Find a Transfer Switch

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Find Transfer Switches
Brand Series Operator Enclosure Encl. Type Transition Type Amp 1 Amp 2 Poles
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We will meet or beat any other real transfer switch prices. Send us a copy of your quote and give us a chance to compete.
We will give you the best price we can as long as we make a fair profit.
 
We can supply you with any ASCO automatic or manual Transfer Switch, in ANY SERIES (including ASCO 7000 Series,  all transitional and delayed switches) at the lowest prices in the United States!
We are the principal supplier to the Federal Government on our GSA schedule.
We can provide a substitute for any GE Zenith, Cuttler Hammer, Generac, Kohler, Caterpillar or any other brand of switches at a competitive price.
 

TRANSFER SWITCH FINDER UTILITY

Transfer Switches, How do they work and how do is size them?

Transfer Switches: The automatic transfer switch monitors utility and generator power. When utility power fails or is unsatisfactory, the transfer switch control starts the generator set, checks the generator speed and voltage output and transfers the load to the generator set. When utility power is restored the transfer switch automatically transfers back to utility power. The generator is allowed to cool down for a short period and then shuts down. The system instantly resets itself and is ready for the next power interruption. No action is required by the user.

You must select a transfer switch that is the same size in amps (or larger) then your building service or sub-panel. The transfer switch must also be the same size in amps (or larger) than the maximum output of the generator you select. Example: If you have a 12 kW generator operating at 120 VAC single phase, (100 Amps) and a 200 amp building service you need a 200 Amp transfer switch or you must install a 100 Amp sub-panel. Transfer switches should be installed by a licensed electrician. For more information on transfer switches please see About Transfer Switches.  Select a transfer switch to go with your generator from the drop down option list on this page under Product Options. The transfer switches shown are compatible with this generator. If you need additional transfer switch poles, auxiliary contacts or communications features see ASCO Transfer Switches. For special needs, volume purchases and other questions, call your GeneratorJoe sales representative at 707 542-2224 for assistance. All ASCO switches are shipped FREE when you purchase the switch with a generator.

Find Transfer Switch Utility, How does this utility work?

This utility allows you to search our entire website for transfer switches of all types, amperages, poles and enclosure types. Place your mouse on each window and set that window for the value for that specification.

When you click Search Now, a list will appear showing you all the switches available and you can then select from the available switches. We show GE Zenith numbers so you can convert from GE Zenith to ASCO tramsfer switches.
 
Once you find a switch you like click on "More Info" and you will be transported to the page where you can add accessories, select the voltage and get a shipping quote. You can click BUY on the page you are sent to in order to make your purchase online in real time.  
If you need assistance in finding the switch that you need please call us at (707) 542-2224. We can write your order while you are on the phone.
 

We carry the largest online selection of indoor and outdoor, automatic and manual, transitional and special transfer switches.

 We carry the full line of ASCO switches, the world leader of quality transfer switches for all generator installations.  Please note if you need delayed or closed transition, we have prices online for all ASCO switches.
If you need bypass with open or closed or delayed transition, we have most prices online. We can also quote you any ASCO 7000 series switches including SoftLoad and Service Entrance types on request, in any configuration you desire, just ask!

RV transfer switches DO NOT appear on this list. Go to RV Switches to see what we have available for RV's and boats.

If you need assistance in finding the switch that you need please call us at (707) 542-2224. We are here to help.

ELECTRICIANS, DESIGNERS, CONTRACTORS: If you purchase multiple switches from us we can arrange lower or free shipping, volume discounts and more. Let us be your switch supplier and we will save you money.

 

Wiring Tips 

Single Phase Switches:

2 poles 3 wire - The switch is single phase 3 wire, with the 3rd wire being a solid neutral.

 

Three Phase Switches:

3 poles 3 wire - The switch is three phase 3 wire, with no neutral.

3 poles 4 wire - The switch is three phase 4 wire, with a solid neutral.

4 poles 4 wire - The switch is three phase 4 wire, with either a switched neutral or overlapping neutral.

 

VOLTAGE: The X in the part number is the voltage. Select a voltage from the voltage key on the chart below. If the part number has no X   state the voltage at the end of the part number. You can click INFO/BUY next to the switch you want and the system will go to the order page. you can select the voltage on that page and click BUY to place the order.

Order Guides & Factory Brochure Quick Index

 

Series 185, 300, 300L, 300SE, 386, 386SE, 4000, 7000, 7000SL and 7000SE

Automatic & Manual, Open & Enclosed, Indoor and Outdoor with Standard (Open), Delayed, Closed, Delayed with Bypass, Closed with Bypass Transitions.

Service Entrance and Nema 1, 3R, 4, 4X, 7 and 12 enclosures. Secure and Non-Secure types.
 

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We Provide Replacements For All

GE Zenith Transfer Switch Ordering Guide

Series ZTX,  ZTG,  ZTG-SE & ZTG-DSE, ZTS , ZT3000 and TSU

Automatic & Manual, Open & Enclosed, Indoor and Outdoor with Standard (Open), Delayed, Closed, Delayed with Bypass, Closed with Bypass Transitions.

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If you cannot find the switch you need, ask GeneratorJoe ! 

ASCO and GE Zenith provide engineering support for any application you may have no matter how complex.

If we don't know which to use we will contact our factory engineer representative and get you the answer you need, free of charge.

We will meet or beat any other real transfer switch prices. Send us a copy of your quote and give us a chance to compete. We will give you the best price we can as long as we make a fair profit. .
For questions, support or to discuss your needs write joe@generatorjoe.net or call us at 707 542-2224 
 8 A.M. to 6 P.M. Pacific Time.

GE Zenith Voltage Chart

  ASCO Voltage Chart
A B VOLTAGE PHASE WIRES HERTZ   A VOLTAGE
1 0 120 1 2 60   A 115
2 0 120/240 1 3 60   B 120
2 1 120/208 1 3 60   C 208
3 0 240 3 3 60   D 220
3 1 208 3 3 60   E 230
3 2 220 3 3 50   F 240
3 3 120/240 3 4 50   H 380
3 4 110/220 3 4 60   J 400
3 5 139/240 3 4 60   K 415
3 8 120/240 3 4 60   L 440
4 0 120/208 3 4 60   M 460
4 1 127/220 3 4 60   N 480
4 2 127/220 3 4 50   P 550
5 0 480 3 3 60   Q 575
5 1 440 3 3 60   R 600
5 2 440 3 3 50     Other voltages available 
5 5 460 1 3 50      
5 7 480 1 2 60      
5 8 254/440 3 4 60      
7 0 277/480 3 4 60      
7 1 277 1 2 60      
7 4 266/460 3 4 60      
7 5 460 3 3 60      
8 2 380 1 2 50      
9 0 240/416 3 4 60      
9 1 220/380 3 4 60      
9 2 220/380 3 4 50      
9 3 240/416 3 4 50      
9 7 380 3 3 60