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Circuit-Breakers, Switch-Disconnectors up to 1600 A > Switch-disconnector
NS
Switch-disconnector
NS
Control of
high short-circuit capacities with
NS switch-disconnectors
The UL/CSA approved devices for world markets provide safety
for the switch independently of the upstream protective
devices. The self-protection of the device is guaranteed up
to maximum short-circuit currents of 100 kA at 480 V by
integrated short-circuit releases.
This
independence from the type of protective device in the
upstream panelboard or switchboard is particularly
interesting if the switch is used as a main switch for
machines.
All four frame
sizes of the American Molded Case Switches correspond to the
UL 489 and CSA-C22.2 No. 5-02. Similarly, the same devices
as CBI-X are compliant with the international
circuit-breaker standard IEC/EN 60 947-2, Annex L. As a
result they are devices for world markets.
The new
switches cover the complete performance range from 63 A to
1200 A.
(407 KB) |
Safe
Isolation of Main Circuits with Switch-Disconnectors N
or with Molded Case Switches NS |
|
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