M8245A
Power Supply Module
Description
The M8245A power supply module offers switchmode power to the 8200 Series mainframes. The switchmode supplies operate on 115V/60Hz to 230V/50Hz without any special setup and require 130 VA maximum. The M8245A is CSA approved, runs with low noise, and is interchangable between frames. One power supply is required per frame. Two power supplies are required for redundancy.
Specifications
Input
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Input Isolation2250 VDC input to chassis 4300 VDC input to output, 8mm spacing 500 VDC output to
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RFI SuppressionMeets requirements for EN 55022 Class A Conducted emissions as a minimum
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Input Current3.3A rms max.
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Input VoltageUniversal 85-264VAC, 47-63Hz
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Thermal FuseInternal
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Input ProtectionInrush current limiting
General
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Heatsink Plate9.459"L x 2.575"W
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Package SizeOpen frame unit 10.5" L x 2.6"W x componentheight 1.5" above PCB
Output
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Load Regulation+/- 5% from 10% load to full load for bothoutputs with redundancy diodes
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Output Ripple VoltageBetter than 40mVrms or 200mVpp (20Mhz BW)for both outputs, 60Hz ripple is
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Operating Temperature Range0 - +50 degree C for full specifications with natural convection cooling
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Temperature Drift0.03% per degree C over operating temp. range
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Line Regulation.0.5%
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Output Voltage/Current+21VDC @ 4Amp, -21VDC @ 3Amp
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EfficiencyMinimum 80% at full load
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Output Overvoltage ProtectionTranszorbs installed on each output
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Output ProtectionRectangular current limiting with hiccup mode short circuit protection. Thermal
Required Products
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MF100
10 Card Serialboxx Mainframe
Serialboxx -
MF8212
12 Card Main Frame
8200 Series -
MF8210
10 Card Main Frame
8200 Series