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Dimensions [mm]

GW ... A4, ÜB ... A4, NB ... A4

2.5 x 9 dia. deep for equipment plug as per DIN 43 650 A

Integrated test nipple ø 9

Reset button

Type NB ... A4

Type ÜB ... A4

Made in Germany

PG 11

or plug

connection

Installation position

G 1/4 pressure connection

53,75 (LK 76)

4 X Ø 4.2

for M4 screws as per ISO 1207

Standard installation position

When installed horizontally, the pressure switch switches at a pressure

higher by approx. 0.5 mbar.

When installed horizontally overhead, the pressure switch switches at

a pressure lower by approx. 0.5 mbar.

When installed in an intermediate installation position, the pressure

switch switches at pressure deviating from the set reference value by

max.

0.5 mbar.

GW ... A4 / GW ... A4

M5 x 15 hex. screw, similar to DIN EN ISO 4762

for M4x 4.2 screws as per ISO 1207

Integrated test nipple

M5 hex. nut as per DIN EN ISO 1054

G 1/4 screw plug

152

14.3 x 2.4 O ring

4 ... 6