QT20.361

Q-Series

Oct. 2006 / Rev. 1.0 DS-QT20.361-EN

All parameters are specified at 36V, 13.3A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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Output protection

Electronically protected against overload, no-load and short-circuits

Output over-voltage protection

typ. 49Vdc

max. 53Vdc

In case of an internal power supply defect, a redundant

circuitry limits the maximum output voltage. The output

shuts-down and automatically attempts to restart.

Degree of protection

IP 20

EN/IEC 60529

Penetration protection

> 3.5mm

e.g. screws, small parts

Over-temperature protection

yes

Output shut-down with automatic restart

Input transient protection

MOV (Metal Oxide Varistor) and active transient filter

Internal input fuse

Not included

See section 27.6

Note: In case of a protection event, audible noise may occur.

Input / output separation

SELV

IEC/EN 60950-1

PELV

EN 60204-1, EN 50178, IEC 60364-4-41

double or reinforced insulation

Class of protection

I

PE (Protective Earth) connection required

Isolation resistance

> 5MOhm

Input to output, 500Vdc

PE resistance

< 0.1Ohm

Between housing and PE terminal

Touch current (leakage current)

typ. 0.38mA

3x 400Vac, 50Hz, TN mains

typ. 0.54mA

3x 480Vac, 60Hz, TN mains

< 0.47mA

3x 440Vac, 50Hz, TN mains

< 0.7mA

3x 528Vac, 60Hz, TN mains

Fig. 20-1 Dielectric strength

A

B

C

D

Type test

60s

2500Vac

3000Vac

500Vac 500Vac

Factory test

5s

2500Vac

2500Vac

500Vac 500Vac

Field test

5s

2000Vac

2000Vac

500Vac 500Vac

A

D

C

B

L1

Input

DC-ok

Earth

Output

-

+

L3

L2

Type tests and factory tests:

Conducted by the manufacturer. Do not repeat test in field!

Rules for field test:

Use appropriate test equipment which applies the voltage

with a slow ramp! Connect L1, L2 and L3 together as well as

all output poles.

The output voltage is floating and has no ohmic connection to ground.

To fulfill the PELV requirements according to EN60204-1 § 6.4.1, we recommend that either the + pole, the – pole or

any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in

which a load starts unexpectedly or can not be switched off any more when unnoticed earth faults occur.

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