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IS series
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C O M P O N E N T S Indoor Switch for Rolling Stock Type IS

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The IS is a single pole off-load switch, electrically operated, and designed to be installed inside electric traction vehicles running on 25kVac and/or 15kVac networks. It is available in two main executions: disconnect switch or disconnect and earthing switch. Applications Indoor Switch for locomotives, trains and EMUs running on ac networks. Disconnect switch Application D Disconnect and earthing switch Application E Main features • Rated operational voltage 27.5 kVac • Rated free air thermal current 1000 A • Insulation level OV3 between poles and to earthed base plate • High rated...

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Technical data Symbol Unit IS25.10 IS25.10 D E [kVac] [kVac] [A] [kA] [kA] [s] 27.5 27.5 1000 63 25 1 27.5 27.5 1000 63 25 1 [kVrms] [kV] OV3 OV3 75 125 OV3 OV3 80 125 Application MAIN HIGH VOLTAGE CIRCUIT Rated operational voltage (1) Rated insulation voltage (1) Conventional free air thermal current (1,2) Peak and rated short-time withstand current Overvoltage category - Pole-pole - Pole-earth Rated power-frequency withstand voltage (50 Hz, 1 mn) Rated impulse withstand voltage (1.2 / 50 µs) Ue Ui Ith Îcw Icw t U50 Uimp (1) For higher values, please contact Sécheron (2) at Tamb=+40°C;...

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Main dimensions Weight: 32 kg for IS25.10D The maximum allowed flatness deviation of the support frame is 1 mm. 34 kg for IS25.10E HV and earth connections: M12 screws. The DIN-ISO 2768-1 coarse tolerances are applied to these dimensions. All dimensions are in mm. IS25.10D 262 102 15 393 291 HV: M12 12 486 462 306 282 HV HV 4xØ11 IS25.10E 241 Ø23 7 15 310 283 HV 139 Ø11 Ø14 500 470 165 137 122 92 67 15 15 4 37.5 HV: M12 HV: Ø14

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Isolating distance Minimum isolating distance: 210 mm for Ue = 27.5 kV 105 mm for Ue = 27.5 kV 120 mm for Ue = 17.25 kV 60 mm for Ue = 17.25 kV IS25.10D IS25.10E 5

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Options Protecting cover for LV part Protection index: IP2x 108 IS25.10D 84.5 213 81 341 141 IS25.10E 413 48 101 Manual operating handle In emergency situation, the switch can be manually operated by means of a handle fixed at the end of the motor axle. 6

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Technical information (for standard executions) Control equipment Two mechanically linked contactors stop the motor at the end of each stroke when they receive the order from the motor auxiliary contacts. Definition of the auxiliary switches Potential free switch Type: PF a The contact “a” corresponds to a NO (Normally Open) contact. The contact “b” corresponds to a NC (Normally Close) contact. b Part number for separately ordered items LV mobile connector Auxiliary switches Fixed connector type Type Mobile connector Number of pin Cable Cable Size Size entry 2.5 mm² 1.5 mm² gland Secheron's...

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Designation code (options are subject to additional costs) - Order form • Be sure to establish the designation code from the latest version of our brochure by downloading it from the website: • Be careful to write down the 15 digits for the type designation code when placing your order. • It could be, for technical reasons, that some configurations of variants and options indicated in the designation code • For other configurations not described in the brochure, please contact Secheron. (1) refer to page 7 for definition of the auxiliary switches The low voltage mobile connector must be...

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