Protection Relays

Littelfuse Announces a Complete Line of Protection Relay Products
Protection Relays

Littelfuse Announces a Complete Line of Protection Relay Products

New line includes Ground Fault Protection Relays, Motor Protection Relays, Feeder Protection Relays, Resistance Grounding Systems, and Supplemental Monitoring products. CHICAGO, Illinois, August 10, 2009 - Littelfuse, Inc. (NASDAQ/NGS: LFUS) announced a complete line of POWR-GARD® Protection Relay products that increase worker safety and protect equipment by detecting hazardous electrical...

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New Motor Phase Monitoring Relays from AutomationDirect
Protection Relays

New Motor Phase Monitoring Relays from AutomationDirect

AutomationDirect has extended the proSense line to include phase monitoring, alternating and pump seal failure relays. The PMRU phase monitoring relays utilize microprocessor-based design to protect against phase loss, reversal, unbalance, undervoltage and overvoltage conditions. With a variety of user-adjustable settings, PMRU relays also feature a multi-color LED to indicate normal and fault...

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Protection Relays

Motor Control includes network communications,

Suited for motor control centers and applications requiring control of multiple motors, SRW01 Motor Control Smart Relay provides solution for control, monitoring, and motor protection from 0.25-840 A. Unit includes USB connection, PLC functions, and WLP software for ladder programming. Operated as overload relay or as direct-on-line, reversing or star-delta starter, system protects against...

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Protection Relays

Protective Relay features reclosing capabilities.

Featuring microprocessor-based design, Model EDR-3000 provides 3-phase and ground overcurrent protection, and is compatible with ANSI and IEC applications. Panel-mounted, self-contained unit operates from ac or dc control power, providing true RMS and fundamental sensing of each phase and ground current. Ethernet port enables communications via Modbus-TCP. Offering multiple setting groups, relay...

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Distillation 101: A Guide to Distillation and Separation Technologies
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Distillation 101: A Guide to Distillation and Separation Technologies

Distillation is a separation unit operation that involves multiple countercurrent-stage steps, separating two or more volatile components. This results in the contact of liquid and vapor most generally in counterflow. Distillation 101: A Guide to Distillation and Separation Technologies provides an in-depth look at everything you need to know about distillation, including: Design procedures Equipment components Applications

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Ground Fault Relay offers adjustable time delay of 0-1.5 sec.
Protection Relays

Ground Fault Relay offers adjustable time delay of 0-1.5 sec.

Connected to WKE Series current transformer, RCD300M2 senses fault current, and if fault current exceeds relay trip setting, it activates and sends signal to disconnect high potential from equipment. Features include adjustable trip setting of 10 mA to 3 A, relay supply voltage of 24V AC/DC, or 120 Vac, 50-60 Hz, breaking capacity of 3 A at 240 Vac and 0.3 A at 110 Vdc, and fault indicator LEDs....

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Motor Controls support operating voltages up to 15 kV.
Protection Relays

Motor Controls support operating voltages up to 15 kV.

Designed for full voltage and solid-state, reduced voltage applications, OneGear product line utilizes both vacuum-contactor and circuit-breaker switching technology to help meet application needs. Line includes full voltage non-reversing controller, intelligent protection systems, and 10-15 kV SMC Flex controllers featuring ArcShield cabinet and Allen-Bradley PowerBrick technology. All offer...

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Electronic Relays monitor various motor values.
Protection Relays

Electronic Relays monitor various motor values.

Designed to monitor voltage, current, temperature, and phase sequence, PMDsigma Relays enable users to set values via rotary knob and save them to chip card. Data remains flexible and can be copied to other units. Model PMD s10 monitors true power of motors with rating up to 11 kW, and can process frequencies from 0-1,000 Hz, making it suitable for dc and ac motors as well as frequency-controlled...

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Protection Relays

Distribution Controller helps reduce power outage times.

SEL Distribution Automation Control System analyzes and detects permanent fault conditions such as broken jumpers, loss of substation source, and lockout due to miscoordinated protective devices, isolates affected feeder sections, and restores power to unaffected sections to reduce outage times. With ability to automate up to 6 sources and 100 devices, system includes drag-and-drop IEC 61131...

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Digital Relays comply with ANSI standards.
Protection Relays

Digital Relays comply with ANSI standards.

Featuring modular design with plug-and-play DIN rail mount options, Square D® SEPAM Line includes Series 80 for critical sources and loads, Series 40 for important sources and loads, and Series 20 for basic source and load requirements. Units feature graphical software package for programming, and backlit LCD display that allows multi-line text plus graphics. Display lets users view...

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Protection Relays

Relay/Monitor helps predict motor failure.

Designed to work as overload relay and motor system monitor, MOTOR+MEDIC provides diagnostic information needed to recognize impending motor failure or conditions that will lead to motor failure if not resolved. Included software suite allows user to sample motor's health on steady or periodic basis. In addition to low and high voltage, MOTOR+MEDIC protects 3-phase motors from low and high...

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