Eaton Magnum SB Series Technical Product Manual page 24

Magnum DS - Product specific information
Trip curve charts
Type Magnum DSL limiters, peak let-through current
characteristics
3
100
90
80
70
1
60
50
40
1 30
20
1
10
9
8
1 7
6
5
4
1
3
2
1
1
.9
.8
1
.7
.6
.5
.4
1
.3
.2
1
.1
.09
1
.08
.07
.06
.05
1
.04
.03
1 .02
1
Available current, rms symmetrical amperes x 10
1
1
1
MDSX circuit breaker
The Magnum MDSX is a current limiting circuit breaker of the
1
Magnum DS Family . It has a 200 kA interrupting rating without
the need for current limiters at 480 Vac with continuous current
1
ratings up to 5000A . MDSX circuit breakers utilize fast opening
contacts, and are available in both drawout and fixed mounting
1
configurations .
Current limiting performance of the MDSX family of current
1
limiting circuit breakers is shown in above . The label on the
breaker indicates its current-limiting characteristics . The MDSX
1 provides all the same operational features normally associated
with Magnum DS .
1
Non-automatic breaker (switch)
1
The non-automatic Magnum DS breaker (switch) shares the
same frame and accessories as the circuit breaker . It does not,
however, have the following:
1
Trip Unit
•
1
Sensors
•
Overcurrent Release
•
1
The switch is available in both three-pole and four-pole fixed and
drawout configurations .
1
24
MaGnuM PRoDuct GuiDe CA013002EN—April 2017
Courtesy of NationalSwitchgear.com
Type Magnum DSL limiters average melting time-current
characteristics
1000
900
800
700
600
500
400
300
200
MD3000
MD2500
MD2000
60
MD1600
50
MD1200
40
MA800
30
MA600
20
MA400
MA300
10
MA250
9
8
7
6
5
4
3
2
1
.9
.8
.7
.6
.5
.4
.3
.2
.1
.09
.08
.07
.06
.05
.04
.03
.02
.01
For time/current curves, see
N otee:
A non-automatic power circuit breaker includes separable
contacts for movement between a closed position and an open
position, and an operating mechanism for moving the separable
contacts between the two positions . This breaker can be applied
where a local means of disconnect or isolation is required . It can
be operated either manually or electrically . It should be noted,
since the Magnum Non-Automatic Breaker (switch) does not
include any overcurrent protection, it cannot be used in branch or
feeder circuit protection applications .
MDE circuit breaker
The Magnum DS Family includes the MDE High Endurance
Circuit Breaker . The MDE circuit breaker is rated for 15,000
Open-Close operating cycles between scheduled maintenance
periods . It is a specially designed and manufactured Magnum DS
Circuit Breaker intended for especially robust applications that
require a higher than normal number of operating cycles without
maintenance . Contact Eaton for additional details .
Special customer requests
The 25th digit in the catalog number configurator now offers
several special customer designs, for very specific environments
or applications . Please click
www .eaton .com
www.eaton.com
MA250
MA300
MA400
MA500
MA800
MB1200
MB1600
MB2000
MB2500
MB3000
Scale x 100 = Current in amperes
www .eaton .com/tcc
here or search 'Volume 4 Tab 3' on