Asco Automatic Transfer Switches
NOW IN STOCK! – 200 and 400 amperes
A 200 amp Single phase ASCO Auto Transfer Switch
ONLY $2,150 + Tax
A 400 amp Single phase ASCO Auto Transfer Switch
ONLY $2,995 + Tax
Reliable Power Transfer with Asco Automatic Transfer Switches
Asco New Look Controller
Rest assured, you can rely on one of the best automatic transfer switches on the market for the transfer of business-critical loads to emergency sources. Browse through Prima’s full line of industry-leading automatic transfer switches and non-automatic transfer switches to learn more about how an Asco automatic transfer switch can provide you with a reliable power source.
In our years of experience, we know that you need a transfer switch that you can rely on for years to come, hence why we stock the Asco range of Automatic Transfer Switches. ASCO automatic transfer switches and non-automatic transfer switches are applicable in many environments, ranging from residential, agricultural and light commercial applications to the critical power needs of healthcare, financial and data center facilities.
Get the advantage of having an emergency power system equipped by best-in-class technology with ASCO transfer switches. ASCO 7000 Series Power Transfer Switches are available in bypass-isolation configurations to allow testing testing of the switch without interrupting power to the load. When an integrated solution is required, ASCO Power Transfer Load Centers are available in configurations that can include a transfer switch load panel, circuit breakers and voltage surge suppression pre-wired in a compact package.
ComparisonFeatures |
ATS Product Series |
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Intended Application |
ResidentialLight Commercial |
CommercialLight Industrial |
Industrial |
Mission CriticalCritical Power |
| Ampere sizes available | 100 - 400 | 30 - 3,000 | 30 - 4,000 | 30 - 4,000 |
| Phases Available | Single | Single or Three | Single or Three | Single or Three |
| Pole Counts Available | 2 | 2, 3 or 4 | 2, 3 or 4 | 2, 3 or 4 |
| Low Voltage | 220 - 240V | 115 - 600V | 115 - 600V | 115 - 600kV |
| Medium Voltage | N/A | N/A | N/A | 5kV, 15kV |
Product Type |
- | - | - | - |
| 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 |
- | - | - | - |
| WCR When Used With Any Circuit Breakers | N/A | N/A | 10-100 kA | 10-100 kA |
| WCR When Used With Specific Circuit Breakers | 10kA -35kA | 22-100kA | 22-100kA | 22-100kA |
| WCR when used with current limiting fuses | 100-200kA | 100-200kA | 100-200kA | 100-200kA |
| Short Time Withstand Rating | N/A | N/A | 36-65kA | 36-65kA |
Neutral Configuration |
- | - | - | - |
| Solid | STD | STD | Yes | Yes |
| Switched | N/A | Yes | Yes | Yes |
| Overlapping | N/A | N/A | N/A | Yes |
Voltage and Frequency Settings |
- | - | - | - |
| Phase Selection | Single Phase | Single or Three Phase | Single or Three Phase | Single or Three Phase |
| Pick up Normal Source Voltage | 198 Volts | 90% or 95% | 85 to 100% | 85 to 100% |
| Drop out Normal Source Voltage | 154-187 Volts | 70% to 90% | 70 to 98% | 70 to 98% |
| Pick up Emergency Source Voltage | 198 Volts | 90% Fixed | 85 to 100% | 85 to 100% |
| Drop out Emergency Source Voltage | 165 Volts | 75% Fixed | 70 to 98% | 70 to 98% |
| Frequency | 50 or 60Hz | 50 or 60 Hz | 50 or 60 Hz | 50 or 60 Hz |
| Pick Up Emergency Source Frequency | 48 or 57Hz | 95% Fixed | 90 to 100% | 90 to 100% |
| Drop out Emergency Source Frequency | 43 or 51Hz | 85% Fixed | 85 to 98% | 85 to 98% |
| Normal Overvoltage Trip | N/A | N/A | 102 to 115% | 102 to 115% |
| Emergency Overvoltage Trip | N/A | N/A | 102 to 115% | 102 to 115% |
| Normal Overfrequency Trip | N/A | N/A | 102 to 110% | 102 to 110% |
| Emergency Overfrequency Trip | N/A | N/A | 102 to 110% | 102 to 110% |
| 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 |
- | - | - | - |
| Override Normal Source Momentary Outage | 1 or 3 Seconds | 1 or 3 Seconds | 0 to 6 Seconds | 0 to 6 Seconds |
| Transfer to Emergency | 10 Seconds | 0 to 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 | 2 or 5 Minutes | 5 Minutes | 0 to 60 Minutes | 0 to 60 Minutes |
| Override Emergency Source Momentary Outage | 4 Seconds | 4 Seconds | 0 to 60 Minutes | 0 to 60 Minutes |
| Generator Exerciser | 7 Day | 7 Day | Programmable | Programmable |
Indication and Controls |
- | - | - | - |
| 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 | STD | STD | STD | STD |
| Bypass Time Delay Switch | 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 |
- | - | - | - |
| 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 |
- | - | - | - |
| RS-485 Serial | N/A | Yes | Yes | Yes |
| Ethernet | Yes | Yes | Yes | Yes |
| Modbus | N/A | N/A | Yes | Yes |
| Monitoring and Control via ASCO Products | Yes | Yes | Yes | Yes |
Optional Accessories |
- | - | - | - |
| Optional | Field Kits Only | Limited | Limited | Extensive |
