Universal Remote Control MX-880Z - SPECS SHEET Technical Information PDF herunterladen (Seite 158)

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Masterpact™ NT and NW Universal Power Circuit Breakers

Selection

158

05/2014

T-Frame Switch Selection

Table 67: ANSI C37 Certified/UL 1066 Listed, Non-Automatic T-Frame Switch

Frame Rating

Model

Number

Interrupting Rating

When used in conjunction with an overcurrent relay, circuit breaker, or fuse.

Short-Time (0.5 s) Rating

254 V 508 V 635 V

800 A

NT08NA 42 kA 42 kA NA 42 kA

NT08HA 42 kA 42 kA 22 kA 42 kA

Table 68: UL 489 Listed, Automatic T-Frame Switches

Frame Rating

Model

Number

Withstand Rating

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.

Instantaneous Override

240 V 480 V 600 V

800 A

NT08HF 65 kA 50 kA 50 kA 40 kA

NT08HB

Not available in 4P circuit breakers.

200 kA 100 kA N/A 10 kA

1200 A

NT12HF 65 kA 50 kA 50 kA 40 kA

NT12HB

200 kA 100 kA N/A 10 kA

1600 A

Fixed-mount only. 1600A UL489 drawout switches are not available.

NT16HF 65 kA 50 kA 50 kA 40 kA

NT16HB

200 kA 100 kA N/A 10 kA

Table 69: IEC 60947-3 Rated, Non-Automatic T-Frame Switches

Frame Rating

Model

Number

Interrupting Rating

When used in conjunction with an overcurrent relay, circuit breaker, or fuse.

Short-Time (0.5 s) Rating

240 V 440 V 690 V 1000 V

800 A NT08HA 42 kA 42 kA 42 kA — 42 kA

1000 A NT10HA 42 kA 42 kA 42 kA — 42 kA

1250 A NT12HA 42 kA 42 kA 42 kA — 42 kA

1600 A NT16HA 42 kA 42 kA 42 kA — 42 kA

1 2 ... 153 154 155 156 157 158 159 160 161 162 163 ... 179 180

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