ACC600-1T48

The ACC600 Series of open frame power supplies feature a wide universal AC input range of 85 – 264 VAC, offering up to 600 W of output power with convection cooling (U-Channel), in a compact footprint, with a variety of single output voltages. 

The high efficiency and high power density of the ACC series ensures minimal power loss in end-use equipment, thereby facilitating higher reliability, easier thermal management and meets regulatory approvals for environmentally-friendly end products. 

These power supplies are ideal for medical, telecom, datacom, industrial equipment and other applications. 

- 5 x 8.5 x 1.61 Inch Form Factor 

- Convection Cooling Rated 

- Universal Input 

- Current Sharing 

- Open Frame 

- Peak Power Capability 

- 5 V Stand by Provision 

- Instrumentation 

- Lighting 

- Industrial Applications 

- Applied Computing 

- Renewable Energy 

- Test and Measurement 

- Robotics 

- Wireless Communication 

ACC600 Series 

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|---|---|---|---|---|---|
|ACC600-1T12|12 V|U-Channel|25 A|0.0 A|2%|
|ACC600-1T15|15 V|U-Channel|25 A|0.0 A|2%|
|ACC600-1T24|24 V|U-Channel|25 A|0.0 A|2%|
|ACC600-1T30|30 V|U-Channel|20 A|0.0 A|2%|
|ACC600-1T48|48 V|U-Channel|12.5 A|0.0 A|2%|
|ACC600-1T58|58 V|U-Channel|10.34 A|0.0 A|2%|

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* To order product without the redundancy diode option please add the suffix-Sxxx to your required part number. Please contact the factory for availability. 

Specifications are for nominal input voltage, 25°C unless otherwise stated. 

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|---|---|---|---|
|Input Voltage|Universal|85 – 264 VAC / 120 – 390 VDC|
|Input Frequency|47 – 63 Hz|
|120 VAC:|6.5 A max.|
|Input Current|240 VAC:|3.2 A max.|
|Input Protection|In Live & Neutral both|F16 A / 250 V|
|Over entire input range with main output kept|OFF|using|
|No Load Power|Remote ON/OFF|3 W typ.|
|Over entire input range with main output kept|ON|using|6 W typ.|
|Remote ON/OFF|
|Inrush Current|240 VAC:|25 A max.|
|120 VAC:|0.98|
|Power Factor|
|240 VAC:|0.95|
|PFC converter: Variable|85 kHz typical|
|Switching Frequency|Resonant converter: Variable|100 kHz typical|

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|---|---|---|---|
|Output Power|Convection|600 W|
|120 VAC:|88% Typical|
|Efficiency|240 VAC:|93%|
|Hold-up Time|120 VAC / 240 VAC:|8 ms|
|Line Regulation|+/-0.5%|
|Load Regulation|+/-1.0%|
|< 10%,|
|Transient Response|50% to 100% load change, 50 Hz, 50% duty cycle, 0.1 A/|μ|s|
|recovery time < 5 ms|
|Voltage Adjustment|+/-3%|
|Set Point Tolerance|+/-1%|
|Rise Time|<100 ms|
|Over Current Protection|Hic-Up Type, autorecovery|110%|
|Over Voltage Protection|Latch Type, AC Power to be recycled for recovery|114%|
|Short Circuit Protection|Latch Type, AC Power to be recycled for recovery|
|Over Temperature Protection|Autorecovery|130 - 140°C primary heat sink|
|Current Share|Up to 3 supplies connected in parallel (optional)|

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tech.support@psbel.com 

ACC600 Series 

3 

Figure 1. Power Derating Curve 

Figure 2. Power Derating Curve: w. r. t. Input 

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1. For Ripple measurement minimum output power requirement is 25 W. 

   - Ripple is peak to peak with 20 MHz bandwidth and 10 µF (Tantalum capacitor) in parallel with a 0.1 µF capacitor at rated line voltage and load ranges. Please contact factory/ sales representative for minimum load required for ripple to be within specification. 

2. Combined output power of main output, fan supply and standby supply shall not exceed max. power rating. 

3. Standby output voltage 5 V / 1.5 A (convection) with tolerance including set point accuracy, line and load regulation is +/-10%. Ripple and noise is less than 5%. 

4. Specifications are for nominal input voltage, 25°C unless otherwise stated. 

5. PSU is supplied with J3, pin-6 and pin-7 shorted to enable main output without remote on/off feature. 

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© 2018 Bel Power Solutions & Protection 

BCD.00970_004 

ACC600 Series 

4 

|Operating Temperature|Refer to derating curve|-40 to +70°C|
|---|---|---|
|Storage Temperature||-40 to +85°C|
|Relative Humidity|Non-condensing|5% to 95%|
|Altitude|Operating:<br>Non-operating:|16,000 ft.<br>40,000 ft.|
|MTBF|Telcordia -SR332-issue 3|1.28 million hours|



|Conducted Emissions|EN55032|Class B|
|---|---|---|
|Radiated Emissions|EN 55032|Class A (Class B external toroid)|
|Input Current Harmonics|EN 61000-3-2|Class A|
|Voltage Fluctuation and Flicker|EN 61000-3-3|Pass|
|ESD Immunity|EN 61000-4-2|A|
|Radiated Field Immunity|EN 61000-4-3|A|
|Electrical Fast Transient Immunity|EN 61000-4-4|A|
|Surge Immunity|EN 61000-4-5|A|
|Conducted Immunity|EN 61000-4-6|A|
|Magnetic Field Immunity|EN 61000-4-8|A|
|Voltage Dips, Interruptions|EN 61000-4-11|A & B|



|Isolation Voltage|Input to Output<br>Input to Earth|4000 VDC<br>2500 VDC|
|---|---|---|
|Safety Standard(s)<br>Agency Approvals|IEC/EN 62368-1, ED 2<br>UL62368-1, CSA C22.2 No. 62368-1<br>Nemko, UL, C-UL|Pending<br>Pending|
|CE mark|Complies with LVD Directive|Pending|



||Power Good: Is a TTL signal which goes high after main output reaches 90% of its set value.|
|---|---|
|Power Good / Fail Signal|The delay is 0.1 s to 0.5 s|
||Power Fail: The same signal goes low at least 1ms before main output falls to 90% of set value at AC Power off|
|Remote Sense|Compensates for 200 mV drop|
|Remote On / Off|Pin 6 & Pin 7 of J3 can be used for Remote on/off.<br>Shorting Pin 6 to Pin 7 enables main output while keeping the pins open disables main output|
|OCP Limit Set|Pin 8 & Pin 9 of J3 must be left open|



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5 

## ACC600 Series 

Figure 3. Power Good / Fail Signal Diagram 

|||Pin 1|AC Line||
|---|---|---|---|---|
|AC Input Connector|J1|Pin 2|Neutral|TE Connectivity: NC6-P107-03|
|||Pin 3|Earth||
|||||6-32 inches Screw Pan HD|
|||||Mating: Designed to accept Ring Tongue Terminal AMP: 8-31886-1,|
|DC Output<br>Connector|J2|J2-A<br>J2-B|+VE<br>-VE|wherein one 16 AWG (max) wire can be crimped.<br>Note: One Ring Tongue Terminal with 16 AWG is recommended for|
|||Pin 1|GND|current up to 11 A only.<br>Use multiple tongue terminals with wire for more current.|
|||Pin 2|5V AUX||
|||Pin 3|PGPF||
|||Pin 4|VS –||
|Aux (Fan) Output|J31|Pin 5<br>Pin 6|VS +<br>GND|Molex: 22-23-2101<br>Mating: 22-01-2107; Pins: 08-50-0113|
|||Pin 7|RMT||
|||Pin 8|CL2||
|Fan Output|J10, J11|Pin 9<br>Pin 10<br>J10, J11<br>Pin 1<br>Pin 2|CL1<br>LS<br>+VE<br>-VE||



|Weight<br>Dimensions|approx. 1100 g<br>127 x 216 x 41 mm (5.0 x 8.5 x 1.61 inches)|
|---|---|
|Cooling|Convection: 600 W (U-Channel)|



1 PSU is supplied with J3, pin-6 and pin-7 shorted to enable main output without remote on/off feature. 

## HORsees bel SOLUTIONSPOWER & 

**Asia-Pacific Europe, Middle East North America** +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2018 Bel Power Solutions & Protection 

BCD.00970_004 

ACC600 Series 

6 

Figure 4. Mechanical drawings 

tech.support@psbel.com 

7 

## ACC600 Series 

During the installation and setup of parallel supplies in a system it is important that a single remote sense point be used for all the supplies. The remote sense voltage between the supplies must be adjusted to within 1% to ensure the supplies are inside the 1% capture window. If the supplies are not initially adjusted inside the capture window the supplies will not current share satisfactorily. 

## **SET-UP PROCEDURE:** 

1. Connect load cables to the outputs of each supply. 

2. Connect the remote sense lines to the load in twisted style. (A common remote sense point must be used for all the supplies in parallel). 

3. Connect all the “LS” signal (Pin 10) on the J3 connector between the supplies. 

4. Adjust remote sense voltage of each supply to within 1% of rated output voltage or readjust to required set point. (Adjustment to be done with all other parallel supplies off). 

5. Current sharing between the supplies can be verified by monitoring the output current of each supply with a hall effect DC current probe. The supplies should share to within 10% of the total load current. 

6. The current share circuit has a capture window voltage of +/- 1% of the rated output voltage. If the output remote sense voltage of one of the supplies is adjusted outside the 1% window the supplies will not current share satisfactorily. 

Figure 5. Current Sharing Block Diagram 

**NUCLEAR AND MEDICAL APPLICATIONS** - Products are not designed or intended for use as critical components in life support systems, equipment used in hazardous environments, or nuclear control systems. 

**TECHNICAL REVISIONS** - The appearance of products, including safety agency certifications pictured on labels, may change depending on the date manufactured. Specifications are subject to change without notice. 

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**Asia-Pacific Europe, Middle East North America** +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2018 Bel Power Solutions & Protection 

BCD.00970_004