Product Description

The ASCO 185SE Residential Service Entrance Power Transfer Switch combines the series 185 automatic transfer switch with circuit breaker disconnect device for the normal source. An additional circuit breaker for the emergency source in optional. In addition, main jumper is provided to connect both the neutral and ground conductors in accordance with NEC requirements for service entrance equipment. For use on Optional Standby Systems as defined by NFPA 70: National Electrical Code (NEC).

Service entrance rated transfer switches are generally installed at locations that have a single utility feed and a single emergency power source.

The ASCO 185SE Service Entrance Automatic Transfer Switch uses the same reliable transfer switching mechanism and controller as the Series 185 product platform, and also includes a circuit breaker as a utility source disconnect device.
Product Features
  • Suitable for use as service entrance equipment
  • The ASCO Series 185SE is listed to UL1008 for Transfer Switching Equipment, and meets all NEC requirements for service entrance equipment.
  • Size rating available: 200 and 400 amps
  • Circuit Breaker disconnect on the normal source for isolation of transfer switch and other electrical equipment.
  • Bonding jumper on Neutral and Ground.
  • Silver plated copper ground and neutral bus.
  • Solderless screw type terminals for External Power Connections
  • Available in either UL approved Type 1 or Type 3R enclosure
  • Available with a solid neutral
  • Optional Strip Heater kit for Type 3R application requirements.

Series 185SE AIC Rating
Switch Rating
AIC Rating @ 240V
200
10,000
400
42,0001
NOTE: 1 Specific breaker rating
Series 185SE External Power Connection
Switch Rating
Range of Cu Wire Sizes
200
(1) #14 to 4/0 AWG
400
(2) 1/0 AWG to 250MCM
or
(1) #4 AWG to 600MCM
ASCO Series 185SE Residential Service Entrance Power Transfer Switch in a Type 3R enclosure
Dimensional Data
Switch
Rating
Enclosure1
Poles
Neutral
Code
Width
inches (mm)
Height
inches (mm)
Depth
inches (mm)
Weight
lb (kg)
200
Type 1 Indoor
2
Std
16.3 (414)
36.4 (925)
6.1 (155)
112 (51)
200
Type 3R Secured
2
Std
16.3 (414)
37.4 (950)
8.1 (206)
118 (54)
400
Type 1 Indoor
2
Std
36.2 (920)
47.2 (1200)
8.1 (206)
376 (171)
400
Type 3R Secured
2
Std
36.2 (920)
48.3 (1227)
8.1 (206)
428 (195)
NOTE: 1 Dimensional data is approximate and subject to change.
Certified dimensions available upon request.
Ordering Information
 1AUS   +           A           +       2       +      200      +         F         +      4       +        C
Product
Neutral
Code
Phase
Poles
Amperes
Continuous
Rating
Voltage
Code
Controller
Enclosure
1AUS
A - Solid Neutral
2 pole
1ø
200
F
240
4
C
Type 1
(Standard)
400
M
Type 3R
Secured
NOTE: Specify strip heater kit K732212-003 for type 3R outdoor application requirements when temperatures below 32°F can be experienced to help prevent condensation and freezing of this condensation. This is particularly important when environmental enclosures (Type 3R) are ordered for installation outdoors.
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.

Find your local ASCO Representative.

Ask us for Additional Information.

Call us at 1-800-800-ASCO (2726)
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Florham Park, NJ 07932