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Siemens Siemens 3UB81234LW2

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Description

Industry Description

Esp200 catalog no 48atl3s00 solid state overload relay for motor protection 200- 600amp size a1, 3 phase with current transformer class 5...30, switchable direct mounting and stand-alone main circuit windows auxiliary circuit scrw terminal manual automatic reset

AD Description

Siemens 3UB81234LW2 Solid State Overload Relay, 1NO-1NC Contact

Specifications

Country of Origin
CZ
Length1
3.0000
Mounting_Type
DIN Rail
Number_Of_Poles
3
Special Features

  • 1NO-1NC contacts standard B600, R300 makes it easier for user to wire local contacts
  • 3-phase, B600/R300 contact
  • Ambient insensitive
  • Ambient insensitive-prevents nuisance tripping
  • Automatic reset is 3 min after tripping, allowing motor to cool down before re-start, if manual reset is selected, overload can be reset immediately
  • Automatic/manual/remote reset
  • Class 48, frame size A1
  • Conformally coated circuit board
  • Conformally coated circuit board resists against environmental conditions
  • FLA dial with wide Adjustment - 4:1 ratio
  • FLA dial with wide adjustment 4:1 ratio provides wide range, reduces inventory
  • Ground fault - trips 60% of motor current
  • Ground fault trips 60% of motor current provides optimum system protection of motors against high resistance short circuits or ground faults due to moisture, condensation, damage of insulation or any other reason
  • No heaters required
  • No heaters required-saves cost and eliminates time for installation of heaters
  • Phase loss protection - trips in less than 3 sec
  • Phase loss protection trips in less than 3 sec protects motor burn out and minimizes motor heating up
  • Phase unbalance - trips based on trip class selected
  • Phase unbalance trips based on trip class selected minimizes temperature rise of the motor on a asymmetrical 3-phase system
  • Remote reset as an alternative to the mechanical reset options, an electrical remote reset can be used by applying 24 VDC to terminals A3 and A4
  • Removable terminal block
  • Removable terminal block terminal block can be removed without removing wires saves time for replacements
  • Repeat accuracy <1%
  • Repeat accuracy <1% for more precise settings and reduced nuisance tripping
  • Self-powered - no outside source required
  • Self-powered no outside source required-reduce cost for external power supply
  • Self-protected in short circuit condition (when used with proper fuses or motor starter protector)
  • Self-protected in short circuit condition (when used with proper fuses or motor starter protector-unlike bimetal overloads, this eliminates replacement of the overload heaters after short circuit
  • Test button - tests electronics
  • Test button tests electronics tests the complete electronic functions including the trip mechanism increases up time
  • Thermal memory
  • Thermal memory prevents re-starting motor when it is still hot
  • Touch - safe terminals
  • Touch safe terminal protects against accidental touching of live circuits
  • Trip class - 5, 10, 20, or 30 selectable by DIP switches
  • Trip classes- 5, 10, 20 or 30 selectable by DIP switches field changeable reduces time and inventory suitable for light, normal and heavy starting conditions
  • Trip indicator - visible
  • Trip indicator visible-save time, faster to identify overload trip
  • Wide operating temperature range prevents nuisance tripping with temperature changes
Temperature_Rating
-25 to 60
Type
Solid State

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