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When using RE7 TM, TP, MA, RA, RM, PP, PM,ML or MY relays with time delay adjustment potentiometers, these potentiometers must be connected in the following way:
The opposite ends of the potentiometer should be connected to Z1 and Z2
Wire the potentiometer wiper to Z2
The specification of potentiometers to be used for RE7 relays is as follows:
47K Ohm, Linear, 0.2W or greater. Not available from Schneider Electric.