Quick Links
Doc. N.° 2TSA451041P0000 rev A
DB BREAKER TO EMAX 2
2TSA451041P0000
Retrotting between DB BREAKER and Emax 2 circuit breakers with cradle-in-cradle
(CiC) adapter
This retrofitting kit is designed for replacing the DB air circuit breaker in DB switchgear. It allows a standard
Emax 2 withdrawable air circuit breaker of the size indicated in Table A and its cradle (fixed part) to be attached
to the original switchgear assembly and racked into the switchgear enclosure.
Table A
Full correspondence of the electrical characteristics is guaranteed (rated current excluding derating if indicated in
Table A, and breaking capacity) so long as the kit is chosen in accordance with the indications in the ABB technical
catalogues dedicated to retrofitting products. The kit has been designed also to preserve the insertion/extraction
operations functionality and the optional auxiliary (secondary) circuits of the obsolete circuit breaker. The (fixed part)
for the new circuit breaker is installed and then locked into the legacy DB switchgear, thus making use of the
of the Emax 2 plug-in features as established in the operation and maintenance manual of the new Emax 2
circuit breaker without having to modify any of the live parts of the switchgear.
ATTENTION !
The instructions concern the sole assembly of the retrofitting kit. They do not substitute for the instructions in the
installation, operation, and maintenance manual of the Emax 2 circuit breaker document number
1SDH001000R0002. If optional auxiliary (secondary) circuits are required, refer to section 11.
IMPORTANT !
Retrofitting allows an obsolete control and protection device to be replaced, but does not allow the ratings of the
original switchboard to be altered in any way.
The retrofitting kits are dimensioned and certified for the obsolete device performances which may be lower than the
new Emax 2 ratings. Consult ABB for further details.
Structure Details
The cradle for the new Emax circuit breaker is mounted to a steel structure that is then mounted into the
DB switchgear cell. The Emax CiC adapter is fitted with custom silver flashed copper run backs and finger
clusters that align to and mate with the existing DB switchgear power circuit stabs. The entire assembly mounts
on the original DB BREAKER L-Frame rails without additional phase barriers. The weight of the low voltage
CiC adapter without the breaker is as follows:
RATING
DB-25
600A
DB-50
1600A
Table B
CiC Model
DB-25
DB-50
EMAX 2
RATING
E-1.2
600A
E-2.2
1600A
Weight (lbs./kg)
1 Pos
3 Pos
75/34
90/41
90/41
120/55
Related Manuals for ABB DB BREAKER
Summary of Contents for ABB DB BREAKER
- Page 1 Full correspondence of the electrical characteristics is guaranteed (rated current excluding derating if indicated in Table A, and breaking capacity) so long as the kit is chosen in accordance with the indications in the ABB technical catalogues dedicated to retrofitting products. The kit has been designed also to preserve the insertion/extraction operations functionality and the optional auxiliary (secondary) circuits of the obsolete circuit breaker.
- Page 2 Ÿ Double check to ensure that the line has been placed out of service. NOTE: The trained personnel in charge of handling and lifting must use appropriate safety equipment. DB -25 DB BREAKER Tools Required: Drill bit (Ø.228″) Drill Machine...
- Page 3 INSTALLATION IN SWITCHGEAR Fig. 3 Ÿ Open the compartment door that is to be retrofitted. Ÿ Lift the pin out of hinge joints this allows removing of door from compartment. Ÿ Place the Extended cradle rails (a)(fig. 3) onto Switchgear rails until the side levers drop down to lock the switchgear rails WARNING: THE CiC ADAPTER COULD DROP DURING THIS OPERATION.
- Page 4 Fig. 6 Fig. 7 Ÿ Once the CiC adapter is fully pushed into the switchgear cell Manually, unlock the extension rails and remove them from cell (fig. 6). Ÿ Rack-in the CiC adapter into switchgear using DB rack-in/out leverage tool. (Legacy DB-Leverage tool) as shown in (fig.
- Page 5 Optional Auxiliary (Secondary) Circuits Notes: Ÿ The installed auxiliary circuits have been wired in accordance with the supplied wiring diagrams which are based on customer furnished information. Review the wiring diagrams for integration and compliance to the switchgear circuitry. Ÿ Prior to energizing the auxiliary circuits, verify that the secondary contacts are properly engaged by performing a continuity test on each installed circuit.
- Page 6 Ÿ Double check to ensure that the line has been placed out of service. NOTE: The trained personnel in charge of handling and lifting must use appropriate safety equipment. DB-50 DB BREAKER Tools Required: Allen Key (5mm) Remove the legacy OEM circuit breaker Fig.
- Page 7 Ÿ Place the Extended cradle rails Fig. 3 (a)(fig. 3) onto Switchgear rails until the side levers drop down to lock the switchgear rails WARNING: THE CiC ADAPTER COULD DROP DURING THIS OPERATION. ATTACH APPROPRIATELY SIZED AND RATED LIFTING DEVICES WHICH EXCEED THE RATINGS LISTING IN TABLE B ON PAGE 1 BEFORE PROCEEDING.
- Page 8 Ÿ Once the CiC adapter is fully pushed into the switchgear cell Manually, unlock the extension rails and remove them from cell. (fig. 6) Fig. 6 Fig. 7 Ÿ Rack-in the CiC adapter into switchgear using DB rack-in/out leverage tool. Fig.
- Page 9 MAKING THE SYSTEM SAFE FOR REMOVAL Fig. 9 The following warnings and precautions must be respected before removing the CiC adapter and circuit breaker from the switchgear. • Place the switchgear housing and the circuit breaker out of service. • Disconnect the power from the switchgear (power circuit and auxiliary circuits) and verify it is disconnected from all sources of energy.
- Page 10 Doc. N.° 2TSA450001P1011 LK8, LKE8, LKD8, LK16, LKE16 TO EMAX 2 For more information please contact your local ABB Field Representative or Service Center listed below: ABB Inc. 1555 Scott Street Senatobia, MS 38668 Phone: 1-662-562-0700 Copyright 2020 ABB. All rights reserved...