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HUBBELL HBL4100MI12W Watertight Interlock, 120/240V AC, 100A, 3 Pole, 4 Wire - Watertight Interlocks
HUBBELLWatertight Interlocks

HUBBELL HBL4100MI12W Watertight Interlock, 120/240V AC, 100A, 3 Pole, 4 Wire

The HUBBELL Mechanical Interlock (MPN HBL4100MI12W) is a watertight interlock rated for 120/240V AC, single phase, 100 A, with 3 pole and 4 wire configuration. This unit does not support reverse service. It is…

SKU 3G-OTH-14598

Brand
HUBBELL
Item
HBL4100MI12W Watertight Interlock, 120/240V AC, 100A, 3 Pole, 4 Wire
Part Number
HBL4100MI12W
Category
Watertight Interlocks
Available to Order
Also known as:HBL4100MI12WHUBBELL
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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

HUBBELL
Manufacturer Part Number
HBL4100MI12W
Voltage Rating
120/240V AC
Reverse Service
No

Technical Documents

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

Product Description

The HUBBELL Mechanical Interlock (MPN HBL4100MI12W) is a watertight interlock rated for 120/240V AC, single phase, 100 A, with 3 pole and 4 wire configuration. This unit does not support reverse service. It is designed for industrial applications requiring a durable, enclosed power disconnect.

Frequently Asked Questions

What is the HUBBELL Mechanical Interlock HBL4100MI12W used for?

The HUBBELL Mechanical Interlock HBL4100MI12W is a watertight interlock used as a durable, enclosed power disconnect in industrial settings. It safely controls single-phase 120/240V AC circuits up to 100 A, making it suitable for generators, transfer switches, and heavy equipment requiring a reliable, weather-resistant connection.

What are the specifications of the HUBBELL Mechanical Interlock HBL4100MI12W?

The HUBBELL Mechanical Interlock HBL4100MI12W is rated for 120/240V AC, single phase, 100 A, with 3 pole and 4 wire configuration. It does not support reverse service and is designed as a watertight interlock for industrial power disconnect applications. The manufacturer part number is HBL4100MI12W.

Where to buy the HUBBELL Mechanical Interlock HBL4100MI12W worldwide?

You can source the HUBBELL Mechanical Interlock HBL4100MI12W through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time; we supply this HUBBELL watertight interlock to industrial buyers globally.

How to install the HUBBELL Mechanical Interlock HBL4100MI12W?

Install the HUBBELL Mechanical Interlock HBL4100MI12W by mounting it in a dry, accessible location and connecting the 3-pole, 4-wire circuit per local electrical codes. Ensure the interlock mechanism prevents both sources from being engaged simultaneously. Always de-energize the system before installation and consult a qualified electrician for proper wiring.

Used in

Common applications for HUBBELL
Industrial power distribution — HBL20418 locking inlet for 250V DC/600V AC, 30A connections
Portable equipment connections — HBL5266C straight blade plug for 125V AC, 15A cords
Watertight industrial environments — HBLS330R6W pin and sleeve receptacle for 220-240V AC, 30A
Commercial facility wiring — HBL5262 duplex receptacle for 125V AC, 15A branch circuits
HVAC and light industrial tools — HBL5662 duplex receptacle for 250V AC, 15A equipment
Temporary power distribution — HBL3433GCB locking connector for 250V AC, 30A applications
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HUBBELL Products

3G Electric supplies HUBBELL watertight interlocks. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Watertight interlock for non-reverse service applications. Rated 120/208V AC, three-phase, 100 A, 4-pole, 5-wire. Used to safely control power in industrial environments, preventing connection or disconnection under load
HUBBELL
Watertight interlock for non-reverse service applications. Rated 120/208V AC, three-phase, 100 A, 4-pole, 5-wire. Used to safely control power in industrial environments, preventing connection or disconnection under load

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