Kraus & Naimer KG41 T203/40 KL11V Emergency Stop Main Switch, 3-Pole, 40 A, in Enclosure (KL11V)

Kraus & Naimer KG41 T203/40 KL11V Emergency Stop Main Switch, 3-Pole, 40 A, in Enclosure (KL11V)

Kraus & Naimer KG41 T203/40 KL11V is a 40 A (Ith), 3-pole emergency stop main switch (red handle, yellow front plate); supplied as a maintenance and safety switch in a KL series plastic enclosure (KL11V), IP66/67, enclosure size 190 x 100 x 93 mm. Ratings: rated insulation voltage Ui 690 V, impulse withstand voltage Uimp 6 kV, AC-21A 40 A, three-phase motor rating at 380–440 V: AC-3 11 kW, AC-23A 15 kW, breaking capacity 300 / 300 / 150 A (220–240 / 380–440 / 660–690 V), maximum fuse 50 A gG, short-time withstand current 500 A (1 s). Connection: flexible conductors 2.5–10 mm², solid or stranded conductors 1.5–16 mm², terminal tightening torque 1.8 Nm. The enclosure has IP66/67 protection and is flame resistant to UL94 V-0; a ground terminal and a safety interlocked cover are standard equipment. The cover interlock only allows the cover to be opened at the 9 o'clock position. It includes 1 NO + 1 NC auxiliary contacts; the auxiliary contacts close after the main contacts close and open before the main contacts open. The KG and C316 series switches exceed the requirements of IEC 60947-3 / EN 60947-3 (VDE 0660 part 107), IEC/EN 60204 and VDE 0113 and are used as switch disconnectors, main switches and maintenance switches.

Number of Poles3P
Rated Current40 A
Mounting TypeKL11V ile kutulu (bakım and emniyet şalteri)
IP RatingIP66/67
SeriesKG41
Size TypeS0
Function CodeT203
Switch FunctionAcil Durdurma Fonksiyonlu Ana Şalter (0-1)
Switch Positions0-1
Number of Positions2
Handle ColorRed (sarı ön plaka)
Conventional Free Air Thermal Current (Ith)40 A
Ambient temperature for rated current50 °C (24 hours, tepe 55 °C)
Conventional Enclosed Thermal Current (Ithe)40 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-20A (Ie)690 V: 40 A
Rated Operational Current AC-21A (Ie)20–690 V: 40 A
Rated Operational Current AC-22A (Ie)220–500 V: 40 A; 660–690 V: 40 A
Rated Operational Power AC-3 (Pe)3-phase: 220–240 V 7.5 kW; 380–440 V 11 kW; 500 V 15 kW; 660–690 V 11 kW
Rated Operational Power AC-23A (Pe)3-phase: 220–240 V 7.5 kW; 380–440 V 15 kW; 500 V 18.5 kW; 660–690 V 15 kW
Maximum Fuse CurrentgG 50 A
Rated Short-Time Withstand Current (Icw)500 A (1 s)
Breaking Capacity220–240 V: 300 A; 380–440 V: 300 A; 660–690 V: 150 A
Power Loss per Pole1 W
Solid Conductor Cable Cross-Section1.5–16 mm2
Stranded Conductor Cable Cross-Section16 mm2
Flexible Conductor Cross-Section2.5–10 mm2
Conductor Cross-Section with Ferrule1.5–10 mm2
Cable section (AWG/MCM)AWG 6
Conductor MaterialCopper only (individual strands may be tinned or silver-plated; conductor ends must not be soldered)
Tightening Torque1.8 Nm (16 lb-in)
Recommended Screw DriverPozidriv/Phillips PH2; slotted 1.2 x 6.5 mm (DIN 5264)
Contact TypeRigid bridging link
Contact MaterialSilver
Connection TypeScrew terminal
UL/CSA Rated Insulation Voltage (Ui)600 V AC
UL/CSA Thermal Current42 A (UL); 40 A (CSA)

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