4-40 threaded holes provided mounting. Holes mounting surface must ali

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4-40 threaded holes provided mounting. Holes mounting surface must ali

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MINI ENCAPSULATED SWITCHING POWER SUPPLIES INSTALLATION OPERATION
4-40 threaded holes provided mounting. Holes mounting surface must alignment with power supply mounting holes mounting screws should tightened excessively; otherwise resultant stress damage case. Board mounting models: mounted directly Board. accessory Socket (model ELW-1) also available. Models with screw terminals: Threaded mounting holes permit mounting chassis, cabinet wall bracket, they used test bench tabletop; accessory Mounting Kits used: Wall Mounting: accessory Mounting (model EB4) available enable mounting power supply when opposite side mounting surface inaccessible. This consists aluminum plate four screws attaching power supply, effectively adding mounting flanges power supply. rail mounting: When rail mounting desired, accessory Mounting EB35DIN. This consists aluminum plate, with clips attached four screws attaching plate power supply. power supply then snapped onto 35mm "top hat" type rail. Even relatively small amount free around power supply will significantly reduce rise temperature resulting from operation, therefore temperature critical components within improving both reliability stability. Input voltage: 85-130 VAC, 47-420 single phase, 120-180 Vdc. input connected without regard polarity. ground terminal safety lowest output noise. Make connections before applying input power. Output voltage adjustment: output factory within nominal output voltage rating volt models, within nominal output voltage rating volt models. necessary, output voltage more precisely calibrated using external trim resistor connected between output decrease voltage, between output increase voltage. Begin trimming with approximately megohm resistance, decrease resistance until calibration attained. Trimming output voltage other than nominal rating adversely affect performance result damaging supply. there possibility voltage from another source (another power supply, battery, transients, etc) being applied power supply's output terminals, protect power supply using diode series with output leads. attempt directly parallel outputs power supplies. This would result current flowing from higher-set output into lower-set output, probable damage both circuits. Outputs connected series obtain higher voltage provided that reverse-biased diode, having current ratings exceeding combined output, used across each output; however, keep mind that output current drawn cannot exceed output current rating lowest rated supply used. input power contains large voltage spikes (`noise') induced switching high currents, inductive loads, electro-mechanical components, etc., input power leads supply should include some means transient suppression. Otherwise, portion noise coupled through supply load. Also, supply could damaged. means suppression that easiest install capacitor metal oxide surge suppressor (MOV) across input terminals supply. extremely severe cases, chokes series with each side line also required.
Board Mounting
Mounting wall mounting
4.31" 3.87" Mounting plate
With Screw Terminals
4-40 screw connections(6)
1.25 (ELW-13) 2.00 (ELW-20)
2.5" 1.8"
.375 (Typ.)
TRIM connection
Miniaturized Power Supply
Dia.
.140" Dia. holes plate mounting
(.062" thick)
2.70 2.30
Mounting EB35DIN rail mounting
3.62
.185
TRIM connection
2.50 1.00 2.20
1.625 (EBW-13) 2.375 (EBW-20)
2.62
2.20 2.50 MOUNTING HOLES 4-40 0.375" Deep 3.20 3.50
(.125" thick)
3.20 3.50
Accessory Socket ELW-1
4.25 3.87
MOUNTING HOLES(4-40 0.2") ELW-13 case size: holes ELW-20 case size: holes
.140" Dia. holes Socket mounting
Case Size ELW-13 ELW-20
Approx. Weight
Case Size EBW-13 EBW-20
Approx. Weight
complete Acopian catalog available Internet www.acopian.com
P.O. 638, Easton, 18044 Phone: (610) 258-5441 FAX: (610) 258-2842
Rev2

4-40 threaded holes provided mounting. Holes mounting surface must ali

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