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| 3-Phase Monitors |
| Model 158 - Surface-Mount for HVAC Applications, Optional 5 Minute Short Cycle Time Delay | Catalog Specs | Web Site |
| Model 200 - Detects Voltage Unbalance, Percent of Unbalance Adjustment, Automatic Reset | Catalog Specs | Web Site |
| Model 246 - Monitors for Phase Loss, Reversal, Low Voltage and High Voltage | Catalog Specs | Web Site |
| Model 2500 - Monitors Phase Loss or Reversal, Low Voltage or Voltage Unbalance | Catalog Specs | Web Site |
| Model 2501 - Monitors Phase Loss or Reversal, Low Voltage or Voltage Unbalance, Fail-Safe Mode | Catalog Specs | Web Site |
| Model 252 - Detects Phase Loss, Low Voltage and Phase Reversal, 50Hz and 60Hz Models | Catalog Specs | Web Site |
| Model 2522 - Detects Phase Loss, Low Voltage and Phase Reversal, Automatic or Manual Reset | Catalog Specs | Web Site |
| Model 253 - Socket-Mounted, Senses Phase Reversal, Low Power Consumption | Catalog Specs | Web Site |
| Model 2532 - Senses Phase Reversal on Wye or Delta, 190 to 500 VAC Range | Catalog Specs | Web Site |
| Model 257 - Detects Phase Loss, Phase Reversal and Low Voltage, 50Hz, 60Hz and 400Hz Models | Catalog Specs | Web Site |
| Model 258 - Detects Phase Loss, Phase Reversal and Low Voltage, 50Hz, 60Hz and 400Hz Models | Catalog Specs | Web Site |
| Model 2581 - Detects Phase Loss, Phase Reversal and Low Voltage, Encapsulated Circuitry | Catalog Specs | Web Site |
| Model 259 - DPDT 600 VAC Output Contacts, Adjustable Trip Delay, Voltage Level and Restart Delay | Catalog Specs | Web Site |
| Model 2594 - DPDT 600 VAC Output Contacts, Adjustable Failure Level, Automatic Reset | Catalog Specs | Web Site |
| Model 263 - Detects Phase Loss, Phase Reversal and Low Voltage, 400Hz and Gold Contact Options | Catalog Specs | Web Site |
| Model 2638 - Detects Low Voltage, Phase Loss and Phase Reversal, LED Status Indicators | Catalog Specs | Web Site |
| Model 264 - Trips on Phase Loss, Phase Reversal and Low Voltage, Adjustable Trip Delay | Catalog Specs | Web Site |
| Model 2642 - Monitors Low Voltage, Phase Loss and Phase Reversal, Adjustable Trip Delay | Catalog Specs | Web Site |
| Model 2644 - Monitors Low Voltage, Phase Loss and Phase Reversal, Optional Restart Delay | Catalog Specs | Web Site |
| Model 265 - HVAC or Compressor Applications, Adjustable Restart Delay | Catalog Specs | Web Site |
| Model 2652 - Monitors Low Voltage, Phase Loss and Phase Reversal, DPDT Output Contacts | Catalog Specs | Web Site |
| Model 269 - Trips on High Voltage, Low Voltage, Phase Loss and Phase Reversal | Catalog Specs | Web Site |
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| Voltage Monitors |
| Model 2621 - Dual Set Point, AC/DC Voltage Monitor, Switch Selectable Relay Operation | Catalog Specs | Web Site |
| Model 260 - Monitors for Over or Under Voltage, LED Status Indicator, Plug-In Mounting | Catalog Specs | Web Site |
| Model 2601 - Monitors Under Voltage, SPDT Output In Standard Relay Configuration | Catalog Specs | Web Site |
| Model 2628 - Monitors Over or Under Voltage, Any AC or DC Voltage From 15 to 260 Volts | Catalog Specs | Web Site |
| Model 268 - Useful Range of 90 to 140 VAC, Monitors Over and Under Voltage | Catalog Specs | Web Site |
| Model 2681 - SPDT Output, Monitors Over and Under Voltage, Automatic Reset | Catalog Specs | Web Site |
| Model 160 - Monitors for Over or Under Voltage, Surface-Mount Package | Catalog Specs | Web Site |
| Model 2602 - Protects Voltage-Sensitive Equipment, Reset Delay Timer | Catalog Specs | Web Site |
| Model 292 - Solid-State Electronic Circuitry, Monitors Over and/or Under Frequency | Catalog Specs | Web Site |
| Model 2962 - Monitors Voltage, Frequency and Phase Sequence, 24V DC Input Voltage | Catalog Specs | Web Site |
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| Current Monitors |
| Model 2744 - 3-Phase Over Current Monitor for Motor Jams | Catalog Specs | Web Site |
| Model 273 - Adjustable Trip Point, Over or Under Current Sensing | Catalog Specs | Web Site |
| Model 278 - High Accuracy, Isolated Input and Output, Socket-Mounted, Solid State Design | Catalog Specs | Web Site |
| Model 2780 - High Accuracy, Isolated Input & Output, Socket-Mounted, Solid State, 0-10VDC Output | Catalog Specs | Web Site |
| Model 279 - Adjustable Hysteresis and Trip Points, Remote Adjust Available | Catalog Specs | Web Site |
| Model 276XR - Allows Longer Transmission Lines From Ct to Current Instrument | Catalog Specs | Web Site |
| Model 173 - No Ct Required for Currents up to 25 Amps, AC Currents From 40 to 400 Hz | Catalog Specs | Web Site |
| Model 1732 - No Ct Required for Currents up to 25 Amps, AC Currents From 50 to 400 Hz | Catalog Specs | Web Site |
| Model 272 - Automatic Reset, Monitors for Current Unbalance, Adjustable Trip Delay | Catalog Specs | Web Site |
| Model 2734 - Current Sensitive Relay, Adjustable Start-up and Trip Delays | Catalog Specs | Web Site |
| Model 274 - Monitors Three Simultaneous Currents, 1 to 5 Amps Per Leg | Catalog Specs | Web Site |
| Model 421 - Monitors True Motor Power (Volts x Current x Power Factor) | Catalog Specs | Web Site |
| Model 2722 - Monitors 3-Phase AC Current, Compares Three Single-Phase Motors | Catalog Specs | Web Site |
| Model 2732 - Detects Over or Under Current, Adjustable Trip Delay | Catalog Specs | Web Site |
| Model 2742 - Monitors Over or Under Current, Adjustable Trip Delay Timer, Fail-Safe Design | Catalog Specs | Web Site |
| Model 275 - Panel Mounted, Over Current and Tripped Indicators | Catalog Specs | Web Site |
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| Special Controls |
| Model 650 - Loop Power Supply, Three DC Voltage Outputs, Dual DC Voltage Outputs | Catalog Specs | Web Site |
| Model 652 - Loop Power Supply, Three DC Voltage Outputs, DC Output Currents to 150 ma | Catalog Specs | Web Site |
| Model 6524 - DC Power Supply, Three DC Voltage Outputs, for Output Currents up to 400 ma | Catalog Specs | Web Site |
| Model 412 - Automatic Reverse Controller, Adjustable Current Level | Catalog Specs | Web Site |
| Model 295 - Capacitor Trip Device, Discharge Manually or By a Control Device | | Web Site |
| Model 410 - Auto-Charged Capacitor Trip Device, Self-Contained Standby Power Source | | Web Site |
| Model 421 - Motor Load Monitor, Monitors True Motor Power (Volts x Current x Power Factor) | | Web Site |
| Model 640 - Power Factor Regulator, High Accuracy Phase-Angle Sensing | | Web Site |
| Model 850 - Two Hand Control Module, Continuous or Pulse Modes, AC or DC | | Web Site |
| Model TSA - Transient/Surge Absorber, Effectively Absorbs High Energy Electrical Spikes | | Web Site |
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| Time Delay Relays |
| Model 300 - Programmable Timer, Multiple Timing and Voltage Ranges, Digital Timing Circuit | Catalog Specs | Web Site |
| Model 310 - Programmable Timer, Multiple Timing Ranges, Digital Timing Circuit | Catalog Specs | Web Site |
| Model 330 - Operate Delay Relay, Solid-State Design, 10 Amp Relay Contacts | Catalog Specs | Web Site |
| Model 331 - Release Delay Relay, Solid-State Design, 10 Amp Relay Contacts | Catalog Specs | Web Site |
| Model 332 - Interval Timer, Solid-State Design, 10 Amp Relay Contacts | Catalog Specs | Web Site |
| Model 338 - Recycle Timer, Solid-State Design, 10 Amp Relay Contacts | Catalog Specs | Web Site |
| Model 339 - On/Off Delay Relay, Separate Delay Adjustments | Catalog Specs | Web Site |
| Model 360 - Operate Delay Relay, Wide Variety of Voltage and Timing Ranges | Catalog Specs | Web Site |
| Model 361 - Release Delay Relays, Wide Variety of Voltage and Timing Ranges | Catalog Specs | Web Site |
| Model 362 - Interval Timer, Wide Variety of Voltage and Timing Ranges | Catalog Specs | Web Site |
| Model 363 - Operate Delay Relay, one Instant and one Timed Contact | Catalog Specs | Web Site |
| Model 368 - Recycle Timer, Interchangeable With General Purpose Timers | Catalog Specs | Web Site |
| Model 380 - Operate Delay Relay, Timing and Timed Out LEDÆS | Catalog Specs | Web Site |
| Model 381 - Release Delay Relay, Timing and Timed Out LEDÆS | Catalog Specs | Web Site |
| Model 382 - Interval Timer, Timing and Timed Out LEDÆS | Catalog Specs | Web Site |
| Model 553 - Re-Acceleration Relay, On-Delay, True Off-Delay | Catalog Specs | Web Site |
| Model 349 Series - Override Timer, Uses Standard Wall Switch Box | Catalog Specs | Web Site |
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| Alternating Relays |
| Model 261 - Series Alternating Relay, Solid-State Reliability, Socket Mounted | Catalog Specs | Web Site |
| Model 261XBXP - Alternating Relay, Solid-State Reliability, Socket Mounted | Catalog Specs | Web Site |
| Model 2611 - Alternating Controller, Alternate Two Loads or Lock Sequence with Lead Select Switch | Catalog Specs | Web Site |
| Model 271 - 3-Stage Alternator, First On-First Off Operation, Alternates Triplex Systems | | Web Site |
| Model 471 - Multi-Stage Alternator, Replaces Mechanical Alternators | | Web Site |
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| Transducers |
| Model 278 - AC Current Transducer, High Accuracy, Isolated Input and Output | | Web Site |
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| Liquid Level Controllers |
| Model 4062 - Pump-Up Controller, Duplex Pump Alternation, 4-20 ma Input | Catalog Specs | Web Site |
| Model 407 - 3-Pump Liquid Level Controller, 3 Run Time Meters | Catalog Specs | Web Site |
| Model 408 - 5-Level Liquid Level Sensor, Digital Display of Water Depth In Feet | Catalog Specs | Web Site |
| Model 4082 - Level Simulator Control, 2 Scaleable 4-20 ma Outputs | Catalog Specs | Web Site |
| Model 456-15 - Pressure Transducer, 0-15 PSI Pressure Input, 4-20ma Output | Catalog Specs | Web Site |
| Model 680 - 4-20 ma Simulator, Coarse and Fine Adjustments, LCD Display | Catalog Specs | Web Site |
| Model 409 - Automatic Control of Liquid Level, Solid-State Sensing Circuit | Catalog Specs | Web Site |
| Model 4092 - Dual Seal Failure Detector, 120VAC and 240VAC Versions | Catalog Specs | Web Site |
| Model 4092-I - Isolated Dual Seal Failure Detector, Electrically Isolated Inputs | Catalog Specs | Web Site |
| Model 450 - Pressure Transducer, 0-15 PSI Air Pressure Input, 4-20 ma Output | Catalog Specs | Web Site |
| Model 460 - Switch-to-Loop Converter, 50ma Minimum to External Switches | Catalog Specs | Web Site |
| Model 403 - Liquid Level Controller, Dual Run-Time Meters, Alarm Outputs | Catalog Specs | Web Site |
| Model 404 - Liquid Level Sensor, Digital Display of Water Depth, 4 Adjustable Trip Points | Catalog Specs | Web Site |
| Model 4042 - Liquid Level Controller, Level Simulator Control, Pressure Transducer Socket | Catalog Specs | Web Site |
| Model 4052 - Pump-Down Controller, Duplex Pump Alternation, 4-20 ma Input | Catalog Specs | Web Site |
| Model 422 - Submersible Pump Controller, Monitors True Motor Power | | Web Site |
| Model 448 - Output Relay Board, 5 Electromechanical Relay Contacts | | Web Site |
| Model 4000 - Surface-Mounting Kit, 20 Ga CRS Enclosure, Removable Access Panel | | Web Site |
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| 3-Phase Testers |
| Model 108A - Line Voltage and Phase Sequence Detector, 50/60 Hz | | Web Site |
| Model 108D - Line Voltage and Phase Sequence Detectors, 400 Hz | | Web Site |
| Model 108B - Phase Sequence Detector, Indicates Phase Sequence ABC or CBA | | Web Site |
| Model 108C - Motor Rotation Indicator, No External Power Required | | Web Site |
| Model 125C - 400 Hz Phase Sequence Detectors, Indicates Phase Sequence ABC or CBA | | Web Site |
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