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38
MR
medium rating busbar
feed units
(continued)
, in-line bus switcher and reducers
MR is fully compliant with BS EN 60439-2
Rated currents are at an average ambient temperature of 40° C (over and above the required standard of 35° C)
IP 55 (according to BS EN 60529)
Pack
Cat. Nos.
In-line bus switches
Allows disconnection of part of a
line, while the other is live
Right hand
Weight (kg)
Aluminium
Copper
Rating (A)
Aluminium
Copper
1
504
0
1701
160
23·54
–
1
504
0
1702
554
0
1702
250
23·56
24·27
1
504
0
1703
554
0
1703
315
23·63
24·50
1
504
0
1704
554
0
1704
400
29·32
25·38
1
504
0
1708
500
29·50
–
1
504
0
1705
554
0
1705
630
29·73
32·17
1
504
0
1706
554
0
1706
800
29·80
33·90
1
504
0
1707
554
0
1707
1 000
32·11
35·13
Left hand
Weight (kg)
Rating (A)
Aluminium
Copper
1
504
0
1721
160
23·54
–
1
504
0
1722
554
0
1722
250
23·56
24·27
1
504
0
1723
554
0
1723
315
23·63
24·50
1
504
0
1724
554
0
1724
400
29·32
25·38
1
504
0
1728
500
29·50
–
1
504
0
1725
554
0
1725
630
29·73
32·17
1
504
0
1726
554
0
1726
800
29·80
33·90
1
504
0
1727
554
0
1727
1 000
32·11
35·13
Pack
Cat. Nos.
Feed units
(continued)
Centre feed units
Feeds a trunking system from an
intermediate position along the
run. Also used to reduce the volt
drop of the line
Weight (kg)
Aluminium
Copper
Rating (A)
Aluminium
Copper
1
504
0
1201
160
17·27
–
1
504
0
1202
554
0
1202
250
18·13
19·12
1
504
0
1203
554
0
1203
315
18·88
19·40
1
504
0
1204
554
0
1204
400
22·06
20·34
1
504
0
1208
500
22·65
–
1
504
0
1205
554
0
1205
630
23·24
26·88
1
504
0
1206
554
0
1206
800
24·02
28·67
1
504
0
1207
554
0
1207
1 000
25·70
29·95
Switchboard-transformer
feed units
Feed unit for direct connection of
the busbar to a switchboard or
to the low voltage terminals of a
distribution transformer
Right hand
Weight (kg)
Rating (A)
Aluminium
Copper
1
504
0
1001
160
4·9
–
1
504
0
1002
554
0
1002
250
5·1
5·7
1
504
0
1003
554
0
1003
315
5·3
6·0
1
504
0
1004
554
0
1004
400
6·4
9·2
1
504
0
1008
500
6·9
–
1
504
0
1005
554
0
1005
630
7·5
9·3
1
504
0
1006
554
0
1006
800
7·9
11·4
1
504
0
1007
554
0
1007
1 000
8·3
12·9
Left hand
Weight (kg)
Rating (A)
Aluminium
Copper
1
504
0
1011
160
6·0
–
1
504
0
1012
554
0
1012
250
6·1
6·7
1
504
0
1013
554
0
1013
315
6·2
7·0
1
504
0
1014
554
0
1014
400
11·3
7·8
1
504
0
1018
500
11·4
–
1
504
0
1015
554
0
1015
630
11·7
14·2
1
504
0
1016
554
0
1016
800
11·8
15·9
1
504
0
1017
554
0
1017
1 000
12·5
17·1
Centre feed unit
In-line bus switch
right hand
In-line bus switch
left hand
Switchboard-transformer
feed units
right hand
Switchboard-transformer
feed units
left hand
Key : How to select the correct configuration and finish
All examples on this page show 4 conductor galvanised lengths
No. of conductors and finish is dictated by the
red
number
0
= 4 conductors. Galvanised
2
= 4 conductors. Painted
1
= 5 conductors. Galvanised
3
= 5 conductors. Painted
Replace
0
with
1
,
2
, or
3
if required
4
5
- - -
0
- - - -
- - -
1
- - - -
- - -
2
- - - -
- - -
3
- - - -
Codes table
Conductors Case
Code
Painted
Painted
Galvanized
Galvanized
MR
MRF
MR-P
MRF-P
-
-
t l
t
i t
Pai ted
l
i
l
i
-P
4
5
- - -
0
- - - -
- - -
1
- - - -
- - -
2
- - - -
- - -
3
- - - -
Codes table
Conductors Case
Code
Painted
Painted
Gal nized
Galvanized
MR
MRF
MR-P
MRF-P
-
-
-
t l
n t r
P i t
i t
l
i
G l
i
-
-
Contact us on +44 (0) 845 600 6266
Rating reducers with disconnector and
fuse holder also available
Dimensions and technical information p. 45-46