EKF
Isolator 250A 4P without control handle TwinBlock EKF tb-s-250-4p
SKU: tb-s-250-4p
ETIM: EC000216
9,812 ₽
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Analogues by specifications
TwinBlock series knife switches are designed for passing rated currents, switching on and off electrical circuits with a rated voltage of up to 690 V AC at frequencies of 50 and 60 Hz in electrical power distribution devices. TwinBlock series switch-disconnectors (models 40-800 A) have the possibility of connecting an additional fourth pole.
Design as auxiliary/maintenance switch
Yes
Version as main switch
Yes
Design as protective switch
No
Version as emergency switching-off device
Yes
Number of auxiliary NO contacts
0
Number of auxiliary break contacts
0
Number of poles
4
Design
Mounting in distribution board
Maximum rated operational voltage Ue AC
690 В
Motor drive optional
No
Rated voltage at
690 В
Rated voltage from
400...690 В
Rated short-time withstand current Icw
8 кА
Rated continuous current Iu
250 А
Suitable for base mounting
No
Suitable for intermediate mounting
Yes
Suitable for distribution board
Yes
Ingress protection (IP) of front side
IP20
Ingress protection (NEMA)
4
Product/component type
Load-break switch disconnector
Main electrical circuit connection type
Bolted connection
Control element type
Rotary button/knob
Conditional rated short-circuit current Iq
40.5 кА
Colour of control elements
Other
0
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