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MR
medium rating busbar
horizontal tees and crossovers
36
Pack
Cat. Nos.
Horizontal tees –
bespoke dimensions
Please specify required length
when ordering
Arms can be 250 to 900 mm
Right hand – female
Aluminium
Copper
Rating (A)
1
504
0
0741
160
1
504
0
0742 554
0
0742
250
1
504
0
0743 554
0
0743
315
1
504
0
0744 554
0
0744
400
1
504
0
0748
500
1
504
0
0745 554
0
0745
630
1
504
0
0746 554
0
0746
800
1
504
0
0747
1
554
0
0747 1 000
Right hand – male
Rating (A)
1
504
0
0751
160
1
504
0
0752 554
0
0752
250
1
504
0
0753 554
0
0753
315
1
504
0
0754 554
0
0754
400
1
504
0
0758
500
1
504
0
0755 554
0
0755
630
1
504
0
0756 554
0
0756
800
1
504
0
0757
1
554
0
0757 1 000
Left hand – female
Rating (A)
1
504
0
0761
160
1
504
0
0762 554
0
0762
250
1
504
0
0763 554
0
0763
315
1
504
0
0764 554
0
0764
400
1
504
0
0768
500
1
504
0
0765 554
0
0765
630
1
504
0
0766 554
0
0766
800
1
504
0
0767
1
554
0
0767 1 000
Left hand – male
Rating (A)
1
504
0
0771
160
1
504
0
0772 554
0
0772
250
1
504
0
0773 554
0
0773
315
1
504
0
0774 554
0
0774
400
1
504
0
0778
500
1
504
0
0775 554
0
0775
630
1
504
0
0776 554
0
0776
800
1
504
0
0777
1
554
0
0777 1 000
Crossovers –
standard dimension
(300 + 300 + 300 + 300 mm)
Weight (kg)
Aluminium
Copper
Rating (A)
Aluminium Copper
1
504
0
3001
160
15·5
–
1
504
0
3002 554
0
3002
250
15·7
17·6
1
504
0
3003 554
0
3003
315
16·1
18·4
1
504
0
3004 554
0
3004
400
27·5
21·1
1
504
0
3008
500
29·3
–
1
504
0
3005 554
0
3005
630
29·1
35·2
1
504
0
3006 554
0
3006
800
29·5
40·2
1
504
0
3007
1
554
0
3007 1 000
29·9
43·7
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)
Angles are 90° as standard. Other angles available on request
IP 55 (according to BS EN 60529)
Pack
Cat. Nos.
Horizontal tees –
standard dimension
(300 + 300 + 300 mm)
Right hand – female
Weight (kg)
Aluminium
Copper
Rating (A)
Aluminium Copper
1
504
0
0701
160
11·2
–
1
504
0
0702 554
0
0702
250
11·4
12·8
1
504
0
0703 554
0
0703
315
11·8
13·4
1
504
0
0704 554
0
0704
400
18·4
15·7
1
504
0
0708
500
19·5
–
1
504
0
0705 554
0
0705
630
20·0
24·4
1
504
0
0706 554
0
0706
800
20·5
28·5
1
504
0
0707
1
554
0
0707 1 000
21·0
31·3
Right hand – male
Weight (kg)
Rating (A)
Aluminium Copper
1
504
0
0711
160
11·2
–
1
504
0
0712 554
0
0712
250
11·4
12·8
1
504
0
0713 554
0
0713
315
11·8
13·4
1
504
0
0714 554
0
0714
400
18·4
15·7
1
504
0
0718
500
19·5
–
1
504
0
0715 554
0
0715
630
20·0
24·4
1
504
0
0716 554
0
0716
800
20·5
28·5
1
504
0
0717
1
554
0
0717 1 000
21·0
31·3
Left hand – female
Weight (kg)
Rating (A)
Aluminium Copper
1
504
0
0721
160
11·2
–
1
504
0
0722 554
0
0722
250
11·4
12·8
1
504
0
0723 554
0
0723
315
11·8
13·4
1
504
0
0724 554
0
0724
400
18·4
15·7
1
504
0
0728
500
19·5
–
1
504
0
0725 554
0
0725
630
20·0
24·4
1
504
0
0726 554
0
0726
800
20·5
28·5
1
504
0
0727
1
554
0
0727 1 000
21·0
31·3
Left hand – male
Weight (kg)
Rating (A)
Aluminium Copper
1
504
0
0731
160
11·2
–
1
504
0
0732 554
0
0732
250
11·4
12·8
1
504
0
0733 554
0
0733
315
11·8
13·4
1
504
0
0734 554
0
0734
400
18·4
15·7
1
504
0
0738
500
19·5
–
1
504
0
0735 554
0
0735
630
20·0
24·4
1
504
0
0736 554
0
0736
800
20·5
28·5
1
504
0
0737
1
554
0
0737 1 000
21·0
31·3
Horizontal tee
right hand – female
Horizontal tee
left hand – female
Horizontal tee
right hand – male
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
i t
l
i
l
i
4
5
- - -
0
- - - -
- - -
1
- - - -
- - -
2
- - - -
- - -
3
- - - -
Codes table
Conductors Case
Code
Painted
Painted
Gal nized
Galvanized
MR
MRF
MR-P
MRF-P
- - -
0
- - - -
-
-
-
t l
n t r
P i t
i t
l
i
G l
i
-
-
Crossover
Horizontal tee
left hand – male
1 : The 1 000 A aluminium is
supplied painted as standard
Dimensions and technical information p. 45 Measuring bespoke dimensions p. 49