PKB4313D datasheet(3/28 Pages) FLEX

3 / 28 page

Flex internal

PRODUCT SPECIFICATION

3 (4)

Prepared (also subject responsible if other)

No.

jidgezou George Zou

1/1301-BMR 674 01

Approved

Checked

Date

Rev

Reference

jiddaxie David Xie

2019-08-27

Safety Specification

General information

Flex Power Modules DC/DC converters and DC/DC

regulators are designed in accordance with the safety

standards IEC 60950-1, EN 60950-1 and UL 60950-1

Safety of Information Technology Equipment.

IEC/EN/UL 60950-1 contains requirements to prevent injury

or damage due to the following hazards:

• Electrical shock

• Energy hazards

• Fire

• Mechanical and heat hazards

• Radiation hazards

• Chemical hazards

On-board DC/DC converters and DC/DC regulators are

defined as component power supplies. As components

they cannot fully comply with the provisions of any safety

requirements without “conditions of acceptability”.

Clearance between conductors and between conductive

parts of the component power supply and conductors on

the board in the final product must meet the applicable

safety requirements. Certain conditions of acceptability

apply for component power supplies with limited stand-off

(see Mechanical Information and Safety Certificate for

further information). It is the responsibility of the installer to

ensure that the final product housing these components

complies with the requirements of all applicable safety

standards and regulations for the final product.

Component power supplies for general use should comply

with the requirements in IEC/EN/UL 60950-1 Safety of

Information Technology Equipment. Product related

standards, e.g. IEEE 802.3af Power over Ethernet, and

ETS-300132-2 Power interface at the input to telecom

equipment, operated by direct current (dc) are based on

IEC/EN/UL 60950-1 with regards to safety.

Flex Power Modules DC/DC converters, Power interface

modules and DC/DC regulators are UL 60950-1 recognized

and certified in accordance with EN 60950-1. The

flammability rating for all construction parts of the products

meet requirements for V-0 class material according to

IEC 60695-11-10, Fire hazard testing, test flames – 50 W

horizontal and vertical flame test methods.

Isolated DC/DC converters

The product may provide basic or functional insulation

between input and output according to IEC/EN/UL 60950-1

(see Safety Certificate), different conditions shall be met if

the output of a basic or a functional insulated product shall

be considered as safety extra low voltage (SELV).

For basic insulated products (see Safety Certificate) the

output is considered as safety extra low voltage (SELV) if

one of the following conditions is met:

• The input source provides supplementary or double or

reinforced insulation from the AC mains according to

IEC/EN/UL 60950-1.

• The input source provides functional or basic insulation

from the AC mains and the product’s output is reliably

connected to protective earth according to

IEC/EN/UL 60950-1.

For functional insulated products (see Safety Certificate)

the output is considered as safety extra low voltage (SELV)

if one of the following conditions is met:

• The input source provides double or reinforced

insulation from the AC mains according to

IEC/EN/UL 60950-1.

• The input source provides basic or supplementary

insulation from the AC mains and the product’s output is

reliably connected to protective earth according to

IEC/EN/UL 60950-1.

• The input source is reliably connected to protective

earth and provides basic or supplementary insulation

according to IEC/EN/UL 60950-1 and the maximum

input source voltage is 60 Vdc.

Galvanic isolation between input and output is verified in an

electric strength test and the isolation voltage (Viso) meets

the voltage strength requirement for basic insulation

according to IEC/EN/UL 60950-1.

It is recommended to use a slow blow fuse at the input of

each DC/DC converter. If an input filter is used in the circuit

the fuse should be placed in front of the input filter. In the

rare event of a component problem that imposes a short

circuit on the input source, this fuse will provide the

following functions:

• Isolate the fault from the input power source so as not

to affect the operation of other parts of the system

• Protect the distribution wiring from excessive current

and power loss thus preventing hazardous overheating

PKB4000D series Fully regulated DC-DC Converters

Input 36-75 V, Output up to 25 A / 300 W

28701-BMR674 01 Rev G

July 2019

Technical Speciﬁcation

PKB4313D Datasheet(PDF) 3 Page - Flex Power Modules. FLEX LTD.

PKB4313D Datasheet(HTML) 3 Page - Flex Power Modules. FLEX LTD.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Datasheet Download

Link URL