Programmable Time Delay 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 Perfect Switch, LLC
Programmable Autonomous Relays have an integrated factory programmable microcontroller with options like timing features, delays, voltage sensing turn-on or turn-off, and logic feedback for easy system integration. Commonly used as a traditional Low Voltage Disconnect, the POWER-GATE Autonomous... [See More]
- Features: Programmable Time Delay; Sealed Relay; Visual Indicator; Programmable
- Current Sensitive Relay: Over-Current Protection; Undercurrent
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay
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 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 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 Time Mark Corporation
Model 25 True RMS 3-Phase Monitor has a display that shows the voltage with an accuracy of +/- 0.5%. The display is updated every second and re-initialized every 30 seconds. Model 25 has a rotary encoder with switch on the unit. By pressing the encoder switch for more than 5 seconds, the unit will... [See More]
- Features: Programmable Time Delay; Visual Indicator
- Power (Phase) Sensing: Phase Failure (Loss); Reversal; Unbalance
- Voltage Sensitive Relay: Overvoltage Protection; Undervoltage
- Protective Functions: Time Delay