Power Supply

Power Supply

The Model 1945 is an adjustable 12 to 15 Volt DC regulated Power Supply, and is used to provide loop power for INCON Panel Meters ordered with the 4 to 20 milliamp analog output option.

Product Information
Order & Spec Info
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  • Features

    • VDE transformer construction – Full rated to 50 °C
    • + 0.05% regulation - Foldback/current limit
    • T.C. burned-in to MIL - 883 Lev. B
    • UL recognized/CSA certified
    • Chassis notched for AC input
    • 100/120/220/230-240 VAC power
    • Industry standard frame size

    Applications

    • MI/RFI
    • The 1945 power supply has inherently low conducted and radiated noise levels for most system applications that meet the requirements of FCC Docket 20780 for Class A equipment and VDE 0871 for Class A equipment without additional noise filtering.
    • COOLING
    • Convection cooling is adequate where nonrestricted airflow is available. When operating in a confined area, moving air or conduction cooling is recommended.
    • AC CONNECTIONS & FUSING
    • The five-wire input to the 1945 provides four voltage ranges: 100/ 120/220/230-240. Extended low line tolerance provides additional drop out margin in areas where line voltages are marginal. Inputs must be fused.
    • Note: This product is a Class 1 power supply and requires the chassis to be connected to earth ground at end application.
    • *Note: Use 700 °C iron for soldering input connections.
    • **Note: Tolerance for 230 VAC operations is +15% to -10%
  • Ordering Information

    MODELDESCRIPTION
    1945Power Supply

    Specifications

    General
    AC Input:100/120/220/230-240 VAC, ± 10%, 47-63 Hz
    (Derate output current 10% for 50 Hz operation).
    Fuse at: 0.5 / 0.25 amps for 100 -120 / 220 - 240 VAC.
    DC Output:12 - 15 V (± 5%) Adjustable
    Line Regulation:± 0.05% for a 10% line change
    Load Regulation:± 0.05% for a 50% load change
    Output Ripple:5.0 mV PK-PK maximum
    Transient Response:≤ 50µs for a 50 to 100 % load change
    Short Cicuit and Overload Protection:Automatic current limit / foldback
    Over Voltage Protection:Not Available
    Remote Sensing:Not Available
    Stability:± 0.3% for 24 hour period after 1 hour warm-up
    Temperature Rating:0 °C to 50 °C full-rated derated linearly to 40% at 70 °C
    Temperature Coefficient:± 0.03%/°C maximum
    Efficiency:55%
    Vibration:Per ML-STD-8100 method 514.3 category 1 procedure I
    Shock:Per ML-STD-8100 method 516.3 procedure III
    Weight:2 lbs (1 kg) [Shipping: 3 lbs (1.5 kg)]
    • Safety Specifications: The 1945 power supply is designed to meet or exceed requirements of the following specifications: IEC 380, IEC 435, VDE 0730 Part 2, VDE 0804, ECMA-57, CEE 10 Part 2P, UL 1012, CSA 22.2 No. 143, CSA 22.2 No. 154. Specifically, field terminal to terminal spacing is 5.25 mm with 9.0 mm creepage to other metal. Leakage current is less than 5.0 mA and dielectric withstanding voltages are 3750 VAC input to chassis. 3750 VAC input to output and 300 VDC output to chassis.
  • Technical Specs