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OPEN FRAME & ENCLOSED
PU300-PU500
216-500 WATTS DC/DC SINGLE
Features
• Over/under voltage alarm
• Convection cooled
• High efficiency
• Overvoltage and over current protection
• Operating temperature range -25°C to 55°C
• Reverse input voltage protection
• Extra output with series diode
ENVIRONMENTAL
Operating Temperature Range at 100% load: -25°C to +55°C
Conduction Cooling With derating: -25°C to +70°C
Storage Temperature Range -40°C to +85°C
STANDARDS AND APPROVALS
Safety standards IEC950, EN60950, CE LVD 73/23/EEC
C-Tick AS/NZS CISPR11 Group 1, Class A
EMC standards EN/IEC 61000-6-2,
EN/IEC 61000-4-2,
EN/IEC 61000-4-3,
EN/IEC 61000-4-4,
EN/IEC 61000-4-5,
EN/IEC 61000-4-6
EMI standards EN/IEC 61000-6-3
EN55011/EN55022 Level B
MECHANICAL
Dimensions (HxWxD) 86x210x232mm
Weight 4.2kg
Mounting brackets Please consult Powerbox for mounting
options
Specification
INPUT
Input ranges PU300: 10–30V (A), 20–60V (B), 50–150V (C),
90–270VDC (D)
PU500: 18–32V(24), 38–60V (48), 88–150V
(110), 175–300VDC (220)
Reverse input voltage protection Parallel diode, Code (A) (B) (24) (48)
Series diode, Code (C) (D) (110) (220)
OUTPUT
Output voltages See table
Min. output adjustment range
with 15 turn potentiometer
95%–110%
Typ. output ripple (80kHz)
V pk-pk
15mV
Source regulation 0.1%
Load regulation (0–100%
load) master
0.2%
Temperature coefficient 0.02% per °C
Current limit, rectangular 105%
Remote sense Yes
Transient recovery time for
10% to 90%
<3mS. Load step to within 3% of nominal
output voltage
Soft start Yes
Startup time, type 1 sec
Holdup time 2–25mS. Contact Powerbox
OPERATING
Efficiency PU300: 77%–88%, PU500: 88%–91%
Design topology Push-pull
Switching frequency 40kHz
ISOLATION TESTABLE LEVELS
Input/output: Input code
(A)(B)(24)(48)
(C)(D)(110)(220)
Input/case: Input code
(A)(B)(24)(48)
(C)(D)(110)(220)
2KVdc
4KVdc
2KVdc
4KVdc
Output/Case All Outputs 2kVDC