MCCB Automatic
Transfer Switches
Legrand can supply Automatic Transfer Switches (ATS) for
Moulded Case Circuit Breakers to suit your requirements.
DISCOVER THE RANGES
Available from 16 to 630A, Legrand Automatic Transfer switches accommodate DPX3 or DPX Moulded Case Circuit Breakers
(3 Pole versions). They consist of two circuit breakers (motor-operated and fitted with 230V AC/DC shunt release) on a
mechanical interlock plate, one control panel and one controller. Common loadside busbar can be ordered as an option.
Automatic transfer switches are factory-assembled, pre-wired and tested by Legrand.
They are to be ordered as one catalogue no. see opposite page.
umain: present
usec: absent
Q1: closed
Q2: open
Q1: closed
Temporisation S1: 0,5 to 120s
umain: absent
Q2: open
Temporisation SC: 0,1 to 10s
Automatic Transfer Switches
(ATS) enable an automatic
changeover from the main
source of supply to a standby
power supply in the event of
power failure.
yes
umain: present?
umain: absent?
no
no
Applications:
Hospitals
yes
Temporisation SC1: 3 to 120s
Q1: open
Airports
Tunnels / infrastructures
Back to normal
umain: present
Temporisation S: 0,5 to 120s
Data centres
Manufacturing plants
no
usec present?
yes
Q2: closed
umain : absent
usec : present
Q1: open
Q2: closed
Example of algorithm for the functioning of an automatic transfer switch
Key benefits:
Automatic Transfer Switches are designed and developed by our R&D team.
They are assembled and tested in our factory to guarantee the Legrand reknown quality.
Pre-wired and fitted with connectors (plug-in type), they will enable quick installation and ensure
a professional work for end-users.
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Automatic transfer switches
DPX3 / DPX MCCBs
How to order
1 Basic transfer Switch
1 Control Panel
Mechanical interlock between
two MCCBs (BTS)
Prewired and mounted
on metal plate
1
2
1 Controller
3
Catalogue No.
ATS 160 3P 25kA 25 = 1+2+3
MCCB
frame
size
MCCB
kA rating
3 pole
Pack
1
1
1
1
1
1
1
Cat. No.
ATS for DPX3 160 3P TM MCCBs
with DPX3 160 25 kA breaking capacity
ATS1603P25kA25 ATS for DPX3 160 3P/3P 25 kA 25A
ATS1603P25kA40 ATS for DPX3 160 3P/3P 25 kA 40A
ATS1603P25kA63 ATS for DPX3 160 3P/3P 25 kA 63A
ATS1603P25kA80 ATS for DPX3 160 3P/3P 25 kA 80A
ATS1603P25kA100 ATS for DPX3 160 3P/3P 25 kA 100A
ATS1603P25kA125 ATS for DPX3 160 3P/3P 25 kA 125A
ATS1603P25kA160 ATS for DPX3 160 3P/3P 25 kA 160A
with DPX3 160 36 kA breaking capacity
1
1
1
1
1
ATS1603P36kA63
ATS1603P36kA80
ATS1603P36kA100
ATS1603P36kA125
ATS1603P36kA160
ATS
ATS
ATS
ATS
ATS
for
for
for
for
for
DPX3
DPX3
DPX3
DPX3
DPX3
160
160
160
160
160
3P/3P
3P/3P
3P/3P
3P/3P
3P/3P
36
36
36
36
36
kA
kA
kA
kA
kA
63A
80A
100A
125A
160A
with DPX3 160 50 kA breaking capacity
1
1
1
1
1
ATS1603P50kA63
ATS1603P50kA80
ATS1603P50kA100
ATS1603P50kA125
ATS1603P50kA160
ATS
ATS
ATS
ATS
ATS
for
for
for
for
for
DPX3
DPX3
DPX3
DPX3
DPX3
160
160
160
160
160
3P/3P
3P/3P
3P/3P
3P/3P
3P/3P
50
50
50
50
50
kA
kA
kA
kA
kA
63A
80A
100A
125A
160A
MCCB
nominal
current
Pack
Cat. No.
1
1
1
1
ATS2503P36kA100
ATS2503P36kA160
ATS2503P36kA200
ATS2503P36kA250
1
1
1
1
ATS2503P50kA100
ATS2503P50kA160
ATS2503P50kA200
ATS2503P50kA250
1
1
1
1
ATS2503P70kA100
ATS2503P70kA160
ATS2503P70kA200
ATS2503P70kA250
with DPX3 250 36 kA breaking capacity
ATS for DPX3 250 3P/3P 36 kA 100A
ATS for DPX3 250 3P/3P 36 kA 160A
ATS for DPX3 250 3P/3P 36 kA 200A
ATS for DPX3 250 3P/3P 36 kA 250A
with DPX3 250 50 kA breaking capacity
ATS for DPX3 250 3P/3P 50 kA 100A
ATS for DPX3 250 3P/3P 50 kA 160A
ATS for DPX3 250 3P/3P 50 kA 200A
ATS for DPX3 250 3P/3P 50 kA 250A
with DPX3 250 70 kA breaking capacity
ATS for DPX3 250 3P/3P 70 kA 100A
ATS for DPX3 250 3P/3P 70 kA 160A
ATS for DPX3 250 3P/3P 70 kA 200A
ATS for DPX3 250 3P/3P 70 kA 250A
ATS for DPX 630 3P MCCBs
1
1
1
1
1
1
TM = Thermal Magnetic
Note: 1. MCCBs fitted with 230V AC/DC Shunt release
2. Control Panel supplied with wire looms for quick plug-in connections with controller & BTS
3. Common loadside busbar available on request
ATS for DPX3 250 3P TM MCCBs
1
1
with DPX 630 36 kA breaking capacity (TM)
ATS6303P36kA400 ATS for DPX630 3P/3P 36 kA 400A
ATS6303P36kA630 ATS for DPX630 3P/3P 36 kA 630A
with DPX 630 70 kA breaking capacity (TM)
ATS6303P70kA400 ATS for DPX630 3P/3P 70 kA 400A
ATS6303P70kA630 ATS for DPX630 3P/3P 70 kA 630A
with DPX 630 Electronic 36 kA breaking capacity
ATS6303P36K400E ATS for DPX630 3P/3P 36 kA 400A Electronic
ATS6303P36K630E ATS for DPX630 3P/3P 36 kA 630A Electronic
with DPX 630 Electronic 70 kA breaking capacity
ATS6303P70K400E ATS for DPX630 3P/3P 70 kA 400A Electronic
ATS6303P70K630E ATS for DPX630 3P/3P 70 kA 630A Electronic
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