Tripping Class 20 - ABB

1 Thermal Overload RelaysTripping Class 20 NewMotor Protection generalIt is very important to choose an adequate protective device for the safety of the motor during operation and for its efficiency of protection methods varies according to the ap-plication. The overview below will help you to is no general rule and we are available to advise you for special applications and especially in the case of difficult start-ing. An economic and effective protection are thermal overload relays with protection against: > Overload > Phase failure imbalance > Phase lossDescription Available for starter construction with A Line contactors and separate panel mounting Designed for close couple mounting separate base mounting available for all overload relays Full automatic function, Manual reset, Test phase or Reset can also be adjusted to function as a stop button Remote trip and reset option available Screwdriver guide holes, all terminal screws are available from the front trip indication Ambient compensation -25 C to +55 C (-13 F to +131 F) Tripping classes of the thermal overload relaysStandard Tripping classes are 10 A, 10, 20, 30.

2 The Tripping Class indicates according to IEC 60947-4-1 the maximum Tripping time in seconds under specified conditions of test at times the setting current and specifics Tripping and non trip -ping times for and times the setting and function GeneralThermal O/L relays and their accessories meet UL, NEMA, CSA and most other important international standards (IEC), European standards (EN) and the most important national standards. They meet the certification and approval directives required through-out the overload relays are 3 pole. The motor current flows through their bimetals (1 per phase) which are indirectly heated. Under the effect of the heating, the bimetals bend, cause the relay to trip and the position of the auxiliary contacts to relay setting range is graduated in amps.

3 In compliance with international and national standards, the setting current is the motor nominal current and not the Tripping current (no Tripping at x setting current, Tripping at x setting current). The Tripping curves (cold or warm starting, 3 phases and 2 phases) are shown in the main relays are built to be self protecting in the event of an over-load until the short circuit protection device is blue buttonContactsRelay trippedRelay not trippedManualAutomaticManualAutomaticNC 95-96NO 97-98openclosedopenclosedclosedopenclose dopenButton RNC 95-96NO 97-98 Reset closes when Button s pressedopens when Button s pressed Button R/ONC 95-96NO 97-98 Reset closes when Button s releasedopens when Button s pressed opens when Button s pressedcloses when Button s released opens when Button s pressedcloses when Button s released Function of the thermal overload relaysTerminals L1, L3, L5 Manual testManual or automatic resetTrip indication lightTripping contact (95,96)

4 Terminals T1, T2, T3 Frame sizeTA .. DUAmp setting rangeSignaling contact (97, 98)Reset button TimeIe (adjusted current)No Tripping at IeTripping at Ie within 2 hoursClass 10 4 - 10 IeClass 20 6 - 20 secClass 30 9 - 30 secTA25DU trip Class 20 for contactors A9 .. A40 and (T) AL9 .. (T) .. $ .. 11451TA25DU14-201 SAZ211401R104510 .. 14601TA25DU19-201 SAZ211401R104713 .. 19601TA25DU25-201 SAZ211401R105118 .. 25701TA25DU32-20 (1)1 SAZ211401R105324 .. 32 (1)1001 (1) with terminal block DX25: 1x16mm2TA42DU trip Class 20 for contactors A30, A40 and (T) AL30, (T) AL40TA42DU25-201 SAZ311401R100118 .. 25801$ 78TA42DU32-201 SAZ311401R100222 ..321001TA42DU42-201 SAZ311401R100329 .. 421501TA75DU trip Class 20 for contactors A50.

5 A75 and AE50 .. AE75TA75DU25-201 SAZ321401R100118 .. 25801$ 102TA75DU32-201 SAZ321401R100222 .. 321001TA75DU42-201 SAZ321401R100329 .. 421501TA75DU52-201 SAZ321401R100436 .. 521751TA75DU63-201 SAZ321401R100545 .. 632001TA75DU80-201 SAZ321401R100660 .. 802501TA80DU trip Class 20 for contactors A95, A110, AE 95 and AE110TA80DU42-201 SAZ331401R100329 .. 421501$ 135TA80DU52-201 SAZ331401R100436 .. 521751TA80DU63-201 SAZ331401R100545 .. 632001TA80DU80-201 SAZ331401R100660 .. 802501 Ordering DetailsTypeOrder codeSetting rangeA .. AULFuse/600V/K5 APackingunit pieceListPriceThermal Overload Relays with trip Class 20 Ordering data for the "New additional Assortment"TA25 DUTA42 DUTA75 DUTA80 DUType 1 co-ordination according to IEC 60947-4-1: Under short-circuit conditions, the starter shall cause no danger to persons or installation and may not be suitable for further service without repair and replacement of 2 co-ordination according to IEC 60947-4-1: Under short-circuit conditions, the contactor or starter shall cause no danger to persons or installation and shall be suitable for further use.

6 The risk of contact welding is recognized, in which case the manu-facturer shall indicate the measures to be taken as regards the maintenance of the equipmentStandard technical data, operating data and dimensions see Main CatalogThermal Overload Relays with trip Class 20 Resistances and power losses per phaseShort-circuit protectionThermal overload relay TA25DU trip Class .. 11404045 .. 14505060 .. 19636360 .. 25808070 .. 32100100100 overload relay TA42DU trip Class 2018 .. overload relay TA75DU trip Class 2018 .. 80250250250125 overload relay TA80DU trip Class 2029 .. rangefrom .. toA AShort-circuit protection (fuses)ULFuse/600VK5 AUL600 VCBAR esistance per phasemOhmPower lossper phaseat uppercurrent settingWType 2 co-ordinationgL/gGAType 1 co-ordinationgL/gGAThermal Overload Relays with trip Class 20 Technical dataShort-circuit ratings.

7 -6 -6 .. -10 -10 .. -10 -10 .. -15 -15 .. -20 -20 .. -25 -25 .. -35 -35 .. 1145 -45 -45 -TA25DU-14-2010 .. 1460 -60 -60 -TA25DU-19-2013 .. 1960 -60 -60 -TA25DU-25-2018 .. 2570 -70 -70 -TA25DU-32-2024 .. 32100 -100 -100 -TA42 DUTA42DU-25-2018 .. 25808080-150 -TA42DU-32-2022 ..3210080100-150 -TA42DU-42-2029 .. 4215080150-200 -TA75 DUTA75DU-25-2018 .. 25808080-150 -TA75DU-32-2022 .. 3210080100-150 -TA75DU-42-2029 .. 4215080150-200 -TA75DU-52-2036 .. 52175125175-250 -TA75DU-63-2045 .. 63200125200-250 -TA75DU-80-2060 .. 80250125250-250 -TA80 DUTA80DU-42-2029 .. 4215080150-150 -TA80DU-52-2036 .. 52175125175-175 -TA80DU-63-2045 .. 63200125200-250 -TA80DU-80-2060 .. 80250150250-250 -Voltage480 VTypeSetting rangeA.

8 A5 kA10 kA18 kAFuse K5 CBFuse K5 CBFuse .. -6 -6 .. -10 -10 .. -10 -10 .. -15 -15 .. -20 -20 .. -25 -25 .. -35 -35 .. 1145 -45 -45 -TA25DU-14-2010 .. 1460 -60 -60 -TA25DU-19-2013 .. 1960 -60 -60 -TA25DU-25-2018 .. 2570 -70 -70 -TA25DU-32-2024 .. 32100 -100 -100 -TA42 DUTA42DU-25-2018 .. 25808080-150 -TA42DU-32-2022 ..3210080100-150 -TA42DU-42-2029 .. 4215080150-200 -TA75 DUTA75DU-25-2018 .. 25808080-150 -TA75DU-32-2022 .. 3210080100-150 -TA75DU-42-2029 .. 4215080150-150 -TA75DU-52-2036 .. 52175125175-175 -TA75DU-63-2045 .. 63200125200-250 -TA75DU-80-2060 .. 80250125250-250 -TA80 DUTA80DU-42-2029 .. 4215080150-150 -TA80DU-52-2036 .. 52175125175-175 -TA80DU-63-2045 .. 63200125200-250 -TA80DU-80-2060 .. 80250150250-250 -Voltage600 VTypeSetting rangeA.

9 A5 kA10 kA18 kAFuse K5 CBFuse K5 CBFuse K5 CBTripping times of thermal overload relays as a function of a multiple of the setting current from cold state (tolerance +/- 20% of the Tripping time).Thermal Overload Relays with trip Class 20 Table for Tripping timeThermal overload relays TA25DU trip Class .. 119824 .. overload relays TA42DU, TA75DU, TA80DU trip Class 2018 .. rangeTripping times of thermal overload relays:at multiple of setting .. to A ATripping times in secABB Hatton RoadWichita Falls, TX 76302 Telephone 888-385-1221; 940-397-7000 Fax 940-397-7085 LV043No. 1 SXU 106 043 B0201 Printed in USA, November, 2005 ABB , DeschampsLachine, QC H8T 3E4 CanadaTelephone: 800-567-0283 (Quebec) 866-460-3300 (Ontario) 866-222-8368 (Calgary) 604-777-5477 (British Columbia)