ASCO Power Transfer Switch
Comparison Features
ATS Product Series
185
Comparison
Features
Intended Application
Ampere sizes available
Phases Available
Pole Counts Available
Low Voltage
Medium Voltage
300
Group 1
Residential
Commercial
Light Commercial Light Industrial
100 - 400
Single
30 - 3,000
300
Group G
4000
7000
Commercial
Light Industrial
Industrial
Mission Critical
Critical Power
30 - 3,000
Single or Three Single or Three
30 - 4,000
30 - 4,000
Single or Three
Single or Three
2
220 - 240V
2, 3 or 4
115 - 600V
2, 3 or 4
115 - 600V
2, 3 or 4
115 - 600V
2, 3 or 4
115 - 600V
N/A
N/A
N/A
N/A
5kV, 15kV
Yes
Yes
Yes
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Yes
Yes
Yes
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Yes
Yes
Yes
N/A
Yes
N/A
N/A
N/A
N/A
N/A
Yes
Yes
N/A
Yes
Yes
N/A
N/A
N/A
N/A
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
N/A
N/A
N/A
10-100 kA
10-125 kA
10kA -35kA
100 -200kA
N/A
22 -100kA
100 -200kA
N/A
22-100kA
100 -200kA
N/A
22-125kA
100-200kA
36-100kA
22-125kA
100-200kA
36-100kA
STD
STD
STD
Yes
Yes
N/A
N/A
Yes
Yes
N/A
N/A
Yes
N/A
Yes
Yes
N/A
Yes
Yes
Yes
Yes
Product Type
Open Transition Transfer Switch
Service Entrance Rated Transfer Switch
Power Transfer Load Center
Closed-Transition Transfer Switch
Delayed-Transition Transfer Switch
Soft Load Transfer
Bypass-Isolation Transfer Switch
Closed-Transition Bypass-Isolation TS
Delayed-Transition Bypass-Isolation TS
Soft Load Bypass-Isolation TS
Withstand and Close-On Ratings
WCR When Used With Any Circuit Breakers
WCR When Used With Specific Circuit Breakers
WCR when used with current limiting fuses
Short Time Withstand Rating
Neutral Configuration
Solid
Switched
Overlapping
Ground Termination
Comparison
ATS Product Series
185
300 Group1
300 GroupG
4000
7000
Voltage and Frequency Settings
Phase Selection
Pick up Normal Source Voltage
Drop out Normal Source Voltage
Pick up Emergency Source Voltage
Drop out Emergency Source Voltage
Frequency
Pick Up Emergency Source Frequency
Drop out Emergency Source Frequency
Normal Overvoltage Trip
Emergency Overvoltage Trip
Normal Overfrequency Trip
Emergency Overfrequency Trip
Pick up Normal Source Frequency
Drop out Normal Source Frequency
Normal & Emergency Voltage Unbalance
Single Phase
Single or Three Phase Single or Three Phase Single or Three Phase Single or Three Phase
198 Volts
154-187 Volts
198 Volts
165 Volts
50 or 60Hz
48 or 57Hz
90% or 95%
70% to 90%
90% Fixed
75% Fixed
50 or 60 Hz
95% Fixed
85 to 100%
70% to 98%
85 to 100%
70% to 98%
50 or 60 Hz
86 to100%
85 to 100%
70 to 98%
85 to 100%
70 to 98%
50 or 60 Hz
90 to 100%
85 to 100%
70 to 98%
85 to 100%
70 to 98%
50 or 60 Hz
90 to 100%
43 or 51Hz
N/A
N/A
N/A
N/A
85% Fixed
N/A
N/A
N/A
N/A
85 to 98%
102 to 115%
102 to 115%
101 to 110%
101 to 110%
85 to 98%
102 to 115%
102 to 115%
102 to 110%
102 to 110%
85 to 98%
102 to 115%
102 to 115%
102 to 110%
102 to 110%
N/A
N/A
N/A
N/A
N/A
N/A
86 to 100%
85 to 98%
N/A
90 to 100%
85 to 98%
Yes
90 to 100%
85 to 98%
Yes
0 to 6 Seconds
0 to 6 Seconds
7 Day
0 to 6 Seconds
0 to 60 Minutes
0 to 60 Minutes
0 to 60 Minutes
0 to 60 Minutes
Programmable
0 to 6 Seconds
0 to 60 Minutes
0 to 60 Minutes
0 to 60 Minutes
0 to 60 Minutes
Programmable
Time Delay Settings
Override Normal Source Momentary Outage
1 or 3 Seconds 1 or 3 Seconds
Transfer to Emergency
10 Seconds
0 to 5 Minutes
Re-transfer to Normal Utility Power Loss Mode
5 Minutes
1 Sec. to 30 Mins.
Engine Cool Down
2 or 5 Minutes
5 Minutes
Override Emergency Source Momentary Outage
4 Seconds
4 Seconds
Generator Exerciser
7 Day
7 Day
0 to 60 Minutes 59 Seconds
0 to 60 Minutes 59 Seconds
0 to 60 Minutes 59 Seconds
Indication and Controls
Load Connected to Normal
Yes
Yes
Yes
Yes
Yes
Load Connected to Emergency
Transfer Test Switch
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Terminals For Remote Transfer Control
STD
STD
STD
STD
STD
Bypass Time Delay Switch
Yes
N/A
N/A
N/A
Yes
Yes
Yes
STD
Yes
Yes
Yes
STD
Yes
Yes
Yes
Optional
Yes
Yes
Yes
Optional
Power Manager
N/A
N/A
N/A
N/A
Optional
Optional
Yes
Optional
Yes
Optional
Transfer Controls Lock Out
N/A
N/A
N/A
Yes
Optional
Normal Source Available
Emergency Source Available
Transfer Inhibit
In-Phase Monitor
Load Disconnect Contacts with Time Delay
Event Log
Enclosures
Type 1
Type 3R
Type 4
Type 4X
Type 12
Yes
Yes
N/A
N/A
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
N/A
Yes
N/A
Yes
Yes
Yes
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Limited
Expanded
Limited
Extensive
Connectivity
RS-485 Serial
Ethernet
Modbus
Monitoring and Control via ASCO Products
Optional Accessories
Optional
Emerson Network Power
ASCO Power Technologies,
50 Hanover Road, Florham Park, NJ, 07932
EmersonNetworkPower.com/ASCO
Field Kits Only Emerson, Emerson Network Power are trademarks
of Emerson Electric Co. or one of its affiliated companies.
©March, 2014 Emerson Electric Co.
Publication 3149 R8