New and reliable MTL7764+ safety barrier on sale with a good price,100% original new and brand.

MTL7764+ product description:

All MTL7700 range barriers are based on the same simple principle. Each channel contains two stages of pulse-tested Zener or forwardconnected 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 outputcurrent limiting circuits are employed. All models are certified ‘ia’ for all zones and ‘IIC’ for all explosive atmospheres (except MTL7707P+ and MTL7729P+, 'ia' 'IIB'). TERMINOLOGY 1. Safety description The safety description of a barrier, eg ‘10V 50Ω 200mA’, refers to the maximum voltage of the terminating Zener or forward diode while the fuse is blowing, the minimum value of the terminating resistor, and the corresponding maximum short-circuit current. It is an indication of the fault energy that can be developed in the hazardous area, and not of the working voltage or end-to-end resistance. 2. Polarity Barriers may be polarised + or –, or non-polarised (‘ac’). Polarised barriers accept and/or deliver safe-area voltages of the specified polarity only. Non-polarised barriers support voltages of either polarity applied at either end. 3. End-to-end resistance The resistance between the two ends of a barrier channel at 20°C, i.e. of the resistors and the fuse. If diodes or transistors are present, their voltage drop (transistors ON) is quoted in addition.