Siemens 3UB81234JW2 Overload Relay
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Siemens 3UB81234JW2 Overload Relay
Siemens 3UB81234JW2 Overload Relay
Part #:3UB81234JW2
SKU #: 2198999
Key Features
Part #:3UB81234JW2
SKU #: 2198999
Brand: Siemens
Amperage Rating: 100 to 300, 100 to 300 A
Contact Form: 1NC-1NO, 1NO-1NC
Contact Rating: 300 A at 600 VAC
Dimensions: 2.12 in H
Number of Poles: 3
- 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
- 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 minimizes temperature rise of the motor on a asymmetrical 3-phase system
- 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
- Trip indicator visible-save time, faster to identify overload trip
- Ambient insensitive-prevents nuisance tripping
- No heaters required-saves cost and eliminates time for installation of heaters
- Self-powered no outside source required-reduce cost for external power supply
- FLA dial with wide adjustment 4:1 ratio provides wide range, reduces inventory
- 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 tests the complete electronic functions including the trip mechanism increases up time
- Thermal memory prevents re-starting motor when it is still hot
- Conformally coated circuit board resists against environmental conditions
- 1NO-1NC contacts standard B600, R300 makes it easier for user to wire local contacts
- Wide operating temperature range prevents nuisance tripping with temperature changes
- Repeat accuracy <1% for more precise settings and reduced nuisance tripping
- Removable terminal block terminal block can be removed without removing wires saves time for replacements
- 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
- 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
- Touch safe terminal protects against accidental touching of live circuits
Siemens 3UB81234JW2 Overload Relay
Siemens Overload Relay, 3-Phase Solid State, Series: ESP200, 100 to 300 A, 1NC-1NO Contact Form, Direct/Stand Alone Mounting, Screw Terminal, -25 to 65 deg C, 2.12 in H Dimensions
Additional Description: SIEM-3UB81234JW2 OVERLOAD RELAY,100-300AMPS,3PH,ESP200
Catalog Description: Esp200 catalog no 48atj3s00 solid state overload relay for motor protection 100to 300 amp 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