GE Industrial Solutions EntelliGuard G Ready To Close User Manual

Introduction
Ready To Close (RTC):

Ready to close switch indicates the breaker
readiness status. It indicates when the following
conditions are met.

- The circuit breaker is open

- The closing springs are charged

- The circuit breaker in not locked/

interlocked in open position

- There is no standing closing order

- There is no standing opening order

The indication can be known either through the
trip unit or remotely. RTC thru trip unit is signal
rated contact. RTC thru secondary disconnect
can be power rated or signal rated. When RTC
signal is used thru the secondary disconnect, it
replaces the spring charge status contact.

DEH-41419 Installation Instructions

EntelliGuard ® G Circuit Breaker
Accessories

Ready To Close (RTC)

WARNING: Before installing any accessories, turn the
breaker OFF, disconnect it from all voltage sources,
and discharge the closing spings.

AVERTISSEMENT: Avant d’installer tout accessoire,
mettre le disjoncteur en position OFF, le déconnecter
de toute tension d’alimentation , et décharger les
resorts d’armement

RTC TO SD, Power Rated Contact:
Cat No

AC Ratings

125Vac 6A

250Vac 6A

GRTC1

RTC TO Trip Unit, Signal rated Contact

Cat No

Table 1.Catalog Numbers and Ratings:

RTC TO SD, Signal rated Contact:

Cat No

AC Ratings 125Vac 0.1A

DC Ratings 30Vdc 0.1A

GRTC2

AC Ratings 125Vac 0.1A

DC Ratings 30Vdc 0.1A

GRTC3

Use the following procedure to install the Ready
To Close (RTC) accessory into the circuit breaker.

1. Verify that the rating on the Ready To Close
(RTC) identification plate matches the voltage
rating required for the application, as listed in
Table 1.

2. Turn the breaker off and discharge the closing
springs by depressing the OFF and ON buttons in
the sequence OFF-ON-OFF. Verify that the
breaker OFF-ON indicator shows OFF on a green
background and that the charge indicator shows

1

DISCHARGE on a white background. If installing
in a draw-out type breaker remove breaker from
adaptor (cassette) before continuing.

3. Loosen the 6 screws on front cover (fascia)
using a posidrive screw driver as shown in Fig 1.B
Rotate the charging handle down and slide the
front cover over the handle to remove the front
cover as shown in Fig. 1.C.

Figure 3. Screw assembly

6. When RTC thru trip unit is used, plug the
connector from the RTC switch assembly to the
connector marked as RTC from the harness of the
trip unit as shown in Fig. 4.

Figure 1. (A) Front Cover (B) Screw Removal (C) Handle
Rotation

4. Slide the RTC switch assembly over the
mechanism side sheet and locate in the two
locating holes as shown in fig 2.

Figure 4. Connector Plug Assembly

7. If RTC is used thru the secondary disconnect,
then first unplug the spring charge contact
connector from motor as shown in Fig. 5

Figure 2. Assembly on mechanism

5. Assemble the screw with washer as shown in
Fig. 3 Tighten the screw to torque 1.2Nm (0.9 ft­lbs).

Figure 5. Unplug Spring Contact

7. Plug the connector from the RTC switch
assembly with the plug marked as RTC as shown
in fig 6.

2