Kraus & Naimer CA10B A004 Voltmeter Selector Switch, 20 A, 64 x 64 mm Front Plate
- Brand: Kraus & Naimer
- SKU: CA10B A004
- MPN: CA10B A004
- Model: 20 A
- Price: 1457.00 TRY + VAT · incl. VAT 1748.40 TRY
- Availability: Made to order
- Selector Step Switches
- Kraus & Naimer Selector Step Switches
- Selection guide: What Is a Selector Step Switch? Uses and Selection Criteria
Kraus & Naimer CA10B A004 is a 4-position voltmeter selector cam switch rated 20 A. The CA10B type switch has a 64 x 64 mm front plate (S0 switch with S1 size latching mechanism); Ith 20 A, Ui 690 V; rated short-time withstand current Icw is 140 A (1 s); terminals accept conductors up to 2.5 mm². Function: 4 positions (0 + 3 phase-to-phase), 45° switching angle, 2 stages. It is used to select and measure the phase-to-phase voltages of a three-phase system with a single voltmeter.
| Series | CA10B |
|---|---|
| Size Type | S1 |
| Function Code | A004 |
| Switch Function | Voltmetre Komütatörü (0, L1-L2, L2-L3, L3-L1) |
| Switch Positions | 0, L1-L2, L2-L3, L3-L1 |
| Number of Positions | 4 |
| Switching Angle | 45° ° |
| Number of Levels | 2 |
| Front Plate Code | F775 |
| Front Plate Size (A x B) | 64 x 64 mm |
| Rated Current | 20 A |
| Conventional Free Air Thermal Current (Ith) | 20 A |
| Ambient temperature for rated current | 55 °C (24 hours, tepe 60 °C) |
| Conventional Enclosed Thermal Current (Ithe) | 20 A |
| Rated Insulation Voltage (Ui) | 690 V (AC 50/60 Hz) |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV (circuit breaker); 4 kV (switch-disconnector) |
| Overvoltage category | III |
| Pollution Degree | 3 |
| Rated Operational Current AC-15 (Ie) | 220–240 V: 6 A; 380–440 V: 4 A |
| Rated Operational Current AC-20A (Ie) | 690 V: 20 A |
| Rated Operational Current AC-21A (Ie) | 20–690 V: 20 A |
| Rated Operational Current AC-22A (Ie) | 220–500 V: 20 A; 660–690 V: 20 A |
| Rated Operational Power AC-2 (Pe) | 3-phase: 220–240 V 4 kW; 380–440 V 7.5 kW; 500 V 10 kW; 660–690 V 10 kW |
| Rated Operational Power AC-3 (Pe) | 3-phase: 220–240 V 3 kW; 380–440 V 5.5 kW; 500 V 5.5 kW; 660–690 V 5.5 kW. 1-phase: 110–120 V 0.6 kW; 220–240 V 2.2 kW; 380–440 V 3 kW |
| Rated Operational Power AC-4 (Pe) | 3-phase: 220–240 V 0.55 kW; 380–440 V 1.5 kW; 500 V 1.5 kW; 660–690 V 1.5 kW. 1-phase: 110–120 V 0.3 kW; 220–240 V 0.75 kW; 380–440 V 1.5 kW |
| Rated Operational Power AC-23A (Pe) | 3-phase: 220–240 V 3.7 kW; 380–440 V 7.5 kW; 500 V 7.5 kW; 660–690 V 7.5 kW. 1-phase: 110–120 V 0.75 kW; 220–240 V 2.5 kW; 380–440 V 3.7 kW |
| Maximum Fuse Current | gG 25 A |
| Rated Short-Time Withstand Current (Icw) | 140 A (1 s) |
| Breaking Capacity | 220–240 V: 150 A; 380–440 V: 150 A; 660–690 V: 80 A |
| Power Loss per Pole | 0.9 W |
| Solid Conductor Cable Cross-Section | 0.5–2.5 mm2 |
| Stranded Conductor Cable Cross-Section | 2x2.5 mm2 |
| Flexible Conductor Cross-Section | 0.75–2.5 mm2 |
| Conductor Cross-Section with Ferrule | 0.5–2.5 mm2 |
| Cable section (AWG/MCM) | AWG 14 (flexible); AWG 12 (solid or stranded) |
| Conductor Material | Copper only (individual strands may be tinned or silver-plated; conductor ends must not be soldered) |
| Tightening Torque | 0.6 Nm (5 lb-in) |
| Recommended Screw Driver | Pozidriv/Phillips PH1; slotted 0.8 x 4 mm (DIN 5264) |
| Contact Type | Rigid bridging link |
| Contact Material | Silver |
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