--- title: Littelfuse SSAC - High Current Solid State Time Delay Relays description: Find more about Littelfuse SSAC electronic timers, relays and controls for original equipment manufacturers, for process control and automation. --- [![Littelfuse - Expertise Applied - Answers Delivered](https://info.littelfuse.com/hs-fs/hubfs/Littelfuse%20Logo.png?width=201&height=47&name=Littelfuse%20Logo.png "Littelfuse - Expertise Applied - Answers Delivered")](https://www.littelfuse.com) **High-Current Solid State** **Time Delay Relays** Our high current solid state timers combine accurate timing circuitry with the high current switching capability of a solid state relay. With continuous output ratings of 6A, 10A, and 20A available, they can control motors, heaters, and other high current loads directly, without the need for a contactor. They offer 100x the life of a relay output timer and are fully encapsulated to protect against shock, vibration, and humidity. **[» Back to Main Page](https://info.littelfuse.com/time-delay-relays?hsLang=en-us)** ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/real-highcurrent-header2.jpg?width=472&height=361&name=real-highcurrent-header2.jpg) --- ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/PTHF-thumb.jpg?width=202&height=124&name=PTHF-thumb.jpg) ## PTHF The PTHF Series can be used for a variety of applications from chemical metering, to temperature regulating, to energy management. 从 1% 到 99% 的无限可调性可在广泛的工厂固定周期内提供准确的控制百分比。当安装在金属表面上时，它可用于驱动螺线管、接触器、继电器或灯，稳定电流高达20A，突入电流高达200A。 PTHF is the suggested replacement for the PT Series. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_pthf_datasheet.pdf) [Datasheet](https://cdn1-originals.webdamdb.com/12956_117181217?cache=1612538800&response-content-disposition=inline;filename=PTHF_Datasheet.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMjE3P2NhY2hlPTE2MTI1Mzg4MDAmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9UFRIRl9EYXRhc2hlZXQucGRmJnJlc3BvbnNlLWNvbnRlbnQtdHlwZT1hcHBsaWNhdGlvbi9wZGYiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjIxNDc0MTQ0MDB9fX1dfQ__&Signature=PXWPu-iRwFr6uaKoYNPNKiNBasdCFYFWBzxAvFxuhI8y~163noguHvzFO6JXF3U2bSB6C0TacK-k7mOR7lHZUrvyE1hAqABjQq93V9jvt4wYxtBTcN8wUK7H3T76wuhTPbrvfWEZ5uUVbpA90rW1OCSq91~a9e31loUqMbTiwITiwsxaK5TNbogtnp6n9B~kAYNF3XnYfuSSAZlBvIvVpKbJyodV6kctgx6CbsVMjVYmcJJxH7r5o29EAsV-phWfwp3nAIhCIIR0TRKDELzgQtsvFjI1dfCvIn6iNxt6F086zsJ-1oRQzshSmfFj4uY2ceipXPVG3fDSV2NA2vdoOg__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | | | | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/TH1-thumb.jpg?width=202&height=124&name=TH1-thumb.jpg) ## TH1 The TH1 Series is a solid-state relay and timer combined into one compact, easy-to-use control. 这种高度可靠的器件消除了对独立固态继电器的需求。 When mounted to a metal surface, it can switch load currents up to 20A steady state, and 200A inrush. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_th1_datasheet.pdf) [Datasheet](https://cdn1-originals.webdamdb.com/12956_117181234?cache=1612538788&response-content-disposition=inline;filename=TH1_Datasheet.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMjM0P2NhY2hlPTE2MTI1Mzg3ODgmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9VEgxX0RhdGFzaGVldC5wZGYmcmVzcG9uc2UtY29udGVudC10eXBlPWFwcGxpY2F0aW9uL3BkZiIsIkNvbmRpdGlvbiI6eyJEYXRlTGVzc1RoYW4iOnsiQVdTOkVwb2NoVGltZSI6MjE0NzQxNDQwMH19fV19&Signature=ZGhqqGWKB~rYdbco-eDjS0CXo3VeJRIhGSLzWUDZUiqIR5~tVD7BS0N4viErW2EhXLRIolRvFOO-gP4NcpoMIARVgLVHK6m8wjDt-tgPbrRMMV-oYhZoWiUXrp0457e~~xj0XCror368bYZukVDqZKJL3UTpDm7K-frYYkbnl1bTZzb1yntqG43D1OIJGwZZ2d0C7zw3Y~wShGa~2DYxq0ZLyXHp2LbxFQSxCWVY7-3lkIA88FsfA-qzWYuFviGcK8fecGkUps15sBd2WbV4DvtPwwvEGksph684ISjeP8e8SlAzPd0JQOZebim72-FAG9NYWc4mbovekK2sfve9Zg__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | | | | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THC-thumb.jpg?width=202&height=124&name=THC-thumb.jpg) ## THC The TH series is a solid-state relay and timer combined into one compact, easy-to-use control. 当安装在金属表面时， TH 系列可用于直接控制灯或加热器负载，稳定电流高达 20A ，浪涌电流高达 200A 。其单次注射功能可以执行点胶和脉冲整形作。启动开关可以是瞬时开关，也可以是维持开关类型。时间延迟可以在 0.1 - 600 秒的 4 个范围内进行选择。 The THC Series is used for coin vending applications where fast initiate response is required. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thc_ths_datasheet.pdf) [Datasheet](https://cdn1-originals.webdamdb.com/12956_117181234?cache=1612538788&response-content-disposition=inline;filename=TH1_Datasheet.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMjM0P2NhY2hlPTE2MTI1Mzg3ODgmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9VEgxX0RhdGFzaGVldC5wZGYmcmVzcG9uc2UtY29udGVudC10eXBlPWFwcGxpY2F0aW9uL3BkZiIsIkNvbmRpdGlvbiI6eyJEYXRlTGVzc1RoYW4iOnsiQVdTOkVwb2NoVGltZSI6MjE0NzQxNDQwMH19fV19&Signature=ZGhqqGWKB~rYdbco-eDjS0CXo3VeJRIhGSLzWUDZUiqIR5~tVD7BS0N4viErW2EhXLRIolRvFOO-gP4NcpoMIARVgLVHK6m8wjDt-tgPbrRMMV-oYhZoWiUXrp0457e~~xj0XCror368bYZukVDqZKJL3UTpDm7K-frYYkbnl1bTZzb1yntqG43D1OIJGwZZ2d0C7zw3Y~wShGa~2DYxq0ZLyXHp2LbxFQSxCWVY7-3lkIA88FsfA-qzWYuFviGcK8fecGkUps15sBd2WbV4DvtPwwvEGksph684ISjeP8e8SlAzPd0JQOZebim72-FAG9NYWc4mbovekK2sfve9Zg__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | | | | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THD1-thumb.jpg?width=202&height=124&name=THD1-thumb.jpg) ## THD1 The THD1 Series combines accurate timing circuitry with high power solid-state switching. 它可以在没有接触器的情况下直接切换电机、灯和加热器。 You can reduce labor, component cost, and increase reliability with these small, easy-to-use, Digi-Power timers. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thd1_datasheet.pdf) [Datasheet](https://cdn1-originals.webdamdb.com/12956_117181236?cache=1612538797&response-content-disposition=inline;filename=THD1_Datasheet.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMjM2P2NhY2hlPTE2MTI1Mzg3OTcmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9VEhEMV9EYXRhc2hlZXQucGRmJnJlc3BvbnNlLWNvbnRlbnQtdHlwZT1hcHBsaWNhdGlvbi9wZGYiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjIxNDc0MTQ0MDB9fX1dfQ__&Signature=NBNuBfPZ7GE2jeHiLDtHv1G2QPJtXfCBTMKvSqbYyq1lkz8Go~kuF7MMHAQTPSXLqs8DRbZ1TvH7a014ST1VTYEfiLh8OCcXF3394Kwjk~tOrCkEOu22BfOVaSpK-WYVdfsrYrcdXiXpKGCrnoA7WlDV0HbXsfkiQ0fmWirW689Cfv4bDza4UhemQKCbG3B~Fie-Uvm5dlwyPpv3uAIjJ~-5KVKGDc9Kgq3KDzBPpj0to~AL7xm9QJfy8LR0oTHWZeZtfz3QM7DxbC4yqzO1A52zscKP3gBTmRjbepSU-zc0zsAqmvwI671wc4LTyYvFkQeoVkVGUivJk6vrU5adJw__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | | | | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THD2-thumb.jpg?width=202&height=124&name=THD2-thumb.jpg) ## THD2 The THD2 Series combines accurate timing circuitry with high power solid-state switching. 它可以在没有接触器的情况下直接切换电机、灯和加热器。 You can reduce labor, component cost, and increase reliability with these small, easy-to-use, Digi-Power timers. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/Protection-Relays/Datasheets/Time-Delay-Relays/Littelfuse_TimeDelayRelays_THD2_Datasheet.pdf) [Datasheet](https://cdn1-originals.webdamdb.com/12956_117181235?cache=1612538797&response-content-disposition=inline;filename=THD2_Datasheet.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMjM1P2NhY2hlPTE2MTI1Mzg3OTcmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9VEhEMl9EYXRhc2hlZXQucGRmJnJlc3BvbnNlLWNvbnRlbnQtdHlwZT1hcHBsaWNhdGlvbi9wZGYiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjIxNDc0MTQ0MDB9fX1dfQ__&Signature=DCaKhSE8cqT2dgzfQyGWnsJscgLjb6C3U82jII~9UBAL23KBhq2k-dNRK8CcuTZL-76c5CxxbaToLCWxQZuO9cSpmsG5dC0R09B-hqekMwNNSe~L9AMT8n7ToFsE8wTvO9GzoT5KP3Wjrkn6MaYwDScO8r-~67tQUQhL~IbEFcL6v1K4GKudYDRvQ92L4zJFoT723lfO6sQbvr9js05K4hb-Gd46qGIAOb-TAy-Hf4SM89FkpwbG8qkhbyquZL359dCz-CUpYajasjZRS~SIrC4H~NGPtbXcuhcB6GRKSJWy~Kxa1meFveMG4F6WXBq0lwUqLlQDUR1ObMsp-0TPKw__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | | | | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THD2-thumb.jpg?width=202&height=124&name=THD2-thumb.jpg) ## THD3 The THD Series combines accurate timing circuitry with high power, solid-state switching. 它可以在没有接触器的情况下直接切换电机、灯和加热器。THD3具有相等的开断时间延迟。 A single Rτ sets both time delays. You can reduce labor, component cost, and increase reliability with these small, easy-to-use, Digi-Power timers. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thd3_datasheet.pdf) [Datasheet](https://cdn1-originals.webdamdb.com/12956_117181237?cache=1612538793&response-content-disposition=inline;filename=THD3_Datasheet.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMjM3P2NhY2hlPTE2MTI1Mzg3OTMmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9VEhEM19EYXRhc2hlZXQucGRmJnJlc3BvbnNlLWNvbnRlbnQtdHlwZT1hcHBsaWNhdGlvbi9wZGYiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjIxNDc0MTQ0MDB9fX1dfQ__&Signature=dPzKVUkRnUcIcMEDtQ10bGqJFBbtM1sGbZHoMSOzZr5SUz32xScDaWGf-Cpwt32uCRWZ7kCmZiTkUBom18xoMjjeWb~F8uC3rB0h2CLlROaRBUYUapzZKAQIKQ~UaValHlgqAyTHNfYBsLhV-a8x6-XtPPnp6MmgRfDq8PR1H7I9bqIsiVc5~5c4rowlWAttPyYKV1pWwdOrlbmiyLkxM~X~OtjJDHARUb4lrxr1ddLn5IQlHax3CbG1laoSwXM2O33AZnfA1UbSsyScM-Gw~DGiGFplpbX21HXIwmOPe0GvmvsNPOQWhJM77COvMNRhskxhsaKvGh3zydJDXo3QdA__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | | | | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THD7-thumb.jpg?width=202&height=124&name=THD7-thumb.jpg) ## THD7 The THD7 utilizes only two terminals connected in series with the load. Interval timing mode is achieved by using a small portion of the AC sine wave allowing sufficient voltage for circuit operation. The THD7 can be used for interval or delay-on-break timing. It is designed to operate large loads directly, such as motors, heater elements, and motor starters. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thd7_datasheet.pdf) [Datasheet](https://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thd7_datasheet.pdf) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | | | | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THDB-thumb.jpg?width=202&height=124&name=THDB-thumb.jpg) ## THDB The THDB Series combines accurate timing circuitry with high power, solid-state switching. 它可以在没有接触器的情况下直接切换电机、灯和加热器。 You can reduce labor, component cost, and increase reliability with these small, easy-to-use, Digi-Power timers. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thdb_datasheet.pdf) [Datasheet](https://cdn1-originals.webdamdb.com/12956_117181239?cache=1612538795&response-content-disposition=inline;filename=THDB_Datasheet.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMjM5P2NhY2hlPTE2MTI1Mzg3OTUmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9VEhEQl9EYXRhc2hlZXQucGRmJnJlc3BvbnNlLWNvbnRlbnQtdHlwZT1hcHBsaWNhdGlvbi9wZGYiLCJDb25kaXRpb24iOnsiRGF0ZUxlc3NUaGFuIjp7IkFXUzpFcG9jaFRpbWUiOjIxNDc0MTQ0MDB9fX1dfQ__&Signature=htrBAT2bCgh~NCFx2bo6vUMhaHtQzEXu8zBPjemu5o4frzE~qh0np2QdEo8lOytZFMXpgcgCU8rcivxpu3lgg26Wq4h1sOE7KOcnfL5Y-4nQm-LLPAa7Sh3Tds9BkazFCO7uAVPeP4TdMzjvGyB-i~Ti50zRgBC8BjkUvIzSR6liJtaQLQ47q4eYibHDBm6DesNojIE9oMQEpWrMTn8rrcFvblDieXsa2C0XIO1D4i3dlOUYofjdcAa8IrZZT5yFSa-GL42-XLhVLDvBpAZnqosUXuoRN6qnqTvpOn21jiMWTMGPYIEE9~JzYDwzo571nrEyqv86k7gSIj6~P1Igng__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THDS-thumb.jpg?width=202&height=124&name=THDS-thumb.jpg) ## THDS The THDS Series combines accurate timing circuitry with high power solid-state switching. 它可以在没有接触器的情况下直接切换电机、灯和加热器。 You can reduce labor, component cost, and increase reliability with these small, easy-to-use, Digi-Power timers. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thds_datasheet.pdf) [ Datasheet](https://cdn1-originals.webdamdb.com/12956_117181151?cache=1612538785&response-content-disposition=inline;filename=Accessories_LiquidLevelControl.pdf&response-content-type=application/pdf&Policy=eyJTdGF0ZW1lbnQiOlt7IlJlc291cmNlIjoiaHR0cCo6Ly9jZG4xLW9yaWdpbmFscy53ZWJkYW1kYi5jb20vMTI5NTZfMTE3MTgxMTUxP2NhY2hlPTE2MTI1Mzg3ODUmcmVzcG9uc2UtY29udGVudC1kaXNwb3NpdGlvbj1pbmxpbmU7ZmlsZW5hbWU9QWNjZXNzb3JpZXNfTGlxdWlkTGV2ZWxDb250cm9sLnBkZiZyZXNwb25zZS1jb250ZW50LXR5cGU9YXBwbGljYXRpb24vcGRmIiwiQ29uZGl0aW9uIjp7IkRhdGVMZXNzVGhhbiI6eyJBV1M6RXBvY2hUaW1lIjoyMTQ3NDE0NDAwfX19XX0_&Signature=DWo6P7vsv-IwFzCUv4QKmQSVEI6iEM6Zr~XujWQhzMWnCdGXtC8uajWcKl713E38xitMga0-MOzCnbhlrMxJTURKHCjCgeasWG6Fgx5DE1JpL0-T~z1wEpd6d6IzsaEY35rlpp2OgDhfdpX56T3jAhlUZH29Ntd~f8ChSHT6lNWWC1132T2U8fZ3tWiEb6Fo6XVBNlPM~RilRz2z~idLOSLxogbLoEm~so~5kraOPQVlMBiYXEA7C4aopasmjSp7ekydvjGW2ob4ljYDQ85sT5NmwaTbIuAN~P5e7li7vpu1tMTI5B5uJJ5xm~HP4wYHnAtwRhTB5XXO3I-u9tM2eQ__&Key-Pair-Id=APKAI2ASI2IOLRFF2RHA) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | ## ![](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Thumbnails/THS-thumb.jpg?width=202&height=124&name=THS-thumb.jpg) ## THS The TH series is a solid-state relay and timer combined into one compact, easy-to-use control. 当安装在金属表面时， TH 系列可用于直接控制灯或加热器负载，稳定电流高达 20A ，浪涌电流高达 200A 。其单次注射功能可以执行点胶和脉冲整形作。启动开关可以是瞬时开关，也可以是维持开关类型。时间延迟可以在 0.1 - 600 秒的 4 个范围内进行选择。 The THC Series is used for coin vending applications where fast initiate response is required. | [![52ff0e80b07d28b590bbc4b30befde52](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/52ff0e80b07d28b590bbc4b30befde52.png?width=19&name=52ff0e80b07d28b590bbc4b30befde52.png)](http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thc_ths_datasheet.pdf) <http://www.littelfuse.com/~/media/protection-relays/datasheets/time-delay-relays/littelfuse_timedelayrelays_thc_ths_datasheet.pdf>[Datasheet](http://ssac.com/files/downloads/30/THC-THS.pdf) | [![open_in_new_window](https://info.littelfuse.com/hs-fs/hubfs/Electrical/Protection-Relays/landing-pages/open_in_new_window.png?width=23&name=open_in_new_window.png)](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) [Dimensional Drawing](https://info.littelfuse.com/hubfs/Electrical/Protection-Relays/landing-pages/Timer-Functions/figure-4.jpg?hsLang=en-us) | | --- | --- | #### To be contacted with more information, please fill out the form below. 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