connection
energy management
CDS load-shedding contactor
function
CDS
When consumption exceeds the selected
threshold, the load-shedding contactor
temporarily stops supply to non-essential
circuits.
description
technical data common to the CDS
c ratings:
v essential circuit: 90 A
v non-essential circuits:
- 15 A contact relay (100 000 operations) for
resistive loads without current inrush on
energisation
- in all other cases, relaying by CT contactor
is required
c frequency: 50…60 Hz
c load-shedding indication by yellow LEDs
c power consumption: 12 VA
c connection by tunnel terminals (captive
screws):
v essential circuit: 4 to 50 mm2
v non-essential circuits: 2.5 to 10 mm2
c fixing on symmetrical rail or panel
c control of currents greater than 90 A:
v utilisation of an In/5 current transformer
v threshold setting: 5 A
c utilisation temperature: -5...+55 °C
c complies with standards:
v NFC 61.750
v EN 500 81.1
v EN 500 81.2
The CDS:
c increases the number of loads without
changing output power,
c reduces output power,
c prevents nuisance tripping of the upstream
circuit-breaker.
specific technical data
CDS
c single-phase version:
v load-shedding and restoration in
cascading configuration of 2 non-essential
circuits by 2 relays with time-delayed action
v load-shedding time:
- load shedding of circuit 1 only:
• restoration after 5 min
- load shedding of circuit 1 and circuit 2:
• restoration of circuit 2: after 10 min
• restoration of circuit 1: 5 min after circuit 2
c three-phase version:
v separate load-shedding for each phase
v 1 relay per phase
v load-shedding time: 5 min for each
channel
c load-shedding override input
c 1 A - 250 V NO contact for remote
indication
CDSc
c load-shedding and restoration in
cascading configuration, then in turn by
rotation of 1 to 4 non-essential circuits
c load-shedding override input
c cyclic load-shedding: changing the order
every 5 min
CDSt
c specially adapted for peak period tariff
reduction systems
c load shedding and restoration in
cascading configuration of 2 non-essential
circuits
c 2 load-shedding thresholds according to
the tariff period
c "ON" override by pushbutton
c indication of tariff condition status
catalogue numbers
type
threshold
(A)
supply
voltage
(V AC)
catalogue
number
width
in mod.
of 9 mm
230
15908
10
CDS
1P
5/10/15/20/25/30
40/45/50/60/75/90
aux 1
L1
aux 2
1
7
15908
92053/2
2
3
8
4
5
6
9 10 11 12
N
Merlin Gerin
connection
energy management
CDS load-shedding contactor
catalogue numbers
type
threshold
(A)
supply
voltage
(V AC)
catalogue
number
width
in mod.
of 9 mm
230
15913
16
15906
16
15912
16
CDS (continued)
3P
5/10/15/20/25/30
40/50/60/70/80/90
aux 1
aux 2
L2
L3
L1
1
15913
2
9
3
4
5
6
7
8
10
11
12
13
14
15
aux 3
16
N
CDSc
1P
5/10/15/20/25/30
40/45/50/60/75/90
230
L
1
2
3
4
IS
9
10
5
6
7
8
12
13
14
15
I
I
III
IV
IS
11
N
essential
16
non-essential
CDSt
1P
5/10/15/20/25/30
40/45/50/60/75/90
230
EJP
PCA
2
2
L
2
4
5
6
7
8
11
12
13
14
15 16
IS
15912
9
N
10
essential
I
II
non-essential
additional
information
Merlin Gerin
dimensions: page 90148/2
92053/3