MTL4781+ FOR FOUR SWITCHES solid-state output.
The MTL4781+ is a barrier with four switch channels plus one supply channel. It has electronic overvolt protection and is designed solely for switch applications. It can interface with up to four hazardous-area switches or two relay/changeover contacts, providing four solid-state open-collector returns to the safe area. The status of all four switches is indicated by a bank of four LEDs on top of the module. The fifth channel is a single power output channel for all switches made available through two hazardous-area terminals. The module includes a current limit circuit which prevents the safety fuse blowing if short-term overvoltages are inadvertently applied to any of the safe-area terminals.
It is also reverse polarity protected. The module is capable of operating from bussed power.
Product Code Description
MTL4700 MTL4700 Series Common Specification
MTL4706+ 2ch - 2-wire 4/20mA & smart Tx
MTL4715+ 4ch - 12V DC applications
MTL4722+ 4ch - 18V DC applications
MTL4728– 4ch - negative & floating supplies
MTL4728+ 4ch - digital or 4/20mA outputs
MTL4755ac 3ch - 3-wire RTD applications
MTL4760ac 2x2ch - two thermocouples/AC sensors/4-wire RTD
MTL4763Pac 3x2ch - strain-gauge bridges
MTL4778ac 2x2ch - 2-wire DC & AC systems
MTL4781+ 4ch+1 - 4 switches + 1 supply
MTL4787+ 2x2ch - multi-purpose inputs/outputs
MTL4787P+ 2x2ch - hi-power multi-purpose inputs/outputs
MTL4788+ 2x2ch - 4/20mA Tx
MTL4788R+ 2x2ch - 4/20mA Tx + voltage output
MTL4796– 2x2ch - vibration probes
MTL4799 Dummy barrier