Questions tagged [transfer-switch]

This is for transfer (generator) switches or interlocks, used with portable or hard-wired backup (standby) generators. Manual and automatic transfer switches are included, as well as breaker interlocks and inverter transfer systems.

Filter by
Sorted by
Tagged with
1
vote
1answer
26 views

Can I wire a 200amp auto transfer switch from one metered service to two 100amp panels?

I have one metered service feeding two 100 amp panels separately one to the house then one to the garage. Can I install a 22kw generator and use one transfer switch for both 100 amp panels?
0
votes
3answers
55 views

Determining generator loads

See related question here: Using portable generator with transfer switch I live on a property with 600 AMP service (2x200AMP service to home, 1x200AMP service to workshop / barn). The home and barn ...
0
votes
1answer
41 views

Using portable generator with transfer switch

See related question here: Determining generator loads I live on a property with 600 AMP service (2x200AMP service to home, 1x200AMP service to workshop / barn). The home and barn are new ...
0
votes
1answer
54 views

Installing a generator transfer switch on an ITE Pushmatic panel

I have purchased a transfer switch,the Reliance Controls Corporation 31406CRK 30 Amp 6-circuit. The panel in question is a ITE Pushmatic, like the one in the picture except it has two main breakers on ...
1
vote
1answer
39 views

Feeding single circuit from two different subpanels (with interlock)

I have a main panel and a critical loads sub-panel fed by a PV inverter + battery backup. I need to avoid overloading the normal capacity in the critical loads panel (50A), and I'm already at a ...
1
vote
2answers
98 views

setting up a secondary panel with generator (Wire Guidance needed)

I am attempting to gather the supplies needed to setup a secondary panel for a backup generator. The generator itself is a Westinghouse 7500 model that explicitly states that the neutral bonding has ...
0
votes
1answer
66 views

Generator Transfer Switch for 2 Panels

I'd like to install a Transfer Switch (10 circuits) from the Generator to the two panels I have. Each panel is rated at 200 amps. If I turn off the main breaker in one of them, the other panel still ...
1
vote
1answer
47 views

Recommendation for mounting transfer switch to vinyl sided exterior wall

I need to mount a Generac automatic transfer switch to my house beneath the meter base. The construction of the wall I need to mount to is (from outside inwards): 30 yr old vinyl siding (for which I ...
0
votes
0answers
32 views

Can I install 2 Reliance control pro Tran 2 transfer switch 10 circuit on same panel?

I believe I have a sub panel because there is a breaker at the meter to shut off power. There is also a separate neutral bar from the ground bar in my breaker box. Assuming I have that correct, onto ...
0
votes
1answer
76 views

Isolator switch for electric generator to change from bonded to floating neutral

I have an electric Power generator and have a manual transfer switch to use a Power generator when the utility power is out. So the electric power generator is used as is with bonded neutral when used ...
0
votes
1answer
29 views

Single pole breaker in Transfer Switch trips on transfer to GEN position every time but only on Master Bedroom circuit, 5 others OK

How can I use a single pole breaker in Transfer Switch to replace a Double Pole GFI breaker in box for bedroom lights and GFI Master Bathroom outlets? It trips every time I turn it on through transfer ...
1
vote
2answers
163 views

Must a generator be connected permanently to the transfer switch?

I will soon be purchasing a 15K watt, 50A generator and an exterior 200A on/off/on transfer switch. Nothing is an issues except for connecting generator to transfer switch cabinet. Must a male/female ...
0
votes
1answer
97 views

Installing a transfer switch

I too have a Generac 5500 Generator. It is safely positioned on the side of my home, a double - wide on block foundation , on a concrete pad. I have a super clean (even vacuumed) crawl space. I want ...
5
votes
1answer
439 views

8500 W generator with L14-30 plug.. How to access full capacity for house?

As an emergency generator I purchased a Wpro8500 from Westinghouse. My house has a transfer switch and the wiring supports 240V 50A. The generator has a few outputs, but the 240V is a 30A. This limits ...
2
votes
1answer
252 views

Connecting 240 volt generator to Main Panel

I read previous posts that explained that the Sub Panel has a separate connection for ground and separate for neutral, while the Main Panel does not separate the ground & neutral - this is exactly ...
-1
votes
2answers
106 views

Does the amp size have to match?

My home has three bathrooms in it and the outlets for all three are combined off one 20 amp breaker in the panel. Do I have to use one of the 20 amp breakers on the transfer switch or can I use one of ...
0
votes
0answers
20 views

Transfer switch worked but only to half the house, used to work fine. Any ideas? Thanks

We have a generac 20k generator and auto transfer switch. It has worked well for 3 years, but now when the power goes out it only switches over half the house. Any suggestions on troubleshooting would ...
3
votes
1answer
88 views

1 generator + multiple ATSes: how can I install this to Code without unobtanium?

I want to supply standby power to both units in a separately metered duplex from a single permanently installed generator. The cheapest way to do this is a pair of bog-standard ATSes and a smallish ...
0
votes
2answers
336 views

Ground wires: Do I have this right?

I have 200A load center with a solid bare #6 ground wire tied to a ground rod. Ground/Neutral are bonded in the box. Then run stranded #6 (does it have to bare?) to the 100A auto transfer switch. ...
0
votes
2answers
144 views

Breaker Feeding a Transfer Switch

I have 200A service, but I want to add a whole house generator (GENERAC 17k) that has a 100A transfer switch. I plan to use a seperate 100A load center after the transfer switch for the backed up ...
0
votes
1answer
108 views

200A service to 100A transfer switch?

I have 200A service but, I want to add a whole house generator (GENERAC 17k), but my transfer switch is only 100A. Can I add a 200A subpanel (NEMA 3R 12-space with 200A main) on the outside of the ...
2
votes
1answer
197 views

I have a buried wire for a generator in my shed. Is there a safe way to reverse the feed to power the shed?

My current setup: Main panel has 60A 240 breaker that feeds Generator subpanel which has 10 circuits on it. The Gen Feed to the subpanel comes from buried 10-3 in my shed. That works well for running ...
1
vote
1answer
674 views

Manual Transfer Switch to power Main panel and Sub panel circuits

I had installed a Reliance model 31410CRK manual transfer switch, which has 10 individual circuits. I happen to have a Main panel, and a Sub panel which are a few feet apart. The Sub panel was ...
0
votes
1answer
58 views

can an indoor Transfer Switch be used on the other side of the wall as an outdoor service entrance and main panel?

Can an indoor Transfer Switch be used on the other side of the wall as an outdoor service entrance and main panel? The concept is: The outdoor service entrance is wired through the wall to the SE ...
0
votes
2answers
1k views

Two Breaker panels, one transfer switch?

I have two breaker "panels", one is a 200 amp panel for everything in the house, and a separate one (with a different meter) that is just for my electric cold water heater, right next to the other ...
0
votes
1answer
958 views

5500 Watt / 30 amp generator feeding 5000 Watt 20 amp manual transfer switch [closed]

I have a manual transfer switch that was installed approximately 10+ years ago that is rated 5000 Watt and 20 amp max input. The old generator died and was replaced with a Generac GP5500 / 6875 model....
1
vote
2answers
240 views

How to figure out max Watt rating for transfer switch?

We bought a home with a transfer switch installed (seems old, can't find any documentation for it anywhere on the internet). I'm trying to buy an appropriate generator, but am not sure how high of a ...
0
votes
1answer
65 views

What Automatic Transfer Switch can switch between parallel sources without a priority setting so as to run a well pump from either of two homes?

We have two homes sharing a single well. The other homeowner and I want to change our water system so that we each have our own Pressure Tank and we can each run the well pump with power from our own ...
1
vote
1answer
120 views

Add new main load center for EV charging

I need to add an EV level 2 charger. Among other reasons, I just overloaded the garage circuit, frying a GFCI outlet when charging my BMW i3 and golf cart at the same time. I'd like the wiring to be ...
1
vote
1answer
407 views

Add sub panel from transfer switch

I'd like to add a subpanel to add a couple circuits (Extra inverter Mini Split ACs, well pump, etc.) but my main interior panel is full and recessed in concrete. I added a manual transfer switch from ...
0
votes
2answers
1k views

100 amp transfer switch for 125 amp home

A local electrical shop tried to sell me a GE 100 amp transfer switch. My main electrical panel breaker is 125 amps. Would this be ok?
1
vote
1answer
3k views

Electrical question on floating neutral generator for emergency use

There is tons of information on "bonded neutral" and "floating neutral" generator wiring to transfer switch. However, I have one question I cannot find the answer. I recently bought a Reliance ...
2
votes
1answer
363 views

Bring portable generator in through automatic transfer switch

I currently have a portable generator, an inlet, and an interlock on the main panel to backfeed the panel. I am moving over to an automatic transfer switch with a standby generator. However, as a ...
5
votes
3answers
6k views

Generator tripping GFCI breakers in main panel

I recently had some electrical work done on my home to bring it up to code - there was no GFCI protection in the kitchen or bathroom when we bought the house, so our electrician fitted GFCI breakers ...
0
votes
1answer
94 views

Can a transfer switch be powered by two separate generators?

I have two portable generators, a Honda 2000W and a cheaper Pulsar 2000W as a backup. They're very similar in terms of overall construction, and I wanted to see if I could combine them to power our ...
0
votes
0answers
640 views

Troubleshoot Reliance transfer switch ACE side

When switched to LINE all circuits work. When switched to GEN, only circuits BDF work. ACE goes dead. I tested ACE with a volt meter and a clamp multimeter. Circuit A, for example draws 3A when on ...
0
votes
2answers
2k views

Sharing my 240V 30amp between two dryers

We are running a clothes dryer in the lower level of our home. We are installing a washer and dryer on our main level. Can I split the power feed between both dryers and what can I use and where can ...
1
vote
1answer
227 views

Testing a furnace transfer switch, watt meter shows extremely low usage

I just installed a Reliance furnace transfer switch model TF151W to my main circuit panel. I tried to test it by running an extension cord from another outlet to the transfer switch. I put the P3 ...
1
vote
2answers
102 views

connecting to a transfer switch

I have a 35KW Wacker diesel generator. It has 3 x 240V 3 prong - 10, 20 and 30 amp service. it also has a 4 wire 3 prong 125/250 locking (center ground) outlets of 50 amp. My question is how do I ...
1
vote
2answers
142 views

What's the best way to connect two separate generators to a well pump?

I need to have a generator run 240 volts to a well pump, and want it switched off when the generator is started. I also want a second (back up) generator that can be switched on if/when the main ...
2
votes
2answers
960 views

Solar panels and batteries as primary, grid as backup with auto transfer switch [closed]

I've been toying around with this idea and I'm not sure if it's feasible. I live in an area where the power company has recently adjusted rates to make grid-tied net metering rooftop solar ...
1
vote
1answer
886 views

Can I use a switch to toggle the neutral bonding on a generator?

I am in the process of attaching a 2-Pole transfer switch to my breaker panel and powering it by a 7500W generator. The generator is neutral-bonded-to-ground. I understand I have to disconnect this in ...
4
votes
2answers
3k views

Half of my lights and oulets are not working after heavy winds?

We have solar panels and mains power. Last night was very windy; we heard quite a few bangs from outside and thought it might be the wires getting knocked together. Woke up this morning and we have ...
2
votes
1answer
1k views

manual transfer switch - 2 main panels

I have 2 main panels, each 150 amp, each connected to meter. I'm installing a Reliance transfer switch (model 3006HDK). All instructions show how to wire circuits from a single main panel. Can I ...
4
votes
1answer
2k views

How should I hook up my generator to a manual transfer switch?

I have a couple of questions about hooking up a generator to a manual transfer switch and I'm really hoping somebody with knowledge can help guide me here. The idea is I will have an exterior weather-...
0
votes
2answers
3k views

Do unswitched neutral and ground wires need to pass through a transfer switch?

I'm installing a manual transfer switch to feed a 240V subpanel from either generator or the main panel. No devices other than the main panel are bonded. Since the neutral is not switched, can I ...
2
votes
4answers
20k views

What do I do with the neutral and ground when wiring a transfer switch?

I know there are a lot of questions about wiring a generator to a home electrical panel, but I can't find the answer to the questions that I have. I would like to wire a generator that has the ...