About This Product

The NHP 1500 Volt 32 Amp 4 Pole DC IP66 Enclosed Isolator Switch is a weatherproof DC switch disconnector built for solar PV isolation duties where a 1500V DC rating is required. This exact model is the NHP NL432PV, a 4 pole, 32A enclosed isolator from the NLINE range with an IP66 enclosure for outdoor use. It is designed to provide reliable local DC isolation for PV arrays and related DC circuits in residential and commercial solar installations.

The unit uses a UV-resistant polycarbonate enclosure and includes practical installer features such as multiple M25 cable entry options, a padlockable OFF position and solid weather sealing. It is a straightforward enclosed DC isolator for installers who want a compliant, purpose-built rooftop solar switch rather than a generic enclosure and switch combination.

Who This Product Suits

This isolator suits Australian solar installers, electricians and system designers working on PV systems that need a 1500V DC enclosed isolator with a 32A current rating. It is suited to residential and commercial rooftop solar jobs where a compact, weatherproof external DC isolator is needed.

It is also a good fit where the job calls for a 4 pole DC isolator, flexible cable entry options and an enclosure that can handle exposed outdoor conditions. For installers wanting a familiar NHP enclosure style with practical mounting and lock-off features, this model is a sensible match.

Specifications Explained

1500V DC rating: This model is rated to 1500V DC, making it suitable for higher-voltage PV array isolation applications.

32A current rating: The switch has a rated permanent current of 32A, which is appropriate for many rooftop solar string isolation duties.

4 pole construction: The 4 pole layout is used for DC switching arrangements where multiple poles are required in the isolator design.

IP66 enclosure: The enclosure is rated IP66 at the front side, helping protect the switch against dust and water ingress in outdoor installations.

Electrical performance: Rated operating voltage is 1500V, rated insulation voltage is 1500V, and impulse withstand voltage is 8kV.

Conductor capacity: It accepts conductors from 4mm? to 16mm?, which suits common solar cabling and termination requirements.

Installer-friendly details: The enclosure includes 4 x M25 threaded top and bottom entries, 2 x rear M25 knockouts, a padlockable OFF position, internal mount pods and a pre-fitted pressure compensation device.

Summary

The NHP 1500 Volt 32 Amp 4 Pole DC IP66 Enclosed Isolator Switch is a practical, purpose-built DC isolator for solar work. It combines a 1500V DC rating, 32A capacity, 4 pole switching and an IP66 weatherproof enclosure in a compact format that suits exposed rooftop and external mounting positions.

For installers, the value is in the usable cable entries, solid enclosure construction, lockable OFF position and known NHP form factor. It is a straightforward option when the job needs a compliant enclosed DC isolator for Australian PV installations.

Further Information From The Manufacturer

NHP 1500 Volt 32 Amp 4 Pole DC IP66 Enclosed Isolator Switch by NHP is a fully compliant switch with AS60947.3:2018, suitable for use throughout Australia and New Zealand. The NHP NL432PV features a robust IP66NW polycarbonate enclosure, ensuring protection against damaging moisture ingress and UV exposure. It also has superior temperature performance, conforming to AS5033:2018, and a long-lasting service life with reliable switching. The switch has an arcing time of <3 ms, ensuring utmost safety and protection, and is padlockable in the OFF position.

Key Features

• Enclosure Protection: IP66NW polycarbonate enclosure for protection against moisture ingress and UV exposure
• Compliance Standards: Fully compliant with AS60947.3:2018, suitable for use throughout Australia and New Zealand
• Temperature Performance: Superior temperature performance, conforming to AS5033:2018
• Switching Reliability: Long-lasting service life and reliable switching
• Arcing Time: Arcing time <3 ms for utmost safety and protection
• Enclosure Entries: 4 x M25 top and bottom threaded entries with injected TPE seal
• Rear Knockouts: 2 x M25 rear knockouts for cable entries
• Pressure Compensation Valve: Pre-fitted pressure compensation valve as standard
• Mounting Provision: Provision for external mounting
• Padlockable: Padlockable in OFF position

Main Benefits

• Enhanced Safety: The NHP 1500 Volt 32 Amp 4 Pole DC IP66 Enclosed Isolator Switch provides utmost safety and protection with an arcing time of <3 ms
• Reliable Performance: The switch has a long-lasting service life and reliable switching, reducing the need for frequent replacements
• Easy Installation: The switch has a provision for external mounting and is padlockable in the OFF position, making installation and maintenance easier
• Compliance: The switch is fully compliant with AS60947.3:2018, suitable for use throughout Australia and New Zealand, reducing the risk of non-compliance
• Durability: The robust IP66NW polycarbonate enclosure ensures protection against damaging moisture ingress and UV exposure, increasing the switch’s lifespan

Weights & Measurements Information

About NHP

NHP is a well-established electrical manufacturer and distributor operating across Australia and New Zealand. The brand is widely known in the local electrical trade for switchgear, industrial electrical products, protection devices and enclosure-based solutions used in commercial, industrial and energy applications.

In the solar and electrical space, NHP products are commonly chosen by installers who want familiar specifications, trade-recognised support and hardware suited to Australian conditions. Their NLINE isolator range is aimed at practical field installation, compliance and dependable day-to-day service.