Electrical Connection - JUMO ATHf-SW Operating Instructions Manual

4.2

Electrical connection

Steps
H
Connection
diagrams
✱ Open housing. ➩ Chapter 3.2 "Opening the housing", page 10.
✱ Pull off protective cover.
✱ Pass the connecting cable (cable diameter 5 to 10 mm) through the cable
gland ( A ). Screw connection for up to 2.5 mm
✱ Make the connection to the terminals ( 1, 2 and 4 ) according to the con-
nection diagram.
✱ Connect protective earth conductor to the terminal PE
✱ Replace protective cover.
✱ The reset button ( B ) on the STB must be free to move.
Connection suitable for fixed wiring. Cable entry without fixed strain relief.
Type X attachment (without any special tools).
Single thermostat
TW, STW (STB) with
changeover contact
1
2
4
( A )
STB with break contact
and lockout
4 Installation
2
cable cross-section.
.
( B )
1
2
19