QT20.481

Q-Series

Oct. 2006 / Rev. 1.0 DS-QT20.481-EN

All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

9/23

Fig. 12-1 Functional diagram

+

+

-

-

V

OUT

DC

ok

Output

Over-

Voltage

Protection

PFC

Converter

Input Filter

Input Rectifier

Inrush Limiter

Transient Filter

Output

Voltage

Regulator

Power

Converter

Output

Filter

DC ok

Relay

Output

Voltage

Monitor

Output

Power

Manager

Temper-

ature

Shut-

down

Over-

load

DC

ok

L2

L3

L1

Fig. 13-1 Front side

Output voltage potentiometer

(multi turn potentiometer)

Open the flap to tune the output voltage.

Factory setting: 48.0V

DC-ok lamp (green)

Overload lamp (red)

Output Terminals

Quick-connect spring-clamp

terminals, no tools required

+

Positive output

-

Negative (return) output

Dual pins per pole

DC ok Relay contact

(NO-contact)

Overload

lamp

DC-ok

lamp

DC-ok

contact

Normal mode

OFF

ON

Closed

480W Continuous power /

720W Peak power

BonusPower

®

mode

OFF

ON

Closed

Overload

(V

ON

OFF

Open

Short-circuit

(V

ON

OFF

Open

Over-

temperature

OFF

ON

Open

Input Terminals

Quick-connect spring-clamp

terminals, no tools required

L1, L2, L3 Line inputs

... PE (Protective Earth) input

No input power

OFF

OFF

Open

See chapter 14 “Terminals and

Wiring” to choose appropriate

wire gauges

DC-ok lamp and DC-ok contact

function synchronized