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ASCO Automatic Transfer Switch Series Feature Comparison

Feature Comparison

185 300 4000 7000
185 Series Transfer Switch

300 Series Transfer Switch

4000 Series Transfer Switch 7000 Series Transfer Switch
Intended Application
Residential
Light Commercial
Commercial
Light Industrial
Industrial
Mission Critical
Critical Power
Ampere sizes available
100, 200, 230
30 - 3,000
30 - 4,000
30 - 4,000
Low Voltage
220 - 240V
115 - 600V
115 - 600V
115 - 600V
Medium Voltage
N/A
N/A
N/A
5kV, 15kV
Product Type 185 300 4000 7000
Open Transition Transfer Switch
Yes
Yes
Yes
Yes
Service Entrance Rated Transfer Switch
Yes
Yes
Yes
Yes
Power Transfer Load Center
Yes
Yes
N/A
Yes
Closed-Transition Transfer Switch
N/A
N/A
Yes
Yes
Delayed-Transition Transfer Switch
N/A
N/A
Yes
Yes
Soft Load Transfer
N/A
N/A
N/A
Yes
Bypass-Isolation transfer Switch
N/A
N/A
N/A
Yes
Closed-Transition Bypass-Isolation TS
N/A
N/A
N/A
Yes
Delayed-Transition Bypass-Isolation TS
N/A
N/A
N/A
Yes
Soft Load Bypass-Isolation TS
N/A
N/A
N/A
Yes
Withstand and Close-On Ratings 185 300 4000 7000
WCR when used with any circuit breaker
10kA
N/A
10-100kA
10-100kA
WCR when used with specific circuit breakers
10kA
22-100kA
22-100kA
22-100kA
WCR when used with current limiting fuses
100-200kA
100-200kA
100-200kA
100-200kA
Withstand Short Time Rating
N/A
N/A
36-65kA
36-65kA
Neutral Configuration 185 300 4000 7000
Solid
Std.
Std.
Yes
Yes
Switched
N/A
Yes
Yes
Yes
Overlapped
N/A
N/A
N/A
Yes
Voltage and Frequency Settings 185 300 4000 7000
Phase Selection
Single Phase
Single or Three Phase
Single or Three Phase
Single or Three Phase
Pick up Normal Source Voltage
204 Volts
90% or 95%
85 to 100%
85 to 100%
Drop out Normal Source Voltage
180 Volts
70% to 90%
70 to 98%
70 to 98%
Pick up Emergency Source Voltage
204 Volts
90% Fixed
85 to 100%
85 to 100%
Drop out Emergency Source Voltage
180 Volts
75% Fixed
70 to 98%
70 to 98%
Frequency
60Hz
50 or 60 Hz
50 or 60 Hz
50 or 60 Hz
Pick up Emergency Source Frequency
57Hz
95% Fixed
90 to 100%
90 to 100%
Drop out Emergency Source Frequency
54Hz
85% Fixed
85 to 98%
85 to 98%
Normal Over Voltage Trip
N/A
N/A
102 to 115%
102 to 115%
Emergency Over Voltage Trip
N/A
N/A
102 to 115%
102 to 115%
Normal Over Frequency Trip
N/A
N/A
102 to 115%
102 to 115%
Emergency Over Frequency Trip
N/A
N/A
102 to 115%
102 to 115%
Pick up Normal Source Frequency
N/A
N/A
90 to 100%
90 to 100%
Drop out Normal Source Frequency
N/A
N/A
85 to 98%
85 to 98%
Normal & Emergency Voltage Unbalance
N/A
N/A
Yes
Yes
Time Delay Settings 185 300 4000 7000
Override Normal Source Momentary Outage
3 Seconds
1 or 3 Seconds
0 to 6 Seconds
0 to 6 Seconds
Transfer to Emergency
15 Seconds
0 or 5 Minutes
0 to 60 Minutes
0 to 60 Minutes
Re-transfer to Normal Utility Power Loss Mode
5 Minutes
1 Sec. to 30 Mins.
0 to 60 Minutes
0 to 60 Minutes
Engine Cool Down
1 Minute
5 Minutes
0 to 60 Minutes
0 to 60 Minutes
Override Emergency Source Momentary Outage
15 Seconds
4 Seconds
0 to 60 Minutes
0 to 60 Minutes
Emergency Exerciser
14 Day
7 Day
Programmable
Programmable
Indication and Controls 165 300 4000 7000
Load Connected to Normal
Yes
Yes
Yes
Yes
Load Connected to Emergency
Yes
Yes
Yes
Yes
Normal Source Available
Yes
Yes
Yes
Yes
Emergency Source Available
Yes
Yes
Yes
Yes
Transfer Test Switch
Yes
Yes
Yes
Yes
Terminals for Remote Transfer Control
N/A
Std.
Std.
Std.
By-pass Time Delay
Yes
Yes
Yes
Yes
Transfer Inhibit
N/A
Yes
Yes
Yes
In-Phase Monitor
N/A
Yes
Yes
Yes
Load Disconnect Contacts with Time Delay
N/A
Std.
Optional
Optional
Event Log
N/A
N/A
Yes
Yes
Power Manager
N/A
N/A
Optional
Optional
Transfer Controls Lock Out
N/A
N/A
Yes
Optional
Enclosures 185 300 4000 7000
Type 1
Yes
Yes
Yes
Yes
Type 3R
Yes
Yes
Yes
Yes
Type 4
N/A
Yes
Yes
Yes
Type 4X
N/A
Yes
Yes
Yes
Type 12
N/A
Yes
Yes
Yes
Connectivity 185 300 4000 7000
RS-485 Serial
N/A
Yes
Yes
Yes
Ethernet
N/A
Yes
Yes
Yes
Modbus®
N/A
N/A
Yes
Yes
Monitoring and Control via ASCO® Products
N/A
Yes
Yes
Yes
Accessories 185 300 4000 7000
Optional Accessories
Limited
Limited
Limited
Extensive

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