (PDA2801, PDA2802 NEMA 4)
  • Meter Mounted in Cover
  • Cover Held in Place with Screws
  • UL, C-UL Listed
  • PDA2801, PDA2802 Mounting Holes Through Enclosure
  • PDA2811 - PDA2821 Mounting Hardware Provided
  • Light / Horn & Reset Button
  • Pipe Mounting Kit Options


The PDA2800 series of economical small footprint plastic NEMA 4X enclosures provide a convenient way to mount one or two Precision Digital meters to walls and other vertical structures. The PDA2811 enclosure also has room for a light / horn accessory. These enclosures come pre-cut with horizontal 1/8 DIN cutouts or they can be ordered with no cutouts. Models with cutouts for PD420 are also available. The PDA2801, PDA2802, and PDA2811 are provided with a ½" conduit hole in the base of the enclosure. The meters are mounted in the cover of the enclosure thus allowing for programming and operation of the meter. No additional mounting hardware other than screws is needed. The cover is secured with four screws. Optional pipe mounting kits are available for mounting the enclosures to 2" pipes. Enclosures, meters and accessories are ordered and packaged separately.

Wall Mounting

The PDA2801 and PDA2802 use four screws (not included) that go through the back of the enclosure for quick and easy wall mounting. The PDA2811, PDA2812, PDA2814, PDA2815 and PDA2821 enclosures include four mounting flanges and four screws. Using the screws and a phillips head screwdriver simply assemble each flange in the four threaded screw holes on the back of the enclosure as shown in the example below.

Wall mounting

PDA2811 - PDA2815 enclosure with supplied mounting flanges installed

Back of enclosure

PDA2801 - PDA2802 with screws through back of enclosure for wall mounting

Cover Securing Method

The cover is secured with four screws.

Cover securing method


PDA6845 2" Pipe Mounting Kit

PDA6845 2 inch Pipe Mounting Kit

The PDA6845 and PDA6845-SS pipe mounting kits provide convenient ways to mount the PDA2801 enclosure to 2" pipes.

PDA6545 2" Pipe Mounting Kit

PDA6545 2 inch Pipe Mounting Kit

The PDA6545 and PDA6545-SS pipe mounting kits provide convenient ways to mount the PDA2811, and PDA2812 enclosures to 2" pipes.

PDA2800 Series Enclosure with Light / Horn

PDA2800 Series Enclosure with Light / Horn

PDA2811 Enclosure Shown with a ProVu Meter and MOD-LH Light / Horn and Reset Button. Meter & MOD-LH Sold Separately. Assembly Required.

Light / Horn Accessories

Precision Digital offers a Light / Horn that can be mounted to the PDA2811, PDA2812 or PDA2821 by the user. This Light / Horn can be wired to flash or stay steady on and the horn is rated at 85 dB. The light and horn can be controlled independently of each other via separate relays on the meter such that the horn can be programmed to silence via a button mounted to the enclosure and the light can be programmed to stay on until the alarm clears.

The light / horn and reset button are all rated NEMA 4X or IP65. The following table illustrates a typical way the Light / Horn accessory can be wired and programmed using the four relays on the ProVu meter:

Relay #Connected toTypical reset method
(user selectable)
1Flashing Light(1)Reset automatically after alarm clears
2HornSilence with Reset Button at any time
3User DeviceAs user desires
4User DeviceAs user desires

1. Light can be wired to flash or stay steady on


  1. The Light / Horn accessory is powered from the 200 mA transmitter power supply; so when it is installed, there is less power available for the transmitter. See MOD-LH and MOD-LHX2 Series manuals for details.
  2. See MOD-LHX2 manual for typical wiring diagrams using the Trident X2 meter, which has a capacity of only two relays.

MOD-LH & MOD-LHX2 Light / Horn Accessories

When these are ordered, the enclosure comes pre-drilled with holes for the Light / Horn and Reset Button to be installed by user. Meter and enclosure are sold separately. The Light / Horn hole is in the back left corner of the enclosure and the Reset button is centered on the side of the enclosure about an inch off the bottom. For mounting in different locations, order items separately and drill holes and mount as desired. Other light and button colors are available.

Light / Horn Dimensions Units: Inches (mm)
Light / Horn Dimensions

PDA-SSTAG Stainless Steel Tags

PDA-SSTAG Stainless Steel Tags

PDA-SSTAG is a laser etched stainless steel tag accessory for any of your Precision Digital meters. The tag features custom text for equipment identification, instruction, or whatever else is needed in your facility. Each tag comes with a stainless steel wire and lead seal for easy mounting wherever you need it.

PDX18DIN-FILLER 1/8 DIN Cutout Filler

PDX18DIN-FILLER 1/8 DIN Cutout Filler

The NEMA 4X 1/8 DIN cutout filler is used to cover up empty 1/8 DIN cutouts and maintain the NEMA 4X rating to the panel or enclosure. It consists of a generic bezel with a black faceplate, as well as mounting brackets, gasket, etc.

Note: These specifications apply to the entire product series and may contain information that is not relevant to this particular model number.


Material: Thermoplastic Polyester
Color: Gray
Meters: Houses 1 or 2 meters
Meter Mounting Method: Through cover
Cover Mounting Method: Screws
Ratings: NEMA 4X (PDA2801, PDA2802 NEMA 4)
Approvals: UL, C-UL
Operating Temperature: -40 to 120°C
Warranty: 1 year

1/8 DIN Meter Types

Type Meters
B PD542, PD543, and PD562
C PD603, PD644, PD743, PD765, PD6602, PD6603, PD6604, PD6606, PD6607, PD6608, PD6622, PD6624, and PD6626, and PD6628.
D PD138, PD154, and PD158
E PD6000, PD6001, PD6060, PD6080, PD6081, PD6088, PD6089, PD6100, PD6200, PD6210, PD6262, PD6300, PD6310, PD6310-WM, PD6363, PD6400, and PD7000


Available 1 Required

Model# of Meters1/8 DIN Meter Type
Conduit HoleFits
Horizontal Cutouts
No Cutouts
PDA2801-B N/AYesNoNo
PDA2812-B N/ANoNoYes


Units: Inches (mm)

Small Enclosures

PDA2801 Enclosure

Weight: 0.60 lbs (0.27 kg)
Dimensions for: PDA2801, PDA2802

Medium Enclosures

PDA2811/2812 Enclosures

Weight: 1.75 lbs (0.79kg)
Dimensions for: PDA2811, PDA2812, PDA2814, PDA2815

Large Enclosure

PDA2821 Enclosure

Weight: 2.80 lbs (1.27 kg)
Dimensions for: PDA2821

Download free 3D CAD files

Note: This tab applies to the entire product series and may contain information that is not relevant to this particular model number.

Add to Cart

SKU: PDA2821
Stock: 0
Lead Time: 5 business days