I.B. 2C12060H08
For more information visit: www.EatonElectrical.com
Instruction Book
Effective: May 2006
Page 54
Table 3.8 MDSL Integral Current Limiter Selection (for Optimal Performance and Highest Fault Levels)
MDSL08
MDSL08
MDSL08
MDSL08
MDSL08
MDSL08
MDSL12
MDSL12
MDSL12
MDSL12
MDSL12
MDSL12
MDSL12
MDSL12
MDSL20
MDSL20
➅
Magnum DSL Breaker
Continuous Current Frame Rating
(Amperes)
①
800 1200 1600 2000
Sensor
&
Rating
Plug (I
n
)
200
250
300
400
600
800
1000
1200
1600
2000
➅
Available MDSL Current Limiters ➁
MA250
MA400
MA400
MA600
MA800
MB1200
MB1600
MB2000
MD3000
MD3000
➅
MB2000
➄
MA300
MA600
MA600
MA800
MB1200
MB1600
MB2000
MA400
MB1200
MB1200
MB1600
MB1600
MB2000
MA800
MB1600
MB1600
MB2000
MD2500
MB1200
MB2000
MB2000
MD2500
MB1600
MD2500
MD2500
MDSL16
MDSL16
MDSL16
MDSL16
MDSL16
MDSL16
MDSL16
MDSL16
MDSL16
① Select the Magnum breaker frame, then the current sensor and rating plug, and
finally the current limiter. Current limiters are mounted integral to the circuit breaker. Refer non-automatic MDSL breaker application requests to Eaton/Cutler-Hammer
➁ Refer to MDSL current limiter curves for let-through and time characteristics.
➂ The minimum selection provides for the lowest current let-through, but trip unit settings must be considered to avoid nuisance operation.
➃ The recommended selection avoids nuisance limiter operation and allows for system coordination within the trip unit settings while minimizing let-through.
➄ The maximum selection provides for maximum system coordination with let-through characteristics per the limiter selected.
➅ Heat sinks applied in conjunction with current limiters on this breaker rating.
Minimum
Size
➂
Recommended
Size ➃
Maximum
Size
➄
MA600
MA800
MA800
MB1200
MB2000
MD2500
MD2500
MD2500
MD3000
MD3000
➅
MD3000
MD3000
MD3000
MD3000
MD3000
MD3000
MD3000
MD3000
MD3000
MD3000
➅
Other Available Sizes
(in addition to minimum, recommended and maximum sizes)
MD2500
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