ep relays high voltage and current cut-off capacity in a compact package 150a 2 form a features ?control of large voltages and currents the relays have a sealed construction that is ?led with a hydrogen gas compound, and use a permanent magnet to establish a magnetic path for the arc. this allows them to switch high-level dc voltages of up to 400v dc. ?compact size and light weight the capsule contact construction is ?led with a gas that has excellent thermal dissipation and insulation characteristics. because of this we have been able to reduce the contact gap to one tenth that of conventional relays, and produce a compact and light design. ?no arc space is required: size including arc space 1/9 (compared to conventional contactors) the arc is not exposed to the outside, therefore, no arc space is not required. ?safety construction the arc is not exposed, therefore, the contactor is explosion proof and intrinsically safe. ?quiet: operation noise 1/4 (compared to conventional contactors). along with the above-mentioned miniaturization, the operation noise has been reduced to 70db, and, in addition, the operation noise remains unchanged when a current of 1000a or more is interrupted. ?high contact reliability the contact part is hermetically sealed, hence the contact resistance remains stable regardless of the ambient conditions. ?mounting direction is not speci?d the weight of the movable parts is light, and also the restoring force is large, hence the contactor is relatively unaffected by gravity. ?line-up of indicator types (150a type only) 1 form a and 1 form b types with indicators for detecting welding of the main contacts are available. ?line-up of pc board type and tm type (10a type only) ?12 and 24v dc coil voltage types are available. ?screw terminal blocks for easy wiring. typical applications ?agv (automatic guided vehicle) (motor control) ?electrical discharge machine (capacitor charge and discharge control) ?inverter control (error cut-off circuit) ?ups (uninterruptible power supplies) ?solar power generation systems (battery control) ?unmanned transport carts ?battery inspection and testing equipment ?welding equipment ?elevator (brake control) 150a 1 form a 60a pc board type tm type ordering information product name contact arrangement contact rating coil voltage indicator contact arrangement ep 1: 1 form a 2: 2 form a 3: 1 form a pc board type (10a type only) 5: 1 form a tm type (10a type only) 1: 10a 5: 150a 6: 60a 12: 12v dc 24: 24v dc 48: 48v dc (10a type only) x0: 100v dc (10a type only) 0: without indicator contact 1: a contact (150a type only) 3: b contact (150a type only) ex. a ep 1 5 0 12 all rights rese r v ed ?c opyright matsushita elect r ic w o r k s , ltd.
ep types and coil data (at 20 & 1ms) 3 & 1ms #2 ) 7.5 & 1ms #2 ) all rights rese r v ed ? c o p y r i gh t matsushita elect r ic w o r k s , ltd.
ep characteristics initial insulation resistance min. 100 m ? ?
ep 150a 2 form a (indicator type) 3.5 .138 27.0 1.063 66.0 2.598 96.0 3.780
ep 150a 1 form a (indicator type) 3.5 27.0 64.0
ep 10a pc board type 1 2 6 5 34.0 1.339 31.3 1.232 31.6 1.244 19.5 .768 (1.0) (.039) 0.5 .020 1.4 .055 3.0 .118 2 dia. .079 dia. 2 dia. .079 dia. 4.5 max. .177 max. 62.4 2.457 55.9 + +
ep 2. max. switching capacity 3-(1) switching life curve (150a, 60a type) 3-(2) switching life curve (10a type) 101 100 1000 1000 100 10 1 contact voltage, v contact current, a 150a type dc, ac 400v resistive load 60a type dc, ac 400v resistive load 10a type dc, ac 400v resistive load contact current, v life (
ep 10. don't exceed maximum coil voltage. exceeding maximum allowable coil voltage on continuous basis will damage the relay and could case failure. 11. ensure that the rated contacts voltage and current values are not exceeded. 12. the rated control capacity and life are given as guides. the contact life is heavily in ? uenced by the type of load and other related conditions, and these factors must be kept in consideration when using the relay. 13. if you are using an inductive load (l load) such that l/r > 1 ms, add surge protection in parallel with the inductive load. if this is not done, the electrical life will decrease and cut-off failure may occur. 14. when using the 150 a type, mount it as far away as possible from wireless transmitters or devices that may generate large surges. to prevent malfunctioning due to high emission levels, it may be neccessary to take measures for e.m.i., such as adding a line noise tlter or an electromagnetic shield. 15. a slight amount of superimposed line noise may be generated in the input line the coil current control. it is recommended to install a line tlter to reduce or eliminate this noise. 16. ensure that the main terminals are clean from oils and other foreign matters. contamination is likely to cause increase in the terminal's temperature. 150a type: nominal cross sectional area: min. 38mm 2 . 60a type: nominal cross sectional area: min. 14mm 2 . 10a tm type: faston terminal for #187 tab terminal, 0.5 mm board thickness (jis c2809-1992 compliant, ? at type connection terminal) harness nominal cross sectional area load input terminal: min. 1.3 mm 2 coil input terminal: min. 0.3 mm 2 17. avoid excessive stress on the terminals. excessive stress can effect the performance of the contact operation. m8 screw terminal (150a main terminal part) terminal pulling up strength ; max.100n per terminal the up-down rotation torque applied to the terminal ; max.15n m 18. use 40n to 70n of force as a guide to fasten the terminal connected to the 10a tm type. please use caution when inserting or removing the terminal as the relay tab terminal may cause injuly. 19. place the pcb mount type (10a pcb type) securely by hand soldering after attaching it. don't submerge assembled board in cleaning solution or water. also, be careful not let ?ux over?ow up from the pcb or adhere to the base of the relay. 20. make sure the power is turned off when wiring. 21. incorrect wiring may cause unexpected malfunction and failure. 22. for ac cut-off, there is no contact polarity. contrm electrical life using actual load. in the case of dc cut-off, please note the contact polarity. 23. lead-free solder (tin, silver and copper) is used as the spare solder for the terminals of the pcb mount type (10a pcb type). for cautions for use, see relay technical information . all rights rese r v ed ? c o p y r i gh t matsushita elect r ic w o r k s , ltd.
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