The UG-ISOMETERS® UG140P monitor the insulation resistance of IT DC systems (isolated
power) to earth. They are preferably used in simple control voltage systems of limited extent, which contain no control devices and whose system leakage capacitances are no
greater than 1 μF.
Versions are available for all common DC voltages between 12 and 220 V.
Rated insulation voltage AC 250 V
Rated impulse withstand voltage/contamination level 4 kV/3
Voltage range
Nominal voltage range Un DC 12 V to 220 V*)
– 0.8…1.3 (220V: 0.8…1.1) x Un
Supply voltage US US = Un
Max. power consumption 2.7 VA
Response values
Response value Ran1 10 / 25 / 50 kΩ
Max. admissible system leakage capacitance Ce 1 μF
Measuring circuit
Measuring current Im max. 0.3 mA / 2.2 mA
Internal DC resistance Ri 40 kΩ / 100 kΩ
Contact circuit
Switching components 2 change-over contacts
Contact class acc. to DIN IEC 60255 part 0-20 IIB
Rated contact voltage AC 250 V / DC 300 V
Admissible number of operations 12000 cycles
Making capacity UC 5 A
Breaking capacity
AC 230 V and cos phi = 0.4 2 A
DC 220 V and L/R = 0.04 s 0.2 A
Tests of the Electromagnetic Compatibility (EMC) acc. to EC directives Yes
General data
Ambient temperature (during operation) -10° C to +50° C
Storage temperature range -20° C to +70° C
Climatic class acc. to IEC 60721 (except condensation and formation of ice) 3K5
Operating mode continuous operation
Mounting any position
Connection modular terminals
Cross sectional area of connecting cable, single wire 0.2…4 mm²
Cross sectional area of connecting cable, flexible 0.2…2.5 mm²
Protection class acc. to DIN EN 60529
Built-in components IP 30
Terminals / with terminal covers IP 20
Type of enclosure X140
Screw fixing with mounting plate
DIN rail mounting acc. to DIN EN 50022
Flammability class UL94V-0
Data sheet No. TDB102001
Weight max. 200 g
Shipping Port: China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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