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APPLETON ELECTRIC Hazardous Location Blank Plug, 4 in, Galvanized Iron, NPT - Hazardous Location Blank Plugs
APPLETON ELECTRICHazardous Location Blank Plugs

APPLETON ELECTRIC Hazardous Location Blank Plug, 4 in, Galvanized Iron, NPT

APPLETON ELECTRIC Hazardous Location Blank Plugs.

SKU 3G-OTH-05787

Also listed as: PLG400 · PLG 400

Brand
APPLETON ELECTRIC
Item
Hazardous Location Blank Plug, 4 in, Galvanized Iron, NPT
Category
Hazardous Location Blank Plugs
Available to Order
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

APPLETON ELECTRIC
Manufacturer Part Number
PLG-400

Technical Documents

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APPLETON ELECTRIC Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

APPLETON ELECTRIC Hazardous Location Blank Plugs.

Frequently Asked Questions

What is the Appleton Electric PLG-400 blank plug used for?

The Appleton Electric PLG-400 blank plug seals unused openings in hazardous-location enclosures, preventing gas, dust, or moisture ingress. It is commonly used in oil refineries, chemical plants, and other industrial environments requiring explosion-proof fittings.

What are the specifications of the Appleton Electric PLG-400 blank plug?

The PLG-400 is a hazardous-location blank plug from Appleton Electric. It has a 4-inch trade size, NPT threading, male-to-male connection, and is made of galvanized iron. The manufacturer part number is PLG-400.

Where to buy the Appleton Electric PLG-400 blank plug worldwide?

3G Electric supplies the Appleton Electric PLG-400 blank plug worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to install the Appleton Electric PLG-400 blank plug?

Apply thread sealant to the NPT threads of the PLG-400, then hand-tighten into the unused hub or opening. Use a wrench for final snugging—avoid overtightening to prevent cracking. Ensure the area is de-energized and classified per NEC/CEC before installation.

Used in

Common applications for APPLETON ELECTRIC
Oil and gas refineries — Appleton Electric EDSC21MC2 manual motor switch for controlling pumps in Class I, Division 1 areas
Chemical processing plants — Appleton Electric AEAB13420C hazardous location circuit breaker for motor protection in volatile environments
Pharmaceutical manufacturing — Appleton Electric FSK-1VDR weatherproof cover for duplex receptacles in washdown zones
Wastewater treatment facilities — Appleton Electric UNY250R-A aluminum conduit union for corrosion-resistant connections
Mining operations — Appleton Electric EDSC277-SA tandem 2-gang box for junction points in hazardous dust locations
Food and beverage processing — Appleton Electric JBK-75 iron cover for conduit access fittings in wet or dusty areas

APPLETON ELECTRIC Products

3G Electric supplies APPLETON ELECTRIC hazardous location blank plugs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

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Galvanized iron blank plug with 2-1/2 inch NPT male-to-male threads. Used to seal unused openings in hazardous location enclosures, preventing entry of dust, moisture, and flammable gases. Suitable for industrial environments requiring explosion-proof protection
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Steel electroplated blank plug for sealing unused openings in hazardous location enclosures, junction boxes, or conduit systems. Features NPT male-to-male threads and 3/4 in trade size. Prevents ingress of dust, moisture, and gases in classified environments
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