ABB CR324GXNS User Manual

3. Remove and save the overload relay mounting
4. Remove the overload relay from the starter
WARNING: Disconnect all power from the starter and
overload relay before installing,
servicing.
AVERTISSEMENT:
installation, modific- a tion, ou entretien.
CAUTION: Before installing this product in a nuclear
application, determine if it is intended for such use.
ATTENTION: Avant d'installer le produit dans une
application nucleaire, verifier si cela est permis.
The ABB Solid State Overload Relay is shown in
Figure I. The catalog
specifications are listed in Table 1.
The following instructions describe the installation of
a Solid State Overload Relay as a replacement for an
existing overload relay on a 300-Line starter.
1. Disconnect all sources of power to the starter.
2. Disconnect all control and power wiring from
the load side of the existing overload relay.
screw, located at the bottom right and upper left
corners of the overload relay housing.
baseplate.
Reassemble the Solid State 9verload Relay from
this kit in the reverse order.
CR324GXNS
CR324GXPS
CR324GXQS
CR324HXSS
CR324HXTS
GEH-6432 User's Guide
Solid State Overload Relay
NEMA Sizes 5 & 6
Introduction
Replacement Installation
5.
Catalog Number:
Replacement
Starter Mount
NOTE: Maximum fuse and breaker sizes are intended as guidelines. Refer to NEC and local codes for proper fuse and
breaker selection.
Table 1. Solid State Overload Relay, NEMA Sizes 5
modifying,
Couper l'alimentation
numbers and electrical
5 32-68
5 65-135
5 130-270
6 130-270
6 260-540
Current
NEMA Range,
Size amps
6. Check to see that the two wires from each
8. Connect the control and power wiring to the
or
avant
current transformer have been reconnected to
the top and bottom terminals on the same pole
of the Solid State Overload Relay as on the
overload relay that was replaced.
7. Torque the bottom terminal screws to 20 lb -in
and the top terminal screws to 12 lb-in.
terminals on the load side of the Solid State
Overload Relay, shown in Figure 2.
Reconnect power sources to the starter.
10. Fully depress the blue reset button on the Solid
State Overload Relay to insure that it is in the
reset position. The yellow trip flag will be at its
right position, as illustrated in Figure 2.
250
500
800
800
1600
Figure 1. Solid State Overload Relay (external current transformers
9.
Max Fuse Size, Max Breaker
amps (Class
T ,H,J ,L,R,K)
&
6, catalog numbers and electrical specifications.
ABB
250 CR306G
400 CR306G
800 CR306G
800 CR306HH
1600 CR306HH
not shown).
Use with
Rating,
amps Contactor