Solutions for medical technology

Medical technology

In hospitals and other fields of medicine, patients and their speedy recovery are the main concerns. However, even a brief power outage may jeopardize successful diagnosis and treatment and seriously endanger the health of patients. It is therefore hardly surprising when particularly high demands are placed on the reliability of power supplies.

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Insulation monitor RN 5897/010

• Insulation monitoring according to IEC/EN 61557-8
• With connection facility of an external coupling device RP 5898
for voltages up to 1000 V
• Trigger output for insulation fault locating system
• 2 separate adjustable response thresholds
(using e.g. for pre-Alarm and Alarm)
• Setting range of 1st response value (Pre-Alarm): 20 kΩ … 2 MΩ
• Setting range of 2nd response value (Alarm): 1 kΩ … 250 kΩ
• 2 changeover contacts für insulation failures-Pre-Alarm and -Alarm
• Energized or de-energized on trip can be selected for indicator relay
• Display for indication of measured value, device parameters and
device status
• Setting the maximum leakage capacitance to shorten the response time
• Automatic and manual device self-test
• Alarm storage selectable
• Protection against manipulation by sealable transparent cover
• External control input for combined Test-/Reset-button
• 3 wide voltage input for auxiliary voltage
• Width 52.5 mm

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Locating current injector RR 5886

• Insulation troubleshooting in DC, AC and mixed IT systems in connection with the insulation fault locator RR 5887 according to DIN EN 61557-9 (VDE 0413-9):2009 and DIN EN 61557-1 (VDE 0413-1)
• Insulation coordination according to IEC 60664-1
• External control via insulation monitor possible
• Positive and negative test current to monitor DC networks and networks with simultaneous alternating current and direct current portions present
• RS-485 bus connection to synchronise the test current analysis and optionally for the connection to the EDS measuring bus
• Control via insulation monitor via RS-485 bus or external control input possible
• Pushbutton for manual test current output
• Terminal connection for automatic test current output
• Status output of insulation fault detection via external switching output
• Width: 105 mm

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Insulation fault locator RR 5887

• Insulation troubleshooting in DC, AC and mixed IT systems in connection with the locating current injector RR 5886 according to DIN EN 61557-9 (VDE 0413-9):2009 and DIN EN 61557-1
(VDE 0413-1)
• Insulation coordination according to IEC 60664-1
• Connection of max. 4 or 8 differential current transformers depending on the design
• RS-485 bus connection to synchronise the test current output and optionally for the connection to the EDS measuring bus for reading insulation fault currents
• Status output of insulation fault detection via external switching output
• Memory characteristics adjustable via bridge Y1-Y2
• Collective signalling relay to output preliminary warning and alarm states
• Pushbutton for manual reset of alarm states as well as testing of differential current transformers and their calibration
• Terminal connection for the storage of alarm states
• Width: 105 mm

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Insulation monitor LK 5896

• Insulation monitoring according to IEC/EN 61557-8
• Detection of symmetric and asymmetric insulation faults
• Measuring circuits can be disconnected via control terminals, e.g.
for mains couplings
• 1 changeover contact each for prewarning and alarm
• 3. output relay for signalling wire break and device faults
• Prewarning threshold setting range: 20 kΩ ... 2 MΩ
• Alarm threshold setting range: 1 kΩ ... 250 kΩ
• Energized or de-energized on trip can be selected for output relay
• Setting the maximum leakage capacitance to shorten the response time
• Simple, clearly arranged adjustment of the device with screwdriver
• LED chain to indicate the current insulation resistance
• Display of active measuring circuits
• Automatic and manual device self-test
• Alarm storage selectable
• External test and reset pushbutton can be connected
• Width: 90 mm

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Residual current monitor, Type A, with integrated transformer IR 5882

• According to IEC/EN 62 020
• for AC and pulsating DC currants Type A to IEC/TR 60755
• 9 tripping values from 10 mA to 10 A or from 10 mA ... 30 A
• Frequency range 20 ... 2000 Hz
• Selection of manual or automatic reset
• With prewarning
• With test and reset button
• Broken wire detection
• Short reaction time
• With adjustable delay tv
• De-energized on trip
• LED indication for auxiliary supply and state of contact
• 2 x 1 changeover contact
• With sealable cover
• Devices available in 3 enclosure versions:
IR 5882: 63 mm deep with terminals near to the bottom to be
mounted in consumer units or industrial distribution
systems according to DIN 43 88
- width 105 mm
- with internal residual current transformer

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Residual current monitor, Type B RN 5883

• According to IEC/EN 62 020, VDE 0663
• For AC and DC systems Type B, according to IEC/TR 60755
• To detect earth faults in grounded voltage systems
• 4 setting ranges from 10 mA to 3 A
• Manual reset, with alarm and pre-warning
• With adjustable switching delay
• Energized or de-energized on trip
• LED indicator for operation, pre-alarm and alarm
• With test function
• LED-chain indicates fault current
• As option with analogue output
• Broken wire detection
• Protection against manipulation by sealable transparent cover
over setting switches
• Width: 52.5 mm

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Insulation monitor LK 5895

• Insulation monitoring according to IEC/EN 61557-8
• Detection of symmetric and asymmetric insulation faults
• Measuring circuits can be disconnected via control terminals, e.g.
for mains couplings
• 1 changeover contact each for prewarning and alarm
• Prewarning threshold setting range: 20 kΩ ... 2 MΩ
• Alarm threshold setting range: 1 kΩ ... 250 kΩ
• Energized or de-energized on trip can be selected for output relay
• Setting the maximum leakage capacitance to shorten the response time
• Simple, clearly arranged adjustment of the device with screwdriver
• LED chain to indicate the current insulation resistance
• Display of active measuring circuits
• Automatic and manual device self-test
• Alarm storage selectable
• External test and reset pushbutton can be connected
• Width 90 mm

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