Skip to content
PROMO CODE: FREESHIP for free economy shipping w/orders $49+
CODE: FREESHIP for free economy shipping w/orders $49+
ISO-1000 isolation 1000VA; input 117VAC

Isolation Transformers

Primary Voltage Rating: 120VAC @ 50/60Hz

Power Output Ratings available:

  • 300 VA
  • 500 VA
  • 1000 VA

Isolation transformers commonly are used to:

  1. protect users from faulty equipment
  2. enable safe and accurate measurements
  3. avoid ground loops
  4. physically separate one part of an electrical system from another
  5. for sensitive equipment such oscilloscope, amplifiers, or medical equipment
     

Filters

$
$
Isolation Transformer, 120VAC Input Voltage; 117 to 124VAC Output Voltage @ 300 watts max; Part # ISO-300 - AC-DC PowerShack
Save 24% Save %
$99.00
$99.00 - $99.00
$99.00
$75.00
$75.00 - $75.00
$75.00

300VA Isolation Transformer, 117VAC to 117VAC

PHC Enterprise
5+ in stock

Part #: ISO-300 Input Voltage: 117VAC  Output Voltage: 117VAC ISOLATED Max Power Rating: 300VA 3 Amp fuse protection: 5mm x 20mm (fast blow); Par...

View full details
$99.00
$99.00 - $99.00
$99.00
$75.00
$75.00 - $75.00
$75.00
Save 24% Save %
Isolation Transformer, 120VAC Input Voltage; 117 to 124VAC Output Voltage @ 500 watts max; Part # ISO-500 - AC-DC PowerShack
Isolation Transformer, 120VAC Input Voltage; 117 to 124VAC Output Voltage @ 500 watts max; Part # ISO-500 - AC-DC PowerShack Save 22% Save %
$129.00
$129.00 - $129.00
$129.00
$100.00
$100.00 - $100.00
$100.00

500VA Isolation Transformer, 117VAC to 117VAC

PHC Enterprise, Inc.
5+ in stock

Part #: ISO-500 Input Voltage: 117VAC  Output Voltage: 117VAC ISOLATED Max Power Rating: 500VA 5 Amp fuse protection: 5mm x 20mm (fast blow) Part...

View full details
$129.00
$129.00 - $129.00
$129.00
$100.00
$100.00 - $100.00
$100.00
Save 22% Save %
1000VA Isolation Transformer 117VAC to 117VAC
1000VA Isolation Transformer 117VAC to 117VAC Save 20% Save %
$199.99
$199.99 - $199.99
$199.99
$160.00
$160.00 - $160.00
$160.00

1000VA Isolation Transformer, 117VAC to 117VAC

PHC Enterprise
5+ in stock

Part #: ISO-1000 Input Voltage: 117VAC  Output Voltage: 117VAC ISOLATED Max Power Rating: 1000VA 10 Amp fuse protection: 5mm x 20mm (fast blow) P...

View full details
$199.99
$199.99 - $199.99
$199.99
$160.00
$160.00 - $160.00
$160.00
Save 20% Save %
Variable Transformer 2 Amp (200 Watts); 0~40VAC Output w/ISOLATION; Part # SC-2T - AC-DC PowerShack
Variable Transformer 2 Amp (200 Watts); 0~40VAC Output w/ISOLATION; Part # SC-2T - AC-DC PowerShack Save 13% Save %
$75.00
$75.00 - $75.00
$75.00
$65.00
$65.00 - $65.00
$65.00

Variable Transformer 2 Amp (200 Watts); 0~37VAC Output w/ISOLATION

PHC Enterprise, Inc.
5+ in stock

Part #: SC-2T Input Voltage: 117VAC @ 50/60Hz Output Voltage: 0~37VAC only Power Rating: 200VA With Isolation, 2-pin polarized AC power cord, no ...

View full details
$75.00
$75.00 - $75.00
$75.00
$65.00
$65.00 - $65.00
$65.00
Save 13% Save %
Variable Transformer (NEW) 10 Amp (1000 Watts); 0~130VAC Output w/ISOLATION & LED Volt Meter - AC-DC PowerShack
Variable Transformer (NEW) 10 Amp (1000 Watts); 0~130VAC Output w/ISOLATION & LED Volt Meter - AC-DC PowerShack
Save 8% Save %
$205.00
$205.00 - $205.00
$205.00
$188.00
$188.00 - $188.00
$188.00

Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output ISOLATION & LCD Volt Meter

PHC Enterprise, Inc.
5+ in stock

Part #: SC-10T-2 Input Voltage: 117VAC @ 50/60Hz Output Voltage: 0~130VAC Power Rating: 1000VA Dimensions: 9.5”(L) x 6.9”(W) x 7.48”(H) With Iso...

View full details
$205.00
$205.00 - $205.00
$205.00
$188.00
$188.00 - $188.00
$188.00
Save 8% Save %

Let customers speak for us

from 149 reviews
15.0 AMP AGC FAST BLOW FUSE 6x32mm 5-pack; Part # AGC-15A-5
AGC-15A-5

Exact replacement for my blown fuse back up and running. Fast shipping.

John Pontow
15.0 AMP AGC FAST BLOW FUSE 6x32mm 5-pack; Part # AGC-15A-5
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
Always outstanding

They had exactly what I needed to keep my star wars ornament working
Thanks guys

mike stronsky
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output
Various Variacs

Works well. Beautiful construction.Great job on the business end also! Bob Gatts

Bob Gatts
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output
A Great Variac At A Great Price!

I've been considering getting a variable output isolation transformer for quite a few years, but I always assumed that they were expensive. When I purchased a Japanese market synthesizer (100 volts AC power requirements), I needed a step-down transformer. During my search, I came across this little gem at a very surprisingly reasonable price. The reviews were good, so I bought it.

It was shipped right away, and arrived within 2 days. It's a wonderful unit, and it works perfectly!

I would highly recommend that AC-DC PowerShack be checked out if you're looking for this or any other product they carry. You won't be disappointed!

Steve Rand
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output
DC Barrel Plug Adapter to 5 x 3.4mm with center pin @ 1mm plug from 2.1 x 5.5mm
Great adapter!

I used this adapter in combination with a USB C to 2.1mm x 5.5mm to create a USB C 12v adapter for my equipment. Works great! Now I don't have to be tethered to an extension cord while I work.

Fit is perfect, quality is decent. Couldn't ask for more.

Carl Masnec
DC Barrel Plug Adapter to 5 x 3.4mm with center pin @ 1mm plug from 2.1 x 5.5mm
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm (+) center polarity
Ac/DC adaptor

Quick and easy buy. Shipping was fast would recommend buying from them.

Ken Boyenga
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm (+) center polarity
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm

Good value!

Tony Danek
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm

All good works great thank you

Dennis Brooks
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm NEGATIVE center polarity

Good quality. Very happy with my purchase

Eddie Luna
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm NEGATIVE center polarity
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
Worked oerfectly

Exactly as ordered. Powered Christmas display of moving ice skaters. Fun for everyone!

Loren Gifford
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
500VA Isolation Transformer, 117VAC to 117VAC
Great product

It did a good job as advertised. I was getting a hum when I turned on my subwoofer. I plugged the sub directly to the isolation transformer. It decreased it by about 90%. Maybe if I plug my sub into my power conditioner and then plug the power conditioner into the transformer it might eliminate the hum completely. I have not tried it yet. Have not had time,but the hum is barely noticeable now. I have to get very close to the sub to detect it. Very happy even with the 90% hum reduction
I'll will definitately keep it
Great product..

Mike Dunn
500VA Isolation Transformer, 117VAC to 117VAC
Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output ISOLATION & LCD Volt Meter
Excellent price and it comes with an output meter!

It's hard to beat the price for a variable isolation transformer. Works well.

Barry Penfold Curtiss-Wright
Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output ISOLATION & LCD Volt Meter
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC/AC for the win

Used these to power my legacy Hallmark Star Trek ornaments and they work great. AC/AC is hard to find and the Powershack had these quality units and shipped them quick. Wish I’d had another option besides USPS for shipping but otherwise great product and experience.

GHammond
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
Exactly what I needed

Product came on time exactly as described. Worked perfectly.

Lin Cook
AC-AC Power Supply 6V AC @ 1670mA; 2.1 x 5.5mm
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm
Replacement Power Supply

This was a replacement for one of my Village Square Christmas houses. I've been looking for years actually and then stumbled upon AC-DC Power Shack. What a great find. Hans was quick to respond to my inquiry and extremely helpful. The replacement works perfectly. I couldn't be happier!

DO
AC-AC Power Supply 12V AC @ 1000mA; 2.5 x 5.5mm