Cut Sheet

V4-T3-10 Volume 4—Circuit Protection CA08100005E—May 2015 www.eaton.com
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3.1
Power Breakers, Contactors and Fuses
Power Circuit Breakers
Technical Data and Specifications
Magnum DS Switchgear Class UL 1066 Low Voltage Power Circuit Breakers
Notes
1
Interrupting ratings shown based on breaker equipped with integral Digitrip RMS trip unit. Interruption ratings for non-automatic breakers are equal to the published short-time withstand rating.
These interruption ratings are based on the standard duty cycle consisting of an open operation, a 15-second interval and a close-open operation, in succession, with delayed tripping in case of
short-delay devices. The standard duty cycle for short-time ratings consists of maintaining the rated current for two periods of 1/2 seconds each, with a 15-second interval of zero current between
the two periods.
2
Magnum MDSL current limiting power circuit breaker with integral current limiters. Current Limiter selected determines short-time and fixed instantaneous trip rating. Maximum voltage rating
is 600 Vac.
3
Magnum MDSX current limiting power circuit breaker with fast opening contacts.
Breaker Type
Catalog
Position 1–6
rms Symmetrical Current Ratings kA 50/60 Hz
1
Available Current Sensor and
Rating Plugs for Digitrip RMS Trip Unit
(Establishes Breaker I
n
Rating)
Frame
Amperes
Frame
Type
Interruption
Rating
at 254 Vac
Interruption
Rating
at 508 Vac
Interruption
Rating
at 635 Vac
Short-Time
Withstand Rating
Fixed Internal
Instantaneous Trip
800 MDN-408 Narrow 42 42 42 42 — 200, 250, 300, 400, 600, 800
MDN-508 Narrow 50 50 50 50 —
MDN-608 Narrow 65 65 65 65 —
MDN-C08 Narrow 100 100 65 20 18 x I
n
MDS-408 Standard 42 42 42 42 —
MDS-508 Standard 50 50 50 50 —
MDS-608 Standard 65 65 65 65 —
MDS-808 Standard 85 85 85 85 —
MDS-C08 Standard 100 100 100 85 85
MDS-H08 Standard 130 130 130 85 85
MDS-L08
2
Standard 200 200 200 — —
MDS-X08
3
Standard 200 200 65 30 30
1200 MDN-412 Narrow 42 42 42 42 — 200, 250, 300, 400, 600, 800, 1000, 1200
MDN-512 Narrow 50 50 50 50 —
MDN-612 Narrow 65 65 65 65 —
MDN-C12 Narrow 100 100 65 25 18 x I
n
MDS-X12 Standard 200 200 65 30 30
MDS-512 Standard 50 50 50 50 —
MDS-612 Standard 65 65 65 65 —
MDS-812 Standard 85 85 85 85 —
MDS-C12 Standard 100 100 100 85 —
MDS-H12 Standard 130 130 130 85 85
1600 MDN-416 Narrow 42 42 42 42 — 200, 250, 300, 400, 600, 800, 1000,
1200, 1600
MDN-516 Narrow 50 50 50 50 —
MDN-616 Narrow 65 65 65 65 —
MDN-C16 Narrow 100 100 65 30 18 x I
n
MDS-516 Standard 50 50 50 50 —
MDS-616 Standard 65 65 65 65 —
MDS-816 Standard 85 85 85 85 —
MDS-C16 Standard 100 100 100 85 85
MDS-H16 Standard 130 130 130 85 85
MDS-L16
2
Standard 200 200 200 — —
MDS-X16
3
Standard 200 200 65 30 30
2000 MDN-620 Narrow 65 65 65 65 — 200, 250, 300, 400, 600, 800, 1000, 1200,
1600, 2000
MDN-C20 Narrow 100 100 65 35 18 x I
n
MDS-620 Standard 65 65 65 65 —
MDS-820 Standard 85 85 85 85 —
MDS-C20 Standard 100 100 100 85 85
MDS-H20 Standard 130 130 130 85 85
MDS-L20
2
Standard 200 200 200 — —
MDS-X20
3
Standard 200 200 65 30 30