NHP TemBreak PRO P, Руководство пользователя

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Installation
18
TemBreak PRO
P_BE-UM-001-EN V1.3.0
Insulating Distance
When earth metal is installed within proximity of the breakers, the correct insulating distance must be maintained, (refer to Minimum Clearance).
This distance is necessary to allow the exhausted arc gases to disperse. This could include the mounting plate or side panel within a switchboard.
Minimum Clearance
Below illustrates the minimum clearance that must be maintained.
Dim. Description MCCB Cat. No.
Distances (mm)
A B
1
B
2
C D E
A Distance from lower breaker to open charging part of terminal on
upper breaker (front connection) or the distance from lower
breaker to upper breaker end (rear connection and plug-in type) P160F 50 10 10 0 25
^
P160N / H / D 75 45 25 0 25
^
P250F 50 40 30 0 25
^
B
1
Distance from breaker end to ceiling (earthed metal) P250N / H / D 80 80 30 0 25
^
B
2
Distance from breaker end to insulator P400F / N / H / D 100 80 60 0 80
^
C Clearance between breakers P400S 120 120 80 0 80
^
D Distance from breaker side to side plate (earthed metal) P630F / N / H / D 100 80 60 0 80
^
E Length of insulation over exposed conductors. P630S 120 120 80 0 80
^
^ Insulate the exposed conductor until it overlaps the moulded case at the terminal, or the terminal cover.