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HUBBELL Fused Watertight Interlock - Fused Watertight Interlocks
HUBBELLFused Watertight Interlocks

HUBBELL Fused Watertight Interlock

The HUBBELL Mechanical Interlock is a fused watertight interlock rated for 250V DC/600V AC, single/three phase, 30 A, 3 pole, 4 wire. It accepts Class J fuses and does not support reverse service. This unit is…

SKU 3G-OTH-13818

Brand
HUBBELL
Item
Fused Watertight Interlock
Category
Fused Watertight Interlocks
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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
HBL430MIFS2W
Type
Single/Three Phase, 30 A
Pole
3
Wire
4
Fuse Type
Class J
Reverse Service
No

Technical Documents

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

Product Description

The HUBBELL Mechanical Interlock is a fused watertight interlock rated for 250V DC/600V AC, single/three phase, 30 A, 3 pole, 4 wire. It accepts Class J fuses and does not support reverse service. This unit is identified by manufacturer part number HBL430MIFS2W.

Frequently Asked Questions

What is the HUBBELL Mechanical Interlock HBL430MIFS2W used for?

The HUBBELL Mechanical Interlock is a fused watertight interlock used to safely disconnect and protect industrial equipment in wet or harsh environments. It is suitable for single or three-phase applications up to 600V AC or 250V DC at 30 A, commonly found in manufacturing, processing, and utility plants.

What are the specifications of the HUBBELL Mechanical Interlock HBL430MIFS2W?

This HUBBELL interlock is rated for 250V DC/600V AC, single or three phase, 30 A, 3 pole, 4 wire. It accepts Class J fuses and does not support reverse service. The manufacturer part number is HBL430MIFS2W. It is designed as a fused watertight interlock for reliable circuit protection.

Where to buy the HUBBELL Mechanical Interlock HBL430MIFS2W worldwide?

You can source the HUBBELL Mechanical Interlock HBL430MIFS2W 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.

How to install the HUBBELL Mechanical Interlock HBL430MIFS2W?

Installation should follow HUBBELL guidelines and local electrical codes. Mount the interlock in a dry, accessible location, connect wiring per the 3-pole, 4-wire diagram, and insert Class J fuses of the correct rating. Ensure the interlock mechanism disconnects power before opening the cover. Always de-energize circuits before work.

Used in

Common applications for HUBBELL
Commercial lighting control — HUBBELL toggle switches (e.g., HBL1203STW) for 3-way switching in office corridors
Industrial maintenance — HUBBELL overhead cables (e.g., OC5MB-03) for tool balancers in assembly lines
Institutional wiring — HUBBELL rocker switches (e.g., DS115ST) for single-pole control in school classrooms
Facility upgrades — HUBBELL decorator wall plates (e.g., P262GY) for standard 2-gang outlet covers in commercial buildings
Electrical repair — HUBBELL panel terminal screws (e.g., HBLTSR) for replacing worn terminals in Series 16 devices
Modern interface — HUBBELL touch switches (e.g., WSS1277SS) for maintained 3-way control in hospitality settings
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HUBBELL Products

3G Electric supplies HUBBELL fused 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Watertight mechanical interlock for single or three-phase circuits. Rated 30 A, 3 pole, 4 wire, 600V AC or 250V DC. Non-reverse service. Suitable for industrial environments requiring enclosed disconnect switching
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Watertight mechanical interlock for single or three-phase circuits. Rated 30 A, 3 pole, 4 wire, 600V AC or 250V DC. Non-reverse service. Suitable for industrial environments requiring enclosed disconnect switching
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Watertight mechanical interlock rated 480V AC, three-phase, 20 A, 3 poles, 4 wires. Prevents plug insertion or removal under load for safe disconnection of industrial equipment. No reverse service capability. Suitable for environments requiring a sealed enclosure
Watertight interlock for industrial power applications requiring a secure, interlocked connection. Rated 240V AC, three-phase, 20 A, with 3 poles and 4 wires. Non-reverse-service device prevents plug insertion or removal while circuit is live
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Watertight interlock for industrial power applications requiring a secure, interlocked connection. Rated 240V AC, three-phase, 20 A, with 3 poles and 4 wires. Non-reverse-service device prevents plug insertion or removal while circuit is live
Watertight interlock rated 120/240V AC, single phase, 20 A, 3-pole, 4-wire. No reverse service. Used to safely connect and disconnect portable generators or temporary power sources, preventing simultaneous connection of utility and generator power
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Watertight interlock rated 120/240V AC, single phase, 20 A, 3-pole, 4-wire. No reverse service. Used to safely connect and disconnect portable generators or temporary power sources, preventing simultaneous connection of utility and generator power
Watertight interlock rated 60 A, 600V AC or 250V DC, single or three phase, 3-pole, 4-wire. No reverse service. Suitable for industrial disconnect applications requiring an enclosed, weather-resistant power break
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Watertight interlock rated 60 A, 600V AC or 250V DC, single or three phase, 3-pole, 4-wire. No reverse service. Suitable for industrial disconnect applications requiring an enclosed, weather-resistant power break

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Fused watertight interlock rated 120/240V AC, single phase, 60 A, 3 pole, 4 wire. Accepts Class J fuses; not configured for reverse service. Provides a fused disconnect for industrial equipment in harsh environments requiring safe power isolation
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Fused watertight interlock rated 250V DC/600V AC, single or three phase, 60 A, 3 pole, 4 wire. Accepts Class J fuses for overcurrent protection. Suitable for industrial power disconnects in wet or harsh environments
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