MTL3021 AND 3022,  loop powered.

SOLENOID/ALARM DRIVERS

MTL3021 – IIC, loop powered

MTL3022 – IIB, loop powered

The MTL3021 enables a device in a hazardous area to be controlled by a switch or voltage change in the safe area. It can drive any

certified intrinsically safe, low-power load, for example a solenoid or alarm, as well as non-energy-storing ‘simple apparatus’ such as an LED. The unit’s input/output isolation allows field cables to be earthed and the control switch to be connected into either side of the 24V dc supply circuit. The MTL3022 is similar but provides more power for driving heavy-duty loads eg high-powered solenoid valves in areas where the explosion risk is limited to IIB atmospheres.

MTL3000 series

Product Code Description

MTL3011    Switch/proximity detector relay - volt-free contacts

MTL3012    Switch/proximity detector relay - solid state  

MTL3013    Switch/proximity detector relay - 2-channel  

MTL3014    Switch/proximity detector relay - dual outputs

MTL3021_22  Solenoid/alarm driver ~ IIC loop powered

MTL3041    Repeater power supply - 4/20mA for 2-wire transmitters  

MTL3042    DC isolator - 4/20mA loop powered for I/P converters

MTL3043    DC isolator - 1/40mA for fire and smoke detctors

MTL3045    Isolating driver - 4/20mA for I/P converters  

MTL3046B  Repeater power supply - for ‘smart’ transmitters

MTL3052    Digital isolator - for signals up to 10kHz

MTL3054    Communications isolator/ repeater

MTL3058_59  Serial data interface ~ RS232 general purpose

MTL3071    Temperature converter ~ THC or emf input

MTL3072    Temperature converter ~ 3-wire RTD input

MTL3073    Temperature converter ~ THC or RTD input

MTL3081    Millivolt isolator - for low-level inputs

MTL3099    Dummy isolator - for terminating and isolating unused cores  

MTL3992    High stability power supply