Lambda 303 Series, Руководство оператора

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INSTALLATION
83-489-009 Rev A
4-13
4.5 AC POWER CONNECTION
The maximum voltage allowed between any two AC input
terminals is 550VAC. If this voltage is exceeded,
catastrophic damage will result, that is not covered by
Lambda Americas standard warranty.
The customer’s AC power line connects to the 203/303 via a UL/CSA approved 5 posi-
tion terminal block on the rear panel of the unit (see Figure 4-3). Only use a power cable
with the correct voltage and current rating (see Table 4-1). The ground wire must be
equal to or larger than the recommended gauge. Proper grounding from the input AC
power is required to reduce the risk of electric shock. The metal chassis of the power
supply is grounded through the earth wire at the input AC power terminal block. Use ex-
treme caution when connecting input AC power and never apply the incorrect input
power.
The Protective Earth Ground must be connected before
applying AC Line Power to the 203/303.
Connect the three lines of the input power to the L1, L2, L3 terminals and the earth
ground to the terminal marked with the ground symbol (
). No neutral connection is
required for the 480 or 208V configuration. For models with the 400VAC input configura-
tion (360-440VAC) the neutral wire must be connected to terminal marked N. The power
connections are not phase rotation sensitive, so any phase can be connected to any of
the AC inputs.
Figure 4-3. AC Input Terminal Block
A
1
B
2
C
3
N
4 5
TB1 AC INPUT
A
1
B
2
C
3
N
4 5
TB1 AC INPUT