Specifications

SERIES 20M
MODULAR PLUG-IN INSTRUMENT AND CONTROL SWITCHES
Features
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
• Plug-in Quick Disconnect Capabilities
• Front of Panel Serviceable Without Service Loops
• Integral Indicating and Annunciator Lights – With or Without
Dropping Resistors
• Integrated Markings for Better Control – Engravings for Title, Lamps
and Identification Tagging
• 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 1 to 12 /1 to 24
Positions 2 to 12
Contacts Double Break Silver Plated Copper
Action 45˚, 30˚, 60˚ and 90˚ Positive Detent or Spring Return
Mounting Modular
Panel Thickness 2.5" Max. Standard
Construction Contacts Enclosed in Rigid Thermoset Plastic Housing
Special Drives Key Operated
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.
ORDERING INFORMATION
Specify Series 20 switch, number, color and voltage
of lamps and engraving.
Plug-in Connectors
Burndy Bantamate T
rim Trio round connectors are standard. Generally only one connector is
needed and the “N” polarization is used. If two connectors are needed, the 2nd connector uses
the “W” polarization.
Electroswitch • 180 King Avenue • Weymouth, MA 02188 • TEL: [phone] • FAX: [phone] • www.electroswitch.com
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ELECTROSWITCH