Martin Professional Extube, User Manual

Page: 21 / 48

AC power 21
Current draw and fuse ratings
See "Typical Power and Current" on page 44 for details of current drawn
by Extube fixtures.
Extube 300 mm fixtures are protected by a 1 amp slow-blow primary fuse
and 1200 mm fixtures are protected by four 1 amp slow-blow fuses. Fuses
are located internally on the power PCB and are not user-serviceable. If
you suspect that a fuse has blown, please contact your Martin supplier for
assistance.
Connecting to power
An Extube fixture or group of fixtures draws power via the 13 A power
cable tail installed on an Extube power input cap.
Details of standard US and EU conductor identification systems are given
in Table 1.
Warning! Terminals inside the input cap are live when power is
applied to the power cable. Terminals inside the connector at the
output end of the fixture are live when power is applied to the fixture.
Do not apply power to the power cable unless the input cap is
installed on the fixture and an end cap is installed either on the
fixture or on the last fixture in a line of interconnected fixtures.
To connect Extubes to power:
1. Lock out power to the installation.
2. Install an end cap on the fixture or on the last fixture in a line of
fixtures.
3. Connect the power cable on the input cap to the power distribution
circuit as follows:
- Connect the green wire (US models) or yellow/green wire (EU
models) to ground (earth)
Wire color
(US system) Wire color
(EU system)
Conductor Symbol Screw (US)
black brown live L yellow or
brass
white blue neutral N silver
green yellow/green ground
(earth) green
Table 1: Conductor identification