HUBBELL HBL420MI12W Watertight Interlock, 120/240V AC, 20A, 3 Pole, 4 Wire
The HUBBELL Mechanical Interlock (MPN HBL420MI12W) is a watertight interlock rated for 120/240V AC, single phase, 20 A, with 3 poles and 4 wires. This unit does not support reverse service.
SKU 3G-OTH-14065
Local availability & support — the Philippines
- Delivery
- 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
- Payment
- Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
- Ships to
- Manila, Quezon City, Cebu, Davao, Batangas
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Product Description
The HUBBELL Mechanical Interlock (MPN HBL420MI12W) is a watertight interlock rated for 120/240V AC, single phase, 20 A, with 3 poles and 4 wires. This unit does not support reverse service.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the HUBBELL Mechanical Interlock HBL420MI12W used for?
The HUBBELL Mechanical Interlock HBL420MI12W is a watertight interlock used to safely connect and disconnect portable generators or temporary power sources in industrial and commercial settings. It prevents simultaneous connection of utility and generator power, ensuring operator safety during maintenance or backup power operations.
What are the specifications of the HUBBELL Mechanical Interlock HBL420MI12W?
The HUBBELL Mechanical Interlock HBL420MI12W is rated for 120/240V AC, single phase, 20 A, with 3 poles and 4 wires. It is a watertight interlock with no reverse service capability. The manufacturer part number is HBL420MI12W, and it is designed for reliable electrical isolation in demanding environments.
Where to buy the HUBBELL Mechanical Interlock HBL420MI12W worldwide?
You can source the HUBBELL Mechanical Interlock HBL420MI12W through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine HUBBELL components for your project needs.
How to install the HUBBELL Mechanical Interlock HBL420MI12W?
Install the HUBBELL Mechanical Interlock HBL420MI12W by mounting it in a suitable watertight enclosure, connecting line and load conductors per the wiring diagram, and ensuring the interlock mechanism prevents both sources from being engaged simultaneously. Always follow local electrical codes and consult a qualified electrician for safe installation.
Used in
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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.
