Littelfuse TDUS3002A - DIGI-SET TIMER-SINGLE SHOT
Littelfuse

TDUS3002A

UPC: 079458007367

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Specification Sheet

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Minimum Qty: 10

Multiplier: 10

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Overview

The Littelfuse TDUS3002A DIGI-SET Single Shot Timer is engineered for precision and reliability in demanding industrial automation and control systems. This advanced timer leverages microcontroller-based technology to deliver exceptional repeat accuracy of +/- 0.1%, ensuring consistent and predictable operation for critical processes. Its universal voltage capability, supporting 24 to 240VAC and 12 to 24VDC, simplifies inventory and installation across diverse equipment. The TDUS3002A offers a wide range of DIP switch-selectable time delays, spanning from 0.1 seconds to an impressive 102.3 minutes, configurable across three distinct ranges. This flexibility makes it an ideal solution for a broad spectrum of applications, from intricate process sequencing to machinery control. Designed for longevity and robust performance, the TDUS3002A features a totally solid-state and encapsulated construction. This design eliminates moving parts prone to wear and tear, providing superior resistance to shock, vibration, and humidity, thereby minimizing maintenance requirements and extending operational life. The timer's 1A steady-state and 10A inrush solid-state output is rated for 100 million operations under typical conditions, underscoring its durability. The compact design further enhances its suitability for OEM equipment and space-constrained industrial panels, allowing for flexible integration. Operation is straightforward: input voltage must be present before and during the timing cycle. The output energizes upon a momentary or maintained closure of the initiate switch, which is leading-edge triggered. Once the selected time delay elapses, the output de-energizes. Crucially, any changes to the initiate switch state during the timing interval do not affect the programmed delay. The output will energize if the initiate switch is already closed when input voltage is applied. Resetting the timer occurs when the delay is complete and the initiate switch opens, or alternatively, upon loss of input voltage, which also resets the output. Key applications for the Littelfuse TDUS3002A include process control systems, automated manufacturing lines, packaging machinery, material handling equipment, and any scenario requiring precise, repeatable single-shot timing events. Its versatility, combined with Littelfuse's reputation for quality and innovation in circuit protection and control, makes the TDUS3002A a trusted component for engineers and system integrators seeking dependable timing solutions. Complementary accessories like the P0700-7 Versa-Knob, P1015-64 female quick connects, and P1015-18 quick connect to screw adapters are available to facilitate seamless installation and integration into existing control panels and systems.
  • Microcontroller-based for +/- 0.1% repeat accuracy
  • Universal voltage operation: 24-240VAC and 12-24VDC
  • DIP switch selectable time delays from 0.1s to 102.3 min
  • 1A steady, 10A inrush solid-state output rated for 100 million operations
  • Totally solid-state and encapsulated for shock, vibration, and humidity resistance

Specifications

Current Rating
1 A steady-state / 10 A inrush
Material
Solid-state, encapsulated
Series
DIGI-SET Series
Voltage Rating
24-240 VAC / 12-24 VDC
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Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.