TVW575S1M - TVW Series

Series: TVW
Questions? Contact Littelfuse Support
External overview image
Roll Over to Zoom
The TVW Series provides protection for motors and other sensitive loads. Continuously measures the voltage of each of the three phases using a microcontroller circuit design that senses under and overvoltage, voltage unbalance, phase loss, and phase reversal. Protection is provided even when regenerated voltages are present. Includes a trip delay to prevent nuisance tripping and a restart delay to prevent short cycling after a momentary power outage.

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 (i.e. between 220 and 230V), the LED will flash red rapidly. The TVW provides fault protection at the lower of the two line voltages (i.e. 220V).
Reset: Reset is automatic upon correction of a fault.

Property (Mouseover for details) Value
Input Voltage (V) 208 - 240 Vac
Input Tolerance (%) -0.5
Input Type 3-phase delta or WYE with no connection to neutral
Input AC Line Frequency (Hz) 50 - 100
Input Phase Sequence A; B; C
Output Type Isolated SPDT
Output Load Rating (VA) 10 A resistive @ 125 Vac; 5 A @ 250 Vac; 1/4 hp @ 125 Vac
Reset Time (ms) Automatic
Response Time (ms) Phase loss: ≤200 ms; Phase reversal: ≤200 ms
Restart Delay Range 1 m fixed
Restart Delay Tolerance (%) ±15% or ±0.2 s whichever is greater
Trip Delay Range 5 s fixed
Trip Delay Tolerance (%) ±15% or ±0.1 s whichever is greater
Trip Delay vs Temperature Trip variation: ≤±2%
Overvoltage Trip Voltage (%) 109 - 113% of the adjusted line voltage
Overvoltage Reset Voltage (%) ≅-3% of the trip voltage
Undervoltage Trip Voltage 88 - 92% of the adjusted line voltage
Undervoltage Reset Voltage (%) ≅+3% of the trip voltage
Voltage Unbalance Trip Point (%) 7% fixed
Voltage Unbalance Reset (%) ≅-0.7% unbalance
Phase Loss ≥25%
Power Consumption ≅2 W
Dielectric Breakdown ≥1500 input to output terminals
Surge Protection IEEE C62.41-1991 Level B
Type of Detection Voltage detection with delayed trip and automatic reset
Termination Type 0.25 in. (6.3 mm) male quick connect terminals
Mounting Method Surface mount with one #8 (M5 x 0.8) screw
Operating Temperature -40° to 55°C (-40° to 131°F)
Storage Temperature (F/C) -40° to 85°C (-40° to 185°F)
Humidity 95% non-condensing
Dimensions 2 H x 2 W x 1.25 D in. (50.8 x 50.8 x 31.8 mm)
Weight (lbs/g) 0 Kg
Check Stock Yes
To request product environmental information, please complete the Product Environmental Information Request Form.