Littelfuse

WVM811AH

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Opis

See datasheet for operation details.
Part Number
WVM811AH
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Specifications

Input Voltage (V)
355 to 425VAC
Input Type
3-phase delta or wye with no connection to neutral
Input AC Line Frequency (Hz)
50/60Hz
Output Type
Electromechanical relay
Output Form
Isolated SPDT
Output Load Rating (VA)
10A resistive @ 250VAC; 6A inductive (0.4pF) @ 250VAC
Random Start Delay
3 - 15s
Response Time (ms)
Phase loss: ≤200ms
Restart Delay Range
0.25 - 64m; automatic restart upon fault trip
Restart Delay Tolerance (%)
±15%
Trip Delay Range
Adjustable from 0.25 - 30s
Trip Delay Tolerance (%)
≥15%
Overvoltage Trip Voltage (%)
109 - 113% of the adjusted line voltage
Overvoltage Reset Voltage (%)
-2% of the trip voltage
Undervoltage Trip Voltage
88 - 92% of the adjusted line voltage
Undervoltage Reset Voltage (%)
+2% of the trip voltage
Voltage Unbalance Trip Point (%)
Adjustable from 2 - 10%
Phase Loss
≥15% unbalance
Indication
6 LEDs provide existing status and memory readout
Isolation Voltage (V)
≥2500V RMS input to output
Surge Protection
IEEE C62.41-1991 Level B
Memory Type
Nonvolatile RAM
Memory Capacity
Stores last 10 faults
Life
Mechanical - 1 x 107
Termination Type
Screw terminals with captive wire clamps for up to #12 AWG (3.2mm2) wire
Mounting Method
Suface mount with 2 or 4 #8 (M4 x 0.7) screws
Operating Temperature
-40° to 65°C (-40°F to 149°F)
Storage Temperature (F/C)
-40° to 85°C (-40°F to 185°F)
Dimensions
6.90 x 4.40 x 2.40 in. (175.3 x 111.8 x 61.0mm)
Weight (lbs/g)
≅25oz (709g)

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