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-48S05XXXXXXXXX

AVD75B-48S05XXXXXXXXX

AVD50B-48S05XXXXXXXXX

(Where X may be represented by any ASCII character code, no safety impact.)	
Rating: 	AVD85B-48S05XXXXXXXXX:
Input: 36-75VDC, 3.5A Max.
Output: 5VDC, 17A;

AVD75B-48S05XXXXXXXXX:
Input: 36-75VDC, 3.0A Max.
Output: 5VDC, 15A;

AVD50B-48S05XXXXXXXXX:
Input: 36-75VDC, 2.0A Max.
Output: 5VDC, 10A	

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: 	Paul Wan / Steven Doo	Reviewed by:	Henry Ho	

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 	
The unit is a DC to DC power converter with DC input and SELV output.  All electrical components are mounted on PWB.  The equipment implement airflow cooling direction from Vin+ to Vin-.  Basic insulation is provided between the input circuit and output circuit.  The means of connection and class of equipment will be considered in the end system.

Maximum operating ambient temperature of the unit is 65°C with full loading & air velocity 800 LFM cooling control method: from Vin+ to Vin-	
	
Model Differences 	
Model difference between AVD85B-48S05XXXXXXXXX  and AVD75B-4805XXXXXXXXX:
- Model AVD75B-48S05XXXXXXXXX which is identical to model AVD85B-48S05XXXXXXXXX except for the model name, input & output rating.  The input and output rating are controlled by secondary circuit component and connection.

Model difference between AVD85B-48S05XXXXXXXXX  and AVD50B-4805XXXXXXXXX:
- Model AVD50B-48S05XXXXXXXXX which is identical to model AVD85B-48S05XXXXXXXXX except for the model name, input & output rating.  The input and output rating are controlled by secondary circuit component and connection.	
	
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) : up to 5000 meters	
•	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 means of connection to the mains supply is: To be considered in end system, 	
•	The product is intended for use on the following power systems: Equipment was not directly connected to the mains;, , The connection should be considered in end system. 	
•	The equipment disconnect device is considered to be: To be considered in end system 	
•	The product was investigated to the following additional standards: EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 (which includes all European national differences, including those specified in this test report). 	
•	The following are available from the Applicant upon request: Installation (Safety) Instructions / Manual 	
•	The power supply in this equipment was: Investigated to IEC 60950-1. As part of the investigation of this product, the power supply and its test report were reviewed and found to comply with IEC 60950-1. 	
	
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 following secondary output circuits are SELV: 5VDC output 	
•	The following secondary output circuits are at non-hazardous energy levels: 5VDC output , 	
•	The power supply terminals and/or connectors are: To be considered in end system 	
•	The maximum investigated branch circuit rating is: The external UL-Listed (JDYX/7) Fuse, rated 5A, min. 75VDC. Also need considered in the end system. 	
•	The investigated Pollution Degree is: 2 	
•	Proper bonding to the end-product main protective earthing termination is: To be considered in end system 	
•	An investigation of the protective bonding terminals has: To be considered in end system 	
•	The following magnetic devices (e.g. transformers or inductor) are provided with an OBJY2 insulation system with the indicated rating greater than Class A (105°C): T3 (Class F) 	
•	The following end-product enclosures are required: Mechanical, Fire, Electrical 	
•	The equipment is suitable for direct connection to: a source which is insulated from the mains supply by double or reinforce insulation. 	
•	The built-in converter isn’t intended to be repaired by service personnel in case of failure or component defect (unit can be thrown away). 	
•	The built-in converter has no in-line fuse. For safe operation, an external UL-Listed (JDYX/7) fast acting fuse rated 5A, min.75Vdc for model AVD75B/85B-48S05XXXXXXXXX and an external UL-Listed (JDYX/7) fuse rated 4A, min.75Vdc for model AVD50B-48S05XXXXXXXXX must be employed as input line fuse before installation. 	
•	Maximum ambient temperature around the DC-DC converter must not exceed 65°C with air velocity 800LFM air direction from Vin+ to Vin-. 	
	
Additional Information 	
N/A	
Additional Standards 	
The product fulfills the requirements of: EN 60950-1:2006 + A1:2010 + A11:2009 + A12:2011 + A2:2013 (which includes all European national differences, including those specified in this test report)	
Markings and instructions 	
Clause Title 	Marking or Instruction Details 	
Power rating - Ratings	
            Ratings (voltage, frequency/dc, current)

            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	
All model covered in this report	--	--	Input to Output	-	1500	1s	
	
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 	--	--		
Core T1	Interchangeable	Embedded in PCB	Min.130°C;  Planar Transformer	--	--		
High voltage Capacitor C100	Johanson	X7R Series	Min. 1500vdc	--	--		
Alternate	HOLY STONE	X7R Series	Min. 1500vdc	--	--		
Opto-coupler UOPTO1	RENESAS	PS2801-1 Series	Min. 1500vdc	FPQU2
(E72422)	--		
Alternate	Interchangeable	Interchangeable	Min. 1500vdc	--	--		
Baseplate (Option) 	Interchangeable	Interchangeable	Overall dimension Min. 33.0 x 22.9 x 2.0mm	--	--		
Transformer T3	 Artesyn / Astec	800-003148-XXXX or 800-001703-XXXX (XXXX is any number which do not effect safety)	Provided with Class F insulation system under E94225, OBJY2, designed 155-10C	XORU3 (E127000)	--		
Alternate	JI ZHI CHUAN	HC3-3 or HC3-1	Provided with Class F insulation system under E94225, OBJY2, designed 155-10C	XORU3 (E127000)	--		
Alternate	High light	ADS503341BT1 or SMD03H2142	Provided with Class F insulation system under E94225, OBJY2, designed 155-10C	XORU3 (E127000)	--		
Alternate	DAY ONE	T3-436	Provided with Class F insulation system under E94225, OBJY2, designed 155-10C	XORU3 (E127000)	--		
Inductor L1	Artesyn / Astec	800-003147-XXXX (XXXX is any number which do not effect safety)	Min.130°C 	--	--		
Alternate	 3L	 SMTDR32-1R2M-3A-C	Min.130°C 	--	--		
Alternate	 SUPERWORLD	 PDC03021R0MAF	Min.130°C 	--	--		

Enclosures 	

Type	Supplement Id	Description	
Photographs	3-01	Outline view of unit	
Photographs	3-02	Outline view of unit	
Photographs	3-03	Outline view of unit	
Schematics + PWB	5-01	PWB layout	
Manuals	6-01	installation and operating instruction	
Miscellaneous	7-01	cooling system layout