Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Describe the job or paste specifications. Press Enter or Search.
RFQ CartGet a QuoteSign inSign up
3M HDBB-340-1-250 Heat Shrink Breakout Boot - Heat Shrink Breakout Boots
3MHeat Shrink Breakout Boots

3M HDBB-340-1-250 Heat Shrink Breakout Boot

<p>The 3M HDBB-340-1-250 Heat Shrink Breakout Boot is a black, single-piece boot designed to protect and seal cable splices and terminations. With an inner diameter of 3.2 inches before shrinking and 2 inches after…

SKU 3G-OTH-53259

Also listed as: HDBB3401250 · HDBB 340 1 250

Brand
3M
Item
HDBB-340-1-250 Heat Shrink Breakout Boot
Part Number
HDBB-340-1-250
Category
Heat Shrink Breakout Boots
Available to Order
Also known as:HDBB-340-1-2503M
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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

3M
Manufacturer Part Number
HDBB-340-1-250
Type
Black
Color
Black
I.D. After Shrinking
2 in
I.D. Before Shrinking
3.2 in

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

<p>The 3M HDBB-340-1-250 Heat Shrink Breakout Boot is a black, single-piece boot designed to protect and seal cable splices and terminations. With an inner diameter of 3.2 inches before shrinking and 2 inches after shrinking, it provides a secure, moisture-resistant seal for a range of cable sizes. This breakout boot is ideal for use in industrial, commercial, and utility applications where reliable insulation and strain relief are critical.</p><p>As a Singapore-based supplier, 3G Electric offers this 3M boot with worldwide shipping. For Singapore buyers, we provide SGD quotes on request and handle GST, ensuring a smooth procurement process. Enjoy fast delivery within Singapore and Southeast Asia.</p>

Frequently Asked Questions

What are the inner diameters of the 3M HDBB-340-1-250 before and after shrinking?

The inner diameter is 3.2 inches before shrinking and 2 inches after shrinking.

Can I get a quote in SGD and is GST handled for Singapore orders?

Yes, we provide SGD quotes on request, and for Singapore buyers, GST is handled. Contact us for a quote.

Used in

Common applications for 3M
Industrial process water filtration — 3M solid polypropylene cartridge (e.g., RT10Q16G20NN, 7 micron) for sediment removal in manufacturing lines.
Cooling tower pre-treatment — 3M string-wound cartridge (e.g., RT39B16G20NN, 30 micron) to protect heat exchangers from particulate fouling.
Food and beverage rinse water — 3M 1 micron solid cartridge (RT10Y16G20NN) for fine filtration to meet quality standards.
Chemical processing feed water — 3M 27 micron solid cartridge (RT30L16G20NN) for high-flow sediment reduction upstream of sensitive equipment.
Wastewater effluent polishing — 3M 2 micron string-wound cartridge (RT09Y16G20NN) for final particulate removal before discharge or reuse.
Pharmaceutical utility water — 3M 0 micron string-wound cartridge (RT09L16G20NN) for sub-micron filtration in critical systems.
Not sure this is the right part? Photo-identify it→

3M Products

3G Electric supplies 3M heat shrink breakout boots. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
This heat shrink breakout boot is used to seal and protect cable splices and terminations in electrical and industrial applications. It provides environmental sealing and strain relief for multi-conductor cables. The boot has a 2.35 in inner diameter before shrinking and a 1 in inner diameter after shrinking. Color is black
3M
This heat shrink breakout boot is used to seal and protect cable splices and terminations in electrical and industrial applications. It provides environmental sealing and strain relief for multi-conductor cables. The boot has a 2.35 in inner diameter before shrinking and a 1 in inner diameter after shrinking. Color is black
This 3M heat shrink breakout boot is used to protect and seal cable splices where multiple cables branch from a single jacket. It provides strain relief and environmental sealing in electrical installations. The boot has a 1.5 in inner diameter before shrinking and 0.69 in after shrinking, accommodating cable transitions. Color is black, sold individually
3M
This 3M heat shrink breakout boot is used to protect and seal cable splices where multiple cables branch from a single jacket. It provides strain relief and environmental sealing in electrical installations. The boot has a 1.5 in inner diameter before shrinking and 0.69 in after shrinking, accommodating cable transitions. Color is black, sold individually
Black heat shrink breakout boot with 1.9 in inner diameter before shrinking and 0.9 in after shrinking. Used to seal and protect cable splices and terminations where multiple cables branch from a single jacket, providing environmental sealing and strain relief. Pack of 1
3M
Black heat shrink breakout boot with 1.9 in inner diameter before shrinking and 0.9 in after shrinking. Used to seal and protect cable splices and terminations where multiple cables branch from a single jacket, providing environmental sealing and strain relief. Pack of 1
Black heat shrink breakout boot with a 1.7-inch inner diameter before shrinking and 0.9-inch after shrinking. Used to seal and protect cable splices and terminations, providing environmental sealing and strain relief at cable breakout points in industrial electrical installations
3M
Black heat shrink breakout boot with a 1.7-inch inner diameter before shrinking and 0.9-inch after shrinking. Used to seal and protect cable splices and terminations, providing environmental sealing and strain relief at cable breakout points in industrial electrical installations
This black heat shrink breakout boot from 3M has a 1.75 in inner diameter before shrinking and 0.98 in after shrinking. It is used to seal and protect cable splices and terminations where multiple cables branch from a main cable, providing environmental sealing and strain relief. Sold in a pack of 1
3M
This black heat shrink breakout boot from 3M has a 1.75 in inner diameter before shrinking and 0.98 in after shrinking. It is used to seal and protect cable splices and terminations where multiple cables branch from a main cable, providing environmental sealing and strain relief. Sold in a pack of 1

More from 3M

View all 3M parts →
This 3M heat shrink breakout boot is designed to seal and protect cable splices and terminations at breakout points. It provides environmental sealing and strain relief for electrical and telecommunications cable management. The boot shrinks from a 1.2-inch inner diameter to 0.5 inches, ensuring a secure fit over cable jackets. Color is black, pack size is 1
3M
This 3M heat shrink breakout boot is designed to seal and protect cable splices and terminations at breakout points. It provides environmental sealing and strain relief for electrical and telecommunications cable management. The boot shrinks from a 1.2-inch inner diameter to 0.5 inches, ensuring a secure fit over cable jackets. Color is black, pack size is 1
Black heat shrink breakout boot for protecting cable splices and terminations in multi-conductor cables. Inner diameter before shrinking is 2.36 in, after shrinking 0.96 in. Used to seal and insulate branch points, preventing moisture ingress and mechanical damage. Pack of 1
3M
Black heat shrink breakout boot for protecting cable splices and terminations in multi-conductor cables. Inner diameter before shrinking is 2.36 in, after shrinking 0.96 in. Used to seal and insulate branch points, preventing moisture ingress and mechanical damage. Pack of 1
This black heat shrink breakout boot from 3M is designed to protect cable splices and terminations where multiple cables branch from a single jacket. It seals against moisture and abrasion in industrial electrical installations, panel building, and heavy equipment wiring. The boot has an inner diameter of 2.65 inches before shrinking and 1.4 inches after shrinking
3M
This black heat shrink breakout boot from 3M is designed to protect cable splices and terminations where multiple cables branch from a single jacket. It seals against moisture and abrasion in industrial electrical installations, panel building, and heavy equipment wiring. The boot has an inner diameter of 2.65 inches before shrinking and 1.4 inches after shrinking
Black heat shrink breakout boot with 1.2 in inner diameter before shrinking and 0.6 in after shrinking. Used to protect and seal cable splices and terminations where multiple cables branch from a single jacket, providing strain relief and environmental sealing in electrical installations
3M
Black heat shrink breakout boot with 1.2 in inner diameter before shrinking and 0.6 in after shrinking. Used to protect and seal cable splices and terminations where multiple cables branch from a single jacket, providing strain relief and environmental sealing in electrical installations
Black heat shrink breakout boot for sealing and protecting cable splices and terminations. Inner diameter before shrinking is 2.39 in, after shrinking is 1.45 in. Used for environmental sealing and strain relief at cable breakout points in electrical and industrial applications
3M
Black heat shrink breakout boot for sealing and protecting cable splices and terminations. Inner diameter before shrinking is 2.39 in, after shrinking is 1.45 in. Used for environmental sealing and strain relief at cable breakout points in electrical and industrial applications
Black heat shrink breakout boot with 0.9 in inner diameter before shrinking and 0.36 in after shrinking. Used to seal and protect cable splices and terminations, providing environmental sealing and strain relief for multi-conductor cables in electrical and telecommunications applications
3M
Black heat shrink breakout boot with 0.9 in inner diameter before shrinking and 0.36 in after shrinking. Used to seal and protect cable splices and terminations, providing environmental sealing and strain relief for multi-conductor cables in electrical and telecommunications applications
Black heat shrink breakout boot with a 3-inch inner diameter before shrinking and 1.9 inches after shrinking, 5 inches long. Used to seal and protect cable splices and terminations, providing environmental sealing and strain relief for multi-conductor cables in electrical installations
3M
Black heat shrink breakout boot with a 3-inch inner diameter before shrinking and 1.9 inches after shrinking, 5 inches long. Used to seal and protect cable splices and terminations, providing environmental sealing and strain relief for multi-conductor cables in electrical installations
This black heat shrink breakout boot from 3M has an inner diameter of 0.8 inches before shrinking and 0.37 inches after shrinking. It is used to seal and protect cable splices and terminations, providing strain relief and environmental sealing for multi-conductor cables in electrical and industrial applications
3M
This black heat shrink breakout boot from 3M has an inner diameter of 0.8 inches before shrinking and 0.37 inches after shrinking. It is used to seal and protect cable splices and terminations, providing strain relief and environmental sealing for multi-conductor cables in electrical and industrial applications

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first