To order an ASCO Series 300SE Power Transfer Switch, complete the following catalog number:

If in doubt or you need additional information we recommend you contact one of our Sales representatives. They have the knowledge to facilitate the ordering process to ensure you choose the product you need.

Call us at 1-800-800-ASCO (2726)

3AUS	+ B	+ 3	+ 400	+ N		+ 1	+ X	+ C		+ 11CD	+ 240V / 60Hz
Product	Neutral Code	Phase Poles	Amperes Continuous Rating	Voltage Code		Controller	Options	Enclosure		Optional Accessories	Specific Volt & Freq
3AUS	B1 Switched Neutral	2 poles, 1 Ø 3 poles, 3 Ø	30, 70, 104, 150, 2006, 2256, 250, 400, 600, 800, 1000, 1200, 1600, 2000, 2500, 3000	A3	115	1	Insert "X" If optional accessories are required	C	Type 1 (Standard)	11BG Programmable Engine Exerciser	This information is necessary to allow correct control settings prior to shipment.
				B3	120
				C	208
				D	220			M	Type 3R Secured Enclosure	14AA/14BA Auxiliary Contacts (2 Sets)
				E	230
				F	240
				H	380			N	Type 4 Secured Enclosure2	44G Strip Heater with Thermostat
				J	400
				K	415
				L	440			P	Type 4X SS Secured Double Door Enclosure7	72A Serial Module
				M	460
				N	480					72E Connectivity Module
				Q	575			Q	Type 12 Secured Enclosure2
				R	600					73A Surge Suppressor

Note:

1. Specify neutral code "C" for 225, 250 and 400 amperes only.
2. Available 70-1000 ampacity. Use Type 3R for 1200-3000 amp applications.
3. 115-120 volt available 150-400 amps only.
4. A solid neutral is standard on 3AUS.
5. For switch sizes 70-225 amperes only.
6. 200, 225 ampere rated switch suitable for use with copper cable only.

Extended Warranties for Series 300SE Transfer Switches

Catalog No.	Description
3EXW300SE	Three-Year Extended Warranty (Parts & Labor) Total 3 years
4EXW300SE	Four-Year Extended Warranty (Parts & Labor)  Total 4 years
5EXW300SE	Five-Year Extended Warranty (Parts & Labor)  Total 5 years