Eaton MTL Intrinsically Safe Power Supplies

Eaton's Crouse-Hinds series range of MTL intrinsically safe (IS) isolated

power supplies are ideal for providing power to instrumentation in

hazardous process areas. They offer a wide range of different IS output

voltages, ranging from 4.8V - 17.7V, offering flexibility of options to best

suit a variety of applications.

9491-PS-PLUS models: Safe area / Zone 2 mount power supply that takes

standard 24V DC input and produces an intrinsically safe, 12V DC nominal

output. Capable of powering the Ethernet modules and other IS devices -

with Ex ia output (up to 200mA) for devices mounted in Zone 0. and Ex ib

output (up to 400mA) for devices mounted in Zone 1 Gas Group IIB

hazardous areas.

9492-PS-PLUS models: Safe area / Zone 2 mount power supply that takes

standard 24V DC input and produces an intrinsically safe, 12V DC nominal

output. The optimum solution for powering MTL 947x-ET/G Ethernet modules

and other IS devices - with Ex ia output (up to 200mA) for devices mounted

in Zone 0. and Ex ib output (up to 400mA) for devices mounted in Zone 1 Gas

Group IIB hazardous areas.

MTL 9493-PS models: Safe area / Zone 2 mount power supply range that takes

standard 24V DC input and produces intrinsically safe, 5.4 to 18V nominal output.

With Ex ia output for devices mounted in Zone 0 and Zone 1. Gas Group IIB and 

IIC hazardous areas.

Certifications and compliances

ATEX & IECEx approved

• Zone 0 outputs

• Group I, IIA or IIB or IIC, IIIC

• Zone 2 mounting

• T4 temperature classification

• Certified for -40°C to +70°C

FM & FMc approved (US and Canada)

9491-PS only

• Class I, Division 1 outputs

• Class I, Zone 0 Group IIB outputs

• Class I, Zone 1 Group IIB outputs

• Class I, Division 2 mounting

• Class I, Zone 2 mounting

• T4 temperature classification

• Certified for 0°C to +70°C

CE marked for compliance with LVD, EMC, ATEX and RoHS Directives.

Approvals held and approval details vary between models.

Please refer to certificates for specific details.

Design features

• Isolated power supply

• Zone 2 & Division 2 mountable

• DIN rail mounting

• ATEX / IECEx certified

• FM / FMC approved

• 200mA at 10.9V DC - Ex ia IIB Groups C, D output

• 400mA at 11.8V DC - Ex ib IIB output

• Power over Ethernet option