GSD-750 - WHITE RODGERS - Datasheet.Live

AuTO/iSOlATiON TRANSFORMERS

www.stancor.com

Style C

For outline drawings refer to page 39

• Designed for 50/60 Hertz

STANCOR RMS DIMENSIONS-INCHES

PART Voltage Input Output Test Case Mounting Weight Agency

Sec. NUMBER Type Step Voltage Voltage Amps V.A. Cap. Voltage Style H W D MW MD (lbs.) Certif.

A P-6287 Auto Down 230 115 0.35 40 1500 C 3.13 2.50 2.75 2.00 1.75 2.20

P-8620‡ Auto Down 230 115 0.43 50 1500 A 2.31 3.69 1.88 3.13 - 1.50 -

GSD-75 Auto Down 230 115 0.65 75 1500 C 3.13 2.50 2.88 2.00 1.75 3.00 -

P-8630 Auto Down 230 115 0.74 85 1500 C 3.13 2.50 2.88 2.00 1.75 2.50 -

GSD-100 Auto Down 230 115 0.87 100 1500 C 3.13 2.50 3.13 2.00 2.06 3.70 -

B P-8631 Auto Down 230 115 1.10 125 1500 C 3.13 2.50 3.00 2.00 2.06 3.00 -

GSD-150 Auto Down 230 115 1.30 150 1500 C 3.88 3.13 3.25 2.50 2.22 4.40 -

P-8632 Auto Down 230 115 1.74 200 1500 C 3.88 3.13 3.25 2.50 2.22 4.20 -

GSD-250 Auto Down 230 115 2.20 250 1500 C 3.88 3.13 3.63 2.50 2.22 5.80 -

GSD-300 Auto Down 230 115 2.60 300 1500 C 3.88 3.13 3.63 2.50 2.22 5.80 -

C GSD-350 Auto Down 230 115 3.00 350 1500 C 3.88 3.13 4.31 2.50 2.72 7.30 -

P-8634 Auto Down 230 115 3.50 400 1500 C 3.88 3.13 4.25 2.50 2.72 7.00 -

GSD-500 Auto Down 230 115 4.30 500 1500 C 4.63 3.81 4.44 3.00 3.19 10.6 -

GSD-750 Auto Down 230 115 6.50 750 1500 C 4.63 3.81 5.38 3.00 3.94 14.4 -

GSD-1000 Auto Down 230 115 8.70 1000 1500 C 4.63 3.81 6.06 3.00 4.69 17.0 -

GSD-1500 Auto Down 230 115 13.0 1500 1500 C 5.38 4.44 6.00 3.50 4.00 20.0 -

D P-8638 Auto Up 115 230 0.54 125 1500 C 3.13 2.50 3.00 2.00 2.06 3.00 -

P-8639 Auto Up 115 230 1.30 300 1500 C 3.88 3.13 3.88 2.50 2.22 5.20 -

P-8640 Auto Up 115 230 2.17 500 1500 C 4.63 3.75 4.50 3.00 3.19 10.3 -

P-8689 Auto Up 115 230 4.35 1000 1500 C 4.63 3.75 6.13 3.00 4.69 17.0 -

E P-6413‡ Isolation Straight 115 115 0.005 0.60 1500 A 1.25 2.13 1.25 1.75 - 0.25 -

P-6411‡ Isolation Straight 115 115 0.13 15 1500 A 2.00 3.25 1.88 2.81 - 1.00 -

P-6412‡ Isolation Straight 115 115 0.30 35 1500 A 2.31 3.75 2.00 3.13 - 1.70 -

P-6410 Isolation Straight 115 115 0.43 50 1500 C 3.50 2.81 3.50 2.25 2.00 3.70 -

F P-8622†‡ Isolation Straight 115 s115/230 1.30 150 1500 C 3.88 3.13 4.00 2.50 2.72 6.20 -

P-6406‡ Isolation Straight 115/230*† 115 0.43 50 1500 A 2.38 3.75 2.31 3.13 - 1.80 -

G GIS-100 Isolation Straight 115 115 0.87 100 1500 C 3.50 2.81 3.56 2.25 2.28 4.50 -

GIS-150 Isolation Straight 115 115 1.30 150 1500 C 3.88 3.13 4.19 2.50 2.72 7.00 -

GIS-250 Isolation Straight 115 115 2.17 250 1500 C 4.69 3.75 4.38 3.00 3.19 9.00 -

GIS-500 Isolation Straight 115 115 4.35 500 1500 C 4.69 3.75 6.00 3.00 4.69 16.0 -

GIS-1000 Isolation Straight 115 115 8.70 1000 1500 C 5.38 4.38 8.13 3.50 6.50 31.0 -

H GISD-100 Isolation Down 230 115 0.87 100 1500 C 3.50 2.81 3.63 2.25 2.28 4.50 -

GISD-150 Isolation Down 230 115 1.30 150 1500 C 3.88 3.13 4.19 2.50 2.72 7.00 -

GISD-250 Isolation Down 230 115 2.17 250 1500 C 4.69 3.75 4.38 3.00 3.19 9.00 -

GISD-500 Isolation Down 230 115 4.35 500 1500 C 4.69 3.75 6.00 3.00 4.69 16.0 -

GISD-1000 Isolation Down 230 115 8.70 1000 1500 C 5.38 4.38 8.13 3.50 6.50 31.0 -

† Has electrostatic shield on separate leadwire (not grounded)

s Secondary is two separate 115 volt windings – can be wired independently

‡ Has lead wires

* Primary is two separate 115 volt windings

–– See Accessories, pages 40-41,

for International Adapter Plugs

Step-Down, Step-Up and Isolation Transformers

Auto/Isolation Transformers

Isolation Transformers have two (2) separate windings with an elec-

trostatic shield between them to provide complete electrical isolation from

the source.

Auto Transformers have one (1) winding that is tapped to achieve

specific output voltage. They provide no electrical isolation in a circuit.

Auto Transformers are typically smaller than their Isolation equivalent.

Style A

www.stancor.com 39

AuTO/iSOlATiON TRANSFORMERS

Step-Down, Step-Up and Isolation Transformers

Style C

Style A

GENERAL INFORMATION

Standard length of the input and output cords:

• Input Cord = 5

Feet minimum

• Output Cord = 8 Inches minimum

Auto/Isolation Transformers can be used in most countries by using

an input adapter plug. See page 40 for STANCOR’s high quality line of

International Adapter Plugs.

WHy & WHERE AUTO & ISOLATION

TRANSFORMERS ARE USED

Stancor’s stock Auto Transformers are connected for either step-down or

step-up applications involving line voltages of 115 or 230 Volts., 50/60 Hertz.

When isolation between the primary and secondary circuits is not necessary,

and a direct connection between them is permissible, the Auto Transformer

offers the advantages of smaller size, less weight, and lower cost.

This type of unit is generally used in applications involving American appli-

ances used abroad where our standard 115 Volt equipment must operate from

a 230 Volt source. It is also used for foreign appliances designed for 230 Volt

operation, which are to be used on our 115 Volt circuits. Our catalog items

are designed for continuous rated output on either 50 or 60 Hertz.

It is important to bear in mind that the Auto/Isolation

Transformers change only the voltage levels and do not change

the frequency from 50 to 60 Hertz or vice versa. In appliances

using synchronous motors, such as clocks or phonograph record

changers and players, the speed will be different when using them

on a frequency which differs from the frequency they were origi-

nally designed. In these cases the manufacturer of the appliance

should be consulted to obtain the proper motor.

The VA rating is equivalent to a Wattage rating where a resistive load and/

or unity power factor exists. When inductive loads such as motors are used

(as in a motor driven appliance) the power factor is not unity and to be accu-

rate the output is expressed in VA, which is the product of the output voltage

and the output current (Amps).

When selecting one of these items for use with an appliance which

includes a motor, allowance should be made for the starting current of the

motor which is somewhat higher than the running current. This information

is generally available from the appliance manufacturer. Information pertaining

to the AC Wattage or current required by an appliance is generally marked

on the item by the manufacturer and should be observed. It is much better to

buy a transformer with a larger VA rating than you will actually need because

of larger motor starting currents and variations in the line voltage and/or fre-

quency in some locations, which could cause overheating.

Isolation Transformers

Used where a direct connection between primary and secondary circuits is

not desired and the circuits must be isolated. This results in a larger, heavier

and more costly item for a given power rating. However, in addition to the

isolating advantages, an electrostatic shield is generally added to minimize

capacitive coupling between primary and secondary circuits. This helps to

minimize the transfer of unwanted power line transients and interference

from other sources connected to the power line by capacitive coupling to the

secondary circuit. The standard insulation test voltage rating between wind-

ings and between each winding and the core is 1,500 Volts R.M.S. This is

normally sufficient for 115 and 230 Volt operation.

The VA rating should be selected for each specific application, with allow-

ance for any abnormal load or environmental conditions. All catalog items

have an operating temperature of 105 Degrees C. (Designed for a 65 Degrees

C. maximum temperature rise above a maximum ambient temperature for 40

Degrees C., with unrestricted free air ventilation.) V-A/Amps output ratings are

for continuous operation from the specified input voltage and frequency.

General Information

All of these items have Class “A” insulation and are rated to have a maximum

operating temperature of 105 Degrees C. These units may be used with

rectifiers but the form factor as explained elsewhere in this catalog should

be observed for various combinations of rectifier circuits and types of load

following the rectifier.

These items are made with our standard N.E.M.A. plugs and receptacles,

primarily for use in this country. However, if used overseas where different

types of plugs are necessary, an adapter plug should be used or our plug

removed and a foreign plug attached to the end of the line cord.