Page 109 of Current Catalog by Moeller Electric USA

03/032 system pkz 2-sp self-protected combination starters all-in-one starter eliminates upstream circuit breaker or fuses as per the intent of nec article 430 and cec rule 28 the self-protected control device will perform the functions of motor disconnecting means part h motor branch circuit short circuit and ground fault protection part d motor controller part g and motor overload protection part c up to the maximum rated short-circuit current available no upstream circuit breaker or set of fuses is required the pkz 2/zm s-sp has two sets of main contacts both current-limiting in design this provides it with a high interrupting rating and the capability to protect itself against damage under fault conditions no contact welding can ensue thus providing for continuity of service each unit consists of a basic frame disconnect switch and contactor rated to switch a motor load of 30hp at 460v 25 hp at 575v ac eleven plug-in trip modules are available to cover motor loads ranging from fractional hp sizes through 30 hp at 460v and 25 hp at 575v ac as a result stocking of parts is minimized and use of the starter for other motor loads may be as simple as plugging-in a new trip module and setting the trip module response dials choose the pkz2/zm s-sp starter for maximum protection and flexibility · ul listed for use on circuits capable of delivering 65ka rms sym at 480y/277v ac and 42ka rms sym at 600y 347v ac no backup short-circuit protection required replaces fuses or circuit breakers required by other conventional starters plug-in trip modules can be removed/installed without disturbing power wiring field-adjustable coordinated and sealable settings for motor overload and short-circuit trip response compact design allows installation in hard-to-fit areas exceeds iec type 2 coordination without the need for additional fuses or circuit breakers removal of trip block for maintenance or servicing provides visible electrical isolation gap between line disconnecting and contactor portions all live parts including terminals are shrouded against accidental contact finger-proof per iec 536 even with the plug-in trip module removed maximum continuity of service protects itself against damage from fault currents magnetic contactors magnetic starters · · · · · · · · the pkz2/zm s-sp self-protected starter comes standard as a one piece construction featuring a main disconnect and a contactor the unit can be either panel or rail mounted integral power takeoffs are provided between the disconnect and contactor for control circuit feed adjustable motor protective thermal -magnetic trip modules are set in accordance with the motor full load current and plugged directly into the base of the disconnect trip modules and accessories can be field installed for maximum versatility the main disconnect and contactor modules can also be separately mounted this is particularly suitable for full voltage reversing applications which combine the pkz2-sp disconnect switch and two mechanically interlocked s-pkz2 contactors a page 08/024 1 2 3 4 5 6 7 8 9 10 11 12 13 both field wiring terminals on the line side disconnect and load side contactor have large service entrance spacings typical of molded case circuit breakers the main disconnect isolating contacts are current limiting in design visible finger-touch-proof open circuit power path when trip module is removed the contactor main switching contacts are also current limiting in design and significantly enhance the device s overall interrupting ability the contactor comes standard with 1 n.o and 1 n.c auxiliary contacts 2 n.o contacts are also available the trip module can be set and then sealed with a wire lock padlockable handle with on off and tripped indication field-interchangeable plug-in motor protective trip modules with coordinated overload and short-circuit protection built in adjustable magnetic trip dial range 8.5 14 x trip module rating adjustable thermal trip dial range 0.6 1 x trip module rating set to motor flc test-to-trip slot coding feature to differentiate trip modules short-circuit trip indicator k-agm-pkz2 provides visual indication of short circuit trip condition and differentiation between short-circuit and general trip due to overload and/or voltage trips.

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