Littelfuse

TDML110DL

Name: Littelfuse TDML110DL Delay-on-Make Timer, 110V DC, 0.1-102.3s, DPDT 10A, 8-pin plug-in.
Brand: Littelfuse
SKU: TDML110DL
Availability: InStock

Alternate Item Number: TDML110DL

UPC: 079458999747

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Multiplier: 10

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Overview

The Littelfuse TDML110DL is a dedicated delay-on-make timer designed for precise industrial control applications. This unit features accurate digital integrated circuitry and isolated DPDT relay contacts, housed within an industry-standard 8-pin plug-in package. The TDML110DL offers a highly flexible time delay range of 0.1 to 102.3 seconds, adjustable in 0.1-second increments via user-friendly DIP switches. This precise adjustment capability ensures fine-tuning for specific application requirements, making it a preferred choice for custom control panel and OEM designers. Operation is straightforward: upon application of input voltage (110V DC for this model), the time delay sequence begins. The output relay remains de-energized during this delay period. Once the set time elapses, the DPDT output relay energizes and stays active until the input voltage is removed, at which point the timer resets. This delay-on-make functionality is crucial for applications requiring a specific activation delay. The timer boasts a repeat accuracy of ±0.1% and a setting accuracy of ±2%, ensuring consistent and reliable performance. An integrated LED indicator provides visual confirmation of the timing status, with the LED glowing while the relay is de-energized during the delay period. The TDML110DL is built for durability with a mechanical life of 1 x 10^7 cycles and an electrical life of 1 x 10^6 cycles at its rated load. The isolated 10A DPDT output contacts allow for control of both AC and DC loads up to 120/240V AC resistive or 1/3 hp at 120/240V AC. Reverse polarity protection is included for DC units. The unit operates within a temperature range of -20°C to 65°C. For UL listing, it requires an appropriate 8-pin octal socket such as the Littelfuse OT08PC or P1011-6. The TDML110DL is a dependable timing solution for a multitude of automation and control systems.

Delay-on-make operation with precise digital circuitry
Adjustable time delay from 0.1 to 102.3 seconds via DIP switches
Isolated 10A DPDT relay contacts for AC/DC load control
Industry-standard 8-pin plug-in package for easy installation
110V DC input voltage with reverse polarity protection

Specifications

Brand Name	Littelfuse
Mounting	Plug-in socket Mount
Number Of Poles	Plug-in socket
Operating Temperature	-20 to 65 F
Operating Temperature, Maximum	65 F
Operating Temperature, Minimum	-20 F
Special Features	10Y WARR
Standard	CE/UR/CSA/UL
Sub Brand	SSAC

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The TDB Series combines accurate digital circuitry with isolated, 10A, DPDT or SPDT contacts in an 8 or 11-pin plug-in package. The TDB Series features DIP switch selectable time delays ranging from 0.1-10,230 seconds in three ranges. The TDB Series is the product of choice for custom control panel and OEM designers. Operation (Delay-on-Break): Input voltage must be applied to the input before and during timing. Upon closure of the initiate switch, the output relay is energized. The time delay begins when the initiate switch is opened (trailing edge triggered). The output remains energized during timing. At the end of the time delay, the output de-energizes. The output will energize if the initiate switch is closed when input voltage is applied. Reset: Reclosing the initiate switch during timing resets the time delay. Loss of input voltage resets the time delay and output.

TRDU120A1

The TRDU Series is a versatile universal time delay relay with 21 selectable single and dual functions. The dual functions replace up to three timers required to accomplish the same function. Both the function and the timing range are selectable with switches located on the face of the unit. Two LED's indicate input voltage and output status. This device offers full 10A isolated relay output contacts in either SPDT or DPDT. The TRDU replaces hundreds of part numbers, thereby, reducing your stock inventory requirements. 21 Functions: Five switches are provided to set one of 10 single or 11 dual modes of operation. See datasheet for a complete list of singe and dual functions.

TRU2

The TRU Series is a multifunction, knob adjustable, Universal Time Delay Relay. It includes six of the most popular timing functions selected by a slide switch. The time delay is knob adjustable and the time delay range is switch selectable. The repeat accuracy is + 0.1%. Both function and time range can be selected on the top face of the unit. In addition to multifunctioning and multiple time ranges, the TRU Series features universal input voltage; 19 to 264VAC and 19 to 30VDC and full 10A output relay. The TRU Series can directly replace up to 1000 competitive time delay relay models. Operation: A six position slide switch selects delay-on-make, interval, single shot, recycling (ON time first, equal recycle delays), delay-on-break, and retriggerable single shot. 8-pin DPDT base wiring is limited to delay-on-make, interval, and recyclingfunctions. All six functions are available in the 8-pin SPDT and 11-pin DPDT versions.

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The TDM/TDMH/TDML Series is a delay-on-make timer that combines accurate digital circuitry with isolated, DPDT relay contacts in an industry standard 8-pin plug-in package. DIP switch adjustment allows precise selection of the time delay over the full time delay range. The TDM/TDMH/TDML Series is the product of choice for custom control panel and OEM designers. Operation (Delay-on-Make): Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output relay energizes and remains energized until input voltage is removed. Reset: Removing input voltage resets the time delay and output.

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The TDUS Series combines digital timing circuitry with universal voltage operation. Voltages of 24 to 240VAC and 12 to 24VDC are available in three ranges. The TDUS Series offers DIP switch selectable time delays ranging from 0.1 seconds to 102.3 minutes in three ranges. Its 1A rated output, ability to operate on multiple voltages, and wide range of switch selectable time delays make the TDUS Series an excellent choice for process control systems and OEM equipment. Operation (Single Shot): Input voltage must be applied before and during timing. Upon momentary or maintained closure of the initiate switch (leading edge triggered), the output energizes for a measured interval of time. At the end of the delay, the output de-energizes. Opening or reclosing the initiate switch during timing has no affect on the time delay. The output will energize if the initiate switch is closed when input voltage is applied. Reset: Reset occurs when the time delay is complete and the initiate switch is opened. Loss of input voltage resets the timedelay and output.

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The TDI Series is an interval timer that combines accurate digital circuitry with isolated, 10A rated, DPDT relay contacts in an 8-pin plug-in package. The TDI Series features DIP switch selectable time delays ranging from 0.1 to 10,230 seconds in three ranges. The TDI Series is the product of choice for custom control panel and OEM designers. Operation (Interval): Upon application of input voltage, the time delay begins. The output relay is energized during the time delay. At the end of the time delay, the output de-energizes and remains de-energized until input voltage is removed. Reset: Removing input voltage resets the time delay and the output.

Frequently Asked Questions

What technical support resources does Littelfuse offer?

Littelfuse provides a Techline with technical experts who can answer product questions, offer cross references, provide engineering drawings, and give application assistance. They can be contacted at 1-800-TEC-FUSE or [email protected].

How can I access Littelfuse product information and sales tools?

Littelfuse offers multiple digital resources including Littelfuse University for training, a digital asset portal for marketing materials, RepFiles mobile app for product information, and the Littelfuse Business Center website for product availability, pricing, and ordering.

What types of industrial protection products does Littelfuse offer?

Littelfuse provides a comprehensive range of industrial protection products including fuses, fuse holders, protection relays, motor protection devices, ground-fault protection relays, arc-flash protection relays, and pump protection controllers.

What marketing support does Littelfuse provide to distributors?

Littelfuse offers a Marketing to Marketing program that includes co-branded email campaigns, content sharing, marketing tool training, product launch support, and website linking. The program is free and aims to help distributors grow sales.

How can distributors participate in Littelfuse's promotional programs?

Distributors can access Promotional Allowance Programs for demand generation campaigns, sales incentives, joint email campaigns, trade shows, and other brand awareness activities. Activities must be pre-approved at least 30 days in advance.

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.