Littelfuse 50R200 - 1-PHASE VOLTAGE MONITOR/ 190-2
Littelfuse

50R200

UPC: 079458990706


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Overview

The Littelfuse 1-Phase Voltage Monitor (SKU: 50R200) is a precision-engineered solution designed to safeguard industrial electrical systems from damaging voltage fluctuations. Engineered for applications requiring 190-2V monitoring, this device delivers unparalleled reliability in critical power distribution, automation, and control environments where voltage stability is non-negotiable. As part of Littelfuse’s trusted portfolio of protection solutions, the 50R200 ensures operational continuity by detecting under-voltage, over-voltage, and phase loss conditions before they escalate into costly equipment failures or unplanned downtime. Voltage monitoring is a cornerstone of industrial electrical safety, and the 50R200 excels in environments where power quality directly impacts productivity. Typical applications include motor control centers, variable frequency drives (VFDs), HVAC systems, and renewable energy integration where inconsistent voltage can degrade performance or trigger protective shutdowns. The monitor’s compact design and DIN-rail mounting compatibility make it an ideal retrofit solution for existing control panels, while its robust construction withstands harsh industrial conditions, including temperature extremes and electromagnetic interference. Key features of the Littelfuse 50R200 include: - **Wide voltage range compatibility**: Monitors 190-2V single-phase systems, ensuring adaptability across global industrial standards. - **High-precision detection**: Accurately identifies voltage anomalies with minimal hysteresis, reducing false alarms while maintaining responsiveness to genuine threats. - **Integrated alarm output**: Provides dry-contact relay outputs for seamless integration with PLCs, SCADA systems, or local annunciation panels to trigger corrective actions or alerts. - **Durable construction**: UL-rated enclosure and vibration-resistant terminals ensure long-term reliability in demanding industrial settings. - **Easy configuration**: User-friendly adjustment knobs or optional digital interfaces (depending on variant) allow for quick setup without specialized tools. Professionals in industries such as manufacturing, oil and gas, water treatment, and data centers rely on Littelfuse’s voltage monitors to protect sensitive equipment from power surges, sags, or phase imbalances. The 50R200 is particularly valued in applications where regulatory compliance (e.g., IEC 61439, UL 508) is required, as it meets stringent safety and performance benchmarks. Installation is straightforward, with clear labeling and terminal blocks designed for quick wiring, while optional accessories like remote displays or communication modules (where available) extend functionality for networked systems. Littelfuse’s reputation as a leader in electrical protection solutions is built on decades of innovation and a commitment to quality. The 50R200 embodies this legacy, offering a cost-effective yet high-performance alternative to generic monitors. By proactively addressing voltage issues, this device not only prevents equipment damage but also enhances energy efficiency—reducing waste from inefficient operations or repeated motor starts caused by unstable power. For engineers and maintenance teams seeking a dependable voltage monitoring solution, the Littelfuse 50R200 delivers precision, durability, and peace of mind in every application.
  • Monitors 190-2V single-phase systems for voltage anomalies
  • High-precision detection with minimal hysteresis for accuracy
  • Dry-contact relay outputs for PLC/SCADA integration
  • DIN-rail mountable with durable UL-rated enclosure
  • Easy configuration with user-friendly adjustment options
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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.