GE - General Electric Transformers General Purpose Transformers in Enclosures Catalog Page

Transformers

General Purpose Transformers in Enclosures

Dry-Type/Cased

Isolated
General Purpose
Single-Phase

General Information

The complete family of transformers from GE provide quiet,
reliable transformer operation.

All of the dry-type transformers through 1,000 kVA are UL listed
under the requirements of Standard 506 and 1561. In addition,
each transformer meets the requirements of NEMA ST-20, 1992.
Type QB, QMS, and QMS 3 models are C-UL listed.

General-purpose transformers are rated 600 Volts and below
for supplying appliance, lighting, and power loads from electrical
distribution systems. Standard distribution voltages are 600, 480,
and 240 Volts; standard load voltages are 480, 240, 208, and 120
Volts. The transformer is used to obtain the load voltage from the
distribution voltage. Since no vaults are required for installation,
these transformers can be located right at the load to provide the
correct voltage for the application. This eliminates the need for
long, costly, low-voltage feeders.

Construction—Types QB, QMS, and QMS 3

Core and coils are contained within a NEMA 3R nonventilated
weatherproof enclosure. Type QB, QMS, and QMS 3 units feature
encapsulated core and coils.

Type QB, .050 kVA-3 kVA, Si ngle- Phase

Type QMS, 5 kVA-2 5 k VA , Sing le-Phase

Section 14

.050 - 3 kVA Indoor/Outdoor Type QB UL Listed C-UL Listed

Wiring Product

Input Voltage Output Voltage KVA Frequency (Hz) Taps Diagram No.

240 x 480 Volts, 480 Volts 120/240 Volts 0.05 60 Hz No taps 1 9T51B0002
240 x 480 Volts 120/240 Volts 0.05 50/60 Hz No taps 1 9T51B0502
240 x 480 Volts, 480 Volts 120/240 Volts 0.075 60 Hz No taps 1 9T51B0003
240 x 480 Volts 120/240 Volts 0.075 50/60 Hz No taps 1 9T51B0503
240 x 480 Volts, 480 Volts 120/240 Volts 0.1 60 Hz No taps 1 9T51B0004
240 x 480 Volts 120/240 Volts 0.1 50/60 Hz No taps 1 9T51B0504
240 x 480 Volts, 480 Volts 120/240 Volts 0.15 60 Hz No taps 1 9T51B0005
240 x 480 Volts 120/240 Volts 0.15 50/60 Hz No taps 1 9T51B0505
240 x 480 Volts, 480 Volts 120/240 Volts 0.25 60 Hz No taps 1 9T51B0007
240 x 480 Volts 120/240 Volts 0.25 50/60 Hz No taps 1 9T51B0507
240 x 480 Volts, 480 Volts 120/240 Volts 0.5 60 Hz No taps 1 9T51B0008
240 x 480 Volts 120/240 Volts 0.5 50/60 Hz No taps 1 9T51B0508
240 x 480 Volts, 480 Volts 120/240 Volts 0.75 60 Hz No taps 1 9T51B0009
240 x 480 Volts 120/240 Volts 0.75 50/60 Hz No taps 1 9T51B0509
240 x 480 Volts, 480 Volts 120/240 Volts 1 60 Hz No taps 1 9T51B0010
240 x 480 Volts 120/240 Volts 1 50/60 Hz No taps 1 9T51B0510
240 x 480 Volts, 480 Volts 120/240 Volts 1.5 60 Hz No taps 1 9T51B0011
240 x 480 Volts 120/240 Volts 1.5 50/60 Hz No taps 1 9T51B0511
240 x 480 Volts, 480 Volts 120/240 Volts 2 60 Hz No taps 1 9T51B0012
240 x 480 Volts 120/240 Volts 2 50/60 Hz No taps 1 9T51B0512
240 x 480 Volts, 480 Volts 120/240 Volts 3 60 Hz No taps 1 9T51B0013
240 x 480 Volts 120/240 Volts 3 50/60 Hz No taps 1 9T51B0513
480 Volts 120/240 Volts 0.25 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0547
480 Volts 120/240 Volts 0.5 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0548
480 Volts 120/240 Volts 0.75 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0549
480 Volts 120/240 Volts 1 60 Hz (2) 5% taps below rated primary volts 2 9T51B0050
480 Volts 120/240 Volts 1 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0550
480 Volts 120/240 Volts 1.5 60 Hz (2) 5% taps below rated primary volts 2 9T51B0051
480 Volts 120/240 Volts 1.5 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0551
480 Volts 120/240 Volts 2 60 Hz (2) 5% taps below rated primary volts 2 9T51B0052
480 Volts 120/240 Volts 2 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0552
480 Volts 120/240 Volts 3 60 Hz (2) 5% taps below rated primary volts 2 9T51B0053
480 Volts 120/240 Volts 3 60 Hz (4) 2 1/2% taps: 2 above and 3 9T51B0135

480 Volts 120/240 Volts 3 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0553
1

See page 14-14 for wiring diagrams.

2 below rated primary volts

1

Number GO-90A

Control Catalog

14-9

Transformers

Section 14

General Purpose Transformers in Enclosures

Dry-Type/Cased

Isolated
General Purpose
Single-Phase

.050 - 3 kVA Indoor/Outdoor Type QB UL Listed C-UL Listed (Continued)

Wiring Product

Input Voltage Output Voltage KVA Frequency (Hz) Taps Diagram No.

600 Volts 120/240 Volts 0.05 60 Hz No taps 5 9T51B0082
600 Volts 120/240 Volts 0.075 60 Hz No taps 5 9T51B0083
600 Volts 120/240 Volts 0.1 60 Hz No taps 5 9T51B0084
600 Volts 120/240 Volts 0.1 50/60 Hz No taps 5 9T51B0584
600 Volts 120/240 Volts 0.15 60 Hz No taps 5 9T51B0085
600 Volts 120/240 Volts 0.25 60 Hz No taps 5 9T51B0087
600 Volts 120/240 Volts 0.25 50/60 Hz No taps 5 9T51B0587
600 Volts 120/240 Volts 0.25 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0567
600 Volts 120/240 Volts 0.5 60 Hz No taps 5 9T51B0088
600 Volts 120/240 Volts 0.5 50/60 Hz No taps 5 9T51B0588
600 Volts 120/240 Volts 0.5 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0568
600 Volts 120/240 Volts 0.75 60 Hz No taps 5 9T51B0089
600 Volts 120/240 Volts 0.75 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0569
600 Volts 120/240 Volts 1 60 Hz No taps 5 9T51B0090
600 Volts 120/240 Volts 1 60 Hz (2) 5% taps below rated primary volts 2 9T51B0070
600 Volts 120/240 Volts 1 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0570
600 Volts 120/240 Volts 1.5 60 Hz No taps 5 9T51B0091
600 Volts 120/240 Volts 1.5 60 Hz (2) 5% taps below rated primary volts 2 9T51B0071
600 Volts 120/240 Volts 1.5 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0571
600 Volts 120/240 Volts 2 60 Hz No taps 5 9T51B0092
600 Volts 120/240 Volts 2 60 Hz (2) 5% taps below rated primary volts 2 9T51B0072
600 Volts 120/240 Volts 2 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0572
600 Volts 120/240 Volts 3 60 Hz No taps 5 9T51B0093
600 Volts 120/240 Volts 3 60 Hz (2) 5% taps below rated primary volts 2 9T51B0073
600 Volts 120/240 Volts 3 50/60 Hz (2) 5% taps below rated primary volts 2 9T51B0573

1

Number GO-90A

5 - 25 kVA Indoor/Outdoor Type QMS 115°C Rise UL Listed C-UL Listed

Wiring Product

Input Voltage Output Voltage KVA Frequency (Hz) Taps Diagram No.

240 x 480 Volts 120/240 Volts 5 60 Hz No taps 1 9T21B1004G02
240 x 480 Volts, 480 Volts 120/240 Volts 5 50/60 Hz No taps 1 9T21B1055G02
240 x 480 Volts 120/240 Volts 7.5 60 Hz No taps 1 9T21B1005G02
240 x 480 Volts, 480 Volts 120/240 Volts 7.5 50/60 Hz No taps 1 9T21B1056G02
240 x 480 Volts 120/240 Volts 10 60 Hz No taps 1 9T21B1006G02
240 x 480 Volts, 480 Volts 120/240 Volts 10 50/60 Hz No taps 1 9T21B1057G02
240 x 480 Volts 120/240 Volts 15 60 Hz No taps 1 9T21B9103
240 x 480 Volts, 480 Volts 120/240 Volts 15 50/60 Hz No taps 1 9T21B9133
240 x 480 Volts 120/240 Volts 25 60 Hz No taps 1 9T21B9104
240 x 480 Volts, 480 Volts 120/240 Volts 25 50/60 Hz No taps 1 9T21B9134
480 Volts 120/240 Volts 5 60 Hz (2) 5% taps below rated primary volts 2 9T21B1007G02
480 Volts 120/240 Volts 5 60 Hz (4) 2 1/2% taps: 2 above and 3 9T21B1013G02

480 Volts 120/240 Volts 7.5 60 Hz (2) 5% taps below rated primary volts 2 9T21B1008G02
480 Volts 120/240 Volts 7.5 60 Hz (4) 2 1/2% taps: 2 above and 3 9T21B1014G02

480 Volts 120/240 Volts 10 60 Hz (2) 5% taps below rated primary volts 2 9T21B1009G02
480 Volts 120/240 Volts 10 60 Hz (4) 2 1/2% taps: 2 above and 3 9T21B1015G02

480 Volts 120/240 Volts 15 60 Hz (2) 5% taps below rated primary volts 2 9T21B9105
480 Volts 120/240 Volts 15 60 Hz (4) 2 1/2% taps: 2 above and 3 9T21B9109

480 Volts 120/240 Volts 25 60 Hz (2) 5% taps below rated primary volts 2 9T21B9106
480 Volts 120/240 Volts 25 60 Hz (4) 2 1/2% taps: 2 above 3 9T21B9110

600 Volts 120/240 Volts 5 60 Hz No taps 5 9T21B1016G02
600 Volts 120/240 Volts 5 60 Hz (2) 5% taps below rated primary volts 2 9T21B1019G02
600 Volts 120/240 Volts 7.5 60 Hz No taps 5 9T21B1017G02
600 Volts 120/240 Volts 7.5 60 Hz (2) 5% taps below rated primary volts 2 9T21B1020G02
600 Volts 120/240 Volts 10 60 Hz No taps 5 9T21B1018G02
600 Volts 120/240 Volts 10 60 Hz (2) 5% taps below rated primary volts 2 9T21B1021G02
600 Volts 120/240 Volts 15 60 Hz No taps 5 9T21B9111
600 Volts 120/240 Volts 15 60 Hz (2) 5% taps below rated primary volts 2 9T21B9113
600 Volts 120/240 Volts 25 60 Hz No taps 5 9T21B9112
600 Volts 120/240 Volts 25 60 Hz (2) 5% taps below rated primary volts 2 9T21B9114
1

See page 14-14 for wiring diagrams.

2 below rated primary volts

2 below rated primary volts

2 below rated primary volts

2 below rated primary volts

2 below rated primary volts

1

Number GO-90C

14-10

Control Catalog