Nidec Digistart D3 User Manual

Digistart D3: User Guide 7
Issue: G
2 Rating Data
2.1 Model Code
D3 –
1
4
–
0
2
5
5
–
N
–
C
1
Control voltage
C1 = 110~210 VAC or 220~440 VAC
C2 = 24 VAC/VDC
Bypass
B = internally bypassed
N = non-bypassed
Nominal current rating
Mains voltage
14 = 200~440 VAC (± 10%)
16 = 380 ~ 600 VAC (± 10%)
or 380 ~ 690 VAC (± 10%) - grounded star supply
system only
CAUTION
Digistart D3 can only be used on 690V IT supply equipped with surge protectors. Please contact Nidec or
your local distributor.
2.2 Current Ratings
Contact your local supplier for ratings under operating conditions not covered by these ratings charts.
2.2.1 Current Ratings for Bypass Operation
AC53b Utilisation Code
The AC53b utilisation code defines the current rating and standard operating conditions for a bypassed soft starter
(internally bypassed, or installed with an external bypass contactor).
The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's rating
depends on the number of starts per hour and the length and current level of the start.
The soft starter’s current rating is only valid when used within the conditions specified in the utilisation code. The soft
starter may have a higher or lower current rating in different operating conditions.
80 A
:
AC-53b
3.5
-
15
:
345
Off time (seconds)
Start time (seconds)
Start current (multiple of motor full load current)
Starter current rating (amperes)
Starter current rating: The full load current rating of the soft starter given the parameters detailed in the remaining
sections of the utilisation code.
Start current: The maximum available start current.
Start time: The maximum allowable start time.
Off time: The minimum allowable time between the end of one start and the beginning of the next start.

Nidec Digistart D3 Specifications

General

Brand	Nidec
Model	Digistart D3
Category	Controller
Language	English