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3RT10171BB41 Datasheet(PDF) 8 Page - Siemens Semiconductor Group |
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3RT10171BB41 Datasheet(HTML) 8 Page - Siemens Semiconductor Group |
8 / 70 page 3RT, 3TB, 3TF Contactors for Switching Motors 3RT10 contactors, 3-pole, 3 ... 250 kW 3/8 Siemens LV 1 · 2006 ■Overview 3RT10 contactors, 3-pole, sizes S00 to S3, up to 45 kW AC and DC operation IEC 60947, EN 60947 (VDE 0660) The 3RT1 contactors are climate-proof. They are finger-safe according to EN 50274. The 3RT1 contactors are available with screw terminals or with Cage Clamp terminals. Size S00 contactors have an auxiliary contact integrated in the basic unit. The basic units of sizes S0 to S3 contain only the main circuits. All basic units can be extended with auxiliary switch blocks. For size S0 and higher, complete units with 2 NO + 2 NC are available (connection designation according to EN 50012). The auxiliary switch block can be removed (for more information see LV 1 T). In addition, complete units with permanently mounted auxiliary switch block (2 NO + 2 NC according to EN 50012) are offered for sizes S00 and S0. These versions are built according to special Swiss regulations "SUVA" and are distinguished externally by a red identification plate. The size S3 contactors have removable box terminals for the main conductor connections. This permits connection of ring terminal lugs or busbars. Contact reliability If voltages 110 V and currents 100 mA are to be switched, the auxiliary contacts of the 3RT1 contactor or 3RH11 contactor relay should be used as they guarantee a high level of contact reliability. These auxiliary contacts are suitable for electronic circuits with currents 1 mA at a voltage of 17 V. Short circuit protection of the contactors For more information about short circuit protection of contactors without overload relay, see Technical Specifications. For more informaiton about short circuit protection of the contactors with overload relay, see "Overload Relays". When installing fuseless motor feeders, the combinations of circuit-breakers and contactors described under "Fuseless Load Feeders" must be used. Motor protection 3RU11 thermal overload relays or 3RB20 solid-state overload relays can be fitted to the 3RT1 contactors for protection against overload. The overload relays must be ordered separately. Overvoltage damping 3RT1 contactors can be retrofitted with RC elements, varistors, diodes or diode assemblies (assembly of diode and Zener diode for short tripping times) for supressing opening surges in the coil. The surge suppressors are plugged onto the front of size S00 contactors. Space is provided for them next to a snap-on auxiliary switch block. For size S0 to S3 contactors, varistors and RC elements can be snapped on either on the top or directly below the coil connections. Diode assemblies are available in 2 different versions on account of their polarity. Depending on the application they can be connected either only at the bottom (assembly with circuit-breaker) or only at the top (assembly with overload relay). The plug-in direction of the diodes and diode assemblies is specified by coding. Exceptions: 3RT19 26-1T.00 and 3RT19 36-1T.00; the plug-in direction is indicated here with "+" and "-". Coupling relays are supplied either without overvoltage damping or with a varistor or diode connected as standard, according to the version. Note: The OFF-delay times of the NO contacts and the ON-delay times of the NC contacts increase if the contactor coils are damped against voltage peaks (noise suppression diode 6 to 10 times; diode assemblies 2 to 6 times, varistor +2 to 5 ms). 3RT10 contactors, 3-pole, sizes S6 to S12, >45 to 250kW • 3RT10, contactors for switching motors, • 3RT12, vacuum contactors for switching motors, • 3RT14, contactors for AC-1 applications. Operating mechanism types Two types of solenoid operation are available: • Conventional operating mechanism • Solid-state operating mechanism (with 3 performance levels) UC operation The contactors can be operated with AC (40 to 60 Hz) as well as with DC. Withdrawable coils For simple coil replacement, e.g. if the application is replaced, the magnetic coil can be pulled out upwards after the release mechanism has been actuated and can be replaced by any other coil of the same size. Auxiliary contact complement The contactors can be fitted with up to 8 auxiliary contacts (identical auxiliary switch blocks from S0 to S12). Of these, no more than 4 are permitted to be NC contacts. 3RT10 and 3RT14 contactors: Auxiliary contacts mounted laterally and on front 3RT12 vacuum contactors: Auxiliary contacts mounted laterally Contactors with conventional operating mechanism Version 3RT1...-.A: The magnetic coil is switched directly on and off with the control supply voltage Us by way of terminals A1/A2. Multi-voltage range for the control supply voltage Us: A single coil covers several control supply voltages of similar ranges which are used worldwide, e.g. UC 110-115-120-127 V or UC 220-230-240 V. In addition, allowance is also made for a coil operating range of 0.8 times the lower (Us min) and 1.1 times the upper (Us max) rated control supply voltage within which the contactor switches reliably and no thermal overloading occurs. |
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