Protection Relays

Quality Phase Relay monitors line and load circuit sides.
Protection Relays

Quality Phase Relay monitors line and load circuit sides.

SLL Series quality phase monitors protect motors, pumps, and compressors against phase loss, over/under voltage, unbalance, and incorrect phase sequence. It is packaged in combination surface and DIN rail mounting enclosure and accepts voltage inputs from 200-500 Vac. Product features adjustable restart and fault delays as well as rapid cycle monitoring. DELTA and WYE systems may be monitored.

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Relay monitors 3-phase voltage from 208-600 Vac.
Protection Relays

Relay monitors 3-phase voltage from 208-600 Vac.

Model SLU-600-ASDS Universal Phase Monitor provides protection against premature equipment failure caused by poor 3-phase power quality. It employs pluggable cage clamp terminal blocks, as well as optional DIN rail/flat surface mounting. Relay provides scalable selection of imbalance percentage, fault, restart delay, and visual fault status indication with auxiliary alarm contacts.

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Phase Monitors protect against phase loss and reversal.
Protection Relays

Phase Monitors protect against phase loss and reversal.

Series PCP plug-in style phase monitors, available in either 120 V or universal 208-480 V versions, come in compact case with 8-pin plug-in base. No adjustments are necessary to set voltage on universal version, and normal operation for both versions is indicated through red status LED. Units are UL recognized in Canada and US, and are suitable for motor, compressor, and generator applications.

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Differential Relay suits transformer applications.
Protection Relays

Differential Relay suits transformer applications.

Incorporating selectable transformer winding configuration, selective tripping of high/low-side breakers, and breaker health monitoring, iXP-420 also includes Virtual Test Set(TM) event record simulator. Protection features include over-excitation (V/Hz), under/over-voltage, phase overcurrent, negative-sequence overcurrent, and breaker fail-to-trip/fail-to-close indicators. Unit comes with IDEA...

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Protection Relays

Relays enhance machine monitoring.

MachineAlert(TM) function protection relays include phase monitors, current monitors, thermistor monitors, and motor rotation monitors. Microprocessor technology combined with solid-state circuitry provides repeatable operation. LCD keypad programming takes guesswork out of device set up. Motor control enhancing functions of relays protect equipment and monitor applications to help reduce...

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Electronic Overload Relay protects motors.
Protection Relays

Electronic Overload Relay protects motors.

Microprocessor-based, MotorGuardian(TM) MPA-1000 provides protection for 3-phase ac motors, pumps, and compressors. It installs in new or retrofit applications using 2-piece, clip-on current transformers. DIN-rail mount enclosure includes 2-line, 16-character, vacuum-fluorescent display.

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Programmable Relays suit power distribution applications.
Protection Relays

Programmable Relays suit power distribution applications.

Enclosed in NEMA Type 6 chemically treated, waterproof drawn-brass shell, MPCV Network Protector Communications Relays grant access to voltage, current, power, power factor, harmonics, and last trip information. Users select from 2 closing curves, including modified, circular, closed curve. Relays monitor network protector's internal enclosure for temperature, alarms of detected anomalies, and...

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Relays protect utility equipment.
Protection Relays

Relays protect utility equipment.

Series 24 Type WL-2 and WL Lock-Out Relays feature manual-, electric-, or self-reset capability. Manual-reset LORs have nominal trip speed of less than 8 msec. Electric- and self-reset models are available in standard-speed (12 to 15 msec) or high-speed (8 msec or less) trip configuration. Maximum of 10 decks can be stacked in one relay, providing 2 N/O and 2 N/C contacts per deck. Contacts are...

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Generator Relay protects against abnormal conditions.
Protection Relays

Generator Relay protects against abnormal conditions.

SEL-547 Distributed Generator Interconnection Relay provides utility-grade protection when using generator in all operating modes including peak shaving, base loading, islanding, and emergency backup. Relay provides most basic generator protection functions recommended by IEEE Standard P1547 including over/under voltage detection for single or 3-phase, over/under frequency detection, synchronism...

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Protection Relay monitors 2-winding transformers.
Protection Relays

Protection Relay monitors 2-winding transformers.

SEL-387A monitors and protects transformers and other 2-port electrical apparatus. Protection includes differential and overcurrent protection for 3-phase current inputs, and optional Restricted Earth Fault function. Four serial communications ports enable remote metering and control of system functions and settings via PC. Sequential-events recorder logs all changes of state within relay logic...

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Fresh Air Intake Designed to Meet ASHRAE 62.2 standards
Sponsored

Fresh Air Intake Designed to Meet ASHRAE 62.2 standards

Alan Manufacturing has a long history of developing innovative solutions for HVAC applications. With over 1,000 product designs under our belt, we have gained a reputation as the go-to source for HVAC dampers, hardware, duct supports, zone control systems, and much more. Adding to this extensive list of achievements we now announce the release of our new line of Fresh Air Intake products. Designed to meet ASHRAE 62.2 standards, they are the most robust and high-performance product of their kind. See our video to learn more.

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