Product News

Do you need MTL5500 range MTL5546 ISOLATING DRIVER for 4–20mA HART® valve positioners?

News June 24, 2020

Do you need MTL5500 range MTL5546 ISOLATING DRIVER for 4–20mA HART® valve positioners?

The MTL5500 range launches a new industry standard for DIN rail mounting products, ideally suited to a wide variety of interface tasks for process instrumentation.

The MTL5500 range modules are versatile yet simple to apply; use the latest technology and yet are well proven.

These contrasting attributes stem from the progression of our expertise in the design and manufacture of isolators for intrinsic safety and the application of innovative technology to achieve the required separation and segregation of the circuits.

The MTL5500 (DIN-rail mounting) and MTL4500 (backplane mounting) isolators share a common design, differing only in the mechanical mounting and connection methods.


MTL5546  1ch 4-20mA smart isolating driver + LFD

MTL4546/C/Y – MTL5546/Y ISOLATING DRIVER for 4–20mA HART® valve positioners with line fault detection

The MTLx546 accepts a 4/20mA floating signal from a safe-area controller to drive a current/pressure converter (or any other load up to 800Ω) in a hazardous area. For HART valve positioners, the module also permits bi-directional transmission of digital communication signals. Process controllers with a readback facility can detect open or short circuits in the field wiring: if these occur, the current taken into the terminals drops to a preset level. The MTL4546C and the MTLx546Y are very similar to the MTLx546 except that they provide open circuit detection only

(i.e. no short-circuit detection).


MTL5500 Series Barriers

Part Number

MTL5501-SR, MTL5510, MTL5510B, MTL5511, MTL5513, MTL5514, MTL5514D, MTL5516C, MTL5517, MTL5521, MTL5522, MTL5523, MTL5523V, MTL5523VL, MTL5524, MTL5525, MTL5526, MTL5531, MTL5532, MTL5533, MTL5541, MTL5541A, MTL5541AS, MTL5541S, MTL5544, MTL5544A, MTL5544AS, MTL5544D, MTL5544S, MTL5546, MTL5546Y, MTL5549, MTL5549Y, MTL5561, MTL5575, MTL5576-RTD, MTL5576-THC, MTL5581, MTL5582



MTL5500 series

Part NumberDescription

Digital Input  

MTL5501-SR 1ch DI failsafe solid-state output + LFD alarm

MTL55104ch DI solid-state ouput

MTL5510B4ch DI multifunction solid-state output

MTL55111ch DI relay output

MTL5513 2ch DI solid-state output

MTL5514 1ch DI relay output + LFD alarm

MTL5514D 1ch switch/prox input, dual output relay 

MTL5516C2ch DI with changeover relay output

MTL55172ch DI relay output + LFD alarm

Digital Output 

MTL5521Loop powered solenoid driver, IIC 

MTL5522 Loop powered solenoid driver, IIB  

MTL5523Solenoid driver with LFD 

MTL5523V - VL Solenoid/Alarm driver with voltage control 

MTL5524 Switch operated solenoid driver 

MTL5525Loop powered solenoid driver low power 

MTL55262ch switch operated relay   

Analogue Input 

MTL55411ch 2/3 wire Transmitter repeater 

MTL5541A 1ch Transmitter repeater, passive input

MTL5541AS1ch Transmitter repeater, passive input, current sink

MTL5541S1ch 2/3 wire Transmitter repeater, current sink 

MTL5544 2ch 2/3 wire Transmitter repeater 

MTL5544A 2ch Transmitter repeater, passive input 

MTL5544AS 2ch Transmitter repeater, passive input, current sink

MTL5544D1ch 2/3 wire Transmitter repeater, dual output

MTL5544S2ch 2/3 wire Transmitter repeater, current sink

Analogue Output 

MTL55461ch 4-20mA smart isolating driver + LFD

MTL5546Y 1ch 4-20mA smart isolating driver + oc LFD 

MTL55492ch 4-20mA smart isolating driver + LFD 

MTL5549Y2ch 4-20mA smart isolating driver + oc LFD

Temperature Input  

MTL55751ch Temperature converter, RTD / THC with alarm

MTL5576-RTD2ch Temperature converter, RTD 

MTL5576-THC2ch Temperature converter, THC 

MTL55811ch mV/THC isolator for low-level signals

MTL55821ch resistance isolator 

Pulse and Vibration  

MTL5531 1ch vibration probe interface

MTL5532 1ch pulse isolator, digital or analogue output

MTL55332ch vibration probe interface

Fire and Smoke  

MTL5561 2ch loop-powered, for fire and smoke detectors   

General  

MPA5500 85 - 265V ac power adaptor

MTL5599Dummy isolator 

MTL599124V dc power supply