DET-653C EntelliGuard
®
G Circuit Breaker Application Guide
24-May-12 Section 4. Accessories
©2012 General Electric All Rights Reserved
Time Delay Module (TDM) for UVR (Externally Mounted)
The de-energized operation of the Undervoltage release can
be delayed. This optional, externally mounted module has an
adjustable time delay of 0 sec to 3 sec. The device can be
implemented to prevent undesired breaker tripping due to
momentary voltage interruptions and is connected in series
with the Undervoltage release. The time delay is in addition to
the time delay from the breaker mounted UVR accessory. The
time delay module starts counting at 50% of rated voltage
(Fig. 4.2 and Table 4.6).
Figure 4.2. Time Delay Module
Table 4.6 TDM Characteristics
Remote Operation Coil Combination
Each breaker accepts a maximum of four coils in the
combinations shown in Table 4.7. The four positions can be
filled by the following four devices: one Close Coil, one Shunt,
one UVR, and the final fourth position can either be a Shunt
Trip or a UVR. All coils are mounted from the front and snap
onto the mechanism after the fascia is removed.
All Coils are
Conformal Coated for increased reliability in humid/damp
environments.
Table 4.7. Remote Operation Coil Combination
Coil Position on Fascia (from left)
These contacts, as shown in Table 4.8, indicate that the
following conditions are met and the circuit breaker can be
closed:
• 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 signal.
• There is no standing opening signal.
Table 4.8. Ready To Close Contacts (1 NO)
AC
120Vac 6A
high fidelity/secondary
disconnect
GRTC2R
250Vac 6A - GRTC2R
DC
125Vdc 0.5A
power rated/secondary
disconnect
GRTC1R
250Vdc 0.25A high fidelity/trip unit GRTC3R
Auxiliary switches indicate breaker main contact position.
They change their state in the same time sequence as the
breaker main contacts. See Tables 4.9 and 4.10 for available
combinations and ratings, and Tables 4.11 through 4.14 for
contact information.
Table 4.9. Auxiliary Switches
Power rated (3NO+3NC) + low signal (Hi-Fi)
GAUX5R
Power rated (4NO+4NC) + low signal (Hi-Fi)
GAUX8R
Table 4.10. Auxiliary Switch Ratings and Secondary
Disconnect Points
A14 - A25 N/A GAUX3R
Power rated (3NO+3NC) +
low signal (Hi-Fi)
(2NO+2NC)
A14 - A25
B10 - B13,
B23 - B26
GAUX5R
Power rated
(8NO+8NC)*
B4 - B13,
N/A GAUX6R
low signal (Hi-Fi)
B12 - B13,
B4 - B11,
B17 - B24
GAUX8R
*Options are not available for side mounted sec disc blocks.
• High Fidelity refers to gold-plated contacts. Use for signal level outputs
(10mA min to 100mA max., 8Vdc to 30Vdc, 125Vac.
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