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SDA412 light gray polycarbonate enclosure breather plug

Hammond SDA412 Pressure Compensation Breather Plug, PG 29

Hammond Manufacturing|

MPN: SDA412

|

UPC: 623980565880

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224-955-1644
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New, with full manufacturer warranty

Key Features

  • Controlled pressure compensation for temperature variations (night/day)
  • PG 29 (1.14 in) thread with union nut; minimum cutout diameter 1.46 in
  • IP55 mounted vertically, IP54 otherwise
  • Includes sealing gasket
  • Operating temperature -45 °C to +70 °C
  • 2.6 in diameter x 1.2 in depth
  • Two plugs per cabinet in opposite locations recommended

The SDA412 is a breather kit pressure plug for electrical enclosures. It provides controlled pressure compensation due to temperature variations, such as night and day operation, helping panel builders and maintenance teams manage the pressure changes a sealed cabinet sees. Two plugs per cabinet in opposite locations are recommended.

The plug is polycarbonate rated UL94V0 in RAL 7035 Light Gray, with a UV rating per UL746C (F1). It includes a sealing gasket and offers IP55 protection when mounted vertically, or IP54 in other orientations. The operating temperature range is -45 °C to +70 °C.

Dimensions are 2.6 in diameter by 1.2 in depth (listed as 2.6 x 1.19 in). The SDA412 mounts through a PG 29 (1.14 in) thread with a union nut and requires a minimum cutout diameter of 1.46 in, so installation is a matter of cutting one round hole, fitting the plug with its sealing gasket and tightening the union nut from inside the enclosure wall. The second recommended plug goes in the opposite location on the cabinet. Shipping weight is 0.1 lbs (0.05 kg), and the part is REACH and RoHS compliant.

Ideal For

  • Pressure compensation in sealed electrical enclosures
  • Enclosures exposed to day/night temperature swings
  • Cabinet breathing with two plugs in opposite locations

Overview

SeriesSDA Series - Breather Kit
FunctionControlled pressure compensation due to temperature variations (i.e. night/day operation)
DescriptionBreather Kit
Product TypeBreather Kit
Short DescriptionPRESSURE PLUG 2.6X1.19"DIA
Recommended QuantityTwo plugs per cabinet in opposite locations

Dimensions

Size (Short Description)2.6 x 1.19" dia
Dimensions (Diameter X Depth)2.6" x 1.2"

Identifiers

UPC623980565880
UNSPSC40101503
Part NumberSDA412

Installation

MountingPG 29 (1.14") thread with union nut
Minimum Cutout Diameter1.46"

Packaging & Shipping

Shipping Weight0.1 lbs (0.05 kg)

Construction & Finish

ColorRAL 7035 Light Gray
IncludedSealing gasket
MaterialPolycarbonate UL94VO

Environmental & Protection

UV Ratingper UL746C (F1)
ProtectionIP55 mounted vertically, else IP54
Operating Temperature-45 °C to +70 °C

Compliance & Certifications

RoHS CompliantYes
REACH CompliantYes

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Frequently Asked Questions

What does a breather plug do?▾

It provides controlled pressure compensation inside the enclosure due to temperature variations, such as night/day operation.

What size hole do I need?▾

The plug mounts with a PG 29 (1.14 in) thread and union nut and needs a minimum cutout diameter of 1.46 in.

How many should I install?▾

Two plugs per cabinet in opposite locations are recommended. A package of two is listed as SDA412-2.

What IP rating does it have?▾

IP55 when mounted vertically, otherwise IP54.

Is a gasket included?▾

Yes, the kit includes a sealing gasket.