48V 3A switching power supply

Brand : Cassspower
Product origin : Shenzhen, China
Delivery time : 30 days
Supply capacity : 50K

48V 3A switching power supply

Feature:

·Wide range input from 100~240Vac .

·105℃ output capacitor.

·Built-in EMI filter, low ripple .

·Protections: Short circuit / Over current / Over voltage/Over load, it is reliability and stability.

·High efficiency is ≥85% .

·Complete protection function with high precision constant output current, low noise as well.

·The most economical & useful power supply with low wattage,100% full load burn-in test.

·Soft startup power supply, effectively reduce the impact degree of AC input.

·2 years warranty.

P.S: Constant voltage power supply for industrial using;


Electrical Requirements

1.1

Input Requirements

Item

Project

Technical Specifications

Unit

1.1.1

Input Voltage

200240

Vac

1.1.2

Input Voltage Range

180264

Vac

1.1.3

AC Input Voltage Frequency

47~63

Hz

1.1.4

Surge current

≤20

A

1.1.5

Max Input Current

2

A

1.1.6

Efficiency

≥85%


1.2

Output Requirements

Item

Project

Technical Specifications

Unit

1.2.1

Output Voltage

48

Vdc

1.2.2

Output Voltage Range

47.52~48.96

Vdc

1.2.3

Load Output Current

3

A

1.2.4

Rated power

0

W

1.2.5

stabilized voltage precision

±3%


1.2.6

PFC Value

≥0.9


1.2.7

Ripple & Noise

≤300

mVp-p

1.2.8

ON/OFF overshoot amplitude

±10%


1.2.9

Dynamic


Response

Overshoot amplitude

±10%


Recovery time

t≤200

µS

1.2.10

Voltage Regulation

3


1.2.11

Load Regulation

3


1.2.12

Start Time

200

mS

1.2.13

Hold up Time

≥10

mS

1.3

Protection

Item

Project

Technical Specifications

Unit

1.3.1

Over voltage

Protection point

≤60

Vdc

1.3.2

Over load

Protection point

3.5~6.5

A

1.3.3

Output short circuit

Hiccup and re-power; recovers automatically after fault condition is removed


Isolation &Safety Requirements

Item

Project

Technical Specifications/

Testing Condition

2.1

Electrical strength

Input &Output

3000Vac(4240Vdc)/10mA/1min

Input&earth connection

1500Vac(2120Vdc)/10mA/1min

Output&earth connection

500Vac(707Vdc)/10mA/1min

2.2

Insulation resistance

Input &Output

50MΩ@500Vdc

Output&earth connection

50MΩ@500Vdc

Input&earth connection

50MΩ@500Vdc

2.3

Safety approval

Approved by EN60950GB4943 etc. Safety standards.


EMI/EMC Requirements

Item

Project

Technical Specifications/

Testing Condition

3.1

EMI

Conduction disturbance emission

CLASS B

Radiation disturbance emission

CLASSB

3.2

EMS

Electrostatic discharge immunity

Air discharge 8KV, Contact discharge 6KV, Criterion Bsystem

Electric Fast Transient Burst Anti-interferen

LEVEL 3 criterionAsystem

Surge immunity

LEVEL 3 criterionAsystem

Voltage sag, short time interrupt and slowly varying immunity

Select by standard

*PS:Testing criterion is formulated according to the system requirements


Environmental Requirements

Item

Project

Technical Specifications

Unit

4.1

Working TEMP.

-10+40

4.2

Storage TEMP.

-20+85

4.3

Working Humidity

10%95% (RH)

4.4

Storage Humidity

5%95% (RH)

4.5

Altitude

≤3000

m

4.6

Cooling mode

Cooling with built-in DC fan


Environmental Test & Reliability Requirements

Item

Project

Technical Specifications

5.1

High temperature working

+40 8hrs

5.2

Low Temperature working

-10 8hrs

5.3

High temperature storage

+70 24hrs

5.4

Low temperature storage

-20 24hrs

5.5

Steady-state damp heat test

5.6

High-low temperature cycling test


Mechanical structure

Item

Project

Technical Specifications

Unit

6.1

Dimension

199*98*38

mm

6.2

PCB Dimension

193*95

mm

6.3

Output connecting terminal

11P/9.5mm Pitchrefer to the figure1

6.4

Package

Carton


Attached PCB Drawings and Tables (Unit:mm,Error:±0.5mm)


Attached Unit Case Drawings and Tables(Unit:mm,Error:±0.5mm)


figure1

Output connection terminal definition

Output terminal using 11PIN/9.5mm Pitch connection terminal,turn pin sequence shown as the following table.

CON1 Connecting pin function


Turn pin NO.

Definition

Function

1

N

AC input zero line

2

L

AC input fire line

3

PE

Input & earth connection

45

-V

Negative output voltage

67

V

Positive and of output voltage


Packaging and Transport :

Standard export carton. Each piece is packed by vacuum plastic bag into a inner box then 48pcs to a carton.

Delivery Detail: 5-15working days against payment.


Our Services

1. Any inquiries will be replied within 24 hours;

2. Professional manufacturer , welcome to visit our website;

3. OEM/ODM available:

a) Print logo on our products

b) Customized specification

c) Customized color package box

d) Any your idea on our products,we can help you to design and put it into production

4. High qulity,fashion design,reasonable&competitive price,fast lead time

5. After-sale service:

a) All products will have been strictly quality checked in test house before packing

b) All products will be well packed before shipping

c) All products have 1-2 years warranty, and we sure the products will be free from maintenance within warranty period

6. Faster delivery:

Sample order in stock, and 3-7days for bulk production

7. Payment term:

L/C T/T open account transaction, westion union & paypal


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