ASCO Series 300 Power Transfer Switches

Technical Data and Ordering Information

Brand: ASCO Power Technologies

Ordering Information Structure

To order an ASCO SERIES 300 Power Transfer Switch, a catalog number is constructed by selecting options for FRAME, TRANSITION TYPE, AMPS, PHASE, NEUTRAL CODE, VOLTAGE CODE, GROUP CODE, and ENCLOSURE CODE. The available options for each component are detailed below:

Frame Options:

Open Transition: D30A-230A
Open/Delayed Transition: J (150A-600A), H (800A - 1200A), G (1600A - 3000A)

Transition Type Options:

Automatic: 03ATS Open Transition
Automatic Delayed: 3ADTS Delayed Transition
Non-Automatic: 03NTS Open Transition
Non-Automatic Delayed: 3NDTS Delayed Transition

Amperage Options:

0030, 0070, 0104, 0150, 0200, 0230, 0260, 0400, 0600, 0800, 1000, 1200, 1600, 2000, 2600, 3000

Phase Options:

3-Phase

Neutral Code Options:

A = Solid Neutral
B = Switched Neutral

Voltage Code Options:

A2=115V, B2=120V, C=208V, D=220V, E=230V, F=240V, H=380V, J=400V, K=415V, L=440V, M=460V, N=480V, P=550V, Q=575V, R=600V

Group Code Options:

GX = No Optional Accessories

Enclosure Code Options:

0 = Open Type
C = Type 1 Enclosure
F = Type 3R8.9 Enclosure
G = Type 48 Enclosure
H = Type 4X8 Enclosure (304 Stainless Steel)
L = Type 12 Enclosure
M = Type 3R8.9 Secure Double-Door Enclosure
N = Type 48 Secure Double-Door Enclosure
Q = Type 12 Secure Double-Door Enclosure
R = Type 3RX7,8,9 Secure Double-Door Enclosure (304 Stainless Steel)
S = Type 3RX7,8,9 Secure Double-Door Enclosure (316 Stainless Steel)
U = Type 4X8 Enclosure (316 Stainless Steel)
V = Type 4X8 Secure Double-Door Enclosure (316 Stainless Steel)

Notes on Ordering:

Switch sizes 30-600 amperes supplied in non-secure enclosures as standard.
115-120 volt options available for 30-400 amperes only. Contact ASCO for other voltages.
200 and 230 amperes rated switches are for use with copper cable only.
Switch sizes 800-3000 amperes, and 150-400 amperes 3ADTS/3NDTS are provided in secure type outdoor enclosures when required.
Use Type 3R secure for 1200, 2000, 2600, and 3000 ampere switches.
Type 304 stainless steel is standard. Suitable for indoor or outdoor use where caustic or alkali chemicals may be present. Type 316 stainless steel is recommended for improved resistance to salt and some chemicals, especially in marine environments.
Available on switches rated 1200, 2000, 2600, and 3000 amperes.
When temperatures drop below 32°F (0°C), special precautions like strip heaters are needed to prevent condensation and freezing. This is crucial for outdoor applications with Type 3R, 4 enclosures.
Type 3R enclosures are not suitable for installations exposed to wind-driven rain or snow. Use Type 4 enclosures or provide supplemental shelter.

Dimensions and Shipping Weights

UL Type 1 Enclosure

FRAME	SWITCH RATING (AMPERES)	PHASE POLES	NEUTRAL CODE	WIDTH (IN./MM)	HEIGHT (IN./MM)	DEPTH (IN./MM)	APPROX. SHIPPING WEIGHT (LB./KG)
303,703,1043 1503, 2003	30-200	2	A	18 (457)	31 (787)	13 (330)	69 (32)
303,703,1043 1503, 2003	30-200	2	B	18 (457)	31 (787)	13 (330)	72 (33)
303,703,1043 1503, 2003	30-200	3	A	18 (457)	31 (787)	13 (330)	72 (33)
303,703,1043 1503, 2003	30-200	3	B	18 (457)	31 (787)	13 (330)	75 (34)
230	230	2	A	18 (457)	48 (1219)	13 (330)	117 (53)
230	230	2	B	18 (457)	48 (1219)	13 (330)	125 (57)
230	230	3	A	18 (457)	48 (1219)	13 (330)	125 (57)
230	230	3	B	18 (457)	48 (1219)	13 (330)	133 (61)
260, 400	260, 400	2	A	24 (610)	56 (1422)	14 (356)	250 (113)
260, 400	260, 400	2	B	24 (610)	56 (1422)	14 (356)	260 (118)
260, 400	260, 400	3	A	24 (610)	56 (1422)	14 (356)	260 (118)
260, 400	260, 400	3	B	24 (610)	56 (1422)	14 (356)	270 (123)
150, 200, 230 3ADTS/3NTS only	150, 200, 230	2	A	24 (610)	56 (1422)	14 (356)	250 (113)
150, 200, 230 3ADTS/3NTS only	150, 200, 230	2	B	24 (610)	56 (1422)	14 (356)	260 (118)
150, 200, 230 3ADTS/3NTS only	150, 200, 230	3	A	24 (610)	56 (1422)	14 (356)	260 (118)
150, 200, 230 3ADTS/3NTS only	150, 200, 230	3	B	24 (610)	56 (1422)	14 (356)	270 (123)
600	600	2	A	24 (610)	63 (1600)	17 (432)	300 (137)
600	600	2	B	24 (610)	63 (1600)	17 (432)	320 (146)
600	600	3	A	24 (610)	63 (1600)	17 (432)	320 (146)
600	600	3	B	24 (610)	63 (1600)	17 (432)	320 (151)
800, 1000	800, 1000	2	A	34 (864)	72 (1829)	20 (508)	431 (196)
800, 1000	800, 1000	2	B	34 (864)	72 (1829)	20 (508)	460 (209)
800, 1000	800, 1000	3	A	34 (864)	72 (1829)	20 (508)	460 (209)
800, 1000	800, 1000	3	B	34 (864)	72 (1829)	20 (508)	489 (222)
1200	1200	2	A	38 (965)	87 (2210)	23 (584)	581 (264)
1200	1200	2	B	38 (965)	87 (2210)	23 (584)	611 (277)
1200	1200	3	A	38 (965)	87 (2210)	23 (584)	611 (277)
1200	1200	3	B	38 (965)	87 (2210)	23 (584)	639 (290)
1600, 2000	1600, 2000	2	A	38 (965)	87 (2210)	23 (584)	1160 (525)
1600, 2000	1600, 2000	2	B	38 (965)	87 (2210)	23 (584)	1160 (525)
1600, 2000	1600, 2000	3	A	38 (965)	91 (2311)	72 (1829)	1430 (649)
2600, 30004	2600, 3000	3	B	38 (965)	91 (2311)	72 (1829)	1495 (679)

Notes on Dimensions & Weights (UL Type 1):

Neutral Codes: 0=None, A=Solid, B=Switched.
Dimensional data is approximate and subject to change. Certified dimensions available upon request.
Dimensions for 30-200 ampere models with accessory 135L power meter are 18"W x 41"H x 13"D.
Enclosures for 2600, 3000 amperes are free-standing with removable top, sides, and back.
Unit is designed for top cable entry of emergency and load, and bottom entry of normal. A cable pull box is also available for all top or bottom cable access when required (optional accessory kit #K609027). Not required for Type 3R, 4X, and 12 enclosures where available.

UL Type 3R, 4 or 12 Enclosure

FRAME	SWITCH RATING (AMPERES)	PHASE POLES	NEUTRAL CODE	WIDTH (IN./MM)	HEIGHT (IN./MM)	DEPTH (IN./MM)	APPROX. SHIPPING WEIGHT (LB./KG)
303,703, 1043 1503, 2003 (Non-Secure Enclosure)	30-200	2	A	17.5 (445)	35 (886)	11.625 (295)	84 (38)
303,703, 1043 1503, 2003 (Non-Secure Enclosure)	30-200	2	B	17.5 (445)	35 (886)	11.625 (295)	87 (40)
303,703, 1043 (Non-Secure Enclosure)	30-200	3	A	17.5 (445)	35 (886)	11.625 (295)	87 (40)
303,703, 1043 (Non-Secure Enclosure)	30-200	3	B	17.5 (445)	35 (886)	11.625 (295)	90 (41)
D (Non-Secure Enclosure)	230	2	A	18 (458)	50.5 (1284)	14.33 (364)	90 (41)
D (Non-Secure Enclosure)	230	2	B4 or C	18 (458)	50.5 (1284)	14.33 (364)	132 (60)
D (Non-Secure Enclosure)	230	3	A	18 (458)	50.5 (1284)	14.33 (364)	140 (63)
D (Non-Secure Enclosure)	230	3	B4 or C	18 (458)	50.5 (1284)	14.33 (364)	148 (67)
260, 400	260, 400	2	A	24 (610)	63 (1600)	18.2 (462)	320 (146)
260, 400	260, 400	2	B	24 (610)	63 (1600)	18.2 (462)	340 (155)
260, 400	260, 400	3	A	24 (610)	63 (1600)	18.2 (462)	340 (155)
260, 400	260, 400	3	B	24 (610)	63 (1600)	18.2 (462)	350 (160)
150, 200, 230 SERIES 3ADTS/3NTS only (Non-Secure Enclosure)	150, 200, 230	2	A	24 (610)	63 (1600)	18.2 (462)	320 (146)
150, 200, 230 SERIES 3ADTS/3NTS only (Non-Secure Enclosure)	150, 200, 230	2	B	24 (610)	63 (1600)	18.2 (462)	340 (155)
150, 200, 230 SERIES 3ADTS/3NTS only (Non-Secure Enclosure)	150, 200, 230	3	A	24 (610)	63 (1600)	18.2 (462)	340 (155)
150, 200, 230 SERIES 3ADTS/3NTS only (Non-Secure Enclosure)	150, 200, 230	3	B	24 (610)	63 (1600)	18.2 (462)	350 (160)
600 (Secure Enclosure)	600	2	A	24 (610)	63 (1600)	18.2 (462)	320 (146)
600 (Secure Enclosure)	600	2	B	24 (610)	63 (1600)	18.2 (462)	340 (155)
600 (Secure Enclosure)	600	3	A	24 (610)	63 (1600)	18.2 (462)	340 (155)
600 (Secure Enclosure)	600	3	B	24 (610)	63 (1600)	18.2 (462)	350 (160)
800, 1000 (Secure Enclosure)	800, 1000	2	A	34 (859)	72 (1821)	20 (508)	519 (236)
800, 1000 (Secure Enclosure)	800, 1000	2	B	34 (859)	72 (1821)	20 (506)	543 (246)
800, 1000 (Secure Enclosure)	800, 1000	3	A	34 (859)	72 (1821)	20 (506)	543 (246)
800, 1000 (Secure Enclosure)	800, 1000	3	B	34 (859)	72 (1821)	20 (506)	565 (257)
1200 (Secure Enclosure)	1200	2	A	41 (1037)	95.5 (2415)	33.5 (848)	1131 (513)
1200 (Secure Enclosure)	1200	2	B	41 (1037)	95.5 (2415)	33.5 (848)	1160 (526)
1200 (Secure Enclosure)	1200	3	A	41 (1037)	95.5 (2415)	33.5 (848)	1160 (526)
1200 (Secure Enclosure)	1200	3	B	41 (1037)	95.5 (2415)	33.5 (848)	1189 (539)
1600, 2000 (Secure Enclosure)	1600, 2000	2	A	42.5 (1074)	95.5 (2529)	47 (1189)	1705 (775)
1600, 2000 (Secure Enclosure)	1600, 2000	2	B	42.5 (1074)	95.5 (2529)	47 (1189)	1830 (832)
2600, 3000 (Secure Enclosure)	2600, 3000	3	A	41 (1037)	95.5 (2529)	74 (1872)	2150 (976)
2600, 3000 (Secure Enclosure)	2600, 3000	3	B	41 (1037)	95.5 (2529)	74 (1872)	2230 (1012)

Notes on Dimensions & Weights (UL Type 1):

Neutral Codes: 0=None, A=Solid, B=Switched, C=Overlapping.
Dimensional data is approximate and subject to change. Certified dimensions available upon request.
Dimensions for 30-200 ampere models when furnished with accessory 135L power meter are 18"W x 48"H x 13"D.
30-1000 ampere switches are available in secure type enclosures, contact ASCO for details.

External Power Connections

SWITCH RATING (AMPERES)	RANGES OF AL-CU WIRE SIZES (UNLESS SPECIFIED COPPER ONLY)
30-2301 ATS and NTS only	One #14 to 4/0 AWG
150², 260, 400	Two 1/0 AWG to 250 MCM or One #4 AWG to 600 MCM
600	Two 2/0 AWG to 600 MCM
800, 1000, 1200	Four 1/0 to 600 MCM
1600, 2000	Six 1/0 to 600 MCM
2600, 3000	Twelve 1/0 to 750 MCM

Notes on External Connections:

All SERIES 300 switches are furnished with a solid neutral plate (unless switched neutral configuration is specified) and terminal lugs.
Use wire rated 75°C minimum for all power connections.
1. 200 and 230 amperes rated switches for use with copper cable only. Refer to paragraph 310.15 of the NEC for additional information.
2. 150 for DTS only.

Withstand and Closing Ratings

FRAME	SWITCH RATING (AMPERES)	PHASE POLES	NEUTRAL CODE	CURRENT LIMITING FUSES 240V MAX. AMPS	CURRENT LIMITING FUSES 480V MAX. AMPS	CURRENT LIMITING FUSES 600V MAX. AMPS	CURRENT LIMITING FUSES MAX. SIZE, CLASS	SPECIFIC BREAKER 480V MAX. AMPS	SPECIFIC BREAKER 600V MAX. AMPS	SPECIFIC BREAKER MAX. SIZE, CLASS
303,703, 1043 1503, 2003 (Non-Secure Enclosure)	30	2	A	200	200	J	22kA	22kA
303,703, 1043 1503, 2003 (Non-Secure Enclosure)	30-100	2	B	200	200	J	22kA	22kA
303,703, 1043 (Non-Secure Enclosure)	30-100	3	A	200	200	J	22kA	22kA
303,703, 1043 (Non-Secure Enclosure)	30-100	3	B	200	200	J	22kA	22kA
D (Non-Secure Enclosure)	70-100	2	A	150kA 85kA 25kA	200kA 35kA	200	J	22kA	22kA
D (Non-Secure Enclosure)	150	2	B4 or C	150kA	85kA	25kA	200kA 35kA	200	J	22kA
D (Non-Secure Enclosure)	150	3	A	150kA	85kA	25kA	200kA 35kA	200	J	22kA
D (Non-Secure Enclosure)	150	3	B4 or C	150kA	85kA	25kA	200kA 35kA	200	J	22kA
230	200	2	A	100kA	300	J	200kA 85kA	14kA	35kA 35kA	200	RK1
260, 400	260, 400	2	A	200kA	600	J	65kA	42kA	22kA
260, 400	260, 400	2	B	200kA	600	J	65kA	42kA	22kA
260, 400	260, 400	3	A	200kA	600	J	65kA	42kA	22kA
260, 400	260, 400	3	B	200kA	600	J	65kA	42kA	22kA
150, 200, 230 SERIES 3ADTS/3NTS only	150, 200, 230	2	A	200kA	200kA	42kA	800	L	65kA	50kA	42kA
150, 200, 230 SERIES 3ADTS/3NTS only	150, 200, 230	2	B	200kA	200kA	42kA	800	L	65kA	50kA	42kA
150, 200, 230 SERIES 3ADTS/3NTS only	150, 200, 230	3	A	200kA	200kA	42kA	800	L	65kA	50kA	42kA
150, 200, 230 SERIES 3ADTS/3NTS only	150, 200, 230	3	B	200kA	200kA	42kA	800	L	65kA	50kA	42kA
800, 1000 (Secure Enclosure)	800	2	A	200kA	200kA	65kA	1200	L	65kA	150kA	65kA
800, 1000 (Secure Enclosure)	800	2	B	200kA	200kA	65kA	1200	L	65kA	150kA	65kA
800, 1000 (Secure Enclosure)	1000	3	A	200kA	200kA	65kA	1200	L	65kA	150kA	65kA
800, 1000 (Secure Enclosure)	1000	3	B	200kA	200kA	65kA	1200	L	65kA	150kA	65kA
1200 (Secure Enclosure)	1200	2	A	200kA	200kA	85kA	1600-2000	L	85kA	85kA	85kA
1200 (Secure Enclosure)	1200	2	B	200kA	200kA	85kA	1600-2000	L	85kA	85kA	85kA
1200 (Secure Enclosure)	1200	3	A	200kA	200kA	85kA	1600-2000	L	85kA	85kA	85kA
1200 (Secure Enclosure)	1200	3	B	200kA	200kA	85kA	1600-2000	L	85kA	85kA	85kA
1600, 2000 (Secure Enclosure)	1600, 2000	2	A	200kA	200kA	85kA	2600-3000	L	100kA	100kA	100kA
1600, 2000 (Secure Enclosure)	1600, 2000	2	B	200kA	200kA	85kA	2600-3000	L	100kA	100kA	100kA
2600, 3000 (Secure Enclosure)	2600, 3000	3	A	200kA	200kA	125kA	4000	L	125kA	125kA	100kA
2600, 3000 (Secure Enclosure)	2600, 3000	3	B	200kA	200kA	125kA	4000	L	125kA	125kA	100kA

Notes on Withstand & Closing Ratings:

* Front connection only.
All units are RMS Symmetrical Amperes.
All Withstand and Closing Rating values are tested in accordance with UL 1008. See ASCO Publication 1128 for more information.
Application requirements may permit higher WCR for certain switch sizes.

Extended Warranties

Extended Warranties for Series 300 Transfer Switches (3ATS/3NTS/3ADTS/3NDTS):

1 Year Extension (Total of 3 Years)
2 Year Extension (Total of 4 Years)
3 Year Extension (Total of 5 Years)

Notes on Warranties: Standard warranty is 24 months from date of shipment. Extended warranty is in addition to the two years, for a total of 3, 4, or 5 years. Refer to Publication 3223 for warranty terms and conditions.

Contact Information

For more details, please contact customercare@ascopower.com

ASCO Power Technologies - Global Headquarters
160 Park Avenue
Florham Park, NJ 07932
Tel: 800 800 ASCO

Website: www.ascopower.com

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