Tuesday 9 March 2010

EX i isolation amplifier with SIL and Zone 2 certs

Phoenix Contact has added two new modules to its range of safety-relevant applications: The repeater power supply PI-EX-RPSS and the isolation amplifier PI-EX-AIS correspond to the requirements of EN 61508 for Safety Integrity Level (SIL) 2 and have been available since autumn 2009.

The modules, which are certified as associated intrinsically safe equipment, also have protection type EX n and can therefore also be installed as electrical equipment in Zone 2. This extends the options for users when it comes to flexible installation concepts.

Both modules belong to the pluggable PI-EX product line for potentially explosive areas according to protection type EX i – which permits efficient and versatile control cabinet solutions. Combination with the basic terminal block allows direct installation at the switching level of the control cabinet as well as pre-wiring of the modules, which are just 12.4 mm wide.

The required electronics can then also be subsequently plugged in. Alternatively, motherboards are available as additional basic elements, with which system cabling can be established.

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