{{Short description|Santiago Metro train}} {{refimprove|date=December 2025}} {{Expand Spanish|date=April 2022|topic=transport}}{{Infobox EMU | name = NS 93 | image = NS 93, Metro de Santiago.jpg | imagesize = 300px | caption = NS 93 approaching Pedrero on Line 5 | manufacturer = GEC Alsthom | operator = Metro S.A. (Santiago Metro) | formation = 6 cars (Line 5)<br> 7 cars (Line 5)<br> 8 cars (Line 1) | numberbuilt = 34 (2 retired) | lines = 14px|link=Santiago Metro Line 1 and 14px|link=Santiago Metro Line 5 | constructed = 1996–2003 | stocktype = | service = 1997–present | capacity = 6 cars: 1145 passengers 7 cars: 1315 passengers 8 cars: 1400 passengers | maxspeed = {{convert|100|km/h|mph|abbr=on}} | powersupply = | traction = GTO–VVVF | electricsystem = 750 V DC Guide bars on either side of the track | collectionmethod = Horizontal contact shoe<br>A vertical contact shoe sliding on the rails provides grounding. | gauge = {{RailGauge|sg|allk=on}}, <!-- See Montreal Metro! --> rubber tired wheels running on roll ways outside of the steel wheels. | poweroutput = {{convert|2800|kW|hp|abbr=on|lk=on}} }}
The '''NS 93''' (Neumático Santiago 1993) is the third generation of rubber tired rolling stock used on the Santiago Metro system. The trains were manufactured by GEC Alsthom in 1996 and went into operation in 1997. Originally designed for use on Line 5, the trains first operated on Line 2 prior to the opening of Line 5, and today work on the lines 1 and 5.
== Features == The NS 93 series is based on the design of MP 89 series from the Paris Métro, along with sloped ends, automatic doors and through gangways from car to car. However, the NS 93 is slightly taller than the MP 89 to accommodate air conditioning, and they operate in 6 or 7 car formations on Line 5 (S-N-NP-N-N-S or S-N-NP-N-R-N-S) and 8 car formations on Line 1 (S-N-N-NP-N-R-N-S). As a result, the trains can operate in six-car {{convert|90|m|ftin|0|adj=on|sp=us}}, seven-car {{convert|105|m|ftin|adj=on|sp=us}}, and eight-car {{convert|120|m|ftin|0|adj=on|sp=us}} lengths, depending which line they are assigned to. The length of each car is {{convert|14.88|m|ftin|sp=us}} ({{convert|15.38|m|ftin|sp=us|disp=or|abbr=out}} for cars containing the driver's cab).
The interior of the NS 93 has a cream white scheme with orange plastic seating. Each trainset is also equipped with a train speed surveillance system (SACEM), which the MP 89 does not have. In 2010, automated station announcements were added to all trains. Since 2016 some trains are equipped with CBTC for better frequency in Line 1.
== Other Specifications == *Tread safety wheels: {{convert|1,435|mm|ftin|frac=8|abbr=on}} *Drive System: Four three-phase asynchronous AC motors (1 motor per bogie) *Engine power: {{convert|2.400|kW|hp|abbr=on}} *Acceleration: {{convert|1.25|m/s2|ft/s2|abbr=on}} *Year of manufacture: From 1996 (N2051) until 2003 (N2084)
== Incidents == On February 7, 2012, a train entering Lo Ovalle depot derailed near a condominium complex and playground. The train was not in service at the time and was only operating in testing mode following repair work. No injuries were reported, but the train and surrounding property, including four vehicles, suffered substantial damage.<ref>[https://web.archive.org/web/20120212080358/http://daily.bhaskar.com/article/WOR-TOP-watch-chilean-metro-train-derails-crashes-into-building-2842808.html "Watch: Chilean metro train derails, crashes into building"] (''Daily Bhaskar'')</ref>
On September 11, 2015, a NS-93 was burned on Line 1 at Manquehue Station. No people were injured.
On May 17, 2022, an electrical failure from a NS-93 produced an electric arc and burst on Line 1 at Las Rejas Station, where two people were injured, 3 years later the damaged train was repaired and sent back to passenger service in Line 1.
== References == *''The information in this article'' ''is based on that in its Spanish equivalent''. {{Reflist}} *{{in lang|es}} [http://www.metrosantiago.cl/files/licitaciones/Bases_Precalificacion_CBTC.zip Metro de Santiago]
{{Santiago Metro}}
Category:Alstom multiple units Category:Electric multiple units of Chile Category:Santiago Metro Category:Train-related introductions in 1997 Category:750 V DC multiple units