
SM32 • Instruction manual
29
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Terminals
Function
Voltage, Current
70, 72
OK Relay
(max 250V, 1A – AC11)
81, 82
Blown fuse. On SM32-480-1050, 1500 and 2000A sizes only.
Figure 2.4.1: Terminals location
185 ... 650 A sizes
1050 ... 1500 A sizes
A) = control terminals ; B) = power terminals
C) = power terminals (U3, V3) and control terminals (81, 82)
2.5. Protections
2.5.1. Internal Protection Components
Converter
Designation
Varistors
SM32-480-185...2000
V1, V2, V3
575 V / 220 J Ø 20 mm
2.5.2. Internal Fuses
Converter
Designation
Fuses
SM32-480-185
F11, F21, F31
16A, 500V
fast, 6 x 32 mm
SM32-480-280
SM32-480-420
SM32-480-650
SM32-480-1050
25A, 500V
fast, 6 x 32 mm
SM32-480-1500
SM32-480-2000
Converter
Designation
Fuses for
Fuses
SM32-480-185
F 4
Power supply
protection
4A, 500V
f a s t
6 x 32 mm
SM32-480-280
SM32-480-420
SM32-480-650
F 5
+24V
protection
1A, 250V
slow
5 x 20 mm
SM32-480-1050
SM32-480-1500
SM32-480-2000
Converter
Designation
Fuses for
Fuses
SM32-480-1500
F10
Cooling fan
protection
6.3 x 32mm,
500V, 1.6A slow
SM32-480-2000