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4.2.3 Power unit terminal strips X1A, X1b
The terminal strips meet the requirements of
EN 60947-7-1
.
Housing C/S
L12 L22 L32
PA — PB
X1A
X1b
Terminal
Function
Cross-section
Tightening torque
X1A L12, L22, L32
Connection of the mains
supply via mains choke
10...25 mm²
AWG 8-2
2 Nm
18 lb inch
X1B
PA, –
Connection +/– DC link
0.5...16 mm²
AWG 10-2
PA, PB
Connection for braking
resistor
PE
Connection for shielding/
earthing
Screw M5 for crimp con-
nector
Table 12: Power unit terminal strips housing C/S
PA corresponds to +PA, for housing C/S, + is not shown due to space reasons.
Housing G/W
X1A
X1b
L12 L22 L32
+PA —
Pb
Terminal
Function
Cross-section
Tightening torque
X1A L12, L22, L32
Connection of the mains
supply via mains choke
M10 stud for ring crimp
connector
max. width 30 mm
25 Nm
220 lb inch
X1B
+PA, –
Conn/– DC link
+PA, PB
Connection for braking
resistor
PE
Connection for shielding/
earthing
Table 13: Power unit terminal strips housing G/W
43
CONNECTION OF THE POWER UNIT
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