Specifications

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
• Making Ability for Circuit Breaker Coils: 45A–125VDC
Mechanical Specifications
Sections 1 to 10
Poles 1 to 20
Positions 8; Adjustable Stops for 2–8 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 •
Note 1: Nominal torques, weights, and depth behind panel are listed below.
Note 2: Assemblages are shown with handle in 0˚ position (12 o’clock).
Model No. 31
Series
Assemblage
2 = Assemblage 2
3 = Assemblage 3
Mounting Style/Handle
B = Four Hole/Oval Shank
C = Four Hole/Round Knurled
D = Four Hole/Pistol Grip
ORDERING INFORMATION -
(For generic switches fill out matrix below. For application specific switches see page 15.)
01 =
02 =
03 =
04 =
05 =
06 =
07 =
08 =
09 =
10 =
1
2
3
4
5
6
7
8
9
10
5
6
7
8
9
10
11
13
14
15
6
7
8
9
10
11
14
15
16
17
Matrix
Code
No. of
Sections
W
eight
(oz)
Torque
(lbs/in)
Depth Behind Panel
4 Hole
Assemblage 3
Assemblage 2
Four Hole Mount Assemblages
Shorting
Blank = No
S = Yes
1.25
1.63
2.00
2.38
2.75
3.13
3.75
4.13
4.50
4.88
Electroswitch • 180 King Avenue • Weymouth, MA 02188 • TEL: [phone] • FAX: [phone] • www.electroswitch.com
13
E