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Montageanweisung  
Operating Instructions 
Instrucciones de Montaje 
Instructions de Montage 
Instruzioni d’impiego 

 

 

MDR 53

Steuerdruckschalter / Control pressure switch

 
 

The relevant standards for running and installing electrical appliances are to be observed. 
Installation and connection by skilled personnel only, after installing accessories function 
of device to be checked by skilled personnel only. 

 

 

 

 

 

 

EN/IEC 60947 - 5 - 1 (AC-15) 

 

I

e

 

 

I

the

 

 

 

NH00/gL 

 

U

e

 

(50/60 Hz) 

4 A 

10 A 

10 A 

250 V~

 

 

 

CAUTION: Pressure setting is only possible when applying 
                  pressure to the switch 

 

Cut-out pressure p

o

 

 

Differential 

Δ

Δ

p = 

p

o – 

p

 

Press wheel downwards

 

 

 

 

 

 
 
 
 
 

 

 

 

If the spindle moves when turning, lowest 
possible 

Δ

p

 has been reached. In order to 

loosen, turn wheel to the left holding the 
spindle tight. 

p

o

 lower: 

turn wheel 
to the left 

p

o

 higher: 

turn wheel 
to the right 

Δ

p

 lower: 

turn wheel 
to the right 

Δ

p

 higher: 

turn wheel 
to the left

 

Spindle 

IP 54

U

N

 

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