Table of Contents
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Type AS-1A and AS-10 Switch Operators
Table of Contents
Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Qualified Persons � � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Read this Instruction Sheet � � � � � � � � � � � � � � � � � � � 2
Retain this Instruction Sheet� � � � � � � � � � � � � � � � � � � 2
Proper Application � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Warranty � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 2
Safety Information � � � � � � � � � � � � � � � � � � � � � � � � 3
Understanding Safety-Alert Messages � � � � � � � � � � � 3
Following Safety Instructions � � � � � � � � � � � � � � � � � � 3
Replacement Instructions and Labels � � � � � � � � � � � 3
June 26, 2023
© S&C Electric Company 1981-2023, all rights reserved
Constant-Burden Battery Charger for 12-Vdc
switch operators
Installation
Safety Precautions � � � � � � � � � � � � � � � � � � � � � � � 4
Overview � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 5
Installation � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 6
Test Instruments and Tools Required � � � � � � � � � � � 6
For Use with S&C Potential Device � � � � � � � � � � � � � 6
For Use with Other 120-Vac Power Sources � � � � � � 7
Product Details � � � � � � � � � � � � � � � � � � � � � � � � � � 8
Instruction Sheet 769-600
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Related Manuals for S&C MA-1050
Summary of Contents for S&C MA-1050
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Page 1: Table Of Contents
Constant-Burden Battery Charger for 12-Vdc Type AS-1A and AS-10 Switch Operators switch operators Installation Table of Contents Introduction � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 2 Safety Precautions �... -
Page 2: Introduction
Introduction Qualified WARNING Persons Only qualified persons who are knowledgeable in the installation, operation, and maintenance of overhead and underground electric distribution equipment, along with all associated hazards, may install, operate, and maintain the equipment covered by this publication� A qualified person is someone who is trained and competent in: •... -
Page 3: Safety Information
Safety Information Understanding Several types of safety-alert messages may appear throughout this instruction sheet and on labels and tags attached to the Constant-Burden Battery Charger. Become familiar with these types of Safety-Alert messages and the importance of these various signal words: Messages DANGER “DANGER”... -
Page 4: Safety Precautions
Safety Precautions DANGER Switch operators operate at high voltage� Failure to observe the precautions below will result in serious personal injury or death� Some of these precautions may differ from company operating procedures and rules� Where a discrepancy exists, users should follow their company’s operating procedures and rules� 1�... -
Page 5: Overview
Overview The S&C Constant-Burden Battery Charger, catalog number The battery charger has a regulated output, with an MA-1050, is expressly designed for 12-Vdc battery-charging adjustable output voltage setting (factory-set at 13.3 Vdc). duty in applications where alternating current input is The circuitry design prevents discharge of the battery derived from an S&C 30-Volt-Ampere Potential Device. -
Page 6: Installation
Installation Test Instruments and Tools Required grounding switch should be closed when incre- mental adjustments are made.) When high-voltage conductors are to be connected using aluminum-alloy body connectors the following procedures STEP 8� Set and lock the Burden Adjust control of the should be employed: battery charger to attain a reading of 200 milli- amperes on the “dc charging current”... -
Page 7: For Use With Other 120-Vac Power Sources
Installation STEP 15� Open the potential device grounding switch and, factory-set value of 13.3 Vdc , energize the ● at the same time, measure the battery charger’s charger and use the Output Adjust control to output voltage and observe the dc-charging attain the required voltmeter reading at the current shown on the charger’s milliammeter. -
Page 8: Product Details
Product Details Table 1� Product Details Type Description Value Voltage, Nominal 125 Vac Frequency 50 to 60 Hertz Voltage, Operating Range 8 to 140 Vac Input Current Regulation Input current varies less than 1% with output variation from open circuit to short circuit� Input current varies in direct proportion to input voltage Burden-Adjustment Range 4�0 Volt-amperes to 17�0 Volt-amperes...
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