451 series
Solid state contactor
Nominal voltage
(V)
Supply
Voltage (V)
(Note 1)
Fan
Power supply
Code
Term.
120
110-115-120
115
11
8 - 10
100-130
19
8 - 10
100
85-115
41
8 - 10
240
220-230-240
200-260
36
8 - 9
200-260
43
8 - 9
200
170-230
42
8 -1 0
277
277
240-320
46
8 - 1 0
440
380-400-415
350-450
43
8 - 10
440
380-500
47
8 - 10
500
480-500
425-575
44
8 - 10
660
550-600-660
(Note 2)
3.4.2 P o w e r s u p p l y
The supply voltage is used to power the fan
(453
and
454
module) and the partial load failure
detection circuit (optional).
In the case of the "Partial load failure"
option,
terminal 8 must be connected to the neutral or
to the second phase, directly connected to the load (see figure 3.1 and chapter 5).
Ventilated units (Isom 1 0 0 A) :
Connect the fan according to the following table.
Table 3.2
Note 1.
Phase-Neutral voltage (single-phase configuration between phase
and neutral or three-phase configuration with neutral) or
Phase-Phase voltage (single-phase configuration between phases
three-phase in 2 phase control or in open delta).
Note 2.
U s e an external lowering transformer (secondary voltage 230 V) to
power the fans with 230 V (terminals 8 and 9) and a fan code 36, 42 to
44, 46, 47.
In the case of a three-phase configuration without neutral with PLF,
use 3 transformers, with terminal 8 of the PLF circuit connected to a
phase.
451-461 User Manual
3-7
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