{"product_id":"kmb4-box-passive-safety-zener-barriers-atex-environments","title":"\"KMB4\" Box With Passive Safety Zener Barriers, For ATEX Environments","description":"\u003ch2\u003eKMB4 — Passive Safety Zener Barriers for ATEX Load Cell Connections\u003c\/h2\u003e\n\u003cp\u003eThe KMB4 range provides ATEX-certified passive Zener barriers for the intrinsically safe connection of load cells to weighing systems in hazardous areas. Available as a complete kit of three barriers housed in a ready-to-install IP65 ABS enclosure (KMB4), or as individual DIN rail barriers for supply (ZBPW), signal (ZBSG), and sense (ZBSN) lines, the range offers flexible configuration for Zone 1 gas and Zone 21 dust environments.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupports connection of up to 4 × 350 Ω load cells per barrier set.\u003c\/li\u003e\n\u003cli\u003eThree dedicated barriers protect the supply, signal, and sense lines independently for maximum signal integrity.\u003c\/li\u003e\n\u003cli\u003eIndividual barriers (ZBPW, ZBSG, ZBSN) are suitable for DIN rail mounting in a safe area or installation inside an explosion-proof enclosure.\u003c\/li\u003e\n\u003cli\u003eKMB4 kit provides all three barriers pre-installed in an ATEX-certified IP65 ABS enclosure — ready for direct field installation.\u003c\/li\u003e\n\u003cli\u003eAll barriers carry ATEX II (1) GD marking for Zone 1 gas and Zone 21 dust environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAvailable Models\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKMB4\u003c\/strong\u003e — Kit of 3 Zener barriers (ZBPW + ZBSG + ZBSN) in an IP65 ABS enclosure. ATEX marking: II 3(1)G Ex nA \u0026lt;ia Ga\u0026gt; IIC T4 Gc (−20 °C ≤ Ta ≤ +40 °C) for gas; II 3(1)D Ex tb \u0026lt;ia Da\u0026gt; IIIC T130 °C Dc IP65 (−20 °C ≤ Ta ≤ +40 °C) for dust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZBPW\u003c\/strong\u003e — Single Zener barrier for load cell \u003cstrong\u003esupply\u003c\/strong\u003e. DIN rail mount. ATEX II (1) GD \u0026lt;Ex ia Ga\u0026gt; IIC \u0026lt;Ex ia Da\u0026gt; IIIC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZBSG\u003c\/strong\u003e — Single Zener barrier for load cell \u003cstrong\u003esignal\u003c\/strong\u003e. DIN rail mount. ATEX II (1) GD \u0026lt;Ex ia Ga\u0026gt; IIC \u0026lt;Ex ia Da\u0026gt; IIIC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZBSN\u003c\/strong\u003e — Single Zener barrier for load cell \u003cstrong\u003esense\u003c\/strong\u003e. DIN rail mount. ATEX II (1) GD \u0026lt;Ex ia Ga\u0026gt; IIC \u0026lt;Ex ia Da\u0026gt; IIIC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSingle Channel Electrical Parameters\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSignal \u0026amp; Sense Barrier (ZBSG \/ ZBSN) — Um = 250 V:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFuse: 50 mA  |  Uo: 17.4 V  |  Io: 25 mA  |  Po: 0.11 W\u003c\/li\u003e\n\u003cli\u003eCo: 0.346 µF  |  Lo: 56.88 mH  |  Rmin: 705.6 Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSupply Barrier (ZBPW) — Um = 250 V:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFuse: 100 mA  |  Uo: 24 V  |  Io: 164 mA  |  Po: 0.98 W\u003c\/li\u003e\n\u003cli\u003eCo: 0.125 µF  |  Lo: 1.32 mH  |  Rmin: 147 Ω\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Combining two or more Zener barriers classified (1)GD \u0026lt;Ex ia\u0026gt; requires the overall assembly marking to be upgraded to (2)GD \u0026lt;Ex ib\u0026gt; in accordance with EN 60079-14.\u003c\/p\u003e","brand":"Dini Argeo","offers":[{"title":"KMB4","offer_id":44926585962818,"sku":null,"price":915.0,"currency_code":"GBP","in_stock":true},{"title":"ZBPW","offer_id":44926585995586,"sku":null,"price":170.0,"currency_code":"GBP","in_stock":true},{"title":"ZBSG","offer_id":44926586028354,"sku":null,"price":170.0,"currency_code":"GBP","in_stock":true},{"title":"ZBSN","offer_id":44926586061122,"sku":null,"price":170.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/6800\/8002\/files\/Scatola_ATEX_aperta_w.png?v=1784552486","url":"https:\/\/www.womag.co.uk\/products\/kmb4-box-passive-safety-zener-barriers-atex-environments","provider":"Womag","version":"1.0","type":"link"}