Installation
Clearances
22
TemBreak
PRO
P_SE-UM-001-EN
– V1.2.0
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.
Summary of Contents for Terasaki TemBreak PRO P SE Series
Page 106: ...106 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex A Dimensions P160 Dimensions...
Page 107: ...Annex A Dimensions 107 TemBreak PRO P_SE UM 001 EN V1 2 0 P250 Dimensions...
Page 108: ...Annex A Dimensions 108 TemBreak PRO P_SE UM 001 EN V1 2 0 P400 Dimensions...
Page 109: ...Annex A Dimensions 109 TemBreak PRO P_SE UM 001 EN V1 2 0 P630 Dimensions...
Page 111: ...111 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex C I2t Let Through Curves P160_SE...
Page 112: ...Annex C I2t Let Through Curves 112 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 113: ...Annex C I2t Let Through Curves 113 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 114: ...Annex C I2t Let Through Curves 114 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
Page 115: ...115 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex D Peak Let Through Curves P160_SE...
Page 116: ...116 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 117: ...117 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 118: ...118 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
Page 121: ...121 TemBreak PRO P_SE UM 001 EN V1 2 0 This page is intentionally left blank...