UL TEST REPORT AND PROCEDURE 	

Standard: 	UL 60950-1, 2nd Edition, 2014-10-14 (Information Technology Equipment - Safety - Part 1: General Requirements)
CAN/CSA C22.2 No. 60950-1-07, 2nd Edition, 2014-10 (Information Technology Equipment - Safety - Part 1: General Requirements)	
Certification Type: 	Component Recognition	
CCN: 	QQGQ2, QQGQ8 (Power Supplies for Information Technology Equipment Including Electrical Business Equipment)	

Product: 	DC-DC Converter 	
Model: 	AVD85B-48S12XXXXXXXXX, AVD75B-48S12XXXXXXXXX, AVD50B-48S12XXXXXXXXX (Where X may be represented by any ASCII character code, no safety impact.)	
Rating: 	AVD85B-48S12XXXXXXXXX
Input: 36-75VDC, 3.5A Max.
Output: 12VDC, 7.1A

AVD75B-48S12XXXXXXXXX
Input: 36-75VDC, 3.0A Max.
Output: 12VDC, 6.25A

AVD50B-48S12XXXXXXXXX
Input: 36-75VDC, 2.0A Max.
Output: 12VDC, 4.17A	

Applicant Name and Address: 	ASTEC INTERNATIONAL LTD 16TH FL LU PLAZA 2 WING YIP ST, KWUN TONG KOWLOON HONG KONG	

This is to certify that representative samples of the products covered by this Test Report have been investigated in accordance with the above referenced Standards. The products have been found to comply with the requirements covering the category and the products are judged to be eligible for Follow-Up Service under the indicated Test Procedure. The manufacturer is authorized to use the UL Mark on such products which comply with this Test Report and any other applicable requirements of UL LLC ('UL') in accordance with the Follow-Up Service Agreement. Only those products which properly bear the UL Mark are considered as being covered by UL's Follow-Up Service under the indicated Test Procedure. 

The applicant is authorized to reproduce the referenced Test Report provided it is reproduced in its entirety. 	

UL authorizes the applicant to reproduce the latest pages of the referenced Test Report consisting of the first page of the Specific Technical Criteria through to the end of the Conditions of Acceptability. 	

Any information and documentation involving UL Mark services are provided on behalf of UL LLC (UL) or any authorized licensee of UL. 	

Prepared by: 	Connie Tse	Reviewed by:	Patty Li	

Supporting Documentation 	
The following documents located at the beginning of this Procedure supplement the requirements of this Test Report: 	
A.	Authorization - The Authorization page may include additional Factory Identification Code markings. 	
B.	Generic Inspection Instructions -	
	i.	Part AC details important information which may be applicable to products covered by this Procedure. Products described in this Test Report must comply with any applicable items listed unless otherwise stated in the body of this Test Report. 	
	ii.	Part AE details any requirements which may be applicable to all products covered by this Procedure. Products described in this Test Report must comply with any applicable items listed unless otherwise stated in the body of each Test Report. 	
	iii.	Part AF details the requirements for the UL Certification Mark which is not controlled by the technical standard used to investigate these products. Products are permitted to bear only the Certification Mark(s) corresponding to the countries for which it is certified, as indicated in each Test Report. 	

Product Description 	
1. When installing these equipment, all requirements of the mentioned standard must be fulfilled.
2. Basic insulation is provided between the input circuit and output circuit.
3. The built-in converter shall be connected to a source which is insulated from the mains supply by min. reinforced insulation.	
	
Model Differences 	
Model AVD75B-48S12XXXXXXXXX which is identical to model AVD85B-48S12XXXXXXXXX except for the model name, input & output rating.

Model AVD50B-48S12XXXXXXXXX which is identical to model AVD85B-48S12XXXXXXXXX except for the model name, input & output rating.	
	
Technical Considerations 	
•	Equipment mobility : for building-in	
•	Connection to the mains : not directly connected to the mains	
•	Operating condition : continuous	
•	Access location : restricted access location	
•	Over voltage category (OVC) : OVC I / Others: 1500V	
•	Mains supply tolerance (%) or absolute mains supply values : N/A	
•	Tested for IT power systems : No	
•	IT testing, phase-phase voltage (V) : N/A	
•	Class of equipment : Not classified	
•	Considered current rating of protective device as part of the building installation (A) : Considered in the end system	
•	Pollution degree (PD) : PD 2	
•	IP protection class : IP X0	
•	Altitude of operation (m) : 5000m	
•	Altitude of test laboratory (m) : less than 2000 meters	
•	Mass of equipment (kg) : <1kg	
•	The product was submitted and evaluated for use at the maximum ambient temperature (Tma) permitted by the manufacturer’s specification of: 65°C 	
•	The following are available from the Applicant upon request: Installation (Safety) Instructions / Manual 	
•	The Clearances and Creepage distances have additionally been assessed for suitability up to maximum 5000m elevation. Clearance distance are calculated according to IEC60664-1 table A.2 multiplier factor is 1.48. 	
•	The module has been evaluated and tested in combination with a supplementary external fuse, Littelfuse type 453 series, rated 5A, 125Vdc for Models AVD85B-48S12XXXXXXXXX and AVD75B-48S12XXXXXXXXX, rated 4A, 125Vdc for Model AVD50B-48S12XXXXXXXXX during the component failure tests. The need for repeating these tests in the end-use application shall be considered if installed with a higher rated protective device. 	
•	External forced Air Cooling employed with minimum 800 LFM flowing the direction from Vin- to Vin+. 	
•	Basic insulation is considered and investigated between DC input circuits and DC output circuits. 	
	
Engineering Conditions of Acceptability 	
For use only in or with complete equipment where the acceptability of the combination is determined by UL LLC. When installed in an end-product, consideration must be given to the following: 	
•	The following Production-Line tests are conducted for this product: Electric Strength 	
•	The end-product Electric Strength Test is to be based upon a maximum working voltage of: Primary-SELV: 77.74 Vrms, 166 Vpk 	
•	The following secondary output circuits are SELV: All output 	
•	The following secondary output circuits are at non-hazardous energy levels: All output 	
•	The maximum investigated branch circuit rating is: 20 A 	
•	The investigated Pollution Degree is: 2 	
•	The following end-product enclosures are required: Mechanical, Fire, Electrical 	
•	The maximum continuous power supply output (Watts) relied on forced air cooling from: forced airflow with minimum 800 LFM flowing the direction from Vin- to Vin+. 	
•	The equipment shall be supplied from a source insulated from mains supply by double/reinforce insulation. 	
	
Additional Information 	
N/A	
Additional Standards 	
The product fulfills the requirements of: N/A	
Markings and instructions 	
Clause Title 	Marking or Instruction Details 	
Power rating - Company identification	
            Listee's or Recognized company's name, Trade Name, Trademark or File Number

            Power rating - Model
          	
            Model Number
          	
Special Instructions to UL Representative 	
N/A	

Production-Line Testing Requirements 	
Electric Strength Test Special Constructions - Refer to Generic Inspection Instructions, Part AC for further information. 	
Model	Component	Removable Parts	Test probe location	V rms	V dc	Test Time, s	
N/A							
	
Earthing Continuity Test Exemptions - This test is not required for the following models: 	

Electric Strength Test Exemptions - This test is not required for the following models: 	

Electric Strength Test Component Exemptions - The following solid-state components may be disconnected from the remainder of the circuitry during the performance of this test: 	

Sample and Test Specifics for Follow-Up Tests at UL 	
Model 	Component 	Material 	Test 	Sample(s) 	Test Specifics 	
N/A						

1.5.1 	TABLE: list of critical components 	Pass	
Object/part or Description 	Manufacturer/ trademark 	type/model 	technical data 	Product Category CCN(s) 	Required Marks of Conformity 	Supplement ID 	
PCB	Interchangeable	Interchangeable	Rated V-0, Min. 130°C 	ZPMV2	UL		
Transformer  CoreT1	Interchangeable	Interchangeable	Min.130°C, Embedded in PCB	--	--		
High voltage Capacitor C100	Johanson	X7R Series	Min. 125 °C, Min. 1500vdc	Tested in product	Tested in product		
Alternate	HOLY STONE	X7R Series	Min. 125°C, Min. 1500vdc	Tested in product	Tested in product		
Opto-coupler UOPTO1, UOPTO2	RENESAS ELECTRONICS CORPORATION (E72422)	PS2801-1 Series	Min. 100°C, Min. 1500vac	FPQU2	UL		
Alternate	Interchangeable	Interchangeable	Min. 100°C, Min. 1500vac	FPQU2	UL		
Baseplate (Option) 	Interchangeable	Interchangeable	Overall dimension Min. 33.0 x 23 x 3.2 mm	Tested in product	Tested in product		
Inductor L1	Artesyn / Astec	800-003147-XXXX (XXXX is any number which do not effect safety)	Min.130°C 	Tested in product	Tested in product		
Alternate	 3L	SMTDR32-1R2M-3A-C	Min.130°C 	Tested in product	Tested in product		
Alternate	 SUPERWORLD	PDC03021R0MAF	Min.130°C 	Tested in product	Tested in product		

Enclosures 	

Type	Supplement Id	Description	
Photographs	3-01	Overview	
Photographs	3-02	Top View	
Photographs	3-03	Bottom View	
Schematics + PWB	5-01	PWB layout	
Manuals	6-01	Instruction	
Miscellaneous	7-01	Label