Standard models i.e. BM06/25/4LC or VT08/35/2.5F
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Reference position |
Shows |
Possible ref. letters/nos. |
Description |
Example |
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Red letter
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Model.
Bloc or Nova |
B / V |
B=Bloc, V=Nova |
if ref is B = Bloc model i.e. 400A or 800A |
Green letter
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Number of incoming phases |
S / D / T / M / N |
S=Single pole, D=Double pole, T=Triple pole,
M=Multipole.
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if ref is BT=Bloc model
with triple pole incoming connections
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Blue number |
Number of outgoing ways |
04 / 06 / 08 / 10 / 12 / etc. |
4, 6, 8, 10, 12, etc. outgoing ways |
if ref is BT06=Bloc model with
6 outgoing triple pole ways. |
Brown number |
distance c/c in mm between adjacent outgoing terminals |
18 / 25 / 30 / 35 |
18, 25, 30 & 35 mm outgoing Terminal Centres |
if ref is BM/06/25=Bloc model with outgoing terminals at 25 mm c/c. |
Turquoise number |
Ref for Rating in Amps |
8/4/2.5 |
Busbars Rated at 800, 400 or 250 Amps |
if ref is BT06/25/4C=400A Bloc |
Orange letter |
Neutral position - 4 pole units only
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L or R |
L= N on the left, R = N on the right. |
if ref is BM/06/25/8HL=Bloc model with
Neutral connection on the left. |
Black number |
Type of outgoing terminal |
C, H or F |
A clamp, hole or fork fixing of the MCCB to the outgoing terminal |
if ref is VT08/35/2.5F= Nova with a fork shaped outgoing terminal to accommodate a bolt fixing. |
Some Non standard configuration models
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e.g. VMYXX(M02+T06+D08)25/2.5LCSi |
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Generally as standard models but with variations as below. |
Black numbers
("XX") above |
c/c of incoming terminals on Nova models if not standard 35mm c/c. |
18 / 25 / 30 |
Used with Nova models only.
Used if incoming terminals are other than standard 35 mm c/c for 250A device. Special request only. May not be available. |
if ref is VT18(T12)/18/1.5C
= Nova with Incoming TP terminals at 18mm c/c.
Used on Nova only.
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Pink letters in brackets |
Type of outgoing phases |
S / D / T / M / N |
S=Single pole, D=Double pole, T=Triple pole, M=Multipole.
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if ref is as in eg above = Nova with 4 pole incoming supply & 2 no. M (4 pole) outgoing ways, 6 no. T (3 pole) outgoing ways and 8 no. D (2 pole) outgoing ways.
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Blue numbers |
Number of outgoing ways |
04 / 06 / 08 / 10 / 12 / etc. |
4, 6, 8, 10, 12, etc. outgoing ways |
if ref is as in eg above = Nova with 4 pole incoming supply & 2 no. 4 pole outgoing ways, 6 no. 3P outgoing ways and 8 no. 2P outgoing ways. |
Incoming N on left or right. |
Yellow
L or R
Nova only
see diagram above
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Used if incoming N is not the same position as outgoing N.
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L=incoming N on the left
R= incoming N on the right
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eg. VML08/18/2.5CR_54_VC1 = Multipole Nova with incoming N on the left and the outgoing N on the right. |
The following to be used as a suffix and can be in any order
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G(xx) |
Millennium unit that provides for a xx mm gap between adjacent outgoing devices
eg. G(20) has a 20mm gap between adjacent devices. |
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D |
Millennium tie unit with busbar connections at each end of the unit |
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DE |
Millennium split unit with busbar connections at each end of the busbar to cater for emergency/backup supply conditions |
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SI |
A unit with incoming connections at the side of the busbar - no end connections.
ex. VM(T04+M2L)25/2.5CSI=Nova 250A, 4 pole incoming connections. 4 way triplepole + 2 way multipole outgoing ways with Neutral on the left. All terminals at 25 mm c/c including side incoming connections. |
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SO |
A unit with outgoing terminals from one side only. |
Outgoing terminal & device references - see diagram above |
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c/c of adjacent outgoing devices. |
54, 72, 75.5, 81, 91, 95, 103, 105, 105.5 140, |
Spacing centre to centre in mm of adjacent outgoing devices. |
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Specifies some outgoing terminal in full. |
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See Nova or Bloc terminal type drawings for alternatives |