{"product_id":"aperta-24v-4-2a-power-supply-unit-for-multi-way-intercom-system","title":"Aperta 24V 4.2A Power Supply Unit for Multi-Way Intercom System","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe Aperta APPOWMW is a 24VDC 4.2A power supply unit designed to power ESP's multi-way intercom systems. Housed in a ventilated metal enclosure measuring 100mm wide by 200mm long by 40mm deep, the PSU converts mains voltage to regulated 24VDC output via screw terminals on the front panel.\u003c\/p\u003e\n\u003cp\u003eOne power supply is required per multi-way intercom system regardless of the number of handsets or door stations installed, making this the central power source for residential and small commercial intercom installations. The unit mounts inside an electrical enclosure or cabinet using the four corner mounting holes, with cable entry via knockouts on the rear panel. The 4.2A output capacity handles typical multi-way configurations including multiple handsets, door release mechanisms and camera feeds without requiring additional PSUs.\u003c\/p\u003e\n\u003cp\u003eThe perforated metal top panel provides passive ventilation to dissipate heat during continuous operation, while the compact footprint allows the PSU to fit inside standard distribution boards or wall-mounted enclosures alongside other low-voltage equipment. The screw terminals accept wire gauges typically used in structured wiring and access control installations, and the regulated 24VDC output protects connected intercom equipment from voltage spikes and fluctuations on the mains supply.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Net Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.62\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.72\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e14.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Length (mm)\u003c\/td\u003e\n\u003ctd\u003e120\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Width (mm)\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Height (mm)\u003c\/td\u003e\n\u003ctd\u003e210\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Length (mm)\u003c\/td\u003e\n\u003ctd\u003e490\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Width (mm)\u003c\/td\u003e\n\u003ctd\u003e270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Height (mm)\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_APPOWMW_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/manual_APPOWMW.pdf\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eHow many handsets can this power supply support?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 24VDC 4.2A output is rated to power a complete ESP Aperta multi-way intercom system regardless of handset count. Typical residential installations with 2-4 handsets and one door station operate well within the 4.2A capacity. Larger systems with door release mechanisms or multiple camera feeds may approach the limit, so consult the system manual for power budget calculations if installing more than four handsets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this require professional installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The power supply connects directly to mains voltage and requires installation by a qualified electrician in compliance with BS 7671 wiring regulations. The unit must be mounted inside an electrical enclosure with appropriate cable entry glands and earthing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan multiple power supplies be used in parallel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eESP specifies one power supply per multi-way system. Running multiple PSUs in parallel is not recommended and may cause voltage regulation issues. If the 4.2A capacity is insufficient, contact ESP or Niori to confirm whether your proposed system configuration exceeds the rated capacity before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat dimensions are needed for cabinet mounting?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PSU measures 100mm x 200mm x 40mm and requires a minimum internal cabinet depth of 50mm to accommodate cable connections behind the screw terminals. The four corner mounting holes accept M4 fixings spaced on a 90mm x 190mm pitch.\u003c\/p\u003e","brand":"ESP","offers":[{"title":"Default Title","offer_id":45294155661579,"sku":"APPOWMW","price":63.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/APPOWMW_e6d3a13e-9c23-4d91-8950-fb711c214296.jpg?v=1714668800","url":"https:\/\/niori.co.uk\/products\/aperta-24v-4-2a-power-supply-unit-for-multi-way-intercom-system","provider":"Niori","version":"1.0","type":"link"}