Siemens 3RN1 User's Manual
Contents
1. Cs voltage fails isolation RESET Contacts Power supply Order No voltage V 50 60 Hz V AC Terminal A1 is connected to the Auto 1CO 24 ACIDC 3RN10 00 1AB00 common of the changeover contact 230 AC 3RN10 00 1AM00 Auto 1NO 1NC 24 ACIDC 3RN10 10 1CB00 230 AC 3RN10 10 1CM00 2CO 24 AC DC 3RN10 10 1BB00 230 AC 3RN10 10 1BM00 Manual Remote 1 1NO 1NC 24 ACIDC 3RN10 11 1CB00 110 230 AC 3RN10 11 1CK00 Short circuit detection in the sensor circuit Manual Remote 1 2CO 24 ACIDC 3RN10 11 1BB00 230 AC 3RN10 11 1BM00 Holding on supply failure fct Manual Auto Remote 1NO 1NC 24 ACIDC 3RN10 12 1CB00 110 230 AC 3RN10 12 1CK00 Holding on supply failure fct Manual Auto Remote 2 CO 24 ACIDC 3RN10 12 1BB00 short circuits in the sensor circuit are CO 230 AC 3RN10 12 1BM00 displayed 2 CO hard gold plated 24 AC DC 3RN10 12 1GB00 Holding on supply failure fct Manual Auto Remote 2CO 24 ACIDC 3RN10 13 1BB00 short circuits and wire breakage in the sensor circuit are detected www siemens com simirel Automation and Drives Partner des Elektro GroBhandels Werner von Siemens Str 50 D 91050 Erlangen Germany Siemens AG The information provided in this brochure contains merely general descriptions or characteristics of performance which in case of actual use do not always apply 2 CO hard gold plated 24 240 ACIDC 24 240 ACIDC as described or which may change as a result of further development of the products An obligation to provide the resp2. SIEMENS Applications Motor monitoring with PTC in the winding e For long starting and braking operations e For high switching frequencies e For increased ambient tempera tures e When the cooling medium flow is restricted e For AC drive operation Highlights e All products are PTB ATEX certified e Wire breakage and short circuit in the sensor circuit are displayed e Versions with hard gold plated relays which are electronics compatible e Favorably priced compact device A1 11 jumpered e Either screw or cage clamp termi nal connection system The power and lifetime of motors is essentially limited by the winding temperature Motor manufacturers integrate PTC sensors in the motor winding if more stringent requirements prevail e g for high ambient temperatures or where cooling is restricted The thermistor motor protection devices operate according to the closed circuit principle detect these limit temperatures and switch the output relay contacts SIMIREL relays from A toZ ineering Electrical Eng f gt a e ten v ge v W a SIMIREL 3RN1 thermistor motor protection for PTC thermistor temperature sensors Screw connection Monostable version e All relays with e 22 5 mm wide Thermistor motor protection closed circuit principle ACIDC 24 V relays for PTC thermistors trips when the control have electrical type A PT
3. ective characteristics shall only exist if expressly agreed in the terms of contract Siemens AG 2003 3RN10 13 1BW10 3RN10 13 1GW10 1 Reset by either pressing the RESET button or interrupting the power supply voltage Subject to change without prior notice 07 03 Order No E20001 A660 M102 X 7600 Printed in Germany DISPO 18101 21C7977 EGCD 52 3 05 SB 070325 0
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