Danfoss Electronics MP 55E Installation Guide

Installation guide

Pressure switch MP 55E

060R9517

Refrigerants:

R1270, R290, R600, R600a

This product is validated in accordance to EN 60079-0:2012 + A11:2013. Ignition risk is evaluated in accordance to EN 60079-11:2012. See safety requirements at the end of instruction.

Operation range

Typ e

MP 55E -1 – 12 17 22

PS/MWP P

[bar]

test

Max. 80 °C 176 °F

15% Ag

Electrical connection

The MP-E pressure switch placed in explosive zone must always be wired through reliable Ex zener barrier, placed outside ex-zone, to ensure insucient energy supply to cause the ignition of surrounding atmosphere by an electrical spark or

Cables and cable entries approved for the application must be used and can not be in contact with sharp edges. Cables must be connected with adequate stress relief that way that pulling forces can not be carried throug the cable to the terminal.

the heating of components of circuitry.

Note:

The equipment to be used for electrical load limiting must always be approved for use in the

A particular system can be classied in dierent zones, for dierent parts of the system.ed

zone concerned.

Intrinsic safety protection method

EX - zone Non EX - zone

EX certied Zenner barrier

Signal

Electrical data for

intrinsically safe specication

(for all MP-E types):

Pi max: 1 W Ui max: 30 V Ii max: 0.1 A Ci max: 0.5 nF Li max: 0.2 µH

Must be used with certied Ex ic barrier (product matching) satisfying the input parameters.

Product marking

II3G

Ex ic IIB T6Gc

+ 2 hidden pages