ℹ️ --- The S-300 (NATO reporting name SA-10 Grumble) is a series of initially Soviet and later Russian long-range surface-to-air missile systems produced by NPO Almaz, based on the initial S-300P version. The S-300 system was developed to defend against aircraft and cruise missiles for the Soviet Air Defence Forces. Subsequent variations were developed to intercept ballistic missiles. The S-300 system was first deployed by the Soviet Union in 1979, designed for the air defence of large industrial and administrative facilities, military bases and control of airspace against enemy strike aircraft. The system is fully automated, though manual observation and operation are also possible. Components may be near the central command post, or as distant as 40 km. Each radar provides a target designation for the central command post. The command post compares the data received from the targeting radars up to 80 km apart, filtering false targets, a difficult task at such great distances.[citation needed] The central command post features both active and passive target detection modes. The project-managing developer of the S-300 is Almaz-Antey. S-300 uses missiles developed by both MKB "Fakel" and NPO Novator design bureaus (separate government corporations, previously named "OKB-2" and "OKB-8"). The S-300P is the original version of the S-300 system which became operational in 1978. In 1987, over 80 of these sites were active, mainly in the area around Moscow. The P suffix stands for PVO-Strany (country air defence system). An S-300PT unit consists of a 36D6 (NATO reporting name TIN SHIELD) surveillance radar, a 30N6 (FLAP LID) fire control system and 5P85-1 launch vehicles. The 5P85-1 vehicle is a semi-trailer truck. Usually, a 76N6 (CLAMSHELL) low altitude detection radar is also a part of the unit. This system broke substantial new ground, including the use of a passive electronically scanned array radar and multiple engagements on the same Fire-control system (FCS). Nevertheless, it had some limitations. It took over one hour to set up this semi-mobile system for firing and the hot vertical launch method employed scorched the TEL. The S-300PS/S-300PM (Russian С-300ПC/С-300ПМ, NATO reporting name SA-10d/e) was introduced in 1985 and is the only version thought to have been fitted with a nuclear warhead. This model saw the introduction of the modern TEL and mobile radar and command-post vehicles that were all based on the MAZ-7910 8 × 8 truck. This model also featured the new 5V55R missiles which increased the maximum engagement range to 90 km (56 mi) and introduced a terminal semi-active radar homing (SARH) guidance mode. The surveillance radar of these systems was designated 30N6. Also introduced with this version was the distinction between self-propelled and towed TELs. The towed TEL is designated 5P85T. Mobile TELs were the 5P85S and 5P85D. The 5P85D was a "slave" TEL, being controlled by a 5P85S "master" TEL. The "master" TEL is identifiable thanks to the large equipment container behind the cabin; in the "slave" TEL this area is not enclosed and is used for cable or spare tyre storage.
📑 ➖➖➖ Kazakhstan's air defence forces received five S-300PS anti-aircraft missile systems (SAM), donated by Russia. This was reported on August 12 2015 at the press service of the Ministry of Defense of the republic. In December 2015, Russia completed the transfer of S-300PS systems to Kazakhstan. Earlier reports noted the delivery of five systems in August 2015. In January 2014, TASS reported Shoigu as saying that in 2014, Kazakhstan would “deliver enough S-300 complexes to Kazakhstan’s armed forces to ensure the protection of the airspace.” “Five divisions of S-300 will be delivered from the surplus of the Russian Defense Ministry,” It’s unclear from Russian media reporting exactly how many systems, in total, Kazakhstan has taken delivery of in recent years.

▪️🛠 Designer Almaz-Antey:
NPO Almaz (lead designer)
NIIP (radars)
MKB Fakel (missile designer for S-300P series)
NPO Novator (missile designer for S-300V series)
MNIIRE Altair (Naval version designer)
▪️✅ Designed 1967–2005
▪️↗️Engagement Envelope
-range [NMI] 2.7-40.5
-altitude [ft] 82-82,000
▪️⏭ Target max speed [KTAS] 2300
▪️⏭ SAM max speed [Mach] < 6.7
▪️⬇️ Weight [lb] 3675.5
▪️⬇️ Warhead weight [lb] 432.7
▪️💥 Warhead type Blast-fragmentation
▪️🕹Guidance system Command link
▪️📏 Length [in] 285.4
▪️↔️ Diameter[in] 20.0
▪️↔️ Tail span[in] 44.25
▪️🔢 Number of stages 1
▪️⚙️ Motor type Solid propellant
▪️🚀 Motor burn duration [sec] 8-10
▪️🛢Storage life [yr] 10

Ref: Wikiepedia; thediplomat; tass