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Learn more by watching our NLS 30258 | Three Pole 63Amp Isolating Switch | IP56 Weather Protected video.
The NLS 30258 is a three-pole 63-amp isolating switch rated 415V, designed for air conditioners and industrial isolation duties. The 30258 features a weatherproof polycarbonate enclosure with IP56 protection and complies with IEC/EN60947-3 and AS/NZS60947-3 standards.
Air conditioning installers and electricians working on machinery with high amperage loads often face the challenge of safe isolation. Padlocked isolators are mandated under electrical work regulations when maintenance or emergency shutdown is required. The NLS 30258 addresses this by providing padlock-capable both on and off positions and large terminals rated 6–8mm cable, making it suitable for heavy-duty applications on three-phase 415V circuits. The silica gel seal between lid and base keeps moisture and dust out in exposed outdoor environments.
Licensed electricians and HVAC contractors value the 30258 for straightforward sizing: twin 25mm screwed entries on top and bottom mounting blocks mean quick installation on existing conduit runs, with supplied 25–20mm reducers for smaller 20mm conduit if needed. The neutral link and earth link are housed internally, saving on external termination hardware and simplifying fault-finding. No creative wiring is needed — the 30258 handles isolation duties on AC compressors, heat pump switchgear, and heavy machinery without voltage drop or performance lag.
The NLS 30258 is not suitable for frequent load switching and must not be used to make or break electrical current under normal load. Use only as an isolating switch downstream of a main breaker or motor starter. Never operate the 30258 to cut off equipment under load, as the contacts may arc and degrade. The 63A rating applies to three-phase 415V only; do not use on single-phase or 240V supplies.
Verified Sparky Direct customer reviews: NLS 30258 Three Pole 63Amp Isolating Switch (30258)
"These isolating switches make great on /off units for machinery." — Rodney
(30258)
Yes, the 30258 carries IP56 weatherproof rating, which blocks water and dust ingress. The silica gel seal between the lid and base provides environmental protection for outdoor switchboards, rooftop AC units, and exposed mounting locations.
The 30258 is an isolating switch only and must never be used to break or make current under load. Always switch off via the main breaker or motor starter before operating the isolator. Using the 30258 under load will damage the contacts and create an arc hazard.
The large terminals on the NLS 30258 accept 6–8mm cable. No cable stripping or terminal preparation is required beyond standard termination practice.
Yes, the 30258 features facility for padlock attachment in both on and off positions. This enables conformity to electrical work lockout regulations and machinery maintenance safety procedures.
The NLS 30258 is rated 415V three-phase (three-pole) and is designed for industrial and commercial three-phase installations. Do not use the 30258 on single-phase 240V supplies.
Two 25–20mm reducers are supplied with the 30258. These adapters step the top and bottom 25mm screwed entries down to 20mm conduit, so you can fit the switch directly into existing 20mm conduit runs without removing the switch or modifying the installation.
The National Light Sources 30258 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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Warranty starts from Invoice Date
Domestic Use: 1 Year
Commercial Use: 1 Year
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | NATIONAL LIGHT SOURCES |
| SKU | 30258 |
| Model # | 30258NLS |
| Barcode # | 9336700004408 |
| Package Weight | 0.508kg |
| TYPE | VALUE |
|---|---|
| Brand | National Light Sources |
| Range | WeatherX |
| Colour | Resistant Grey |
| Rated Current (A) | 63 |
| Height (mm) | 84 |
| Width (mm) | 84 |
| Length (mm) | 174 |
| Complete / Skin Only / Grid Plate Only | Complete |
| Number of Switches / Gangs | 1 |
| Standards | IEC/EN60947-3 and AS/NZS60947-3 |
| Protection | IP56 |
| Number of Poles | 3 |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
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