Kraus & Naimer KG315 T203/05 E Emergency Stop Main Switch, 3-Pole, 315 A, 88 x 88 mm Front Plate

Kraus & Naimer KG315 T203/05 E Emergency Stop Main Switch, 3-Pole, 315 A, 88 x 88 mm Front Plate

Kraus & Naimer KG315 T203/05 E is a 315 A (Ith), 3-pole emergency stop main switch (red handle, yellow front plate); four-hole panel mounting, 88 x 88 mm front plate, IP66. Ratings: rated insulation voltage Ui 1000 V, impulse withstand voltage Uimp 8 kV, AC-21A 315 A, three-phase motor rating at 380–440 V: AC-3 75 kW, AC-23A 110 kW, breaking capacity 1800 / 1650 / 400 A (220–240 / 380–440 / 660–690 V), maximum fuse 315 A gG, short-time withstand current 5800 A (1 s). Connection: flexible conductors 25–150 mm², solid or stranded conductors 16–185 mm², terminal tightening torque 16 Nm. A padlockable handle and a protective cover for the incoming terminals are standard equipment. KG250 and KG315 also have protective covers on the outgoing terminals. 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 Current315 A
Mounting TypeE montajı: dört delikli panel
IP RatingIP66
SeriesKG315
Size TypeS2
Function CodeT203
Switch FunctionAcil Durdurma Fonksiyonlu Ana Şalter (0-1)
Switch Positions0-1
Number of Positions2
Front Plate Size (A x B)88 x 88 mm
Handle ColorRed (sarı ön plaka)
Conventional Free Air Thermal Current (Ith)315 A
Ambient temperature for rated current50 °C (24 hours, tepe 55 °C)
Conventional Enclosed Thermal Current (Ithe)315 A
Rated Insulation Voltage (Ui)1000 V (AC 50/60 Hz)
Rated Impulse Withstand Voltage (Uimp)8 kV
Overvoltage categoryIII
Pollution Degree3
Rated Operational Current AC-20A (Ie)1000 V: 315 A
Rated Operational Current AC-21A (Ie)20–690 V: 315 A
Rated Operational Current AC-22A (Ie)220–500 V: 250 A; 660–690 V: 140 A
Rated Operational Power AC-3 (Pe)3-phase: 220–240 V 45 kW; 380–440 V 75 kW; 500 V 90 kW; 660–690 V 45 kW
Rated Operational Power AC-23A (Pe)3-phase: 220–240 V 55 kW; 380–440 V 110 kW; 500 V 132 kW; 660–690 V 45 kW
Maximum Fuse CurrentgG 315 A
Rated Short-Time Withstand Current (Icw)5800 A (1 s)
Breaking Capacity220–240 V: 1800 A; 380–440 V: 1650 A; 660–690 V: 400 A
Power Loss per Pole12.7 W
Solid Conductor Cable Cross-Section16–185 mm2
Stranded Conductor Cable Cross-Section185 mm2
Flexible Conductor Cross-Section25–150 mm2
Conductor Cross-Section with Ferrule16–120 mm2
Cable section (AWG/MCM)MCM 300 (flexible); MCM 350 (solid or stranded)
Conductor MaterialCopper only (individual strands may be tinned or silver-plated; conductor ends must not be soldered)
Tightening Torque16 Nm (140 lb-in)
Recommended Screw Driveralyan anahtar 6 mm
Contact TypeRigid bridging link
Contact MaterialSilver
Connection TypeScrew terminal
UL/CSA Rated Insulation Voltage (Ui)600 V AC

Shipping & assurance

For made-to-order products, the procurement and carrier hand-over time is shared with the quotation.

In rare cases, all or part of an order may be unavailable due to stock or procurement updates. In this case, the customer is informed and the relevant product is cancelled and refunded. A product being open for sale does not guarantee that it is in physical store stock.

Delivery and returns