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Series: TVW

TVW Series – Voltage Monitor

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The TVW series is a three-phase voltage monitor that provides protection for motors and other sensitive loads. It continuously measures the voltage of each of the three phases using a microcomputer circuit design that senses under and overvoltage, voltage unbalance, phase loss, and phase reversal. Protection is provided even when regenerated voltages are present. This monitor includes a trip delay to prevent nuisance tripping and a restart delay to prevent short cycling after a momentary power outage.

Operation

Upon application of line voltage, the restart delay begins. The output is de-energized during restart delay. Under normal conditions, the output energizes after the restart delay. Undervoltage, overvoltage, and voltage unbalance must be sensed for the complete trip delay period before the output de-energizes. The restart delay begins as soon as the output de-energizes. If the restart delay is completed when a fault is corrected, the output energizes immediately. The output will not energize if a fault is sensed as the input voltage is applied. If the voltage selector is set between two voltage marks (between 220 and 230 V), the LED will flash red rapidly. The TVW provides fault protection at the lower of the two line voltages (220 V). Reset is automatic upon correction of a fault.

LED Operation

The LED flashes green during the restart delay, then glows green when the output energizes. It flashes red during the trip delay, then glows red when the output de-energizes. It flashes red/green if phase reversal is sensed. If the voltage selector knob is between settings, it rapidly flashes red.

Proprietary microcontroller-based circuitry
Compact design measures 2 in. (50.8 mm) square
LED indication
Encapsulated

Constant monitoring to protect against phase loss, phase reversal; over, under, and unbalanced voltage; short cycling
Perfect for OEM applications where cost, size, and ease of installation are important
Provides diagnostics of relay, fault, and time-delay status
Protects against shock, vibration, and humidity

TVW Parts

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	Part Number	Actions	Input Voltage (V)	Termination Type	Mount Method	Dimensions	Weight (kg)	Dielectric Breakdown	Humidity	Input AC Line Frequency (Hz)	Input Phase Sequence	Input Tolerance (%)	Input Type	Output Load Rating (VA)	Output Type	Overvoltage Reset Voltage (%)	Overvoltage Trip Voltage (%)	Phase Loss	Power Consumption	Reset Time (ms)	Response Time (ms)	Restart Delay Range	Restart Delay Tolerance (%)	Storage temperature (°C)	Surge Protection	Trip Delay Range	Trip Delay Tolerance (%)	Trip Delay vs Temperature	Type of Detection	Undervoltage Reset Voltage (%)	Undervoltage Trip Voltage (%)	Voltage Unbalance Reset (%)	Voltage Unbalance Trip Point (%)

Part Number	Actions	Input Voltage (V)	Termination Type	Dimensions	Weight (kg)	Dielectric Breakdown	Humidity	Input AC Line Frequency (Hz)	Input Phase Sequence	Input Tolerance (%)	Input Type	Output Load Rating (VA)	Output Type	Overvoltage Reset Voltage (%)	Overvoltage Trip Voltage (%)	Phase Loss	Power Consumption	Reset Time (ms)	Response Time (ms)	Restart Delay Range	Restart Delay Tolerance (%)	Surge Protection	Trip Delay Range	Trip Delay Tolerance (%)	Trip Delay vs Temperature	Type of Detection	Undervoltage Reset Voltage (%)	Undervoltage Trip Voltage (%)	Voltage Unbalance Reset (%)	Voltage Unbalance Trip Point (%)
Series: TVW - TVW Series – Voltage Monitor Series: TVW TVW Series – Voltage Monitor	Datasheet Request Sample View More	208 - 240 Vac	0.25 in. (6.3 mm) male quick connect terminals	2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)	0 Kg (kilogram)	≥1500 input to output terminals	95% non-condensing	50 - 100	A; B; C	-0.5	3-phase delta or WYE with no connection to neutral	10 A resistive @ 125 Vac; 5 A @ 250 Vac; 1/4 hp @ 125 Vac	Isolated SPDT	≅-3% of the trip voltage	109 - 113% of the adjusted line voltage	≥25%	≅2 W	Automatic	Phase loss: ≤200 ms; Phase reversal: ≤200 ms	5 s fixed	±15% or ±0.2 s whichever is greater	IEEE C62.41-1991 Level B	3 s fixed	±15% or ±0.1 s whichever is greater	Trip variation: ≤±2%	Voltage detection with delayed trip and automatic reset	≅+3% of the trip voltage	88 - 92% of the adjusted line voltage	≅-0.7% unbalance	10% fixed
Series: TVW - TVW Series – Voltage Monitor Series: TVW TVW Series – Voltage Monitor	Datasheet Request Sample View More	208 - 240 Vac	0.25 in. (6.3 mm) male quick connect terminals	2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)	0 Kg (kilogram)	≥1500 input to output terminals	95% non-condensing	50 - 100	A; B; C	-0.5	3-phase delta or WYE with no connection to neutral	10 A resistive @ 125 Vac; 5 A @ 250 Vac; 1/4 hp @ 125 Vac	Isolated SPDT	≅-3% of the trip voltage	109 - 113% of the adjusted line voltage	≥25%	≅2 W	Automatic	Phase loss: ≤200 ms; Phase reversal: ≤200 ms	1 m fixed	±15% or ±0.2 s whichever is greater	IEEE C62.41-1991 Level B	5 s fixed	±15% or ±0.1 s whichever is greater	Trip variation: ≤±2%	Voltage detection with delayed trip and automatic reset	≅+3% of the trip voltage	88 - 92% of the adjusted line voltage	≅-0.7% unbalance	7% fixed
Series: TVW - TVW Series – Voltage Monitor Series: TVW TVW Series – Voltage Monitor	Datasheet Request Sample View More	208; 220; 230; 240 Vac	0.25 in. (6.3 mm) male quick connect terminals	2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)	0 Kg (kilogram)	≥1500 input to output terminals	95% non-condensing	50 - 100	A; B; C	-0.5	3-phase delta or WYE with no connection to neutral	10 A resistive @ 125 Vac; 5 A @ 250 Vac; 1/4 hp @ 125 Vac	Isolated SPDT	≅-3% of the trip voltage	109 - 113% of the adjusted line voltage	≥25%	≅2 W	Automatic	Phase loss: ≤200 ms; Phase reversal: ≤200 ms	0.4 s fixed	±15% or ±0.2 s whichever is greater	IEEE C62.41-1991 Level B	10 s fixed	±15% or ±0.1 s whichever is greater	Trip variation: ≤±2%	Voltage detection with delayed trip and automatic reset	≅+3% of the trip voltage	88 - 92% of the adjusted line voltage	≅-0.7% unbalance	5% fixed