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Detailed Specification Please refer to the Series 725 datasheet for full details on the Alarm Annunciator specification. Specials The details shown below are typical arrangements only, systems can be designed and manufactured to each customer’s exact requirements. Environment Operating Temperature:0 to 50ºC Storage Temperature:–20 to 80ºC Humidity:0-95% RH, non condensing Supply 85-264VAC or 24VDC Protection IP54

Technical Specification

Certification Self certified to EN50021:1999 under the ATEX Directive 100aGroup II, Category 3G, EEx nA (L) IIC T4(Ta -20ºC to +50ºC) Location Zone 2. Gas Groups IIC, IIB or IIA. Temp Class up to T4 Number of alarm ways Connections Systems are available in a range of sizes from2to 120 channels and with a choice of three window sizes. Material On the wall mounted version the Annunciator is wired to a row of terminals. The panel mounted version can be connected directly to the Annunciator.Terminals aresuitable for cable sizes up to 2.5mm Industry standard, steel, wall mounting enclosures or bespoke panel mounted versions both sealed to IP54. Stainless steel options can be supplied as an option.

Wall MountedVersion Panel MountedVersion

TEST ACCEPT RESET 2 and would bewired via the appropriate gland plate. Cable Entries Units arefitted with removable un-drilled gland plates to allow access to customer connections. Pushbuttons, Sounders and Beacons Remote pushbuttons & certified Sounders and Beacons can all be catered for as part of the overall alarm system. Hinged Door Outputs The front plexi-glass cover of the enclosureis hinged to allow easy access for configuration, wiring and commissioning. Units are equipped with dual common alarm and dual horn relays as standard.Individual repeat relays per channel andRS485 serial interface options areavailable on request.
Due to our policy of continuous product development, we reserve the right to amend specifications without notice. Doc NEX7250-0

NEX7250 Zone 2 Hazardous Area Alarm Annunciator - 19514 5

YEAR RTK Instruments Limited St James Business Park, Knaresborough, North Yorkshire, England. HG5 8PJTelephone: +44 (0)1423 580500Facsimile:+44 (0)1423 580501 Web: www.rtkinstruments.com Email: enquiry@rtkinstruments.com GUARANTEE FM14290ISO9001:2000