The MTL5500 Series is the latest generation of MTL intrinsic safety isolators designed to meet the needs of the intrinsic safety (IS) interface market for application focussed projects, from single instrument loops to fully equipped cabinets. Incorporating advanced circuit design and innovative isolating transformer construction these isolators offer explosion protection and help protect electrical signals in hazardous areas ensuring a safe working environment.

DIN-rail mounting and plug-in signal and power connectors simplify installation and maintenance. These IS units are powered from a 20 to 35 V dc supply voltage, or, in some cases, from the signal itself.

The compact 16mm wide design reduces weight and gives a cost-effective high packing density and reduction in power consumption. A wide range of module options includes both single and multiple channel isolation barrier devices. They build on the success of the MTL5000 series to bring the benefits of galvanic isolators with exceptional design and reliability.,II (I) GD (Ex ia) IIC,IECEx, ATEX (Baseefa) FM, CSA

3-Port Isolation
High Packing density - Low power dissipation
Multi-channel I/O modules
Compatible with preceding MTL5000 series
Assessed for Functional safety IEC61508 applications
Required EX numbers and information displayed on the cover where applicable

This robust Zener barrier from Eaton's MTL range lets you safely establish electrical connections in hazardous areas. It consists of a resistor to limit the incoming current, zener diodes to reroute excess voltage and fuses for short-circuit protection. The energy-efficient unit consumes just 90mA (milliamperes) of current at 24V DC (direct current). It's backwards compatible with older devices in the MTL5000 series for versatility. You can use it with low-power applications such as light-emitting diodes (LED).

• Wide operating temperature range of -20°C to +60°C for use in harsh environments
• Rugged construction, suitable for use in hazardous locations
• Loop-powered operation for easy wiring and energy efficiency

Zener barriers channel excess energy to earth through the fuse and zener diodes, while galvanic isolators provide isolation between the circuits in the hazardous area and those in the safe area, using relays, transformers and optoisolators.

This zener barrier is mounted on a DIN rail for quick and simple installation.

Eaton formerly known as MTL