Visit and request live test run video and test report, Industrial Sol Pte Ltd Singapore, Jurong East - isolonline QSO456 DNH MTL Instruments MTL7787+ Shunt-Diode Safety Zener Barrier DIN Rail Mountable DIN-rail mounting safety barriers Output Channel Uo: 28v Io: 93mA Um: 250V Simple installation onto standard DIN top-hat railing Removable colour-coded terminals for easy connection Can accommodate conductors up to 2.5 mm Supports one zone of I.S. products Dimensions (LxWxH), approx : 10.5cm x 1.26cm x 9cm shunt- diode safety barrier (-20c ta +60c) MTL Instruments barriers are intrinsically safe ?shunt diode? safety barriers. They are passive network devices that use Zener diodes, resistors, and fuses to safely divert excess electrical energy to ground and thus prevent sparking in or overheating of equipment in hazardous areas. Key benefits of MTL Instruments barriers are low cost and the ability to operate with data in analog DC or high-speed digital forms. Model MTL7728+ is an intrinsically safe, zone-powered, Zener-diode barrier for use in conventional fire detection systems for protection within hazardous areas. Each Zone contains two stages of pulse-tested Zener or forward- connected diodes and an 'infallible' terminating resistor. In the event of an electrical fault in the safe area, the diodes limit the voltage that can reach the hazardous area and the resistor limits the current. A fuse protects the diodes, and the two stages of voltage limitation ensure continued safety if either stage should fail. No active output-current limiting circuits are employed. Model MTL7728+ is certified 'ia' for all zones and 'IIC' for all explosive atmospheres. Have some marks and scratches due to old stock. All the pictures are Organic and this part is physically in our stock Condition and Details: This is a Used item in good condition Not In the Original Packing No Accessories / Cables or probe (only what showing in actually given pictures and in the description). Old Stock. Shipping: Usually, we ship same business day, subject to clear funds into our account Standard order processing time is 4 business days Item will be packed as per International Standard, International Orders: DHL / SingPost / EMS * Expedited shipping is available for an extra fee. * International buyers pay all custom, duties, taxes brokerage fees at their end Warranty and Returns: Warranty: 30 DAYS Money Back or Replacement, buyer pays return shipping Product Returns: Returns: Return to Base Warranty, Any type of power failure/burn / physical damage / tempered seal will void the warranty. Payment: Payment Methods: PayPal Credit Cards Wire-transfer: Kindly contact us for payment instructions International buyers without PayPal: Kindly contact us before bidding About Us: We deal in Semiconductor Wafer Handling Parts/Components/machinery and types of equipment. A Verity of Industrial Automation Equipment and Parts. Industrial PCs, PLCs, HMI, Controllers, and Sensors. Industrial robotics, Data Acquisition, and Test Measurement. Industrial Single Board Computers. Marine Parts / Equipments. Oil Gas and offshore station. Lab and Research Equipments. We Source, We Refurbish, We Service and We also Repair ?please contact for any further detailed inquiries.