Thermal overload relays Type TA Class 10
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1 Thermal overload relays Type TA Class Thermal Overload relays Description 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 Class adjustable overload relays are standard with all ABB Line starters Reset can also be adjusted to function as a stop button Screwdriver guide holes All terminal screws are available from the front UL File No: E39 CSA File No: LR933 Trip indication Remote trip and reset option available Single phase and phase unbalance protection Isolated alarm circuit (N.O.) contact Ambient compensation: -5 C to +55 C (-3 o F to +3 o F) anual test anual or automatic reset Factory calibrated and tested Wide adjustment range Tripping classes of the thermal overload relays Standard classes in IEC 97-- are classes: A,, 0, 30. The tripping class indicates according to IEC 97-- the maximum tripping time in seconds under specified conditions of test at 7. times the setting current and specifies tripping and non tripping times for.5 and 7. times the setting current. ostly used class is A. Abstract from IEC 97-- Tripping class A 0 30 ax. tripping time at.5 x setting current (s) 0 70 (warm state) Tripping time at 7. x setting current (s) (cold state) At.05 x setting current no tripping
2 Terminals L, L3, L5 anual test Frame size TA...DU anual or automatic reset Trip indication light Tripping contact (95, 9) Amp setting range Signaling contact, (97, 9) Terminals T, T, T3
3 TA5DU Function of TA5DU TA50DU thermal O/L relays Resetting Relay tripped 95-9 Open Relay not tripped 95-9 Closed 97-9 Closed 97-9 Open Contacts anual Automatic Both manual and automatic Effect of blue Resetting Yes No No button indexed 95-9 Closed when the on R button is pressed (RESET ONLY) No effect No effect 97-9 Open when the button is pressed Effect of blue Resetting Yes No No button indexed 95-9 Closed when the Open when the button is pressed No effect on R/O button is released Closed when the button is released (RESET/OFF) Open when the 97-9 button is pressed No effect {
4 Thermal Overload relays Selection guide TA5DU TA0DU Types TA5DU TADU TA75DU TA0DU ain characteristics Construction 3 pole with ambient temperature variation compensation. Protection against single phase operation. Built in auxiliary contacts: N.O. + N.C. Resetting Convertible: anual to Automatic Setting ranges Number 3 from 0. 0.A 5A 5A 9 A to 3A 9 A 0 0A 0 0A ounted with contactors ounting kit Types of contactors for combined mounting A/AE/AL9 A/AE/AL A/AE/AL No kit is required for mounting thermal O/L relays below contactors A/AE/AL A/AE/AL30 A/AE/AL A/AE30 A/AE A/AE/AF50 A/AE/AF3 A/AE/AF75 A/AE/AF95 A/AE/AF ounted separately (i.e. separate from contactor) Separate mounting kit DB5 DB0 Accessories Tripping coil Resetting coil Terminal shroud Function markers DS5-A DR5-A Terminals protected against direct contact (without the addition of terminal shrouds) BA5-50
5 Selection guide TADU TA50DU Thermal Overload relays Types TADU TA00DU TA50DU ain characteristics Construction 3 pole with ambient temperature variation compensation. Protection against single phase operation. Built in auxiliary contacts: N.O. + N.C. 3 5 R Resetting Convertible: manual to automatic Setting ranges Number 3 from A to A ounted with contactors ounting kit No kit is required for mounting thermal O/L relays See page.7. Types of contactors for combined mounting A/AE/AF95 A/AE/AF A/AF5 A/AF5 A/AF + DT50/A300 A/AF0 + DT50/A300 A/AF300 + DT50/A300 ounted separately (i.e. separate from contactor) Separate mounting kit DB00 No kit required for separate mounting of thermal O/L relays Accessories Tripping coil Resetting coil Terminal shroud LT00 LT50 Function markers BA5-50 Terminals protected against direct contact (without the addition of terminal shrouds)
6 TA5 - TA50 Class for Contactors A9 A/AF300 For Setting range Suffix Catalog List contactor A Code number price TA5DU TADU TA75DU A TA5DU B TA5DU C TA5DU D TA5DU E TA5DU.0.0. F TA5DU..3. G TA5DU..7. H TA5DU. A/AE/AL9 A/AE/AL. 3. J TA5DU3...0 K TA5DU.0 $ L TA5DU TA5DU N TA5DU P TA5DU Q TA5DU 3 9 R TA5DU9 5 S TA5DU5 3 T TA5DU3 5 A TADU5 A/AE30 A/AE 3 B TADU3 7 9 C TADU 5 A TA75DU5 3 B TA75DU3 A/AE/AF50 A/AE/AF75 9 C TA75DU 3 5 D TA75DU5 5 3 E TA75DU3 0 0 F TA75DU0 9 C TA0DU 3 5 D TA0DU5 5 3 E TA0DU3 35 A/AE/AF95 A/AE/AF 0 0 F TA0DU A TADU90 0 B TADU A TA00DU90 0 B TA00DU 5 A/AF5 A/AF C TA00DU35 50 D TA00DU E TA00DU F TA00DU A TA50DU5 A/AF A/AF B TA50DU C TA50DU3 AF0 AF750 See electronic overloads, pages. TA0DU TADU TA50 overloads require mounting kits for installation.
7 Accessories Thermal Overload relays Separate mounting kits For O/L Amps Catalog List relays number price TA5DU 0. 5 DB5/5A $ 30 TA5DU 3 DB5/3A 3 TADU, TA75DU, TA0DU 0 DB0 5 TADU, TA00DU 0 00 DB00 0 DB5/5A Flat pin terminal blocks Catalog List ounting on: number price TA5DU relay LC30-T DB5/5A or DB5/3A LC-B $ Terminal block AWG # cable Catalog List ounting on: number price TA5DU (5A or less) or DB5/5A DX5 $ 5 DB0 LC terminal blocks can be used to convert standard connections into Faston connections: x.3mm or x.mm per pole. The connections are protected against accidental contact. The LC30-T has a terminal block for the 3 power terminals and a second for the auxiliary terminals of a TA5DU thermal O/L relay. The LC-B has two identical terminal blocks each for 3 power terminals. This block allows the power terminals to be mounted with two DB5 kits or a TA5DU thermal O/L relay and DB5 kit assembly. NOTE: According to DIN 9 part and NFC 0- the max. capacity of a Faston connection is 5 A. ounting kit for TA50 overload relay Catalog List For contactor number price DB00 A5 A5 A A300 DT50/A5 DT50/A300 $ 5 LC-B Terminal shrouds for contactors and overload relays Contactor Overload Catalog List relay number price A9 A A A TA5DU Included A30 A TADU Included A50 A75 TA75DU Included A95 A TA0DU TADU Included A5 A5 TA00DU LT5-AY $ A5 A5 Load side of TA00DU LT00A5 50 Terminal lug kits Wire For Catalog List range overloads number price 50C TADU, TA00DU EHTK $ 90 0C TA50DU5 ATK300HK 7 () 500C TA50DU3 ATK300/HK
8 U voltage at 50/0 Hz Catalog List number price DS5-A remote tripping coil DS5-A remote resetting coil V DS5-A- V DS5-A- V DS5-A- 0/30V DS5-A-0/30 500V DS5-A-500 V DR5-A- V DR5-A- V DR5-A- 0/30V DR5-A-0/30 500V DR5-A-500 $ 0 L STOP START 3 A A 95 9 L/N L STOP START 3 A A 95 9 L/N 3 3 OVERLOAD TRIP OVERLOAD RESET L OFF HAND AUTO 3 A A E E TRIPPING COIL L/N OFF L HAND AUTO A 97 9 A E E RESETTING COIL 95 9 L/N 3 3 OVERLOAD TRIP OVERLOAD RESET E E TRIPPING COIL 97 9 E E RESETTING COIL
9 Intermittent duty (ops/h) ta=0.5s Switching frequency ta = s ta =.5s ta = 3s ta=3.5s (%) Closing time [s] Tripping limits at ambient temperatures varying by + 0 C 0 Tripping time ultiple of the setting current ultiple of the setting current Ambient temperature compensation limits according to IEC 97-- No tripping Tripping Ambient temperature
10 Types TA5DU TADU TA75DU TA0DU Standards: (international, European) IEC 97--, EN Rated insulation voltage U i V 90 according to IEC 97-- Rated impulse withstand voltage U imp kv according to IEC 97-- Permissible ambient temperature for storage C to +70 for operation C 5 to +55 with temperature compensation (maximum values: see page.9) Climatic withstand DIN 5007 Humidity in alternate climate KFW, 30 cycles ounting positions On a support at an angle of ±30 in relation to the vertical plane (standard position). Other positions possible except mounting on a horizontal plane (in this case the tripping mechanism would be located above the bimetals). Shock withstand shock duration ms 5 at nominal I e Critical direction of shocks A, A multiples of g Resistance to vibrations (± mm, 50 Hz) multiples of g ounting on contactor Latching below the contactor, screw fixing on main terminals separate with DB - kit Using screws: x or 35 mm EN 500 Terminals and cross-sectional areas TA5DU setting ranges: for main conductors (motor side) from 0.-0.A -3 A screw terminal to -5A with cable clamp via tunnel connector 5 flat type for lug or bar conductor cross-sectional area rigid solid or rigid stranded mm x.5 - x x.5-35 or x.5 x flexible with cable end mm x.5 - x x.5-5 or x.5 x recommended bars mm Terminals and cross-sectional area for auxiliary conductors screw terminal (screw size) with cable clamp 3.5 conductor cross-sectional area rigid solid or rigid stranded x mm flexible with cable end x mm Degree of protection All the terminals are protected against direct contact according to All the terminals are VDE 0/Part. 0. (without additional terminal shrouds) protected against direct A A direct contact according to VDE0/part 0 (with additional terminal shrouds for the main terminals Pole Technical Characteristics Types TA5 TA TA75 TA0 TA TA00 TA50 DU DU DU DU DU DU DU Number of poles 3 Setting ranges see page. Tripping class according to IEC 97--, EN 097- A Rated operational frequencies Hz /0 ax. switching frequency Up to 5 starts/h or 0 starts/h with % on-load factor when neither without untimely tripping the starting current of x I n nor the starting time s are exceeded. Resistance per phase in mω and heat dissipation in W see page.3
11 Types TADU TA00DU TA50DU Standards: (international, European) IEC 97--, EN Rated insulation voltage U i V according to IEC 97-- Rated impulse withstand voltage U imp kv according to IEC 97-- Permissible ambient temperature for storage C to +70 for operation C 5 to +55 with temperature compensation (maximum values: see page.9) Climatic withstand DIN 5007 Humidity in alternate climate KFW, 30 cycles ounting positions On a support at an angle of ±30 in relation to the vertical plane (standard position). Other positions possible except mounting on a horizontal plane (in this case the tripping mechanism would be located above the bimetals). Shock withstand shock duration ms 5 at nominal I e Critical direction of shocks A, A multiples of g Resistance to vibrations (± mm, 50 Hz) multiples of g ounting on contactor separate with DB - kit x 5 screws Terminals and cross-sectional areas for main conductors (motor side) screw terminal with cable clamp via tunnel connector HC, flat type for lug or bar conductor cross-sectional area rigid solid or rigid stranded mm 35 5 x flexible with cable end mm x recommended bars mm x 3 0 x 0 x...5 Terminals and cross-sectional area for auxiliary conductors screw terminal (screw size) with cable clamp 3.5 conductor cross-sectional area rigid solid or rigid stranded x mm flexible with cable end x mm Degree of protection All the terminals are protected against direct contact according to VDE 0/Part. 0. (with additional terminal shrouds) A A Technical characteristics of auxiliary contacts for thermal O/L relays: TA5DU to TA50DU Auxiliary contacts normally closed N.C. normally open N.O. Terminal marking Rated operational voltage Ue VAC Conventional thermal current (in free air) I th A Rated operational current I e, AC-5 up to V A up to V A up to 500 V A Rated operational current Ie DC-3 up to 50 V A Protection against short circuits gg (gl) fuses (according to IEC 9) A S 7/S circuit-breaker A k3 k aximum potential difference VAC between N.C. and N.O. auxiliary contacts VDC
12 otor Protection general It is very important to choose an adequate protective device for the safety of the motor during operation and for its durability. The efficiency of protection methods varies according to the application. The overview below will help you to choose. There is no general rule and we are available to advise you for special applications and especially in the case of difficult starting. Protective devices and efficiency Protection in relation to current: Protection in relation to temperature: Fuses Protective relay with otor protection otor protection phase fault protection via CUSTORAPID via SPE electronic thermistor relay SPE 3~ 3~ 3~ 3~ Causes of dangerous overloads for the motor windings Overload with current. times the nominal current S-S nominal duties according to IEC 3-I 3 Operation with starting, braking, reversal in operating direction Operation with starting rate at > 5 cycles/hour 5 Locked rotor for motors with special rotor Overloads due to phase failure 7 Network undervoltage or overvoltage Fluctuation of network frequency 9 Ambient temperature too high Overheating due to external cause (i.e. overheating of bearings) otor cooling disturbed Undercurrent protection on drop in load 3 Protection of asymmetry: wrong phase direction rotation or asymmetrical load Earth fault protection 5 Automatic disconnection for auxiliary load fault
13 Technical data Resistance and Joule losses per phase Short circuit protection Thermal Overload relays Resistance and Joule losses per phase, short circuit protection Joule losses Setting range Resistance per phase at current per phase max. setting from to A A mω W TA5DU TADU TA75DU TA0DU Joule losses Setting range Resistance per phase at current per phase max. setting from to A A mω W TADU TA00DU TA50DU
14 Thermal Overload relays Technical data Tripping curves TA5DU TA75DU TADU/SU TA50DU TA-DU thermal O/L relays are 3-pole with manual or automatic resetting mode selection. The resetting button can also be used for stopping. Built-in auxiliary contacts are physically separate and, consequently, can be used in different circuits (control circuit/indication circuit). Each relay is temperature compensated and ensures phase failure protection. Protective relays up to size TA75DU are protected against direct contact via the front face. Terminal shrouds are available for TA00DU to TA50DU size relays. The connecting terminals are delivered in open position with (+,-) pozidriv screws and screwdriver guidance. It is advisable to tighten unused terminal screws. Thermal O/L relay tripping curves TA5DU TADU, TA75DU and TA0DU TADU (tripping class A) (tripping class A) (tripping class A) Tripping time inutes from cold state Phases Tripping time inutes from cold state Phases 3 Phases Tripping time inutes from cold state Phases 3 Phases Seconds 0 Phases 3 Phases 3 Phases Seconds 0 Phases 3 Phases Seconds 0 3 Phases Phases from warm state from warm state from warm state Tripping current in multiples of the setting current Tripping current in multiples of the setting current Tripping current in multiples of the setting current TA00DU TA50DU (tripping class A) (tripping class A) Tripping time inutes from cold state Phases 3 Phases Triping time minutes from cold state Phase 3 Phase 0 0 Seconds Phases 3 Phases seconds Phase 3 Phase from warm state from warm state Tripping current in multiples of the setting current Tripping current as multiple of setting current
15 Inches [illimeters] TA5DU3 only
16 Thermal Overload relays TA75DU Approximate dimensions TA75DU TA00DU Inches [illimeters] TA0DU TOUCH SAFE COVER tg. Slots TADU TOUCH SAFE COVER HES TA00DU
17 Inches [illimeters] DIA. 5.0 DIA
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