PULS

Power supply 3-phase, 48 V dc Dimension Q Series

Puls Dimension Q is a series of power supplies with very small construction dimensions and many technical advantages.
The unit has low inrush current (even during warm start), active PFC, which provides a power factor close to one, extended temperature range, as well as active protection against mains transients. Furthermore, there is a relay output (DC OK) that falls when the output voltage deviates more than 10% from the set value.
The bonus power provides 50% extra reserve with retained voltage which is an advantage when connected loads have high starting currents. The unit also provides a high short-circuit current that simplifies tripping of secondary fuses. Both the bonus power and short-circuit current is limited to 4 seconds to avoid constant overloading of the power supply and wiring.
High efficiency for long life and low temperature. The power supply can be connected for two-phase operation Within up to +40°C. At higher temperatures, the load current is reduced.

 

We recommend clearance of 40 mm and 20 mm below the unit and 5 mm on the sides. (15 mm on the sides if adjacent products are a heat source).

 

 

Bonus power

The power supply has a bonus power that enables high power output with maintained 48 V dc for 4 seconds, which is a big advantage when connected loads have high starting current, e.g. motors. How often you can use the bonus power depends on the application. With the diagram and formula below you can calculate the available repeat time for each application. Bonus power is available as soon as the power supply starts and immediately after a short circuit

 

Bonus power

Operating cycle

Bonus effect diagram power supply QT20.361/ QT20.481

Duty cycle diagram power supply QT20.361/QT20.481

Po

Nominal load current

Ppeak

Peak current

To

Time between bonus power

Tpeak

Peak current I time

Operating cycle

Tpeak/ (Tpeak+To)

To

Tpeak- (operating cycle*Tpeak) / operating cycle

E.g. 48 V DC power supply Nominal load current (Po) is 7.5 A. Peak current (Ppeak) is 12A=120 %. Peak time is 3 seconds. 7.5 A=75 % of Inom. According to the diagram the operating cycle is 50%. To= 3- (0.5*3) / 0.5=3. Maximum repeat time of the bonus power is 3 seconds.

 

Read more
  • Output current of 10 A
  • Up to 94.8% efficiency
  • High short-circuit currents
  • Several protective filter
  • Maximum performance

Selected variant

Power supply QT20.361 / QT20.481 3-phase for DIN-rails 36 V DC / 48 V DC Utström 13 resp. 10A

POWER SUPPLY 48VDC 480W 10A

Art:

Selected variant

Specifications

Input voltage range Wide-range
Number of phases 3
Input voltage AC 380-480 V
Input voltage ac min 323 V AC
Input voltage ac max 552 V AC
Inrush current at 400 V ac typical 3 A
Power Factor at 400 V AC, full load. Typical 0,94
Supply Frequency 50-60 ±6 %
Power consumption at 400 V ac 0,79 A
Type Power Supply AC-DC
Output voltage 48 V DC
Output voltage min 48 V DC
Output voltage max 55 V DC
Output Current 10 A
Effect 480 W
Power Reduction Of 60 To 70 ° C 12 W/°C
Ripple. max 100 mV pp
Temperature Range Without Derating From -25 °C
Temperature Range Without Derating To 60 °C
Efficiency At 400 V AC. Typical 94,4 %
Efficiency At 400 V AC, full load. Typical 95,4 %
Lifetime at 400 V ac, full load and +40 ° C 51000 h
MTBF (IEC 61709) 400 V ac, max loan, +40 °C 690000 h
Width 65 mm
Height 124 mm
Depth 127 mm
Weight 0,87 kg
Clamp type Spring-clamp
Series Dimension Q
Approvals CB, CE, CSA US, cRUus, cULus, GL
DC relay output Yes
Material Protection Aluminium
Hold-up time at 400 V AC, full load. Typical. 22 ms
IP Class IP20
Active Transient Yes

Product description

Puls Dimension Q is a series of power supplies with very small construction dimensions and many technical advantages.
The unit has low inrush current (even during warm start), active PFC, which provides a power factor close to one, extended temperature range, as well as active protection against mains transients. Furthermore, there is a relay output (DC OK) that falls when the output voltage deviates more than 10% from the set value.
The bonus power provides 50% extra reserve with retained voltage which is an advantage when connected loads have high starting currents. The unit also provides a high short-circuit current that simplifies tripping of secondary fuses. Both the bonus power and short-circuit current is limited to 4 seconds to avoid constant overloading of the power supply and wiring.
High efficiency for long life and low temperature. The power supply can be connected for two-phase operation Within up to +40°C. At higher temperatures, the load current is reduced.

 

We recommend clearance of 40 mm and 20 mm below the unit and 5 mm on the sides. (15 mm on the sides if adjacent products are a heat source).

 

 

Bonus power

The power supply has a bonus power that enables high power output with maintained 48 V dc for 4 seconds, which is a big advantage when connected loads have high starting current, e.g. motors. How often you can use the bonus power depends on the application. With the diagram and formula below you can calculate the available repeat time for each application. Bonus power is available as soon as the power supply starts and immediately after a short circuit

 

Bonus power

Operating cycle

Bonus effect diagram power supply QT20.361/ QT20.481

Duty cycle diagram power supply QT20.361/QT20.481

Po

Nominal load current

Ppeak

Peak current

To

Time between bonus power

Tpeak

Peak current I time

Operating cycle

Tpeak/ (Tpeak+To)

To

Tpeak- (operating cycle*Tpeak) / operating cycle

E.g. 48 V DC power supply Nominal load current (Po) is 7.5 A. Peak current (Ppeak) is 12A=120 %. Peak time is 3 seconds. 7.5 A=75 % of Inom. According to the diagram the operating cycle is 50%. To= 3- (0.5*3) / 0.5=3. Maximum repeat time of the bonus power is 3 seconds.

 

Accessories

Related products

Contact us

Please contact us for more information.

Send e-mail Send e-mail

Logo

Cookies on oem.ee

Cookies help us improve your experience with us, so in order to be able to handle login information, offer you personalised content and for basic functionality of this website, we use some cookies.

Functional cookies

These cookies are necessary for the website to work and can not be turned off in our systems. They are usually used only in response to actions you have taken in connection with a service request, for example when setting personal preferences, logging in or filling out a form.

Analytics cookies

These cookies allow us to count the number of visits and traffic sources so that we can measure and improve our website performance. They help us know which pages are more or less popular and how visitors navigate around the site. The information that these cookies collect is aggregated and therefore completely anonymous. If you do not allow these cookies, we do not know when you have visited our website.

Marketing cookies

These cookies can be added by our partners. They can use them to create a profile of you, based on your interests, to show you more relevant information. They do not store any personal information - only information about your browser and device. If you do not accept these cookies, you will have a more general and less customized user experience.