Technical Specifications

450W
Model 628HS
Isolated Sealed DC-DC Converter
Design Features
- Wide Range Input Voltage
- High Efficiency Design
- Hi Ingress Rating, IP 676
- Adjustable Output Voltage
- Optional Remote Output Voltage Sensing
- Optional Remote On/Off switching
- Low Voltage cutout
- High Voltage cutout
- Electronically Current Limited
- Thermally Protected
- Low No Load Power Consumption
- I/O Bayonet Quick Connection
MODEL NO.
628 HS
NOMINAL INPUT VOLTAGE RANGE 12 VDC to 28 VDC
10.5 to 32.0 (+,- 0.5) VDC
INPUT CURRENT AT 15A OUTPUT CURRENT 38A @ 11.5 Vin; 26.0 Vout
< 150 mA over entire input/output voltage range
OUTPUT VOLTAGE NOMINAL 26.0 VDC (factory adjusted)
16.0 VDC to 28.0 VDC (internally accessible to user)
<1.6% (with local sensing)
<30 mV (with remote sensing)
<2%
OUTPUT RIPPLE 50 mV RMS at maximum load (measured at 25C)
450 W
POWER SURGE 550 W
MAXIMUM LOAD CURRENT 15 ADC, for output voltage setting 16.0 VDC - 28.0 VDC
EFFICIENCY Not less than 90% over entire operating range
< 10.5 +/-0.3 VDC
HIGH INPUT VOLTAGE SHUTDOWN > 32.0 +/- 1.0 VDC
Set to shut off at 110% of maximum current
with continuous automatic retry
OVER TEMPERATURE SHUTDOWN Via internal thermostat, self resetting
By Conduction through base plate and convection
FUSING Customer accessible by front panel removal
Via pin to negative return on input connector,
may be disabled via internal jumper
Via 2 pins on the output connector
usage is optional
OPERATING HUMIDITY 100%
MOUNTING SLOT CENTERS (in./cm.) 6.0 x 7.3 / 15.2 x 18.5
9.5 x 8.0 x 2.9 / 24.1 x 20.3 x 7.4
HOUSING MATERIAL All Aluminum
WEIGHT, (lb./kg.) 7.0 / 3.2
NOTE: Specifications are subject to change without notice.
Rev 1/15/2019
IP 676
-40C to 70C, 100% loading
MAXIMUM CONTINUOUS OUTPUT POWER
OUTPUT VOLTAGE REGULATION
OUTPUT VOLTAGE ADJUSTMENT RANGE
INPUT CURRENT AT NO LOAD
MAXIMUM INPUT VOLTAGE RANGE
Via 9 pin Bayonet connector
INPUT/ OUTPUT CONNECTION
GENERAL
OVERLOAD SHUTDOWN
INPUT
CONNECTIONS
OUTPUT LOAD REGULATION
REMOTE SENSE
REMOTE TURN ON
PROTECTION
OUTPUT
OPERATING TEMPERATURE RANGE
INGRESS RATING
DIMENSIONS, (in./cm.) (L x W x H)
COOLING
LOW INPUT VOLTAGE SHUTDOWN
SEC America Corp.
SECAmericaCorp. www.secamerica.com 1(802)8658388[e-mail]