{"product_id":"honeywell-fs-tsdi-1624c-24v-safety-input-fta","title":"Honeywell FS-TSDI-1624C 24V Safety Input FTA","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong style=\"color: #0056b3;\"\u003eFS-TSDI-1624C\u003c\/strong\u003e is a high-reliability Field Termination Assembly (FTA) module designed to interface between field wiring and the Honeywell Safety Manager system. This module provides 16 current-limited digital input channels specifically approved for routing non-incendive field circuits into Class I, Division 2 hazardous locations. \u003c\/p\u003e\n\u003ch2\u003eCore Technical Advantages\u003c\/h2\u003e\n\u003ch3\u003eClass I, Division 2 Hazardous Location Safety\u003c\/h3\u003e\n\u003cp\u003eEngineered with precise energy-limiting circuitry, this module restricts igniting current to less than 100 mA per channel under worst-case voltage conditions. This design allows direct interfacing with field devices located in explosive gas atmospheres without the need for additional bulky intrinsic safety barriers.\u003c\/p\u003e\n\u003ch3\u003eDual-Group Fuse Protection\u003c\/h3\u003e\n\u003cp\u003eThe 16 channels are divided into two isolated groups of 8. Each group features a high-voltage rated 250 mA SOC SHV12 ceramic fuse on the common positive line, preventing field-side short circuits from disabling the entire module and isolating faults effectively.\u003c\/p\u003e\n\u003ch3\u003eRedundant Module Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe hardware architecture natively accepts dual connection paths, allowing a single FTA block to drive a redundant pair of safety input cards simultaneously. This architecture eliminates single points of failure between the field termination and the safety logic layer.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #f2f2f2; border-bottom: 2px solid #ddd;\"\u003e\n\u003cth style=\"padding: 10px; text-align: left; border: 1px solid #ddd;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"padding: 10px; text-align: left; border: 1px solid #ddd;\"\u003eSpecification Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eHoneywell (Safety Manager)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eModel Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003eFS-TSDI-1624C \/ FC-TSDI-1624C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eChannel Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e16 Channels (2 Groups of 8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eNominal Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e24 V DC (-15% to +30%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eInput Current Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e≤ 15 mA at 24 V DC (with Redundant Load)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eIgniting Current Limit\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u0026lt; 100 mA at 24 V DC +30% (per channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eFuse Rating \/ Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e250 mA, 400 V AC\/DC (SOC SHV12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions (L × W × H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #ddd;\"\u003e170 × 70 × 60 mm (6.69 × 2.76 × 2.36 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eClass I Division 2 Loop Parameter Limits\u003c\/h3\u003e\n\u003cp\u003eTo preserve non-incendive loop integrity, interconnected field wiring must comply strictly with the following electrical constraints:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax. Closed Loop Resistance:\u003c\/strong\u003e 250 Ω\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin. Open Loop Resistance:\u003c\/strong\u003e 15 kΩ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydrogen Environments (Group A \u0026amp; B):\u003c\/strong\u003e Max. Inductance = 8 mH | Max. Capacitance = 0.3 μF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-Hydrogen Environments (Group C \u0026amp; D):\u003c\/strong\u003e Max. Inductance = 22 mH | Max. Capacitance = 7 μF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Maintenance\u003c\/h2\u003e\n\u003ch3\u003eDIN Rail Mounting\u003c\/h3\u003e\n\u003cp\u003eSnap the module securely onto standard TS32 or TS35 DIN EN rails. The physical installation requires an absolute minimum rail length of 171 mm to guarantee stability and adequate side spacing inside the enclosure panel.\u003c\/p\u003e\n\u003ch3\u003eField Connection Protocols\u003c\/h3\u003e\n\u003cp\u003eConnect field wires using copper conductors up to a maximum size of 2.5 mm² (AWG 14). Strip the wire insulation back exactly 7 mm (0.28 in). Secure the wire inside the terminal block by applying a precise tightening torque of 0.5 Nm (0.37 ft-lb) to avoid damage to the terminal frame.\u003c\/p\u003e\n\u003ch3\u003eFuse Replacement Standards\u003c\/h3\u003e\n\u003cp\u003eIf a group experiences a dead short circuit, verify loop integrity before replacing the fuse. Only use original manufacturer part numbers (SOC SHV12 250 mA) to maintain the certified non-incendive thermal thresholds. Note that the maximum sustained output current per fuse must not exceed 175 mA.\u003c\/p\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003ch3\u003eCompact Footprint Optimization\u003c\/h3\u003e\n\u003cp\u003eMeasuring just 170 mm in length, this module optimizes internal cabinet space compared to traditional terminal blocks combined with external fuse holders, providing high-density I\/O allocation.\u003c\/p\u003e\n\u003ch3\u003eReduced Total Cost of Ownership\u003c\/h3\u003e\n\u003cp\u003eBy achieving Class I, Division 2 approval directly through internal current-limiting design, the assembly removes the requirement for expensive intrinsically safe galvanic isolators and dedicated grounding systems.\u003c\/p\u003e\n\u003ch3\u003eGlobal Safety Certifications\u003c\/h3\u003e\n\u003cp\u003eThe module holds full industrial compliance stamps including CE, TÜV, UL, CSA, and FM, meeting the rigorous standards necessary for deployment in global refining, petrochemical, and chemical complexes.\u003c\/p\u003e\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Why is the maximum output current per fuse limited to 175 mA when the fuse itself is rated for 250 mA?\u003c\/strong\u003e\u003cbr\u003eA1: The 175 mA limit enforces a safe engineering safety margin. This constraint prevents continuous operation near the thermal trip point of the fuse, preventing nuisance blowing caused by minor ambient temperature fluctuations or temporary current ripples.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: What happens to the remaining 7 channels if one channel develops a short circuit to ground?\u003c\/strong\u003e\u003cbr\u003eA2: If a short circuit draws current exceeding the fuse threshold on a single channel, the 250 mA common fuse for that specific group of 8 will open. This protects the system backplane but drops power to all 8 channels within that isolated group. The opposite group of 8 will continue running normally.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can this module be used with non-certified standard digital input devices in hazardous areas?\u003c\/strong\u003e\u003cbr\u003eA3: Yes, provided that the overall field circuit matches the non-incendive loop parameters (maximum loop resistance, inductance, and capacitance) defined for Gas Groups A-D. The current-limiting features of the FTA ensure that field wiring faults cannot generate a spark with sufficient thermal energy to ignite the atmosphere.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":51884874334340,"sku":"FS-TSDI-1624C","price":274.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/FS-TSDI-1624C.jpg?v=1779538156","url":"https:\/\/www.etowonauto.com\/pl\/products\/honeywell-fs-tsdi-1624c-24v-safety-input-fta","provider":"Etowon Auto","version":"1.0","type":"link"}