Parker 506 Series, Product Manual

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Installing the 506/507/508
4-3
506/507/508 - HA389427
Requirements for UL Compliance
For installations requiring compliance with UL Standards.
Motor Overload Protection
An external motor overload protective device must be provided by
the installer. This device can comprise of a thermal sensor within
the motor winding monitored by an external relay but this
combination cannot be evaluated by UL. Hence, it is the
responsibility of the installer/local inspector to determine whether
the combination is in compliance with the National Electrical Code
or local code requirements.
Short Circuit Protection Requirements
UL Recognized semiconductor fuses must be installed upstream of
the controllers. Refer to the semiconductor fuses table on the
previous page for recommended semiconductor fuse manufacturer
and type number.
Short Circuit Rating
The 506 and 507 controllers are suitable for use on a circuit capable
of delivering not more than 1000 RMS symmetrical amperes, 240V
maximum; whilst the 508 controller is suitable for use on a circuit
capable of delivering not more than 5000 rms symmetrical amperes,
240V maximum.
Operating Ambient Temperature
The maximum operating ambient temperature rating is 40
o
C.
Field Wiring Temperature Rating
Use 75
o
C copper conductors only.
Field Wiring Terminal Markings
For correct field wiring connections that are to be made to each
terminal, refer to Chapter 5: “Terminal Description” - Power
Terminals and Chapter 3 “Technical Specification” - Control
Terminals.
Power Wiring Terminals
The power wirint terminals accept a maximum conductor size of No.
10 AWG (5.3mm
2
).