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E Series
Low Torque Miniature Snap-Action Switches

 

Features
  •  Long life coil spring mechanism
  •  Low torque rotary actuation
  •  Clockwise or counter clockwise actuation
  •  6 terminal types
  •  Double rivet sturdy case construction
  •  3 contact arrangements
E51 Series
E51 Low Torque Series

  download PDF

E51 Cutaway

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  Electrical Ratings
Switch
Series
EN61058
Rating
UL1054
Rating
Electrical Life at Rated Load
According to VDE
(Min. Operations)
According to UL
(Min. Operations)
E51
N/A
6A, 250VAC
N/A
6,000
E53
N/A
0.1A, 125VAC
N/A
6,000
  Specifications
Electrical
Temperature Rating: -40° to +85°C
Flammability Rating: UL94HB
Materials
Case: General Purpose Phenolic
Terminal: Silver-Plated Brass
Moving Blade: Brass
Contacts: Silver Alloy (E51), Gold Crosspoint (E53)
Spring: Stainless Steel
Operating Characteristics
Standard Force: 4.0 inch grams (max.)
Over-Travel: 15° min.
Movement Differential: 3° min.
Note: Special models and tooling capability available for custom wire form actuators.
Note: Additional operating forces available upon request. Consult factory.

 
  Approvals
 
  Dimensions

E51 Dimensions

Inches (mm)
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  Terminals

Standard Parallel Terminal

Inches (mm)
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Vertical Straight Terminal

Inches (mm)
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Vertical Twist Terminal

Inches (mm)
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  Mounting

Recommended mounting screw size: #4-40 Round head.

Recommended torque on screw: 4 inch lbs. max.
 

  Actuators

Wireform actuators are supplied unassembled for each switch. Wireforms may be readily assembled to switch rotor as shown.

Wireform Actuator

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Actuator Angles

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  Actuator Specifications
Switch
Type
Actuator
Type
Direction of Actuator
Terminals
inches (mm)
00B/00R Switch Type
–00B
Clockwise
Standard Parallel 0.205 (5.21)
–00R
Clockwise
Standard Parallel 0.187 (4.75)
00E/00T Switch Type
–00E
Counter Clockwise
Standard Parallel 0.205 (5.21)
–00T
Counter Clockwise
Standard Parallel 0.187 (4.75)
50B/50R Switch Type
–50B
Clockwise
Vertical Twist 0.205 (5.21)
–50R
Clockwise
Vertical Twist 0.187 (4.75)
50E/50T Switch Type
–50E
Counter Clockwise
Vertical Twist 0.205 (5.21)
–50T
Counter Clockwise
Vertical Twist 0.187 (4.75)
60B/60R Switch Type
–60B
Clockwise
Vertical Straight 0.205 (5.21)
–60R
Clockwise
Vertical Straight 0.187 (4.75)
60E/60T Switch Type
–60E
Counter Clockwise
Vertical Straight 0.205 (5.21)
–60T
Counter Clockwise
Vertical Straight 0.187 (4.75)
  Circuitry

This series is available in single pole double throw (SPDT) and single pole single throw (SPST) either normally open (NO) or normally closed (NC).

In general, normally open may be specified by adding 01 to suffix numbers, and normally closed by adding 02.

For example:
E51-00B is double throw,
E51-01B is normally open and
E51-02B is normally closed.
 

 

  PART NUMBERS COMMONLY STOCKED IN DISTRIBUTION
Click on the Part Number to open 'Check Distributor Stock' window.
E5100B
E5100E
E5100R
E5100T
E5150B
E5150E
E5150R
E5150T
E5160B
E5160E
E5300R
These part numbers offer advantages in lower minimum order quantity and typically shorter lead times.
  Ordering Information

Select the current rating you need. Combine the corresponding Series/Prefix number (E51- or E53-)
with the appropriate suffix number for the switch type, circuitry and terminals you require
(see Actuator Specifications table above).

Example:

E51-00B = 6A, SPDT with clockwise actuation and standard parallel terminals (.205")

E53-52T
= 0.1A, SPST NC with counter clockwise actuation and vertical twist terminals (.187")

Specifications subject to change without notice.