{"product_id":"hla50-255-led-type-1-spd","title":"HLA50-255 LED Type 1 SPD","description":"\u003cp data-start=\"0\" data-end=\"475\"\u003eThe HLA50-255 LED from \u003cspan class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"\u003e\u003cspan class=\"whitespace-normal\"\u003eHakel\u003c\/span\u003e\u003c\/span\u003e is a Type 1 surge protection device designed to manage high energy lightning currents at the point of entry of a low voltage installation, with the added advantage of visual status indication via an integrated LED. It is typically installed at the main switchboard, where it serves as the primary protection layer by diverting surge energy safely to earth before it can affect downstream equipment.\u003c\/p\u003e\n\u003cp data-start=\"477\" data-end=\"970\"\u003eIn practical applications, the device is used in installations where both high surge protection capability and quick visual status checking are important. This includes industrial sites, commercial buildings, data centres, and utility connected systems where maintenance teams need immediate confirmation of SPD health without additional testing equipment. It is particularly effective at the LPZ 0 to LPZ 1 boundary, intercepting high energy surges entering from the external network.\u003c\/p\u003e\n\u003cp data-start=\"972\" data-end=\"1550\"\u003eTechnically, the HLA50-255 LED utilises spark gap technology, enabling it to handle large impulse currents associated with lightning (10\/350 µs waveform). Under normal conditions, the device remains inactive with negligible leakage current. During a surge event, it creates a controlled discharge path to earth, safely dissipating the energy. Once the event passes, the device resets automatically. The addition of the LED provides a clear visual indication of operational status, allowing field personnel to quickly identify whether the device is functioning correctly.\u003c\/p\u003e\n\u003cp data-start=\"1552\" data-end=\"1918\"\u003eFrom a system design perspective, the HLA50-255 LED is used as part of a coordinated surge protection scheme, forming the first stage of protection. It absorbs the bulk of surge energy, allowing downstream Type 2 and Type 3 SPDs to handle residual voltages. This coordination ensures improved protection performance and longer service life of downstream devices.\u003c\/p\u003e\n\u003cp data-start=\"1920\" data-end=\"2226\"\u003eProper installation remains critical for performance. The SPD should be installed with short connection leads and low impedance earthing, ensuring efficient surge discharge. The LED indication also assists during commissioning and maintenance, reducing inspection time and improving system reliability.\u003c\/p\u003e","brand":"CHK Shop","offers":[{"title":"Default Title","offer_id":43782452543553,"sku":null,"price":270.0,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/6667\/7825\/files\/image_3.jpg?v=1776511436","url":"https:\/\/www.chkshop.com.au\/products\/hla50-255-led-type-1-spd","provider":"CHK Shop","version":"1.0","type":"link"}