Controlling & Switching Main Load Disconnector Switch (Isolator) IS Rated Current (A) Poles Type Designation Article No. Units per package SG10611 16 1 IS-16/1 276254 12 / 120 16 2 IS-16/2 276255 1 / 60 16 3 IS-16/3 276256 1 / 40 16 4 IS-16/4 276257 1 / 30 20 1 IS-20/1 276258 12 / 120 20 2 IS-20/2 276259 1 / 60 20 3 IS-20/3 276260 1 / 40 20 4 IS-20/4 276261 1 / 30 25 1 IS-25/1 276262 12 / 120 SG10711 25 2 IS-25/2 276263 1 / 60 25 3 IS-25/3 276264 1 / 40 25 4 IS-25/4 276265 1 / 30 32 1 IS-32/1 276266 12 / 120 32 2 IS-32/2 276267 1 / 60 32 3 IS-32/3 276268 1 / 40 32 4 IS-32/4 276269 1 / 30 40 1 IS-40/1 276270 12 / 120 40 2 IS-40/2 276271 1 / 60 SG10811 40 3 IS-40/3 276272 1 / 40 40 4 IS-40/4 276273 1 / 30 63 1 IS-63/1 276274 12 / 120 63 2 IS-63/2 276275 1 / 60 63 3 IS-63/3 276276 1 / 40 63 4 IS-63/4 276277 1 / 30 80 1 IS-80/1 276278 12 / 120 80 2 IS-80/2 276279 1 / 60 80 3 IS-80/3 276280 1 / 40 SG10911 80 4 IS-80/4 276281 1 / 30 100 1 IS-100/1 276282 12 / 120 100 2 IS-100/2 276283 1 / 60 100 3 IS-100/3 276284 1 / 40 100 4 IS-100/4 276285 1 / 30 125 1 IS-125/1 276286 12 / 120 125 2 IS-125/2 276287 1 / 60 125 3 IS-125/3 276288 1 / 40 125 4 IS-125/4 276289 1 / 30 Accessories SG47812 Switching interlock without lock IS/SPE-1TE 101911 5 / 30 for Isolators, RCDs, combined RCD/MCBs, ... Terminal cover Z-IS/AK-1TE 276290 10 / 600 17Controlling & Switching Main Load Disconnector Switch (Isolator) IS Load circuit breaker with isolating function Connection diagram Design according to IEC/EN 60947-3 1-pole 2-pole 3-pole 4-pole Highly wear resistant contacts Quick make, black toggle 2 Terminal capacity 50 mm Compatible busbars with switchgear series Xpole by use of the mouth ter- minal in combination with standard fork busbar Technical Data IS-16 IS-20 IS-25 IS-32 IS-40 IS-63 IS-80 IS-100 IS-125 Electrical Design according to IEC/EN 60947-3 Rated voltage 240/415V Frequency 50/60 Hz Rated insulation voltage U 690 V~ i Rated peak withstand voltage U 6 kV imp Pollution degree 3 Rated short-time withstand current I 2 kA cw Rated short-circuit making capacity I 2.8 kA cm Rated current 240/415V, AC23A 16 A 20 A 25 A 32 A 40 A 63 A 80 A 100 A 125 A Number of poles 1-, 2-, 3-, 4-pole Maximum back-up fuse 125 A gG Short circuit strength - with back-up fuse acc. to the applicable rules IEC/EN 60947-3 12.5 kA 12.5 kA 12.5 kA 12.5 kA 12.5 kA 12.5 kA 12.5 kA 10 kA 10 kA Endurance electrical comp. op. cycles 3,000 3,000 3,000 3,000 3,000 3,000 3,000 3,000 2,000 mechanical comp. op. cycles 16,000 16,000 16,000 16,000 16,000 16,000 16,000 16,000 14,000 Mechanical Frame size 45 mm Device height 80 mm Device width 17.5mm/pole Mounting quick fastening with 2 lock-in positions on DIN rail IEC/EN 60715 Degree of protection, built-in IP40 Terminal protection finger and hand touch safe according to BGV A3 Terminals Twin-purpose terminals 2 Terminal capacity 2.5 - 50 mm Busbar thickness 0.8-1.0 mm Fastening torque of terminal screws 2.5 - 5 Nm Function irrespective of the position of installation Dimensions (mm) Terminal cover caps Z-IS/AK-1TE Anti-tamper device IS/SPE1TE Switching interlock IS/SPE-1TE Terminal Cover Caps Z-IS/AK-1TE Without lock Can be sealed with leads Also suitable for PFIM, CFI6, PKNM, CKN6 Modular design, width 1 MU 33