LoadSafe
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LOAD BREAK & CHANGE-OVER SWITCHES

CONTENTS SWITCHES ACCORDING TO IEC 60 947-3 LOAD BREAK SWITCHES 16-800 A - GENERAL INFORMATION TECHNICAL DATA LOAD BREAK SWITCHES, ROTARY (KU) LOAD BREAK SWITCHES 16-40 A8 LOAD BREAK SWITCHES 16-125A (N)10 LOAD BREAK SWITCHES 100-160 A12 LOAD BREAK SWITCHES 200-250A & 160A (P)14 LOAD BREAK SWITCHES 315-400 A16 LOAD BREAK SWITCHES 630-800 A18 COMPACT LOAD BREAK SWITCHES, ROTARY (VKA) LOAD BREAK SWITCHES 200-250 A20 LOAD BREAK SWITCHES, TOGGLE (KUE & EVA) LOAD BREAK SWITCHES 16-125 A22 LOAD BREAK SWITCHES 125-250 A24 DISCONNECT SWITCHES UL DISCONNECT SWITCHES UL98 60-100 A DISCONNECT SWITCHES...

SWITCHES WITHOUT COMPROMISES. Katko is a Finnish family business specialising in safety switches, load break switches and fused switches with more than 70 years of experience. Not all safety and load break switches on the market come from specialised manufacturers by any means, and that is precisely why we are so proud of ours. We design and manufacture every product ourselves in our own factories. The challenging Finnish climate creates a basis for developing switches that work in all conditions across the globe. Switches without compromises. This is what we at Katko think, as did the...

Data subject to change without notice PROTECTION AGAINST OVERVOLTAGE A mechanical switching device capable of making, carrying and breaking currents under normal circuit conditions which may include specified operating overload conditions and also carrying for a specified time currents under specified abnormal circuit conditions such as those of short circuit. Note: A switch may be capable of making, but not breaking, short-circuit currents. Uimp (Impulse withstand voltage) defines the device’s use in abnormal network conditions with overvoltage due to lightning on overhead wires etc. This...

Data subject to change without notice LOAD BREAK SWITCHES 16-800 A ROTARY AND TOGGLE SWITCHES General information: General installation and life-cycle manual The professional range of KATKO Load Break Switches consists of rotary and toggle switches. Types KU and VKA are rotary switches while KUE and EVA are toggle switches. The KATKO range is available from 16 A up to 800 A. Also 1000-3150 A is available on request. Katko’s general installation manual is available on Katko’s website at www.katko.com/terms-conditions. This manual contains important information about installation and...

Data subject to change without notice TECHNICAL DATA LOAD BREAK SWITCHES LOAD BREAK SWITCHES Rated insulation voltage, Ui (V) Rated thermal current, Ith (A) Nominal values with cable size (mm²) Rated operational current, Ie (A) 400/415V AC-21A Rated operational power for 3-phase (1500 r.p.m.) squirrel cage induction motors (kW) Rated fused short circuit current Back-up fuse (A) R.M.S. value, Ik (kA) Impulse withstand voltage, Uimp (kV) Rated short circuit making capacity, Icm (kA) 690V Rated short time withstand current (1 s), Icw (kA) Rated breaking capacity, Icn (A) AC-23A Electrical...

Data subject to change without notice TECHNICAL DATA LOAD BREAK SWITCHES LOAD BREAK SWITCHES Rated thermal current, Ith (A) Nominal values with cable size (mm²) Rated insulation voltage, Ui (V) Rated operational current, Ie (A) AC-21A Rated operational power for 3-phase (1500 r.p.m.) squirrel cage induction motors (kW) 7.5 Back-up fuse (A) R.M.S. value, Ik (kA) AC-23A Rated fused short circuit current Impulse withstand voltage, Uimp (kV) Rated short circuit making capacity, Icm (kA) 690V Rated short time withstand current (1 s), Icw (kA) Rated breaking capacity, Icn (A) AC-23A Electrical...

Data subject to change without notice LOAD BREAK SWITCHES 16-40 A ROTARY SWITCHES LOADSAFE KU & RT SERIES DIN-rail or screw mounting 3-pole and 4-pole KU-switches as standard. 1 and 2-pole upon request Switch technology by means of silver contacts ensures safe and durable operation Compatible with handles LKX50 and LK10 RT version is suitable for door mounting and will be delivered with 42 mm shaft and LKX50 (black) or LKX50YR (yellow/red) handle KU 3 and 4 pole will be delivered with black direct handle NEW 16-40 A LOAD BREAK SWITCH MANUFACTURED IN HELSINKI, FINLAND SWITCHES Type Switch...

Data subject to change without notice TECHNICAL DATA LOAD BREAK SWITCHES Rated insulation voltage, Ui (V) Rated thermal current, Ith (A) Nominal values with cable size (mm²) Rated operational current, Ie (A) 400/415V AC-21A 500V 690V 400/415V AC-22A 500V 690V 400/415V 500V AC-23A 690V 1000V Rated operational power for 3-phase (1500 r.p.m.) squirrel cage induction motors (kW) AC-23 Rated fused short circuit current Back-up fuse (A) R.M.S. value, Ik (kA) Peak value (kA) Impulse withstand voltage, Uimp (kV) Rated short circuit making capacity, Icm (kA) 690V Rated short time withstand current...

Data subject to change without notice LOAD BREAK SWITCHES 16-80 A & 125A (N) ROTARY SWITCHES LOADSAFE KU SERIES DIN-rail mounting 3-pole and 4-pole KU-switches as standard. 2-pole upon request Switch technology by means of silver contacts ensures safe and durable operation 4-pole versions with early-make and late-break neutral pole Compatible with handles LK10 and LK11 Switch Type Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break Switch Load Break...

Data subject to change without notice Attention! Cable connectors must be used with Al-cables. With Cu-cables cable connector usage is optional. Other connectors may be compatible, ask for more options. CABLE CONNECTORS - SUGGESTIONS PER CABLE CROSS SECTION 16 - 40 A, Al cable Terminal position Terminal cover Terminal cover Terminal position Terminal cover Terminal cover All connectors and more information available in KATKO ConnectSafe Catalogue. You will find it here: www.katko.com/downloads TECHNICAL DATA LOAD BREAK SWITCHES Rated insulation voltage, Ui (V) Rated thermal current, Ith (A)...