Curtiss-Wright EXLAR Tritex II AC, Installation And Service Manual

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Curtiss-Wright | Tritex II AC 90, 115 Rev. X PN39892 7/12/22 45
the only wiring and connection method approved for UL Listed Tritex II
products is conduit with NPT fittings. Therefore, only models with NPT
fittings carry the UL logo.
AC Input Power
Tritex II actuators require 100 Vac to 240 Vac (nominal) single phase
50/60 Hz to operate. An additional 24 Vdc power supply is required for
I/O and holding brake, if used. The following sections contain important
information on ratings, acceptable power sources and connections,
situations requiring isolation transformers, overcurrent protection
(fusing), and details of wiring to power terminal blocks or connectors.
See diagrams below for connections to 3 phase and single phase
power sources. The AC supply must be earthed with PE connected to
the earthed point at the source. In terminology used in the EU, Tritex II
must be connected to a Type TN system, and must not be used on a
Type TT or IT system without an isolation transformer so that the
secondary can be earthed.
Input Power Ratings
The following table shows rated input voltage and current. The
maximum voltage applied to the Tritex terminals must not exceed
264 Vac phase to phase or phase to PE ground. Operation on less than
rated voltage results in proportionally reduced maximum speed. Refer to
Torque/Speed diagrams in catalog for additional information.
Actuator
Size
Input Voltage
(Volts ac)
Frequency
(Hz)
Input Current at
rated output
power
(Amps rms)
Inrush Current
(Amps)
90 mm
240+/-10% 1Ф 47-63
6.3 50 (<5 msec)
115mm 8.3 70 (<5 msec)
AC Supplies NOT Requiring Transformers
If the distribution transformer is configured as shown in the figures
below, the AC power supply can be connected directly to the actuator
terminals without an isolation transformer.