Automatic Reset Protective Relays and Monitoring Relays
from Time Mark Corporation
The Model 2500 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase-angle sensing circuits, which drive a SPDT electromechanical output relay. When the correct voltage and phase sequence is applied to a... [See More]
- Features: Automatic Reset; Programmable Time Delay; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay; Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The CM Series is used to detect either an overcurrent or undercurrent condition. The pick-up current setting is user-adjustable within one of three ranges as shown in the Product Selection Table below. An external current transformer can be used to extend the range beyond 10 amperes. Choose between... [See More]
- Features: Automatic Reset; Visual Indicator
- Protective Functions: Time Delay
- Current Sensitive Relay: Over-Current Protection; Undercurrent
- Current Sensing Range: 0.1000 to 1
from Time Mark Corporation
The Model 2501 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase-angle sensing circuits, which drive a SPDT electromechanical output relay. When the correct voltage and phase sequence is applied to a... [See More]
- Features: Automatic Reset; Programmable Time Delay; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay; Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The CO Series is used to detect an overcurrent condition. The pick-up current setting is user-adjustable within one of three ranges as shown in the Product Selection Table below. An external current transformer can be used to extend the range beyond 10 amperes. Choose between a fixed drop-out... [See More]
- Features: Automatic Reset; Programmable Time Delay; Visual Indicator
- Protective Functions: Time Delay
- Current Sensitive Relay: Over-Current Protection
- Current Sensing Range: 0.1000 to 1
from Time Mark Corporation
The Model 246 3-Phase Monitor is designed to continuously monitor 3-phase power lines for abnormal conditions. This device features solid-state voltage and phase angle sensing circuits, which drive a SPDT electromechanical relay. A neutral is not required, allowing the Model 246 to be used with... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The CU Series is used to detect an undercurrent condition. The drop-out current setting is user-adjustable within one of three ranges as shown in the Product Selection Table below. An external current transformer can be used to extend the range beyond 10 amperes. The pick-up current setting is fixed... [See More]
- Features: Automatic Reset; Programmable Time Delay; Visual Indicator
- Protective Functions: Time Delay
- Current Sensitive Relay: Undercurrent
- Current Sensing Range: 0.1000 to 1
from Time Mark Corporation
The Model 259 3-Phase Monitor is designed to protect individual 3-phase equipment and motors, or in conjunction with shunt trip breakers. When correct voltage and phase rotation is applied, an internal DPDT relay energizes. A fault condition (phase loss, phase reversal, or low voltage) drops out the... [See More]
- Features: Automatic Reset; Programmable Time Delay; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay; Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The PAP Series Phase Monitor Relays provide protection against phase loss, phase reversal & undervoltage in a compact plug-in design. These devices are designed to be compatible with most Wye or Delta systems. Phase Monitor Relays protect against single phasing regardless of any regenerative... [See More]
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Line Voltage Range: 90 to 120
from Time Mark Corporation
The Model 2594 3-Phase Monitor is designed for use with applications which require high control voltage (up to 600VAC). The Model 2594 protects 3-phase equipment and motors from phase loss, phase reversal and low voltage. When the correct voltage and phase rotation is applied, an internal DPDT relay... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The PCP Series Phase Monitor Relays provide protection against phase reversal in a compact plug-in design. One version will work on any 3 phase system from 208V to 480V (a separate 120V-only version is also available). These devices are designed to be compatible with most Wye or Delta systems. The... [See More]
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Line Voltage Range: 120
- Power (Phase) Sensing: Reversal
- Approvals: UL, RU
from Time Mark Corporation
The Model 263 continuously monitors 3-phase power systems for phase loss, low voltage and phase reversal. The monitor consists of a solid-state sensing circuit, driving an electromechanical relay. Applying correct voltage and phase rotation energizes the relay. When properly adjusted, a fault... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The PLP Series Phase Monitor Relays provide protection against phase loss & phase reversal in a compact plug-in design. These devices are designed to be compatible with most Wye or Delta systems. Phase Monitor Relays protect against single phasing regardless of any regenerative voltages. The... [See More]
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Line Voltage Range: 120
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Approvals: UL, RU
from Time Mark Corporation
The Model 264 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for abnormal conditions. The solid-state electronic sensing circuit drives two separate single pole relays, one normally open and the other normally closed. An adjustable trip delay reduces or eliminates nuisance... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The PMD Series Phase Monitor Relays utilize a microprocessor-based design to provide protection against phase loss, phase reversal, phase unbalance, undervoltage and overvoltage. The PMDU is a universal voltage product that works on any three-phase system voltage from 208-480V (separate 120V &... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
from Time Mark Corporation
The Model 2642 protects electrical equipment by sensing phase loss, low voltage and reverse phase conditions. The monitor uses a combination of voltage and phase-angle sensing, and will detect a phase loss even when regenerated voltages are present. The Model 2642 is fail safe; the output contacts... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
The PMP Series Phase Monitor Relays utilize a microprocessor-based design to provide protection against phase loss, phase reversal, phase unbalance, undervoltage and overvoltage. The PMPU is a universal voltage product that works on any three-phase system voltage from 208-480V (a separate 120V... [See More]
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
from Time Mark Corporation
The Model 2644 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for abnormal conditions. The solid-state electronic sensing circuitry drives an internal DPDT relay, allowing the Model 2644 to operate two motor control circuits, or a control circuit and an alarm circuit. An... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
Voltage Band Relays provide protection to equipment that is required to operate within an upper & lower voltage limit. As long as the operating voltage remains within an OVER & UNDER voltage range, the internal relay stays energized. If the operating voltage falls outside this range, the... [See More]
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Protective Functions: Time Delay
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Voltage Sensing Range: 18 to 30
from Time Mark Corporation
The Model 265 3-Phase Monitor continuously monitors 3-phase Wye or Delta systems for phase loss, low voltage and phase reversal. When properly adjusted, the Model 265 Monitor will detect phase loss on a loaded motor even when regenerated voltage is present. The solid-state sensing circuit drives an... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
Over/Under Voltage Relays provide protection to equipment where an over or under voltage condition is potentially damaging. They are designed to operate when the operating voltage reaches a preset value and drop-out when the operating voltage drops to a level below the preset value. The pick-up... [See More]
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Protective Functions: Time Delay
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Voltage Sensing Range: 16 to 27
from Time Mark Corporation
The Model 2652 3-Phase Monitor is designed to protect motors, pumps, HVAC equipment, air compressors, etc. , by sensing phase loss, low voltage or phase reversal. With correct power applied, the DPDT output contacts transfer, and drop out when a fault condition or loss of power occurs. An adjustable... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Macromatic Industrial Controls, Inc.
Over/Under Voltage Relays provide protection to equipment where either an over or under voltage condition is potentially damaging. They are designed to operate when the operating voltage reaches a preset value and drop-out when the operating voltage drops to a level below the preset value. The... [See More]
- Features: Automatic Reset; Sealed Relay; Visual Indicator
- Protective Functions: Time Delay
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Voltage Sensing Range: 16 to 27
from Time Mark Corporation
The Model 158 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 158 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay (optional feature); Synchronous Check (Paralleling)
from Time Mark Corporation
The Model 252 3-Phase Monitor continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 252 will detect phase loss on a loaded motor even when regenerated voltage is present. The device consists of a solid-state voltage and phase-angle sensing circuit,... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Time Mark Corporation
The Model 2522 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 2522 will detect phase loss on a loaded motor even when regenerated voltage is present. This unit consists of a solid-state voltage and phase-angle sensing circuit, driving an... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Time Mark Corporation
The Model 257 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 257 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Time Mark Corporation
The Model 258 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 258 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a solid-state voltage and phase-angle sensing circuit, driving an... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Time Mark Corporation
The Model 2638 3-Phase Monitor combines a 3-phase monitor with a line voltage and phase sequence indicator. Like other Time Mark Monitors, the Model 2638 senses phase loss, phase reversal and low voltage. When power and phasing are correct, the internal relay energizes. LED indicators will show that... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Synchronous Check (Paralleling)
from Time Mark Corporation
The Model 18 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 18 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a microcontroller with a voltage and phase-angle sensing circuit,... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay
from Time Mark Corporation
The Model 19 continuously monitors 3-phase power lines for abnormal conditions. When properly adjusted, the Model 19 monitor will detect phase loss on a loaded motor even when regenerated voltage is present. This device consists of a microcontroller with a voltage and phase-angle sensing circuit,... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Undervoltage
- Protective Functions: Time Delay
from Time Mark Corporation
The Model 20 is a microcontroller-based universal 3-phase monitor for protecting 3-phase motors from abnormal power conditions. It can detect under voltage, over voltage, voltage unbalance, reverse phase, and single-phasing even when regenerated voltage is present. The Model 20 includes adjustable... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
from Time Mark Corporation
The Model 20 is a microcontroller-based universal 3-phase monitor for protecting 3-phase motors from abnormal power conditions. It can detect under voltage, over voltage, voltage unbalance, reverse phase, and single-phasing even when regenerated voltage is present. The Model 20 includes adjustable... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
from Time Mark Corporation
The Model 21 is a microcontroller-based universal 3-phase monitor for protecting 3-phase motors from abnormal power conditions. It can detect under voltage, over voltage, voltage unbalance, reverse phase, and single-phasing even when regenerated voltage is present. The Model 21 includes adjustable... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
from Time Mark Corporation
The Model 2002Y 3-Phase Voltage Unbalance Monitor is designed to continuously monitor a three-phase line with a neutral connection for unbalanced voltage conditions. This device will only energize the relay if an unbalance exists. Zero volts on all three phases is considered a balanced condition. [See More]
- Features: Automatic Reset; Visual Indicator
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Unbalance
- Voltage Sensing Range: 69 to 120
from Time Mark Corporation
The Model 200 3-Phase Voltage Unbalance Monitor is designed to continuously monitor a three-phase line for unbalanced voltage conditions. This device will only energize the relay if an unbalance exists. Zero volts on all three phases is considered a balanced condition. This allows the Model 200 to... [See More]
- Features: Automatic Reset; Visual Indicator
- Protective Functions: Synchronous Check (Paralleling)
- Power (Phase) Sensing: Unbalance
- Voltage Sensing Range: 102 to 138
from Time Mark Corporation
The Model 269 Over and Under 3-Phase Monitor continuously monitors 3-phase lines for high voltage, low voltage, phase loss or phase reversal. This device features a solid-state voltage and phase-angle sensing circuit, which drives a SPDT output relay. The Model 269 is independent of the system load,... [See More]
- Features: Automatic Reset; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Synchronous Check (Paralleling)