Technical Data and Specifications 8-3
Revision 0.1 – 3 June 1999 FP12 DIMMER USER MANUAL
8.3 Mains wiring colour codes
FLEXIBLE TAILS I NS T ALLED WIRING
PHASE A BROWN RED
PHASE B WHITE WHITE
PHASE C BLACK BLUE
NEUTRAL BLUE BLACK
EARTH GREEN / YELLOW GREEN / YELLOW
8.4 Internal Mains Wiring
Th e FP1 2 d immer has be en design ed to run from most commonly use d p ower s ystems.
8.4.1 Normal Three Phase plus Neutral Operation
The FP12 is normally supplied with a three-phase power cable and plug att ached, suiting
the vast majority of available mains supplies (ie. three phase and neutral).
The incoming mains supply must be prot ected at not more than the specified maximum.
Mains supplies are generally protect ed at lower currents (32 amps or 40 amps at most
Aus tra lia n ve n u e s ). I t is the r e s p on s ibility o f the u s er to e ns u re that th e d imme r is u s e d in
a manner that do es not exceed the available supply capacity.
The power cable is terminated within t he dimmer at a six-way terminal block and an
earthing stud. The six-way terminal block has three poles for the t hree live mains phases
(labelled A1, A2, A3), and three poles for the mains neutral (N1, N2, N3). The three
neu t r a l po le s ar e brid g e d by a co p p e r lin k , wit h t he inc o min g ma ins ne u t r a l co n ne c t ed t o
t er minal N2.
8.4.2 Single Phase Operation
The dimmer may be configured for single phase operation where three phase mains
supply is unavailable.
The d immer should be supplied with three same-phase actives and three neutrals. The
three active lines must each be protected at no t more than the specified maximum. The
three neutral conducto rs must each be rated at t he same current as t he act ives. The eart h
conductor shou ld be similarly rat ed .
The bridge between the three neutral terminal poles (N1, N2, N3) must be removed
before the three incoming neutral lines are connected.
Although it is possible to supply the dimmer with one large single phase feed, the
dimme r’ s br ea ke rs may n ot be r at ed t o clea r fau lts if t he s upply is protected at cur rents
greater t han the specified maximum.
Th e overv oltage d etection w ill opera te as normal.
8.4.3 Delta Supply Operation
The available venue mains supply in some countries (eg. the Philippin e s ) is in the form o f
three phases (220 volts between phases) with no neutral connection. The dimmer ma y b e
configured for operation from 220V delta supplies.