3-Phase Voltage Monitors
Model 102A
It is an auto-ranging voltage monitor designed to protect 3-phase motors regardless of size. It is used on 190-480VAC, 50 or 60Hz motors to prevent damage caused by incoming power problems.
Model 102LG
The Model 102LG is a line to ground voltage monitor. It is used on 190-480VAC, 50 to 60Hz motors to prevent damage caused by low voltage conditions from line to ground.
Model 201A
The 201A is an octal-base, plug-in style voltage monitor used to protect 3-phase, 190-480VAC, 50/60Hz motors against low voltage, high voltage (optional), single-phasing, phase reversal, voltage unbalance.
Model 202
The 202 voltage monitor protects 3-phase, 190-480VAC, 50/60Hz motors from single-phasing, high and low voltage, voltage unbalance and phase reversal. The 202 has a variable restart delay.
Model 250A
The 250A protects 3-phase, 190-480VAC, 50/60Hz motors against damage caused by low voltage, high voltage, single-phasing, phase reversal, and voltage unbalance. The 250 has a variable restart delay.
Model 350
The 350 protects 3-phase motors against low voltage, high voltage (optional), single-phasing, phase reversal, and voltage unbalance. The 480V and 575V versions have a high voltage relay capable of switching 480V or 575V controls, eliminating the need for control power transformers.
Model 355
The 355 protects 3-phase motors from single-phasing, low and high voltage, phase reversal and voltage unbalance. The 480V and 575V versions have a high voltage SPDT relay capable of switching 480V or 575V controls. The 355 has an adjustable voltage unbalance trip point, and variable restart and trip delays.
Model 455
The 455 provides both line and load side monitoring. It protects 3-phase, 190-480VAC motors from contact failure, low and high voltage, single-phasing, voltage unbalance, phase reversal and rapid cycling. The 455 has variable unbalance trip point, restart delay and trip delay settings.
Model 460
The 460 protects 3-phase, 190-480VAC motors from low and high voltage, voltage unbalance, single-phasing, phase reversal and rapid cycling. The 460 has variable unbalance trip point, restart delay and trip delay settings.
The Model 460-14 and 460-15
The Models 460-14 and 460-15 automatically sense whether they are connected to a 190-240V 60Hz system, a 440-480V 60Hz system, or a 380-416V 50Hz system. An adjustment is provided to set the nominal line voltage from 190-240 or 380-480VAC.
Model 460-ST
The 460-ST 3-phase voltage monitor is used to control shunt trip circuits. It protects 190-480VAC motors from low and high voltage, voltage unbalance, single-phasing, phase reversal and rapid cycling. The 460-St has an adjustable trip delay.
Model 460-VBM
The 460-VBM voltage band monitor has adjustable high and low voltage trip settings and variable trip and restart delays. It protects 3-phase, 190-480VAC motors from low and high voltage, voltage unbalance, single-phasing, phase reversal and rapid cycling.
Model 460-VBM-L
The 460-VBM-L voltage band monitor has adjustable high and low voltage trip settings. It protects 3-phase, 190-480VAC motors from low and high voltage and rapid- cycling.
Model 601
The 601 is a fully-programmable 3-phase, 190-480VAC voltage monitor. It protects against low and high voltage, low and high frequency, voltage unbalance, phase reversal, single-phasing, rapid cycling and contact failure. The 601 has a number of different trip delay and restart delay settings. Available options: 575VAC, high voltage relay
Single-Phase Voltage Monitors
Model 35
This voltage monitor is used with single-phase motors on fans, compressors, air conditioners, heat pumps, well pumps, sump pumps and computers to protect against low and high voltage conditions.
Model 45
It protects against unexpected starts when using single-phase motors such as table saws, drill presses, grinders, sanders and other wood working tools. The Model 45 also protects against low and high voltage conditions.
Model 50R
The 50R single-phase voltage monitor protects 95-480VAC range motors from low voltage. Additional options: high voltage detection, variable restart delay, variable trip delay, DPDT output.
Model 201-XXX-SP
The Model 201-XXX-SP octal-base, single-phase voltage monitor protects 95-480VAC range motors from low voltage. Additional options: high voltage detection, 2 pin-out styles.
Model 202-XXX-SP
The Model 202-XXX-SP single-phase voltage monitor protects 95-480VAC motors from low and high voltage and rapid cycling and has an adjustable restart delay.
Model 460-XXX-SP
The Model 460-XXX-SP single-phase voltage monitor protects 95-240VAC motors from low and high voltage and has an adjustable restart delay. It is DIN rail or surface mountable.
3-Phase Current Monitors
Model 520CP
The Model 520CP is a fully-programmable, microcontroller-based, current-sensing device designed to monitor 3-phase pumps or systems with ramp-up times of 4 seconds or less.
Model 520CS
The Model 520CS is a fully programmable, microcontroller-based, current-sensing device designed to monitor 3-phase pumps. Unlike the Model 520CP which is designed to work with motors that have ramp-up times of 4 seconds or less, the Model 520CS has a programmable motor acceleration time that can be set from 0-50 seconds.
Model 520RD
The Model 520RD is a remote display for the Model 520CP-RJ or the Model 520CS-RJ. The Model 520RD mounts directly on the motor control panel door. It can be ordered in flush mount or surface mount packaging.
Single-Phase Current Monitors
Model CP-5
The Model CP-5 is an undercurrent monitor designed to monitor one leg of a 3-phase system. It is commonly used as a tower monitor on center pivot irrigation systems to detect stalled or jammed towers to prevent over-watering.
Model 77C
The Model 77C is a fully-programmable electronic overload relay designed to monitor single-phase systems. Applications include conveyor systems, HVAC equipment, pumps, saws, grinders, and other single-phase electric motors.
