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3KA, 3KE switch disconnectors

Enclosure with built-in switch disconnector as main and emergency stop switch.
Switch disconnectors see section on "Switch disconnectors" in Catalog LV 10 (at: http://www.siemens.com/lowvoltage/catalog-lv10).

Mounting instructions

The conductor cross-section refers to the connecting terminal of the switching device. A separate splitter box may be necessary for the cable entry.
Expandable enclosures (3b) have the option of mounting an additional connecting terminal for the 5th conductor (not included included in scope of supply).

Enclosure size	Rated current I_n	Rated operational current I_e	Rated shutdown capability**	[2b] Version		W ? H ? D²⁾	Equipment
				Main switch	Emergency STOP switch		[2a] Switch disconnector	[3a] N/PE terminal 4. Leiter	[3b] 5th terminal Expandable
	A	A				mm
2	63	63	500 A/660 V (AC-23)	8HP2705	8HP2742	307 ? 307 ? 167	3KA50 up to 35 mm?	8WA1205 up to 35 mm?	?
	125	125	125 A/690 V (AC-23 A)	8HP2707	8HP2747	307 ? 307 ? 167	3KA52 up to 70 mm?	8WA1206 up to 70 mm?	?
	160	160	250 A/660 V (AC-23)	8HP2714	8HP2744	307 ? 307 ? 232	3KA53 up to 120 mm?	8WA1206 up to 70 mm?	?
	250	250	800 A/660 V (AC-22)	8HP2732	8HP2752	307 ? 307 ? 232	3KE42 up to 150 mm?	8JK401 up to 70 mm?	?
	400	400	1200 A/660 V (AC-22)	8HP2734	8HP2754	307 ? 307 ? 232	3KE43 to 2 ? 150 mm? or 1 ? 24 mm?	8JK404 up to 150 mm?	?
	400	400	2400 A/660 V (AC-23)	8HP2716	8HP2746	307 ? 307 ? 232	3KA57 up to 150 mm²	--	?
3	160	160	250 A/660 V (AC-23)	8HP2711	8HP2748	307 ? 614 ? 167	3KA53 up to 120 mm?	8WA1206 up to 70 mm?	?
	250	250	250 A/690 V (AC-23 A)	8HP2712	8HP2761	307 ? 614 ? 260	3KA55 up to 150 mm?	--	?
	250	250	800 A/660 V (AC-22)	8HP2733	8HP2753	307 ? 614 ? 260	3KE42 up to 150 mm?	8JK401 up to 70 mm?	?
	400	400	1200 A/660 V (AC-23)	8HP2735	8HP2755	307 ? 614 ? 260	3KE43 to 2 ? 150 mm?or 1 ? 240 mm?	8JK404 to 150 mm?	?
	400	400	2400 A/660 A (AC-23)	8HP2717	8HP2762	307 ? 614 ? 260	3KA57 up to 150 mm?	--	?
	630	630	400 A/690 V (AC-23 B)	8HP2718	8HP2763	307 ? 614 ? 260	3KA58 up to 240 mm?	--	?
	630	630	2500 A/660 V (AC-23)	8HP2736	8HP2756	307 ? 614 ? 260	3KE44 up to 240 mm?	8JK406 up to 240 mm?	?
	1000	800¹⁾	2500 A/660 V (AC-23)	8HP2738	8HP2758	307 ? 614 ? 260	3KE45 up to 2 ? 240 mm?	8JK406 up to 240 mm?	?

¹⁾ Full loading with 800 A only possible with busbars Cu 2 ? (30 mm ? 10 mm) and supply line Cu 2 ? (40 mm ? 5 mm) or Cu cable 2 ? (3 ? 240) mm².

²⁾ Dimensions without setting knob [2b].

	Version			Article No.
Enclosure complete
8HP2 705	Main control switch
	Enclosure size	Rated operational current I_e in A	Switch disconnector
	2	63	3KA50	8HP2705
		125	3KA52	8HP2707
		160	3KA53	8HP2714
		250	3KE42	8HP2732
		400	3KA57	8HP2716
		400	3KE43	8HP2734
	3	160	3KA53	8HP2711
		250	3KA55	8HP2712
		250	3KE42	8HP2733
		400	3KA57	8HP2717
		400	3KE43	8HP2735
		630	3KA58	8HP2718
		630	3KE44	8HP2736
		800	3KE45	8HP2738
8HP2 742	EMERGENCY-OFF switch
	Enclosure size	Rated operational current I_e in A	Switch disconnector
	2	63	3KA50	8HP2742
		125	3KA52	8HP2747
		160	3KA53	8HP2744
		250	3KE42	8HP2752
		400	3KA57	8HP2746
		400	3KE43	8HP2754
	3	160	3KA53	8HP2748
		250	3KA55	8HP2761
		250	3KE42	8HP2753
		400	3KA57	8HP2762
		400	3KE43	8HP2755
		630	3KA58	8HP2763
		630	3KE44	8HP2756
		800	3KE45	8HP2758