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Universal Remote Control MX-880Z - SPECS SHEET Technické informace Strana 16

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Masterpact™ NT and NW Universal Power Circuit Breakers
Masterpact™ Circuit Breakers
16
05/2014
Table 8: Ratings for ANSI C37 Certified Masterpact NT Circuit Breakers
Frame Rating 800 A
Interrupting Rating Code N1
Interrupting Current (kAIR)
254 Vac 60 Hz
508 Vac 60 Hz
635 Vac 60 Hz
42
42
N/A
Short-Time Withstand Current (kA) ac 60 Hz, 0.5 s 42
Built-In Instantaneous Override
(Peak kA ±10%)
—
Close and Latch Ratings (Peak kA) ac 60 Hz 90
Tested to show arc flash hazard risk category as referenced by NFPA70E —
Breaking Time
25 to 30 ms (with no
intentional time delay)
Closing Time < 50 ms
Sensor Rating 100 to 250 A / 400 to 800 A
Endurance Rating (C/O Cycles)
(with no maintenance)
Mechanical 12,500
Electrical 2800
Table 9: Ratings for ANSI C37 Certified Masterpact NT Non-Automatic Switches
Frame Rating 800 A
Withstand Rating Code NA
Short-Time Withstand Current Rating (kA) Vac 50/60 Hz, 0.5 s 42
Breaking Capacity (with external protection relay) (kA) 254/508/635 Vac, 60 Hz 42/42/NA
Table 10: Ratings for UL 489 Listed Masterpact NT Circuit Breakers
Frame Rating 800 A 1200 A 1600 A
1
1
Fixed-mounted only. 1600 A UL489 drawout circuit breakers are not available.
Interrupting Rating Code N H L1 L LF N H L1 L LF N H L1 L
Interrupting Current (kAIR)
240 Vac, 60 Hz
480 Vac, 60 Hz
600 Vac, 60 Hz
50
50
35
65
50
50
100
65
N/A
200
100
N/A
200
100
N/A
50
50
35
65
50
50
100
65
N/A
200
100
N/A
200
100
N/A
50
50
35
65
50
50
100
65
N/A
200
100
N/A
Short-Time Withstand Current Rating
(kA)
Vac 60 Hz, 0.5 s35 3510 1010 353510101035351010
Built-In Instantaneous Override
(Peak kA ±10%)
90 90 22 22 22 90 90 22 22 22 90 90 22 22
Close and Latch Ratings (Peak kA) Vac 60 Hz 55 55 22 22 22 55 55 22 22 22 55 55 22 22
Tested to show arc flash hazard risk category
as referenced by NFPA70E
— — — — Yes————Yes————
Breaking Time
25 to 30 ms (with no intentional time delay)
9 ms for L and LF
Closing Time < 50 ms
Sensor Rating 100–250 A / 400–800 A 600–1200 A 800–1600 A
Endurance Rating (C/O Cycles)
(with no maintenance)
Mechanical 12,500
Electrical 2800
Table 11: Ratings for UL 489 Listed Masterpact NT Automatic Switches
Frame Rating 800 A 1200 A 1600 A
Withstand Rating Code HF HB HF HB HF HB
Withstand Rating
1
(kA) Vac, 50/60 Hz
1
The withstand rating is the fault current (at rated voltage) that the switch will withstand without damage when protected by a circuit breaker with an equal continuous
current rating.
240
480
600
65
50
50
200
100
NA
65
50
50
200
100
NA
65
50
50
200
100
NA
Instantaneous Override (Peak kA) 90 22 90 22 90 22
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