COMPONENTS Multi-functional Main AC Switch for rolling stock Type MACS

With the MACS, Sécheron offers a new generation of AC vacuum circuit-breaker to the manufacturers and operators of vehicles running on AC networks. This product completes the BVAC’s range that has been marketed by Sécheron since 1991. All the field experience gathered since then on thousands of BVAC in operation worldwide, has been integrated to provide the MACS with the maximum added value for car builders and operators. The MACS is a multi-functional switch that is proposed in three main variants: the AC circuit-breaker (AC VCB) remains the core of the product, to which an Earthing Switch (ES)...

Technical data Symbol Unit 15 kV 25 kV [VAC] [VAC] [A] [A] [Hz] 17’250 (1) 27’500 (1) 1000 1000 16.7 C3 63 25/50 63/25/1 75 125 27’500 (1) 27’ 500 (1) 1000 1000 50, 60 C3 50 20/50 63/25/1 75 125 / 170 MAIN HIGH VOLTAGE CIRCUIT AC Circuit-Breaker Rated operational voltage Ue Rated insulation voltage Ui Rated operational current Ie Conventional free air thermal current (2) Ith Rated operational frequency f Operational category Peak short-circuit making current IMC Rated short-circuit breaking current / % value of the DC component Peak and rated short-time withstand current Îcw/Icw/t Rated power-frequency...

Main dimensions The DIN-ISO 2768-1 coarse tolerances are applied to these dimensions. All dimensions are in mm. The maximum allowed flatness deviation of the support frame is 1 mm. Weight: Refer to the table HV and earth connections: M12 screws. Uimp (kV) HV 241 125 A (mm) 563 B (mm) 280 Weight (kg) 95±2 15 B A HV 170 578 295 96±2 150* 200* 140 Installation frame level 150* 420 420 64 32 880 114 101 420 22.5 385 >430 330 Roof opening and frame dimensions 105 150 388 385 430 420 65 110 406 6 x M12 320 >940 940 *: Space needed to remove the cover and to operate the optional Earthing Switch. Options...

AC Circuit-Breaker and Earthing Switch (Uimp = 170 kV) Weight: AC Circuit-Breaker + 14 kg (manual version) AC Circuit-Breaker + 22 kg (electric version) Electric version (option) Manual version (standard) HV 142 50* 150* 870 220* 140 140 546 HV 303 320* 61 47 AC Circuit-Breaker and Surge Arrester Surge Arrester connections: M12 screws. Weight: Refer to the table page 6 for the additional weight of Surge Arrester. H: refer to page 6 for the Surge Arrester height. 15 H HV The connection between the AC Circuit-Breaker and the Surge Arrester is not represented on the drawing but is available in the...

AC Circuit-Breaker and Surge Arrester Secheron recommends for a safe and efficient protection against lightning and switching overvoltages to use two Surge Arresters, SA1 and SA2, in the high voltage circuit of the vehicle. Should the customer want to integrate one Surge Arrester to the MACS, the appropriate type corresponding to application and service conditions can be found in the following table. • Metal oxide Surge Arrester without spark gaps, designed for rolling stock applications and outdoor mounting • High current impulse ln = 4/10 us : 100 kApeak • Maximum ambient temperature: +40°C...

Definition of the auxiliary switches Potential free contact Type: PF a The contact “a” corresponds to a NO (Normally Open) contact. The contact “b” corresponds to a NC (Normally Close) contact. b Designation code for separately ordered items LV mobile connector for AC Circuit-Breaker MACS configurations Auxiliary switches Device (1) Number Type (2) Fixed connector type Type Mobile connectors Number of pin Cable Cable Size Size gland entry 2.5 mm² 1.5 mm² Secheron's number Case 1 AC VCB Case 2 AC Circuit-Breaker without Earthing Switch AC VCB 4a + 4b 8a + 8b PF PF SG325249R00101 Harting HAN 51...