9-1393792-0 TE Connectivity, 9-1393792-0 Datasheet - Page 62

A transformer is a passive electrical device which is designed to change one AC voltage to another by magnetic induction. It “steps-up” or “steps-down”

voltage in order to match incoming supply voltage from the utility to the voltage required by the user’s end product. Typical USA supply voltages are 120,

208, 240, 277, 480 (and 575 in Canada). Common International voltages include 110, 220, 380, and 415.

What is an Isolation Transformer?

An isolation transformer is a transformer whose primary and secondary windings are separate for the purpose of isolating the circuit from the supply source.

An autotransformer has only one winding, which is shared by the primary and secondary circuits. Autotransformers do not provide isolation but offer a

substantial savings when used to obtain small increments of voltage above or below the input voltage.

A Class II transformer is used to supply Class II circuits. Class II transformers have a maximum VA (Volt-Ampere) rating of less than 100 and a maximum

secondary output of 30 VAC. The maximum VA generally offered is 75 and the most common secondary voltage is 24 VAC. All Class II transformers are

either inherently or non-inherently limited. This means that the maximum output current of the transformer is limited, either by the intrinsic coil impedance or

by a fuse or circuit breaker. These transformers are designed to meet the requirements of U.L. 1585.

General purpose transformers include any VA rating along with primary and secondary voltage ratings up to 600 VAC. Although internal fusing is an option, no

fusing is required. However, applicable U.L. specifications may require fusing in the end product. These transformers are designed to meet the

requirements of U.L. 506.

Voltage regulation is the percent of change in the output voltage when the load is reduced from full load to no load while the input voltage remains constant.

A control transformer is designed to provide rated output voltage at full VA. As the load decreases, the output voltage will go up. Conversely, increases in

load will result in lower output voltages. Typically, the smaller the VA size of the unit, the greater difference there is between no-load and full-load voltage.

Part Numbering System

Example: 4000-01E07BB999 This part number is a Class II transformer with a 120V primary and 24V secondary. It is 40VA and inherently energy limited. This

is a foot mount transformer with quick connect terminals (line & load) exiting out of the same side of the transformer cover.

Note: This is a partial listing only. Consult factory for your specific requirements. All combinations of voltage and VA may not be available.

Dimensions are shown for

reference purposes only.

Transformers

This chart illustrates a breakdown of our part numbering system on a few of our most popular models. Consult factory for your specific requirements.

What is an Autotransformer?

What is a Class II Transformer?

What is a General Purpose Transformer?

What is Voltage Regulation?

What is the effect of a load on a control transformer?

1. Series:

2. Packaging:

3. Primary and Secondary Voltages:

4. VA and Series Dimension:

5. Stack Thickness and Fusing (Generally determined at factory):

6. Mounting and Termination:

7. Customer ID Suffix:

4000 = Class II (UL 1585) inherently protected or internally fused.

4001 = Class II (UL 1585) externally fused.

4100 = No UL or CSA approval.

– = Bulk Pack

01 =

02 =

03 =

04 =

05 =

A =

C =

M =

E =

V =

19 = 0.5” (12.7mm) thick.

02 = 0.625” (15.875mm) thick.

K =

BC =

G =

000-999 = Factory assigned customer ID

will short itself out and fail safely, not requiring a fuse.

within the transformer secondary. Without this overload protection, the transformer would not satisfy the safety requirements for a Class II circuit.

Inherently Energy Limited Transformers - Class II transformers up to 50 VA are “Inherently Limited” which means that the transformer, if overloaded,

Non-Inherently Energy Limited Transformers - 60 thru 75 VA Class II transformers are generally protected by a resettable circuit breaker or a fuse

4” (101.6mm)foot

120/208/240

Primary V

VA Rating

Panel Mount

Foot Mount

Mounting

120

240

277

480

Y = Individual Box

7/8” (22.22 mm)

3/4” (19.05mm)

Secondary V

Series Size

Screw / Leads

Termination

Leads

...Questions and Answers

07 = 0.875” (22.225mm) thick.

04 = 1.00” (25.4mm) thick.

Dimensions are in inches over

(millimeters) unless otherwise

specified.

Typical Part No.

AB =

AE =

BB =

09 =

13 =

20 =

51 =

78 =

AW =

L =

J =

K =

Z =

Catalog 1308242

Issued 3-03

Foot Mount

4500 = Autotransformer.

4600 = 60 Hz. only

4700 = General Purpose (UL 506).

Mounting

208/240/480

Primary V

VA Rating

208/240

380/415

575

120

100

150

Specifications and availability

subject to change.

15 = 1.00” (25.4mm) thick.

18 = 1.25” (31.75mm) thick.

QCs on Other Side

15/16” (23.81mm)

1 1/4” (31.75mm)

QCs on One Side

7/8” (22.22 mm)

Secondary V

Termination

QCs on Top

Series Size

4000 –

PRODUCTS UNLIMITED

07 BB 999

www.tycoelectronics.com

Technical support:

Refer to inside back cover.

9-1393792-0 TE Connectivity, 9-1393792-0 Datasheet - Page 62

9-1393792-0

Specifications of 9-1393792-0

Related parts for 9-1393792-0