HS20F750B SOLA HEVI DUTY, HS20F750B Datasheet

HS20F750B

Manufacturer Part Number

HS20F750B

Description

Buck Boost Transformer

Manufacturer

SOLA HEVI DUTY

Type

Buck-Boostr

Datasheets

1.HS19B100.pdf (6 pages)

2.HS19B250.pdf (4 pages)

Specifications of HS20F750B

Transformer Type

Buck Boost

Input Voltage

240V

Output Voltage

16V

Current Rating

46.8A

Power Rating

0.75kVA

Transformer Mounting

Wall

Secondary Current Nom

46.8A

Supply Voltage

240V

Capacity

0.75 kVA

Configuration

Encapsulated

Current, Secondary

46.8/23.4 A

Dimensions

6"W×10"H×5"D

Frequency

60 Hz

Number Of Outlets

Phase

Power, Rating

750 VA

Standards

UL, cULus, CSA

Voltage, Primary

120/240 VAC

Voltage, Secondary

16/32 VAC

Primary Voltages

2 X 120V

Secondary Voltages

2 X 16V

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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Buck-Boost Transformers

Buck-Boost transformers are small, single phase, dry type

distribution transformers designed and shipped as

insulating/isolating transformers. They have a dual voltage

primary and a dual voltage secondary. These transformers

can be connected for a wide range of voltage combinations.

The most common use is to buck (lower) or boost (raise) the

supply voltage a small amount, usually 5 to 27%. Buck-

Boost transformers are in compliance with NEC Article 210-9,

Exception 1 when field connected as an autotransformer.

The major advantages of Buck-boost transformers are their

low cost, compact size and light weight. They are also more

efficient and cost less than equivalent isolation transformers.

When connected as an autotransformer, they can handle

loads up to 20 times the nameplate rating. A buck-boost

transformer is the ideal solution for changing line voltage by

small amounts.

On this page:

When a buck-boost has the primary and secondary windings connected, per recommended instructions,

it becomes an autotransformer. Now only the secondary windings are transforming voltage and current.

The majority of the KVA load passes directly from the supply to the load. This is why buck-boost

transformers can supply a load with a much larger KVA rating than the nameplate indicates.

Ideal for low voltage lighting control applications

Sola/Hevi-Duty buck-boost transformers are designed to supply power to low voltage lighting circuits,

control panels or other systems requiring 12, 16, 24, 32, or 48 Volts. When connected as an insulating

transformer (by following the wiring diagram on the inside of the transformer case), the transformer's

capacity matches the nameplate KVA rating.

Sola/Hevi-Duty buck-boost transformers are also suited for low voltage landscape lighting. They are UL

listed for outdoor service and their compact size makes them the perfect solution for providing power to

accent lighting applications.

When using dimmers for low voltage applications, use only dimmers designed and rated for use with

magnetic loads. We strongly recommend contacting the dimmer manufacturer for advice on your

specific lighting application.

Applications

Selection Steps

Input Line Voltage

Measure the supply voltage with a voltmeter.

Voltage Required for the Load

Check the load equipment to determine the voltage requirement.

Selection

Steps,

Fusing Buck-Boost

Transformers, Applications,

Accessories

Related parts for HS20F750B

HS20F750B Summary of contents

Page 1

... Now only the secondary windings are transforming voltage and current. The majority of the KVA load passes directly from the supply to the load. This is why buck-boost transformers can supply a load with a much larger KVA rating than the nameplate indicates. Applications ...

Page 2

... For determining the correct size of breaker or fuse for a given range of input or output ampere ratings, refer to Section 450-4, of the National Electric Code (NEC). "450-4, Autotransformers 600 Volts, Nominal or Less. (a) Overcurrent Protection. Each autotransformer 600 volts, nominal or less shall be protected by an individual overcurrent device installed in series with each ungrounded input conductor ...

Page 3

... HS19F7.5A Group 2 – 120 x 240 Volt Primary, 16/32 Volt Secondary Maximum Secondary Amperage KVA Catalog Number 16 V 0.15 9.38 HS20B150 0.25 15.6 HS20B250 0.5 31.2 HS20F500B 0.75 46.8 HS20F750B 1 62.5 HS20F1B 1.5 93.7 HS20F1.5A 2 125 HS20F2A 3 187.5 HS20F3A 5 312 HS20F5A 7.5 468 HS20F7 ...

Page 4

... Connect Interconnect Voltage Lines To 240 & 120 H1 & Secondary Connect Interconnect Voltage Lines & 12-0-12 X1-X2- & HS19 and S19 Series 216 Buck–Boost Transformers Height Width (inch) (inch Non-Encapsulated - 50/60 Hz, Single Phase 3. 5 Encapsulated - 60 Hz, Single Phase 62.5 ...

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