TECHNICAL DATASHEET
Rotary Cam Switch CS20A
Rotary Cam Switch with central fixing 22.5mm for panel mounting
n Range of rotary cam switches with choice of 4 operators
n Key operators permit key removal in all latched positions
n Finger proof screw terminals to IP20 protection
n UL / CSA approved
n Designed to IEC 60947-3
n Single hole, front panel mouting
n Switch body supplied with legend plate for use with square
escutcheon frame actuator
Options & Ordering Codes Specification
Handle Operators Key Operators Rated thermal current Ith A 20
RB2 Round Bezel RBK2 Round Bezel Rated operational voltage Ue V 690
IEC/VDE/BS
Utilisation category AC21A, AC21B A 20
Rated operational current Ie
Utilisation category AC23B @ 400V A 16
Utilisation category AC15 220/240V 6A
380/440V 4A
Cable cross section mm2 0.75 - 2.5
Contact material Silver alloy
Mounting hole diameter 22.5mm
Maximum backup fuse (gl) 20A
SP2 Square Escutcheon SPK2 Square Escutcheon Protection class from rear IP20
Accessories
Spare Key B4-R455
Tightening wrench J7049
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TECHNICAL DATASHEET
Rotary Cam Switch CS20A
Rotary Cam Switch with central fixing 22.5mm for panel mounting
Options & Ordering Codes continued
Off-On Switch Description Cells Part Number Connection Diagram
1 Pole 1 CS20A-A1
For 1-4 poles For 6-8 poles
2 Pole 1 CS20A-A2
3 Pole 2 CS20A-A3
4 Pole 2 CS20A-A4
6 Pole 3 CS20A-A6
8 Pole 3 CS20A-A8
Changeover Description Cells Part Number Connection Diagram
switches, with off
1 Pole 1 CS20A-U1
For 1-4 poles For 6-8 poles
2 Pole 2 CS20A-U2
3 Pole 3 CS20A-U3
4 Pole 4 CS20A-U4
6 Pole 6 CS20A-U6
8 Pole 8 CS20A-U8
Changeover Description Cells Part Number Connection Diagram
switches, without off
1 Pole 1 CS20A-W1
For 1-4 poles For 6-8 poles
2 Pole 2 CS20A-W2
3 Pole 3 CS20A-W3
4 Pole 4 CS20A-W4
6 Pole 6 CS20A-W6
8 Pole 8 CS20A-W8
3 position step Description Cells Part Number Connection Diagram
switches, without off
1 Pole 2 CS20A-ST31
2 Pole 3 CS20A-ST32
3 Pole 5 CS20A-ST33
4 position step Description Cells Part Number Connection Diagram
switches, without off
1 Pole 2 CS20A-ST41
2 Pole 4 CS20A-ST42
3 Pole 6 CS20A-ST43
5 position step Description Cells Part Number Connection Diagram
switches, without off
1 Pole 3 CS20A-ST51
2 Pole 5 CS20A-ST52
3 Pole 8 CS20A-ST53
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TECHNICAL DATASHEET
Rotary Cam Switch CS20A
Rotary Cam Switch with central fixing 22.5mm for panel mounting
Options & Ordering Codes continued
6 position step Description Cells Part Number Connection Diagram
switches, without off
1 Pole 3 CS20A-ST61
2 Pole 6 CS20A-ST62
3 Pole 9 CS20A-ST63
Changeover switch, Description Cells Part Number Connection Diagram
with spring return to off
1 Pole 1 CS20A-UR1
2 Pole 2 CS20A-UR2
3 Pole 3 CS20A-UR3
3 phase motor Description Cells Part Number Connection Diagram
reversing switch
5.5kW @ 3~440V 3 CS20A-WU3
3 current Description Cells Part Number Connection Diagram
transformers
1 Pole 3 CS20A-M31
Star Delta switches Description Cells Part Number Connection Diagram
1 Rotary Direction
4 CS20A-SD
5.5kW @ 3~440V
Dimensions
Central fixing 22.5mm CS20A Mounting hole
Additional Cam Switch dimensions L with .. cells
Type 1 2 3 4 5 6 7 8
CS20A 36.5 46 55.5 65 74.5 84 93.5 103
Ref: CS20A Errors and omissions excepted. Subject to change without notice. www.imopc.com
