
46
Zenith ZBTS T-series 100-1200A, I N S TA LL ATI O N A N D O PER ATI N G I N S TR U C TI O N
1
—
4.1 Auxiliary Power Supply Module OXEA1
—
Fig. 4.4 Signals of auxiliary power supply module OXEA1
The auxiliary power supply module, type
OXEA1, supplies non-insulated power to
the external Ekip-modules, HMI and the
main control unit. The module is factory-in-
stalled to both switches. In the draw-out
switches (always ATS) the OXEA1 module is
also in internal use, not possible to use for
other purposes. In
fixed type Bypass
switch it is possible add two Ekip modules
according to your choice powered by
OXEA1, see previous page and Chapter 8.
OXEA1 is supplied by external supply, for
example from generator battery or from
isolated transformer connected to the
main circuit. Powering product only with
Auxiliary power supply module, OXEA1,
limits some operation functions of the By-
pass control unit.
Connections are push-in spring terminals,
no tool is required. For external wiring ca-
ble cross sections:
• K1+ / K2-; AWG 22-16 / 0,5-1,5 mm
2
• W3 / W4; AWG 26-20 / flexible, with
4.1.2 Signallings
Module
OXEA1
Power supply input voltage
(K1+, K2-)
12 - 24 V DC
± 10% SELV
Nominal power consumption
5 - 12 W
Inrush current
Maximum 2 A
Local Bus (A)
W3
Local Bus (B)
W4
4.1.1 Electrical Characteristics
The following table lists the electrical
characteristics:
LED
Indication
Description
Power LED,
green
On, fixed
Power is connected to
the input of the module.
Off Power is not connected.
—
Fig. 4.5 Auxiliary power supply module, type OXEA1, is
factory-installed in both switches. In
fixed type Bypass switch
it is possible add two Ekip modules powered by OXEA1
ferrule; with plastic sleeve 0,25-0,34mm
2
/ without plastic sleeve 0,25-0,5mm
2
• For the Local Bus, Belden type 3105A or
equivalent cables must be used, that is
with a pair of twisted and shielded cables,
with a characteristic impedance equal to
120 Ω.
- The maximum recommended length for
the connection is 10 m.
Содержание Zenith ZBTS T Series
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