Diversified Electronics

• Two-, Three-, and Four-Load Units Available
• Automatic Alternating or External Clocking
• LEDs Show Position Of Output
• Plug-in or Surface Mount
• In the Event of a Power Failure, Relays Will Return to Their Quiescent State and Continue Sequencing Loads One-at-a-Time

The Alternating Relay is used in multiple-load installations to assure equal run time on all loads. They also allow for the addition of more capacity in the event of excess load requirements. The Alternating Relay provides equal run time on two or more loads by alternating the sequence in which the loads are allowed to start up. In each case, the alternating action is initiated each time the control switch across designated terminals opens. The control switch may be a float, a thermostat, a pressure switch, or a timer contact.

• Two-Load Unit
• Automatic Alternating or External Clocking
• LEDs Show Position Of Output
• Plug-in or Surface Mount
• Option to Lock the Relay into Normal, A-B, or B-A Sequence

The Alternating Relay is used in multiple-load installations to assure equal run time on all loads. They also allow for the addition of more capacity in the event of excess load requirements. The Alternating Relay provides equal run time on two or more loads by alternating the sequence in which the loads are allowed to start up. In each case, the alternating action is initiated each time the control switch across designated terminals opens. The control switch may be a float, a thermostat, a pressure switch, or a timer contact.

• Monitors Delta or Wye Systems
• Monitors up to 480 VAC
• Fixed, Lock Shaft, or Screwdriver Adjustment
• Automatic Reset with Manual Option Available
• Plug-in or Surface Mount Styles

With normal operating voltages applied in the proper ABC sequence, the internal relay will energize. When incorrect phase sequence or phase loss occurs, or the three-phase voltages fall below the drop-out voltages, the relay will de-energize.
When a phase is lost while the motor is running, a condition known as regeneration occurs where a voltage is induced into the open phase nearly equal in magnitude to the normal phase-to-phase voltage. However, with the exception of lightly loaded motors, enough change is detected by the SLA to provide the required protection when properly adjusted.
Protects against:

• Phase Loss
• Under Voltage
• Phase Reversal

• Monitors Both Delta and Wye Systems
• Monitors up to 550 VAC
• Automatic or Manual Reset
• Adjustable Fault and Restart Delays
• Din Rail or Surface Mount Options

The SLU Series multi-mode phase monitoring relay was designed fo the convenience of electricians, maintenance managers, and engineers. A single SLU Phase Monitoring Relay can be easily adjusted for the voltage, imbalance percentage, and time delay requirements to protect against unbalanced voltages or single phasing, regardless of any regenerative voltages.

• 2500 Volt Isolation, Input to Output
• 24 or 120 VAC Models Available
• UL Listed
• Single Channel
• Plug-in or Surface Mount Models

The ISO Series single channel devices are used to provide a safe and reliable means of controlling loads from hazardous locations without releasing sufficient energy, under normal or abnormal conditions, to cause ignition of a flammable or combustible atmospheric mixture while in its most easily ignited concentration. An isolated output turns on when the control switch input from the hazardous location is closed. When the control switch input opens, the isolated output turns off. The style A devices come equipped with integral spring mating clips which secure the device to the base, making this unit a UL913 Intrinsically Safe plug-in. The style N, surface mounted enclosure is sealed with a high-quality epoxy resin material and has five #8-32 screw terminals.

• 2500 Volt Isolation, Input to Output
• 24 or 120 VAC Models Available
• UL Listed
• Multiple Channels
• Surface Mount

The ISO Series multiple channel devices are used to provide a safe and reliable means of controlling loads from hazardous locations without releasing sufficient energy, under normal or abnormal conditions, to cause ignition of a flammable or combustible atmospheric mixture while in its most easily ignited concentration. An isolated output turns on when the corresponding control switch input from the hazardous location is activated.

The SLD Series is designed to protect 3-phase equipment against Phase Unbalance, Phase Loss, Under Voltage and Phase Reversal conditions.
With normal operating voltage present on all three phases in the proper phase sequence, the internal relay will energize (PICK-UP). When an incorrect phase sequence or phase loss occurs or the three-phase line voltages fall outside the preset unbalance or under voltage settings, the internal relay will de-energize (DROP-OUT). When all conditions return to normal, the relay will reset.
The Adjustable Release Delay is provided to ignore momentary voltage fluctuations that cause nuisance tripping.
Both Delta and Wye systems may be monitored. In Wye Systems, connections to neutral are not required.

• Flasher
• 75 Flashes Per Minute Standard
• Totally Solid-State
• Totally Encapsulated Circuitry
• 1Amp (Fullwave) and 3 Amp (Halfwave) Versions

When supply voltage is applied, the OFF delay (T1) begins. Upon completion of the OFF delay, the load energizes and the ON delay (T2) begins. Upon completion of the ON delay, the load de-energizes and one cycle is complete. This ON/OFF cycling continues until the supply voltage is removed. The OFF delay always equals the ON delay.
Encapsulation provides protection against shock, vibration, and humidity.

• Detects Single or 3-Phase AC & DC Voltage or Stored Energy
• Redundant Circuitry
• Verification of Zero Energy in a Panel
• Fits 1-1/4" Conduit Knock-Out