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EKRS26 Rotary Switch

EKRS26 Rotary Switch
Technical Data

Introduction

The EKRS sereies rotary switch mainly applies to 440V and below,AC 50Hz or 240V and below DC circuits. For breaking and closing, change-over of circuits under unfrequently manual operation. And the typical application are: control switch of 3 phase motors, control switch of switch gear, control switch of instruments,and change-over switch of machinery and welding machine.

● The series comply with the IEC 60947-3,IEC 60947-5-1.
● The EKRS26 series have 8 current ratings: 10A,20A,25A,32A,63A,125A ,160A and 315A.
● The EKRS26 series rotary switch were designed for multiple functions, wide variety of applications.
● The EKRS26-10,EKRS26-20,EKRS26-25,and EKRS26-32F have finger protection terminals.
● Both of them are applicable in circuits when an physical control is required.
● We can equip protective box for 20A,25A,32A and 63A.

Working conditions

● Ambient temperature do not exceed 40℃, and the average temperature, measured over a period of 24 hours, do not exceed 35℃
● Ambient temperature should not be below -25℃
● Should Not be installed over 2000m above sea level
● The humidity should not exceed 50% when the ambient temperature is 40℃ and higher humidity is allowed for lower temperature

Installation conditions

● A clean environments is required
● Please follow our manual

Designation

Use as control switches

Use as motor switches

Use as control switch for a main circuit

Classification

1.Classified by utilization

● Change-over switch
● Motor switch
● Control switch

2.Classified by operation

● Limied movement
● Spring return
● Limited movement with spring return

3.Classified by contact system

● Switches with limited movement could have 12 layers in maximum (for 32 A and below ).And for 63 A and above could have 8 layers in maximum
● Switches with spring return could have 3 layers in maximum
● Motor switches could have 6 layers in maximum

4.Diagram for the operation and position of handle

Operation
angle
Character
code
Position of handle
30° Rotation 45° Rotation 60° Rotation 90° Rotation
Spring
retuen
A 0° ← 30° 0° ← 45° 0° ← 60° 0° ← 90°
B 30° → 0° ← 30° 45° → 0° ← 45° 60° → 0° ← 60° 90° → 0° ← 90°
X 60° → 30° → 0° ← 30° ← 60° 90° → 45° → 0° ← 45° ← 90°    
Y 90° → 60° → 30° → 0° ← 30° ← 60° ← 90°      
Limited
movement
C 0° 30° 0° 45° 0° 60°  
D 30° 0° 30° 45° 0° 45° 60° 0° 60°  
E 30° 0° 30° 60° 45° 0° 45° 90° 60° 0° 60° 120°  
F 60° 30° 0° 30° 60° 90° 45° 0° 45° 90° 60° 0° 60° 120°  
G 60° 30° 0° 30° 60° 90° 90° 45° 0° 45° 90° 135° 120° 60° 0° 60° 120° 180°  
H 90° 60° 30° 0° 30° 60° 90° 135° 90° 45° 0° 45° 90° 135°    
I 90° 60° 30° 0° 30° 60° 90° 120° 135° 90° 45° 0° 45° 90° 135° 180°    
J 120° 90° 60° 30° 0° 30° 60° 90° 120°      
K 20° 90° 60° 30° 0° 30° 60° 90° 120° 150°      
L 150° 120° 90° 60° 30° 0° 30° 60° 90° 120° 150°      
M 150° 120° 90° 60° 30° 0° 30° 60° 90° 120° 150° 180°      
N   45° 45° 30° 30°  
P       90° 0° 90°
T       0° 90°
V       90° 0°
Limited
movement
with spring
return
 
R 30° 0° ← 30°     270° 0° 90° 180°
Q 30° → 0° 60° 135° 90° 45° 0° ← 45°    
S   135° 90° 45° 0° ← 45°    
W 30° → 90° 0° ← 30° 90° → 45° 0° 45° ← 90°    

Escutchenon plate and Handle
Escutchenon plate Type pf Handle

Dimensions and Installation
Square Escutcheon Plate and Rectangular Escutcheon Plate

Description Escutcheon plate Dimensions(mm) Installation(mm)
A B C L E F D1 D2
EKRS26-10 M0 square 30 30 28 22+8n 20   φ8 φ3.2
EKRS26-20 M1 square 48 48 43 22+9.6n 36 36 φ8.5 φ4.5
M1 rectangular 48 60 43 22+9.6n 36 36 φ8.5 φ4.5
M2 square     64 64 43 25+9.6n 48 48 φ10 φ10 φ4.5 φ4.5
M2 rectangular 64 80 34 25+9.6n 48 48    
EKRS26-25 M1 square 48 48 45.2 23+12.8n 36 36 φ8.5 φ4.5
M1 rectangular 48 60 45.2 23+12.8n 36 36 φ8.5 φ4.5
M2 square     64 64 45.2 26.5+12.8n 48 48 φ10 φ10 φ4.5 φ4.5
M2 rectangular 64 88 45.2 26.5+12.8n 48 48    
EKRS26-32 M2 square 64 64 58 29.2+12.8n 48 48 φ10 φ4.5
M2 rectangular 64 80 58 29.2+12.8n 48 48 φ10 φ4.5
M3 square 88 88 58 29.2+12.8n 68 68 φ13 φ6
EKRS26-63 M2 square 64 64 66 29.2+21.5n 48 48 φ10 φ4.5
M2 rectangular  64 80 66 29.2+21.5n 48 48 φ10 φ13 φ4.5
M3 square 88 88 66 29.2+21.5n 68 68   φ6
EKRS26-125 M3 square 88 88 84 35+26.5n 68 68 φ13 φ6
EKRS26-160 M3 square 88 88 88 35+32.5n 68 68 φ13 φ6
EKRS26-315 M4 square 130 130 126 39.5+38.5n 104 104 φ16 φ7

Re: n for number of layers

Technical Parameters

Description     EKRS
26-10
EKRS
26-20
EKRS
26-25
EKRS
26-32
EKRS
2626-63
EKRS
26-125
EKRS
26-160
EKRS
26-315
Rated insulation voltage  Ui V 660 660 660 660 660 660 660 660
Rated thermal current    Ith  A 10 20 25 32 63 125 160 315
Rated working voltage  Ue V 240 440 240 440 240 440 240 440 240 440 240 440 240 440 240 440
Rated working current Ie                    
AC-21A  AC-22A    A 10 10 20 20 25 25 32 32 63 63 100 100 150 150 315 315
AC-23A   A 7.5 7.5 15 15 22 22 30 30 57 57 90 90 135 135 265 265
AC-2   A 7.5 7.5 15 15 22 22 30 30 57 57 90 90 135 135 265 265
AC-3   A 5.5 5.5 11 11 15 15 22 22 36 36 75 75 95 95 110 110
AC-4   A 1.75 1.75 3.5 3.5 6.5 6.5 11 11 15 15 30 30 55 55 95 95
AC-15   A 2.5 1.5 5 4 8 5 14 6        
AC-13    A   0.4 0.5        
Power P                  
AC-23A    KW 1.8 3 3.7/
2.5 
7.5/
3.7
5.5
/3  
11/
5.5
7.5
/4  
1.5/
7.5
15
/10 
30/
18.5
30/
15
 45/
22
37/
22 
75/
37
75/
37 
132
/55
AC-2 KW   KW 2.5 3.7 4 7.5 5.5 11 7.5 15 18.5 30 30 45 37 55 55 95
AC-3 KW   KW 1.5 2.2

3/
2.2

5.5/3 4/3  

7.5
/3.7

5.5
/4  

11/
5.5

11
/6 

18.5
/11
15/
7.5  
30
/13
22
/11 
37/
18.5
27
/22 
55
/30
AC-4 KW   KW 0.37 0.55

0.55/
0.75 

1.5/
1.5

1.5
/1.1 

 3/
2.2

2.7
/1.5  

5.5
/3

5.5
/2.4  

7.5
/4
6/3 12/
5.5
10
/4
15/
7.5
15/
7.5  
25
/11

Re1: Neutral
Re2: The power under :
AC-23A、AC-3、AC-4 are in three phase three pole, and the denominator represents the power under single phase two poles

Mechanical life

Mechanical life without load : 0.1×106 times , operation frequency is 120 times/h.
Mechanical life with load : 0.03×106 times, operation frequency is 120 times/h.

Customized Programme Form(CPF)

Due to the flexibility selection of EKRS series contact ratings and number of contacts etc, their combination number is almost limitless, to ensure that a right switch is chosen for the application, so -we prepare the following Customized programme Form for our customers order special switches.Only EKRS26 series.

General Panel Diagram

Electrical Rotary Switches,Rotary Switch,3 positions Rotary Switches