Kraus & Naimer CA20 A236 9-Step Cam Switch without OFF, 1-Pole, 25 A, 48 x 48 mm Front Plate

Kraus & Naimer CA20 A236 9-Step Cam Switch without OFF, 1-Pole, 25 A, 48 x 48 mm Front Plate

Kraus & Naimer CA20 A236 is a 1-pole, 25 A step cam switch with 9 steps (1-9) and no OFF position. Technical values: CA20 type, size class S0, 48 x 48 mm front plate; thermal current Ith 25 A (55 °C), enclosed thermal current Ithe 25 A; rated insulation voltage Ui 690 V, rated impulse withstand voltage Uimp 6 kV; AC-21A 25 A, AC-22A 25 A, AC-15 380–440 V 5 A; maximum gG 35 A fuse, Icw 280 A (1 s); conductor cross-section: solid 0.75–4 mm², flexible 1.5–4 mm²; tightening torque 1 Nm; 1 pole, 5 levels, 9 steps, positions 1-2-3-4-5-6-7-8-9, switching angle 30°. Values are given in accordance with IEC 60947-3 and EN 60947-3. It is used in control and adjustment circuits that need selection between several circuits or steps; none of the 9 positions is an OFF position.

Size TypeS0
Number of Poles1P
Cam Switch Position Count9 Positions
SeriesCA20
Function CodeA236
Switch FunctionStepped Without Off (1-2-3-4-5-6-7-8-9)
Switch Positions1-2-3-4-5-6-7-8-9
Number of Positions9
Switching Angle30° °
Number of Levels5
Front Plate CodeF010
Front Plate Size (A x B)48 x 48 mm
Rated Current25 A
Conventional Free Air Thermal Current (Ith)25 A
Ambient temperature for rated current55 °C (24 hours, tepe 60 °C)
Conventional Enclosed Thermal Current (Ithe)25 A
Rated Insulation Voltage (Ui)690 V (AC 50/60 Hz)
Rated Impulse Withstand Voltage (Uimp)6 kV
Overvoltage categoryIII
Pollution Degree3
Rated Operational Current AC-15 (Ie)220–240 V: 8 A; 380–440 V: 5 A
Rated Operational Current AC-20A (Ie)690 V: 25 A
Rated Operational Current AC-21A (Ie)20–690 V: 25 A
Rated Operational Current AC-22A (Ie)220–500 V: 25 A; 660–690 V: 25 A
Rated Operational Power AC-2 (Pe)3-phase: 220–240 V 5.5 kW; 380–440 V 11 kW; 500 V 15 kW; 660–690 V 13 kW
Rated Operational Power AC-3 (Pe)3-phase: 220–240 V 4 kW; 380–440 V 7.5 kW; 500 V 7.5 kW; 660–690 V 7.5 kW. 1-phase: 110–120 V 1.5 kW; 220–240 V 3 kW; 380–440 V 3.7 kW
Rated Operational Power AC-4 (Pe)3-phase: 220–240 V 1.5 kW; 380–440 V 3 kW; 500 V 3 kW; 660–690 V 3 kW. 1-phase: 110–120 V 0.45 kW; 220–240 V 1.1 kW; 380–440 V 2.2 kW
Rated Operational Power AC-23A (Pe)3-phase: 220–240 V 5.5 kW; 380–440 V 11 kW; 500 V 11 kW; 660–690 V 11 kW. 1-phase: 110–120 V 1.5 kW; 220–240 V 3 kW; 380–440 V 5.5 kW
Maximum Fuse CurrentgG 35 A
Rated Short-Time Withstand Current (Icw)280 A (1 s)
Breaking Capacity220–240 V: 200 A; 380–440 V: 200 A; 660–690 V: 125 A
Power Loss per Pole0.9 W
Solid Conductor Cable Cross-Section0.75–4 mm2
Stranded Conductor Cable Cross-Section2x4 mm2
Flexible Conductor Cross-Section1.5–4 mm2
Conductor Cross-Section with Ferrule1–2.5 mm2
Cable section (AWG/MCM)AWG 12 (flexible); AWG 10 (solid or stranded)
Conductor MaterialCopper only (individual strands may be tinned or silver-plated; conductor ends must not be soldered)
Tightening Torque1 Nm (9 lb-in)
Recommended Screw DriverPozidriv/Phillips PH1; slotted 0.8 x 5.5 mm (DIN 5264)

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