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简单介绍：
Series 20 Modular Plug-In Instrument & Control Switches have all the outstanding features of the Series 20 and 20P Switches with the following additions:
• Modular Design – Lighted or Nonlighted
•
详情介绍：
Features the outstanding features of the Series 20 and 20P Switches with the following additions:
Series 20 Modular Plug-In Instrument & Control Switches have all
• Modular Design – Lighted or Nonlighted and Identification Tagging Dropping Resistors
• Plug-in Quick Disconnect Capabilities
• Front of Panel Serviceable Without Service Loops
• Integral Indicating and Annunciator Lights – With or Without
• Integrated Markings for Better Control – Engravings for Title, Lamps
• Choice of Handles
• Can be Mounted with Switch Handle and Nameplate in Place
• Maintenance and Circuit Testing Accomplished from Front of Panel
• Burndy Bantamate Military Style Connectors
• 3 Lamp Styles – Round Dome, Round-Flat, Dome LEDs
Electrical Specifications
Continuous Ratings
• 20A/240 Volts
Interrupt Ratings
• 20A/120VAC
• 20A/240VAC
• 20A/24VDC
• Momentary Current: 407 Amperes 1 Second
• Overload Current (50 operations): 91A/240VAC
• Dielectric Strength: 1500V rms
• Insulation Resistance: 100 Megohms
• Contact Resistance: 10 Milliohms
Mechanical Specifications
Sections/Poles
Positions
Contacts
Action
Mounting Panel Modular
Thickness
Construction Key Operated Contacts Enclosed in Rigid Thermoset Plastic Housing
Special Drives
Plug-in Connectorsneeded and the “N” polarization is used. If two connectors are needed, the 2nd connector uses the “W” polarization.
Burndy Bantamate Trim Trio round connectors are standard. Generally only one connector is
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Note: The Series 20M Class 1E utility products comply with the following Nuclear Standards:
ANSI/IEEE C37.90, ANSI/IEEE C37.90.01, ANSI/IEEE C37.98, ANSI/IEEE C37.105, ANSI/IEEE 323,
ANSI/IEEE 344, ANSI/ASME NQA -1.
ANSI/IEEE C37.90, ANSI/IEEE C37.90.01, ANSI/IEEE C37.98, ANSI/IEEE C37.105, ANSI/IEEE 323,
ANSI/IEEE 344, ANSI/ASME NQA -1.
