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AC-DC & DC-DC POWER SUPPLIES
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1U Switching Regulated Power Supplies
RACK MOUNTING & BENCHTOP

Switching Power Supplies (to 750 watts)
Power Factor Correction and Universal Input

AC-DC wide adjust output
with optional auxiliary output (to 180 watts)

SPECIFICATIONS

WARNING: HIGH LEAKAGE CURRENT. EARTH CONNECTION ESSENTIAL BEFORE CONNECTING SUPPLY.

Input Voltage: 95-265 VAC, 49-420 Hz, single phase.
AC Input, max.: 8A (450W), 12A (720W)

Inrush current: Cold start, (thermistor limiter) 33A peak @115 VAC (typical); 65A peak @ 230 VAC (typical). (Not recommended for use on ground fault protected circuits.)

Startup Time: 800 mS (typical).

Input Undervoltage: An input of less than 95 VAC will not damage power supply.

Power Factor: 0.99 typical at 115 VAC, 60Hz and full load. Complies with EN61000-3-2.

Regulation (in constant voltage mode):
Line Regulation: ±0.05% or 5 mV, whichever is greater.
Load Regulation: ±0.05% or 5 mV, whichever is greater.

Regulation, Ripple (in constant current mode):
Line Regulation: ±0.2% or 30mA.
Load Regulation: ±0.5% or 100mA.
Current Ripple: 0.5% rms.

Regulation, Ripple (in ‘N+1’ or ‘P’ mode):
Line Regulation: ±0.1% or 50 mV, whichever is greater.
Load Regulation: ±0.1% or 50 mV, whichever is greater.
Ripple: 2x rating in tables (Rack Mounting, Benchtop).

Ambient Operating Temperature: 0 to +71°C.

Temperature Coefficient (after 30 minute warm-up):
Voltage mode; ±0.02%/°C (typical).
Current mode; ±0.1%/°C (typical).

Drift (voltage mode or current mode): ±0.1% (typical) over 8 hours, after 30 minute warmup.

Storage Temperature: –40 to +85°C.

Holdup Time: 20mS minimum with full load.

Transient Response: 3 ms to return to ±1% of output setting. Maximum of ±3% output excursion following a load step change from 50% to 100%.

Efficiency: See output specs for Rack Mounting or Benchtop models. (Typical, at 115 VAC, with full load.)

Polarity: Output is floating and may be used in either polarity.

Remote Sensing: Compensates up to 0.5 Vdc drop per output line (or within the limits of the output voltage adjustment range). (Wide Adjust models compensate up to 0.5 Vdc drop per output line.) Present on both primary and auxiliary outputs.

Output Adjustment: Voltage and current adjustments are accessible through the rear panel. Output adjustment may also be controlled by using remotely located potentiometers. No current adjustment for auxiliary output.

Output Programming: The output voltage and current may be programmed from 0 to full rating by means of control voltage inputs of 0 to +10Vdc (0 to +5Vdc for models with option “C5”). Voltage mode accuracy: 0.5%. Current mode accuracy: 3% for models with greater than 10 amps output current and 4% for models with less than 10 amps output current. Accuracy percentages do not apply below 5% of output rating. NOTE: If “C1” and “DIO” options are both present, rear panel output programming is disabled.

Voltage Monitor Terminal: Permits remote monitoring of output voltage, stepped down by a ratio of 10:1 (for 3.3v to 90v models) or 100:1 (for 100v to 135v models). Accuracy is 0.5% of maximum rated output voltage.

For models with 0-5v programming option “C5”: Permits remote monitoring of output voltage, stepped down by a ratio of 10:1 (for 3.3v to 45v models) or 100:1 (for 48v to 135v models). Accuracy is 0.5% of maximum rated output voltage.

Current Monitor Terminal: For models with greater than 10 amps output current: permits remote monitoring of output current, stepped down by a ratio of 100 mV/Amp (accuracy is 3% of maximum rated output current). For models with less than 10 amps output current: permits remote monitoring of output current, stepped down by a ratio of 1000 mV/Amp (accuracy is 3% of maximum rated output current).

For models with 0-5v programming option “C5”: For models with greater than 45 amps output current: permits remote monitoring of output current, stepped down by a ratio of 10 mV/Amp (accuracy is 5% of maximum rated output current). For models with less than 45 amps output current: permits remote monitoring of output current, stepped down by a ratio of 100 mV/Amp (accuracy is 3% of maximum rated output current).

Overload/Short Circuit Protection: A short or overload forces the power supply into constant current mode, with automatic recovery.

Overvoltage Protection: Latches power supply OFF, reset by momentarily removing AC input power. (Models with ‘N’ option reset automatically.)

Thermal Protection: Thermostat(s), self-resetting.

Internal Failure Protection: Provided by internal fuse.

Output Inhibit: Applying between +3 and +15 Vdc to the Inhibit terminal will disable the supply. ‘Output Enable’ is also available (see Options).

Switching Frequency: 110 kHz (typical).

EMI: Designed to meet FCC Part 15, EN61326-1 and EN55022, ClassA.

Dielectric Withstand Voltage       Isolation
---------------------------------------------
Input to output:     4242 Vdc      300 Vdc 
Input to case:       2121 Vdc      300 Vdc 
Output to case:       750 Vdc      300 Vdc 

Cooling: Forced-air cooled. Air enters front of power supply and exits from rear cover. Fan speed is controlled by thermostat. High Speed Fan noise rated at 48dB for 450w models and 54dB for 720w models.

Size and Weight:
Case   | Rough                        |  Approx. 
Size   | Dimensions (inches)          |  weight 
-------|------------------------------|-------------
1U13     1U x 19" panel, 14.0" deep      6 lb. 7 oz.
----------------------------------------------------
1B13     1U x 17" panel, 14.0" deep      6 lb. 7 oz.
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See Drawing for exact dimensions

Mounting: Rack Mounting models are designed expressly for mounting in standard 19" wide RETMA cabinet racks. Benchtop models rest on four rubber feet.