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Relays have been the traditional building blocks of control since the 1950s. Still in wide use for simple control or power conversion, styles include electro-mechanical general or special purpose relays such as high power or hazardous location styles, as well as solid-state relays.
Relay Switches & Timer Relays
Category Selection
Electro-Mechanical Relays
Electromechanical relay switches are available in square relay / ice cube relay, plug-in relay, octal relay, power relay, hazardous location (HAZLOC) relay, latching relay, slim / card relay, panel mount, socket mount and DIN rail relay styles for use in a wide range of process control applications.
- Slim Interface Relays
- Force Guided Relays
- Square Relays / Cube Relays, Plug-In, 3A - 15A (78x/ Qxx/H78x Series)
- Octal Relays, Plug-In, 10A - 16A (750R / H750 / 755 Series)
- Power Relays, Open-Style, 40A (AD-PR40 Series)
- Hazardous Location (HAZLOC), Plug-In Relays, 3A - 12A H782/H750 Series)
- Latching Relays, Octal, 16A (755 Series)
- Slim / Card Relays, 5A (RS Series)
Solid State Relays (SSR)
A solid state relay switch is a control relay with isolated input and output, whose functions are achieved by means of electronic components without the use of moving parts such as those found in electromechanical relays.
These electronic relays are ideal for applications with many contact closures since solid state relay switches offer a greatly extended life compared to electromechanical relays.
- Panel Mount Relays, Hockey Puck Style,10A - 75A (AD-SSR6 Series)
- DIN Rail Mount Relays, 8A - 65A (AD-SSR2 / AD-SSR6 / AD-SSR8 / AD-HSSR8 Series
- Socket Mount Relays, 4A (AD-70S2 Series)
- Hazardous Location (HAZLOC) Relays, 8A, 10A, 15A (AD-HSSR8 Series)
Phase Monitoring Relays ... New!
Phase monitor relays provide protection against premature equipment failure caused by voltage faults on 3-phase systems. ProSense® phase monitor relays are compatible with typical Wye or Delta systems.
- PMRU-TL Series relays provide protection against phase loss, phase reversal, phase unbalance, undervoltage and overvoltage
- PMRR-TL Series relays provide phase reversal protection
- PMRRL-TL Series relays provide phase loss, phase reversal and undervoltage protection
Phase Monitoring Relays Overview
Alternating Relays ... New!
Alternating relays are used in special applications where the optimization of load usage is required by equalizing the run time of two loads.
- For duplex loads
- 120VAC Control voltage
- AR-TL Series Relays:
10A SPDT output configuration
can be used with one or two control switches - ARX-TL Series Relays:
10A DPDT cross-wired output configuration
can be used with two or three control switches
Pump Seal Failure Relays ... New!
PSFR relays are designed to monitor the shaft seals of submersible pumps. The relay output can be used to give an alarm indication of a leaking seal. The relay will automatically reset when the fault condition clears.
- Monitors submersible pump seals for leakage
- 8-pin, SPDT, single channel for one pump
- Adjustable sensitivity ranges (4.7K to 100K ohm)
- Uses industry-standard 8-pin octal sockets
Intrinsically Safe Relays ... New!
The ISD Series of Intrinsically Safe Relays provide a safe and reliable method to control up to four loads (motor starters, relays, etc.) with up to four input devices (switches, sensors, etc.) located in a hazardous area.
The ISE Series of Intrinsically Safe Relays provide a safe and reliable method to control a single load (motor starters, relays, etc.) with a single input device switches, sensors, etc.) located in a hazardous area.
Relay Sockets & Accessories
A variety of relay sockets and accessories for various types of relay switches are available:
- Relay sockets for QL and QM Series Relays
- Relay sockets for 78 Series Cube Relays
- Relay sockets for H78 Series Hazardous Location (HAZLOC) Relays
- Relay sockets for 75 Series Octal Relays
- Relay sockets for AD-SSR and AD-70S2 Series Solid State Relays
- Accessories for 78 Series Cube Relays
- Accessories for 75 Series Octal Relays
- Accessories for AD-SSR6 Solid State Relays
- Accessories for RS Series Slim / Card Relays
- MOV and Diode Plug-in Modules
Timer Relays / Counters / Tachometers
Timer Relays/ Time Delay Relays / Multi-Function
Digital Counter, Timer, Tachometer:
AutomationDirect offers solid state timers and digital timer relays from two leaders in the industry: FUJI Electric and Koyo. All timer relays meet UL and CE conformity. Koyo has been selling timer relays for over 30 years. FUJI Electric has been selling industrial timing relays in the U.S. since 1970.
AutomationDirect CTT series multi-function devices are easily configured for operation as digital counters, digital timers, combination timer-counters, or digital tachometers.
- Koyo Timer Relays - KT Series
- Fuji Timer Relays - MS Series
- Fuji Miniature Timer Relays - ST7 Series
- Multi-Function Digital Counter / Timer / Tachometer - CTT Series
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