Automation technology industrial controls protection equipment overload relays sirius 3ru2 thermal overload. Siemens iec overload relays previously purchased use siemens iec overload relays with contactors in the motor starter, overload relays are designed to open the starting circuit and cut the power to the motor if it begins to draw too much current for an extended time. Schneider electric lrd 3 pole thermal overload relays come in amp ranges from 1 to 65 amps, have class 10 tripping, mount directly to any lc1d contactor and have a set of auxiliary contacts for signalling. Motor overload relays and thermal units help prevent motor damage and extend motor life.
A completely new generation of circuit breakers, contactors, overload relays and load feeders in seven sizes up to 250 kw is ready for use. To provide additional protection siemens offers circuit breakers to protect against severe electrical shock or electrocution, mitigate the risk of electrical fires and protect. Automatic or manual reset adjustment a manual test button is provided to test the operation of the 3pole overload relay control contacts w15% nominal trip current adjustment accept either standard class 20 or quick trip nema class 10 heater elements without any other changes or adjustments available with a normally open contact. Schneider electric lrd 3 pole thermal overload relays. Siemens 3ru164fb0 class 10 thermal overload relay for direct mounting on size s2 contactors 3rt1033, 3rt1034, 3rt1035 and 3rt1036, is adjustable from 28a to 40a and has phase loss protection. As a brand thats been paving the way from the beginning, the siemens modular system specializes in the switching, starting, protecting and monitoring of motors and industrial systems.
Note that while thermal overload relays require a heater selection based on a relatively wide ampere range, the esp200 overload relay has many clicks covering the same ampere range. Siemens is known worldwide as an industrial controls trendsetter. Sirius control offers the largest available switching device portfolio in the market. The thermal overload protection with consideration of preload. Siemens canada limited industrial control product catalog 2019. Thermal overload relays are some of the most popular types of relays in the industry. Equipment manual sirius 3ru thermal overload relays. Similarly, motors that require only onethird, onefourth, or onefifth the overloads fla capability can use the. Under the same condiing performance of a heater conventional thermal adjustment tions the trip time will be the less solidstate overload. Siemens 48bth3s00 overload relay esp200 coils only for. Thermal overload protection ansi 49 the thermal overload protection function provides tripping or alarming based on a thermal model calculated from phase currents.
As an already registered user simply enter your userame and password in the login page in the appropriate fields. Siemens overload relay wiring diagram free wiring diagram. Overload relay to retrofit existing thermal furnas brand starters with the esp100 solid state overload relay add the appropriate suffix to the end of the catalog number from the retrofit plates. You can find a large inventory of other trusted siemens overload relays, including thermal magnetic and bimetal series.
The bimetal ambient compensated overload relay heater elements are available in class 20 or class 10 ratings. Siemens 48bth3s00 overload relay esp200 coils only for sale. The 3ru11 thermal overload relays are electrically and mechanically. Sirius 3ru thermal overload relays sirius 3rb electronic overload relays manual, 092016, a5e03656507420arsab003 9 introduction 1 1. Nema overload and current sensitive relays siemens usa. Overload relays thermal overload relays product catalog. Resetting takes places manually or automatically after a recovery time has elapsed.
Designed to replace thermal, or esp100 overload relays for any application. The thermal capacity can be obtained from the true rms phase currents, taking into account. Design principle overload relay functions nema class 10 tripping characteristics. Siemens industry catalog automation technology industrial controls protection equipment overload relays. Industrial controls catalog siemens speedfax previous folio. Overload relays siemens 2011 5 general data 1 the sirius 3ru11 thermal overload relays use a bimetal contactor and therefore do not require a control supply voltage. Buy siemens thermal overload relays online in india.
Selector switch for manualautomatic reset and reset button. Protection equipment overload relays reference manual. Features benefits 3ru11 3rb203rb21 3rb223rb23 other features internal power supply eliminates the need for configuration and connecting an additional control circuit1. If your motor circuits cant stand the heat, its time to get a thermal overload relay. Protection of 3 phase ac motors in sinusoidal 5060hz network.
Sirius innovations sirius 3ru2 thermal overload relays. The 3ru21 thermal overload relays up to 80 a have been designed for currentsensitive protection of. View and download siemens 3rb12 instructions manual online. It shows the components of the circuit as simplified forms, and the power and also signal links between the gadgets. Overload relays are used to protect motors from excessive heat resulting from sustained motor overloads, rapid motor cycling, stalled rotor conditions and phase loss. The ambient temperature or the temperature of the coolant can be detected serially via an external temperature monitoring box also called thermobox. The 3ru11 thermal overload relay or the 3rb223rb23 solid. Siemens iec overload relays grainger industrial supply. The benefit of the modular system lies in its modular setup of the components across all sizes. Siemens 3ua overload relays overload relays siemens. Unfollow siemens overload relays to stop getting updates on your ebay feed.
September 1995 thermal overload ansi 4949r the relay uses a thermal memory to resemble the remaining thermal capacity of the protected device. Sirius innovations sirius 3ru2 thermal overload relays sirius 3rb3 solidstate overload relays manual, 092014, a5e03656507420arsaa002 9 introduction 1 1. Siemens motor overload relays and thermal units grainger. Thermal overload relays are electromechanical devices that protect a systems main circuitry from failure due to overheating. Reference manual protection equipment overload relays. A wiring diagram is a streamlined traditional pictorial representation of an electrical circuit. Switch position indicator and test function stop button selector switch for manualautomatic reset screw connection or springclamp versions impulse voltage resistance 6 kv insulation voltage 690v surface or dinrail standalone mounts available, see 7061699 etc. Siemens industry catalog automation technology industrial controls protection equipment overload relays sirius 3ru2 thermal overload relays. Siemens 3ru21 264eb0 sirius thermal overload relay reset.
There is a minimum advertised price map allowed by the manufacturer on this product. Summary of changes this manual contains new and updated information as indicated in the following table. Overload relays sirius 3rb3 electronic overload relays. Siemens 3ru21264bb0 overload relay cl10 s0 1420a screw.
Siemens overload relays type 3ua specifications the 3ua overload relays meet or ex ceed the requirements of nema, ee mac, ul, csa, iec, vde and other international standards. Siemens 3ru11161kb0 class 10 thermal overload relay for direct mounting on size s00 contactors 3rt1015, 3rt1016 and 3rt1017, is adjustable from 9a to 12a and has phase loss protection. As opposed to electronic relays, they utilize a heat detection mechanism to open up circuits in case of an overload. With the communicationcapable sirius 3rb24 electronic overload relay for io link you can easily connect your load feeder to a higherlevel control and therefore integrate it into your automation environment. Esp200 overload relays provide accuracy unmatched in the market. Manual motor protectors can keep equipment from overheating and overloading. This manual describes how to install, configure, operate, and troubleshoot the e300 electronic overload relay. This is a measure for the allowed heating of the protected device. Sirius 3ru2 thermal overload relays industry mall siemens. All offered thermal overload relays can be matched with a corresponding main contactor. Overload relays thermal overload relays page 3 kent. Note the width and height measurements of the overload relays are dependent on the contactor they are used on. Easily accessible reset button, provides visible and audible indications to ensure the tripped overload is ready to restart. Siemens industry catalog automation technology industrial controls protection equipment overload relays sirius 3rb3 electronic overload relays.
Siemens sirius 3ru21264bb0 thermal overload relay, 14 to 20a range, size s0, trip class 10, manualautomatic reset, contactor mounting, screw terminal misc. More information system manual sirius system overview, see. With busbar connection or as straightthrough transformer. A device set to manual reset can be reset locally by pressing. Overcurrent protection 7sj602 siprotec 7sj602 multifunction overcurrent and motor protection relay siemens sip edition no.
Thermal overload relays for use with tesys k contactors. Overload relays sirius 3rb3 electronic overload relays 3rb30, 3rb31 for standard applications 7 technical specifications the following technical information is intended to provide an initial overview of the various types of device and functions. Ol supp 35 overload relays siemens ic 10 2012 775 generaldata 7 available not available 1 sirius 3ru21 thermal overload relays use a bimetal contactor and therefore do not require a control supply voltage. Like overload relay siemens sirius 3ru21161fb0 with a current range of 3. At automation24, we offer thermal overload relays at excellent prices. Thermal units are for use in motor starters to help provide motor protection up to 266 full load amps.
Siemens 3ru21 264eb0 sirius thermal overload relay resetmanual remoteautomatic 1 no, 1 nc 27 32 a. With repeat accuracy of greater that 99%, trips can be set to the most specific conditions, resulting in both longer motor life and cost savings. Overload relay melting alloy overload relay, the bimetal ambient compensated overload relay can be set for manual or selfresetting operation. As the electronic overload relay supports the transmission of analog process variables such as currents, system processes can be. Use siemens iec overload relays with contactors in the motor starter, overload relays are designed to open the starting circuit and cut the power to the motor if it begins to draw too much current for an extended time. Access relay parameters the spreadsheet that is attached to this pdf details the e300 parameters. The manual or automatic reset feature on this sirius series relay helps handle nuisance tripping when automatic reset is enabled and prevents. The manual or automatic reset feature on this sirius series.
Siemens offers a wide array of thermalmagnetic circuit breakers that are the key element for overload and shortcircuit protection of your homes electrical system. Overload relays furnas controls overload relays furnas. Manual overload test 1m 1m dut 1m 1m from current source nc contact of relay connections of thermal overload relay for ol testing testing of thermal overload relay 1. Siemens sirius 3ru21264bb0 thermal overload relay, 14 to 20a range, size s0, trip class 10, manual automatic reset, contactor mounting, screw terminal misc. Manual sirius 3ru thermal overload relays sirius 3rb. Sirius 3ru thermal overload relays sirius 3rb electronic overload relays manual, 122017, a5e03656507420arsac004 9 introduction 1 1. The esp200 solid state overload relay is so simple to configure. Equipment manual sirius 3ru thermal overload relays sirius 3rb electronic overload relays. Class 10, 7 to 10a 690v lrd14 thermal overload relay, class 10, 7 to 10a 690v sku. Iec overload relays help adjust the maximum current a motor is allowed to draw. Overload relays solid state esp200, class 48, 958 and 958l. The 3rb2 range of solid state electronic overloads can be connected directly to siemens sirius contactors to provide accurate motor overload protection with enhanced single phase sensitivity,application. An adjustment dial located on the unit allows the ampere trip setting to be adjusted by 15%. Here are some important details for siemens overload relay.
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