BCD20021-G REV AB, 19-Jan-09

Page 1 of 22

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®

X Series Data Sheet

375, 500 Watt AC-DC and DC-DC DIN-Rail Converters

• RoHS lead-free-solder and lead-solder-exempted

products are available

• Rugged 35 mm DIN-rail snap-fit design

• Class I equipment

• Universal AC-input with single stage conversion AC to

DC or DC input of 90 to 350 V

• Power factor correction, harmonics IEC/EN 61000-3-2

• Virtually no inrush current

• Immunity to IEC/EN 61000-4-2, -3, -4, -5, -6, -11

• Emissions according to EN 55011/022

• Very high efficiency; up to 89%

• Short-term output peak power capability, rectangular

current limiting characteristic

• Single or two independently regulated outputs with 24,

36, or 48 V

• Outputs no-load, overload, and short-circuit proof

• PCBs protected by lacquer

• Very high reliability

Description

The Convert Select front end series represents a family of

DIN-rail mountable AC-DC and DC-DC converters with power

factor correction. The converters have been designed

according to the latest industry requirements and standards.

They are ideal for use in outdoor and other demanding

applications to power building control systems, factory

automation,

industrial

controls,

instrumentation,

electro-

magnetic drives, fans, and other DC loads. Different models

are available with a single output or two independently

regulated, electrically isolated outputs with 24, 36, or 48 V.

Special models for battery charging are available.

Key features of the Convert Select line include power factor

correction with low harmonic distortion, negligibly low inrush

current, high immunity to transients and surges, and low

electromagnetic emissions. Internal protection circuits such as

input over- and undervoltage lockout, thermal protection, as

well as output overvoltage protection by a second control loop

ensure safe operation of the final system.

Safety according to IEC/EN 60950-1, UL/CSA 60950-1,

IEC/EN 50178, IEC 61010-1, UL 508

The outputs deliver an electrically-isolated Safety Extra Low

Voltage, SELV, (except models LXR/LXN1740) and low output

noise. They are no-load, overload, and short-circuit proof. The

electronically controlled short-term peak power capability of up

to 150% of the rated output power enables the front end

converters to deliver additional power to start-up motors or to

safely operate subsequent circuit breakers. Built-in large sized

output capacitors absorb possible reverse energy, which may

be caused by quick deceleration of electromagnetic drives

connected directly to the output. A green LED at the front cover

displays the status of the output(s).

The Convert Select Series was designed according to all

relevant international safety standards. The converters are

approved by TÜV and UL, and are UL 508 listed. Adequate

clearances and creepage distances allow operation in pollution

degree 3 environment (with AC input). All board assemblies are

coated with a protective lacquer.

Features

114

4.49"

194

7.64"

138

5.43"

Table of Contents

Page

Page

Description .......................................................................... 1

Model Selection .................................................................. 2

Functional Description ........................................................ 4

Electrical Input Data ............................................................ 5

Electrical Output Data ......................................................... 7

Electromagnetic Compatibility (EMC) ............................... 12

Immunity to Environmental Conditions ............................. 13

Mechanical Data ............................................................... 14

Safety and Installation Instructions ................................... 15

Description of Options ...................................................... 17

Accessories ....................................................................... 20

EC Declaration of Conformity ........................................... 22