Littelfuse T3000.0030 - T3000 Frequency Relay. 100/110V. The T3000 is intended for effective frequency surveillance on generators, busbar or other distribution systems. The relay contains the functions “under frequency” and “over frequency” time delayed, and 2 individual output relays, one relay for each function.
Littelfuse

T3000.0030

UPC: 079458962994

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Overview

The Littelfuse T3000.0030 Frequency Relay (SKU: T3000.0030) is a critical component for ensuring the stability and reliability of power systems, particularly in generator, busbar, and distribution network applications. Engineered by Littelfuse, a globally recognized leader in circuit protection and power control solutions, this frequency relay provides robust and precise monitoring of system frequency. Designed for operation within 100/110V systems, the T3000.0030 offers advanced frequency surveillance capabilities. Its primary function is to detect deviations from the nominal system frequency, providing essential protection against both under-frequency and over-frequency conditions. These deviations can arise from various operational factors, including load changes, generator instability, or grid disturbances, and if left unaddressed, can lead to significant equipment damage, operational inefficiencies, and costly downtime. The relay incorporates sophisticated time-delayed functions for both under-frequency and over-frequency detection. This time delay is crucial for preventing nuisance tripping due to transient frequency fluctuations, allowing the system to self-correct where possible while still ensuring protection against sustained deviations. The adjustable time delay parameters (though specific values are not detailed here, they are a standard feature in such devices) allow for fine-tuning to match the specific operational characteristics and protection requirements of the protected system. A key feature of the Littelfuse T3000.0030 is its dual individual output relays. Each output relay is dedicated to one of the protection functions: one for under-frequency and another for over-frequency. This independent relay configuration provides enhanced control and flexibility in system integration. Upon detecting a fault condition that exceeds the set thresholds and time delays, the respective output relay will activate, signaling the control system to take appropriate action. This action could include tripping a circuit breaker, shutting down a generator, or initiating other protective measures to safeguard the system and connected equipment. Applications for the T3000.0030 are widespread across industrial sectors, including: * **Generator Protection:** Essential for standalone generators and parallel generator systems to maintain stable frequency output and prevent damage from load fluctuations. * **Busbar Monitoring:** Crucial for ensuring the integrity of busbars in substations and industrial facilities by detecting frequency anomalies that could indicate system stress. * **Distribution Systems:** Provides vital protection in utility and industrial distribution networks, safeguarding against frequency deviations that can impact the quality and stability of power delivered to end-users. * **Critical Infrastructure:** Deployed in facilities where power continuity and stability are paramount, such as data centers, hospitals, and manufacturing plants. Littelfuse's commitment to quality and reliability is evident in the T3000 series. Professionals rely on Littelfuse products for their robust construction, accurate performance, and long service life, even in demanding industrial environments. The T3000.0030 is designed for straightforward installation and integration into existing control panels and systems, adhering to industry standards for electrical safety and performance. Its comprehensive frequency surveillance capabilities make it an indispensable tool for maintaining operational integrity and preventing costly failures in critical power applications.
  • Effective frequency surveillance for generators, busbars, and distribution systems.
  • Provides time-delayed under-frequency and over-frequency protection.
  • Features two individual output relays, one for each protection function.
  • Designed for 100/110V system operation.
  • Manufactured by Littelfuse, a trusted leader in circuit protection.

Specifications

Application
Industrial
Brand Name
Littelfuse
Series
T3000
Special Features
High Quality
Sub Brand
Relay Series
Type
Protection Relays and Controls
Voltage Rating
100/110V
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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.