Isolation Transformers - 1 kva to 4 kva
1 kva Isolation Transformer
Input / Output: 120 / 240v
(TP) ISB-100W
Toroid Corporation isolation transformer. Incredibly low leakage < 100 µa. Medical approvals: UL2601.1, CSA C22.2 601.1, EN60601.1, CE(LVO). New in box.

Output Power: 1 kva
Input / Output Voltage: 120 / 240v
Frequency: 50 / 60Hz
Dimensions: 8.56" x 12.03" x 4.14"H

$525 each - $475 (3+)
1 kva Isolation Transformer
Input / Output: 120 / 240 vac
(TP) 91001-31T
MGE isolation transformer. 0.001 pF isolation. 1 kva. Used, excellent condition.

Input / Output: 120 / 240 vac
Dimensions: 7-1/2" x 10" x 6-1/2"H
$495 each
1 kva Isolation Transformer
Input / Output: 120 vac
(TP) 91001-12
Topaz isolation transformer. 1 kva, 50/60 Hz, 0.005 pF isolation. 5 foot grounded AC cord. Duplex receptacle Removed from service but clean.

Input / Output: 120 vac
Dimensions: 10" x 8-1/4" x 6-1/4"H
Weight: 40 lbs
$649 each
1 kva Isolation Transformer
Input / Output: 120 vac
(TP) 91001-32
Topaz isolation transformer. 1 kva, 50/60 Hz, 0.0005 pF isolation. 5 foot grounded AC cord. Duplex receptacle Removed from service but clean.

Input / Output: 120 vac
Dimensions: 10" x 8-1/4" x 6-1/4"H
Weight: 40 lbs
$895 each
1.8 kva Isolation Transformer
Input / Output: 120 vac
(TP) 91018-32
Topaz isolation transformer. 0.0005 pF isolation. Duplex plug out, 2" pigtail in. Used.

Output Power: 1.8 kva
Input / Output Voltage: 120 vac
Frequency: 60Hz
Dimensions: 7-3/4" x 11" x 6-3/4"H
$1,175
1.5 kva Isolation Transformer
Input: 115 / 230v
Output: 115v
(TP) EIT-1.5-5451
Xentek isolation transformer. 0.0001 pF isolation. Duplex outlet out, 6' AC cord in. Removed from service - very clean!

Output Power: 1.5 kva
Input: 115/230v 50/60 Hz
Output: 115v
Dimensions: 7-3/4" x 12" x 6-1/2"H

$1,349
Topaz Ultra Isolation Transformer
440 vac to 117 vac
3.5 kva
(TP) 91903-42
Topaz ultra isolation, 3.5 kva noise suppressing transformer has only 0.005 pF capacity between primary and secondary! 440v to 117v, 60 Hz. 15" x 7"w x 8". Type 1 indoor enclosure. 80 pounds shipping weight. New!
$1,195 each
3 kva Transformer
Input / Output: 208 vac, 14.4 amps
(TP) NCT-F5
Denkenseiki NCT-F5 transformer. 3 kva. 2 kv insulation, withstands up to 5 kv. 40 µsec pulse. 50 / 60 Hz. New.

Input / Output: 208 vac
Dimensions: 11-1/4"H x 7-1/8"W x
7-7/8" deep
Weight: 88 lbs
$1,375 each
4 kva Isolation Transformer
Input: 208 / 240 vac
Output: 120 vac

(TP) EIT-5461
Xentek isolation transformer. 0.0001 pF isolation. 24" pigtails with 30 amp plug and receptacle. Used, excellent condition.

Input: 208 / 240 vac, 50 / 60 Hz
Output: 120 vac, 4 kva
Dimensions: 8-1/2" x 14-1/2" X 6-1/4"H
Weight: 88 lbs net
$1,750
Topaz Isolation Transformer
Input / Output: 120 vac, 50/60 Hz
2.4 kva
(TP) 91002-32
Topaz isolation transformer. 2.4 kva, 0.0005 pF inter-winding capacity. 5 foot input cord. Twist receptacle output. Used, excellent condition.

Input / Output: 120v, 50 / 60 Hz
Dimensions: 8-1/2" x 12" x 7-1/4"H
Weight: 76 lbs net
$1,250
Topaz Ultra Isolator Transformer
Input: 120v / 208v - 3 phase
Output: 120v / 208v - 1.5 kva
(TP) 11/211T35T4
Topaz ultra isolator transformer. 1.5 kva, 0.0005 pF interwinding capacity. Used, excellent condition.

Input: 120v / 208v - 3 phase - 400 Hz only
Output: 120v / 208v
Overall dimensions: 20" x 11" x 6"H
Weight: 45 lbs
$795 each
Isolation Transformer
Input: 480 vrms
Output: 120 vrms

(TP) 4195
Quality Isolation Transformer, this unit is 12.5 amps (RMS) at 120 vac. 1.5 kva.

Input: 480 vrms
Output: 120 vrms
Dimensions: 7-1/4" x 8" x 7" H
Weight: 39.2 lbs
$175 each
Topaz Ultra Isolation Transformer
Input / Output: 120v / 240v @ 15 amps / 7.5 amps
1.8 kva
(TP) 91018-31T
Topaz MGE ultra isolation transformer. 1.8 kva, 50/60 Hz, 146 dB minimum common mode noise attenuation. New in the box!!

Input / Output: 120v / 240v @
15 amps / 7.5 amps
Dimensions: 8.4"W x 11"L x 6.6"H
Weight: 46 lbs
$925 each
Topaz Isolation Transformer
Input / Output: 120 / 240 vac
1.8 kva

(TP) 91018-11/N
Topaz isolation transformer. 1.8 kva, 50/60 Hz, 0.005 pF isolation. Wired 110v in / out. New, unused.

Input / Output: 120 / 240 vac
Dimensions: 7" x 11" x 6-1/2"H
Weight: 50 lbs
$825 each
Xentek Isolation Transformer
Input / Output: 120v / 240v
2 kva
(TP) LGY2.OK-30-5580
Xentek extreme isolation transformer. 2 kva, 50/60 Hz, 146dB common mode rejection. 60" heavy duty input / output cables. Twist plug input. Weather proof plug and receptacle output with gasket. Cable plug P/N: 84331211. Panel jack P/N: 84431241. Panel jack made by Interpower. Removed from service but very, very clean. Looks new. Hurry, only one in stock!!

Input: 120v / 240v
Output: 120v / 240v
Dimensions: 8-1/4" x 11-1/4" x 6-1/2"H
Weight: 49 lbs
$1,075
Isolation Transformer
Input / Output: 110v to 120v, 2500 watts
2.5 kva

(TP) R77
UTC isolation transformer. 2.5 kva, 2500w. Electrostatically shielded. Circa 1950. One foot is broken. New, old stock. NSN: 5950-00-856-1800.

Input / Output: 110v to 120v
Dimensions: 10" x 7" x 8-1/2"H
Weight: 70 lbs
$495
Elgar Isolation Transformer
Input / Output: 120v / 240v
(TP) EIT2.5-13
Elgar isolation transformer. 2.5 kva, .0005 pf. 5' input cord with no plug. Twist receptacle output. Excellent condition.

  • Input / Output: 120v / 240v @ 50 / 60 Hz
$1,250 each
Xentek Isolation Transformer
Input: 220 / 440v
Output: 208 / 120v
(TP) EIT2.5-220
Xentek isolation transformer. 2.5 kva, .0005 pf capacity. 1 phase, 60 Hz. Removed from 3 phase bank.

  • Input: 220v / 440v
  • Output: 208v / 120v
$650 each
Topaz Single Phase Transformer
Input: 96v / 126v
Output: 120v - 2.5 kva
(TP) 75507/S
Single phase transformer removed from new (TP) 91407-11, 3 phase stack (elsewhere on this website). 0.005 pF isolation. New, unused but knock outs missing.

Input: 96v / 126v, 27 amps
Output: 120v, 2.5 kva
Dimensions: 8-1/2" x 10" x 7-1/2"H
Weight: 56 lbs
$995 each
Topaz Isolation Transformer
Input / Output: 120v / 240v
2.5 kva

(TP) 91002-31/U
Topaz isolation transformer. 2.5 kva. 0.0005 pF. 2.5 kva. 0.0005 pF. Used- good condition.

Input / Output: 120v / 240v @ 50 / 60 Hz, 1 phase
Dimensions: 8-1/4" x 12" x 6-1/2"H
Weight: 50 lbs

$1,695 each
Xentek Isolation Transformer
Input: 100v / 120v / 200v / 220v / 240v
Output: 120v / 240v - 2.6 kva
(TP) EIT5422
Xentek extreme isolation transformer. 2.6 kva, 0.001 pF capacitance. Used, but in new condition.

Input: 100v / 120v / 200v / 220v / 240v
Output: 120v / 240v, 50 / 60 Hz
Dimensions: 8-1/2" x 12" x 6-1/2"H
Weight: 70 lbs net
$1,165 each
Basler Isolation Transformer
Primary: 190v / 208v / 220v / 380v / 416v / 440v
Secondary: 230 vac @ 4 kva

(TP) 151805
Basler isolation transformer. 1 phase. BE13186001. Made for Scientific Radio 10 kw transmitter. Net weight = 101 lbs.

Primary: 190v / 208v / 220v /
380v / 416v / 440v
Secondary: 230 vac @ 4 kva
Dimensions: 9-1/4" x 9-1/2"W x 8-1/2"H
$450 each
Topaz Isolation Transformer
Input / Output: 120v / 240v, 1 phase, 50/60 Hz
2.5 kva

(TP) 91002-31
Topaz isolation transformer. 0.0005 pF isolation. 2 foot pigtail plug, grounded (CNE-566C Plug). 2 foot pigtail receptacle, grounded, twist lock. Wired for 120 vac. Used, very clean.

Input: 120v / 240v, 1 phase, 50/60 Hz
Output: 120v / 240v, 2.5 kva, 0.0005 pF
Dimensions: 8-1/4" x 12" x 6-1/2"H
Weight: 58 lbs net
$1,695 each