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SERIES 31
INSTRUMENT AND CONTROL SWITCHES
Features
Double-Sided, Double-Wiping, Knife-Type Rotary Contacts
Silver Contact Surfaces for Long, Reliable Life
Terminal Screws Easy Installation
Standard Four Hole Mount
Single Hole Mount Available - Consult Factory
Control Switch Special Features
Spring Return to Normal (Vertical) Position
Instrument Switch Special Features
Make-Before-Break (Shorting Contacts)
Common Input Tap Switch Arrangement - Sequentially Connected
to Several Lines Using the Same Switching Deck
Positive Positioning Detent Mechanism
Pre-Wired Jumpers
Electrical Specifications
Continuous Ratings
15A/600V
Interrupt Ratings
10A/120VAC
5A/240VAC
3A/600VAC
5A/30VDC
1A/125VDC
Overload Current (50 operations): 60A/125VAC Resistive
Voltage Breakdown: 2200V rms minimum
Insulation Resistance: 100 Megohms minimum
Contacts Resistance: .01ohms maximum
Mechanical Specifications
Sections
1 to 10
Poles
1 to 20
Positions
8; Adjustable Stops for 28 Position Rotation
Contacts
Break-Before-Make (Non-Shorting);
Make-Before-Break (Shorting)
Action
45° Positive Detent Indexing
Mounting
4 Hole
Panel Thickness
3/16" Max. Standard
Rotor Contacts
Silver Plated Phosphor-bronze, Double Grip
Stationary Contacts
Silver Plated Copper, w/Integral Screw Type Terminals
Construction
Contacts Enclosed in Molded-phenolic Disks
Approvals
UL File No. E18174
CSA