Replacement parts, Manufactured by, See replacement parts sections – Precision Control Systems 3629C User Manual
Page 26
MODEL 3629C
22
04/10/2007
REPLACEMENT PARTS
FUSES
The model 3629C does not have built-in line fuses. It is recommended that the load and controller be protected by using a
class "T" or Semiconductor fuse in each of the three line leads. Bussmann type "JJN" (300 Volts) or "JJS" (600 Volts) are
suitable for up to 600 Amp frames. On frame sizes larger than 600 Amps, a semiconductor type fuse is recommended.
Choose a fuse having a current rating of approximately 120% - 125% of the maximum load current anticipated.
Control Concepts, Inc. stocks a variety of class "T" and semiconductor fuses, as well as fuse blocks and holders, for your
convenience. Consult Control Concepts factory for help to determine the best type and size to protect your application.
Three Bussmann Class CC type FNQ-R time delay fuses are used for transformer and control circuit protection. On
the 120 and 160 Amp units, the transformer protection fuses are accessible from the outside opposite the line and load
connections. On all other units, the fuses are located inside. The orientation of these class CC fuses is important.
Although the fuse may be inserted either way, it will only make contact if oriented in the fuseblock correctly.
REFERENCE DRAWINGS
Firing circuit schematic.
D1001160B
Frame wiring diagram, 50 & 80A.
CS1569A
Frame wiring diagram, 120A.
CS1574A
Frame wiring diagram, 160A.
CS1570A
Frame wiring diagram, 200-425A.
CS1571C
Frame wiring diagram, 500-1000A.
CS1575C
REPLACEMENT SCR’s
Size of controller in Amps (A)
Control Concepts Sub Assembly
50 & 80
SCR/TT91-14
120
SCR/TT105-14
160
SCR/TT132-14
200
SCR/T240-14*
250
SCR/T340-14*
300
SCR/T490-14*
380
SCR/T600-14*
425
SCR/T760-14*
500
SCR/T600-14*
600
SCR/T760-14*
750
SCR/Z1400-14*
1000
SCR/Z1800-14*
* Because of critical assembly requirements, it is recommended that replacement of
SCRs on 200 Amp and larger controllers be done at the factory. If you desire to try
it yourself, request a copy of our technical bulletin concerning replacement of SCR's
on the 3629 controller.
MANUFACTURED BY