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LEGRAND Mechanical Interlock: 380/440V AC, Three Phase, 30 A, 3 Pole - Watertight Interlocks
LEGRANDWatertight Interlocks

LEGRAND Mechanical Interlock: 380/440V AC, Three Phase, 30 A, 3 Pole

The LEGRAND Mechanical Interlock (MPN PS430MIR3W) is a watertight interlock rated for 380/440V AC, three-phase, 30 A, with 3 poles and 4 wires. This unit does not support reverse service.

SKU 3G-OTH-14235

Brand
LEGRAND
Item
Mechanical Interlock: 380/440V AC, Three Phase, 30 A, 3 Pole
Category
Watertight Interlocks
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Technical Specifications

LEGRAND
Manufacturer Part Number
PS430MIR3W
Voltage Rating
380/440V AC
Reverse Service
No
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LEGRAND Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LEGRAND Mechanical Interlock (MPN PS430MIR3W) is a watertight interlock rated for 380/440V AC, three-phase, 30 A, with 3 poles and 4 wires. This unit does not support reverse service.

Frequently Asked Questions

What is the LEGRAND Mechanical Interlock PS430MIR3W used for?

The LEGRAND Mechanical Interlock PS430MIR3W is used to prevent simultaneous operation of two power sources in industrial electrical panels. It is ideal for generator transfer, motor control, and safety isolation in watertight enclosures, ensuring compliance with lockout/tagout procedures in manufacturing and process plants.

What are the specifications of the LEGRAND PS430MIR3W?

The LEGRAND PS430MIR3W is a three-phase mechanical interlock rated for 380/440V AC, 30 A, with 3 poles and 4 wires. It is a watertight interlock with no reverse service capability. The manufacturer part number is PS430MIR3W, and it is designed for industrial environments requiring reliable source isolation.

Where to buy the LEGRAND PS430MIR3W worldwide?

You can source the LEGRAND PS430MIR3W 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 LEGRAND components for industrial applications.

How to install the LEGRAND Mechanical Interlock PS430MIR3W?

Install the LEGRAND PS430MIR3W in a watertight enclosure rated for the environment. Ensure power is disconnected, then mount the interlock per the manufacturer's wiring diagram, connecting the 3 poles and 4 wires to the respective sources. Verify mechanical operation before energizing. Consult a qualified electrician for compliance with local codes.

Used in

Common applications for LEGRAND
Commercial office wiring — LEGRAND Series 4000 raceway entrance ends for cable routing in exposed surface systems
Industrial control panels — LEGRAND 2400 series blank ends for terminating raceway runs in equipment enclosures
Educational facility power distribution — LEGRAND furniture power strips with USB for classroom desks
Healthcare facility low-profile cabling — LEGRAND 1500 series internal elbows for over-floor raceway turns
Retail display lighting — LEGRAND PN10 non-metallic raceways for adhesive-mounted cable management on walls
Data center cable segregation — LEGRAND 2400D divided device boxes for separating power and data in multichannel raceways

LEGRAND Products

3G Electric supplies LEGRAND 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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