Micrologic Trip Unit Power Supply
Internal Power Supply for Micrologic 5 and 6 Trip Units
The protection functions and the test functions of Micrologic 5 and 6 trip units operate with the current through the internal current transformers (CT).
When the load current is higher than 20% of the rated current In, the internal current supply provides the power supply for the full functioning of the Micrologic trip unit. This includes:
o The Micrologic display screen and LEDs
o The maintenance and diagnostic functions
To provide a power supply to the Micrologic 5 or 6 trip unit when the load is below 20% of the rated current In, and maintain the full functioning of the Micrologic trip unit, one of the following optional power supplies can be used:
o An external 24 Vdc power supply connected permanently to the Micrologic trip unit
o A power supply connected temporarily to the test port on the Micrologic trip unit:
o Pocket battery
o PC through USB maintenance interface
Each optional Micrologic power supply is described further.
Internal Power Supply for Micrologic 7 Trip Units with Integrated Earth-Leakage Protection
The protection functions and the test functions of Micrologic Vigi 7 trip units operate with the current through the internal current transformers (CT) and the internal voltage power supply. The Micrologic display screen, LEDs, and maintenance and protection functions are available whatever the load current.
External 24 Vdc Power Supply
The 24 Vdc power supply maintains the operation of the functions of the Micrologic trip unit in all circumstances, including in low load conditions (load below 20%), and when the circuit breaker is open and not energized.
The 24 Vdc power supply is essential to enable the Micrologic trip unit to display the trip cause.
The external 24 Vdc power supply is provided to the Micrologic trip unit once it is connected to another module in the ULP system (for example, IFM Modbus-SL interface for one circuit breaker).
When the Micrologic trip unit is not connected to a ULP module, it can be connected directly to an external 24 Vdc power supply by using the optional 24 Vdc supply terminal block.
One 24 Vdc power supply can be used to provide power to several Micrologic trip units or other ULP modules.
Recommended 24 Vdc Power Supplies
Available 24 Vdc power supplies include the range of Phaseo ABL8 power supplies and the AD power supplies. For more information, refer to the Masterpact MTZ Catalogue .
NOTE: For applications requiring an overvoltage category higher than II, install a surge arrester when using a 24 Vdc ABL8 power supply.
ULP Module Consumption
The following table lists the ULP module consumption:
For more information on power supplies, refer to ULP System (IEC Standard) - User Guide .
Pocket Battery
Check the charge level of the pocket battery by sliding the switch to the Test position. The green LED on the pocket battery lights up to indicate the battery status.
For more information on the pocket battery, refer to Compact NSX - Circuit Breakers and Switch-Disconnectors 100–630 A - User Guide .
USB Maintenance Interface
During periods of setting, commissioning, testing, and maintenance, the USB maintenance interface, connected to the test port on the Micrologic trip unit provides a temporary power supply.
For more information on the USB maintenance interface, refer to Compact NSX - Circuit Breakers and Switch-Disconnectors 100–630 A - User Guide .
DOCA0141EN-01
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- Español - Spanish (Castillian)
- Cybersecurity Safety Notice
- About the Book
- Pact Series Master Range
- ComPact NSX Range
- Operating the Circuit Breaker
- EcoStruxure Power Commission Software
- De-Energizing the Circuit Breaker
- Environmental Conditions
- Front Face Description
- Opening, Closing, and Resetting the Circuit Breaker
- Testing the Circuit Breaker
- Locking the Circuit Breaker
- Testing a Circuit Breaker With Direct Rotary Handle
- Locking a Circuit Breaker With Direct Rotary Handle
- Testing a Circuit Breaker With Extended Rotary Handle
- Locking a Circuit Breaker With Extended Rotary Handle
- Opening, Closing, and Resetting a Circuit Breaker With Motor Mechanism
- Opening, Closing, and Resetting Circuit Breakers With Communicating Motor Mechanism
- Plug-in Circuit Breaker
- Withdrawable Circuit Breaker
- Accessories
- Electrical Auxiliary Device Summary
- Indication Contacts
- Wireless Indication Auxiliary
- SDTAM Module ( MicroLogic 2 M and 6 E-M )
- 24 Vdc Power Supply Connector
- BSCM Breaker Status Control Module
- Insulated NSX Cord
- Control Auxiliaries
- PowerTag Energy M250/M630
- Applications
- Fault Currents in Electrical Distribution
- Protection Against Overcurrents in Electrical Distribution
- Protection Against Ground Faults
- Protection for Motor-Feeders
- Thermal-Magnetic Trip Unit Summary
- TM-D Thermal-Magnetic Trip Unit for 1P and 2P Circuit Breakers
- TM-D Thermal-Magnetic Trip Unit for 1P Circuit Breakers 250 A
- TM-D Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers up to 63 A
- TM-D Thermal-Magnetic Trip Unit for 3P and 4P Circuit Breakers from 80 A to 250 A
- TM-G Thermal-Magnetic Trip Unit
- MA Magnetic Trip Unit
- Earth-Leakage Protection by VigiPacT Add-on
Characteristics of MicroLogic Electronic Trip Units
- MicroLogic 2 Electronic Trip Units
- MicroLogic 4 Electronic Trip Units
- MicroLogic 1.3 M Electronic Trip Unit
- MicroLogic 2 M Electronic Trip Unit
- MicroLogic 2 G Electronic Trip Unit
- MicroLogic 2 AB and 4 AB Electronic Trip Units
- MicroLogic Maintenance Interfaces
- Pocket Battery
- Service Interface Connected to a PC
- Stand-Alone USB Maintenance Interface
- USB Maintenance Interface Connected to a PC
- Commissioning
- Maintaining the Circuit Breaker During Operation
- Responding to a Trip
- Troubleshooting
- ComPact NSX 100-250 - Distribution Protection Tripping Curves
- ComPact NSX 100-250 - Motor-Feeder Protection Tripping Curves
- ComPact NSX 400-630 - Distribution Protection Tripping Curves
- ComPact NSX 400-630 - Motor-Feeder Protection Tripping Curves
- ComPact NSX 100-630 - Reflex Tripping
- ComPact NSX 100-630 - Limitation Curves
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Introduction
Protection of the electrical distribution or specific applications
Measurement of instantaneous values and measurement of average values (demand) for electrical quantities
Kilowatt hour metering
Operational assistance such as peak demand, customized alarms, and operation counters
Communication
Identification
Identify the trip unit installed on the circuit breaker by using the four characters on the front face:
MicroLogic Trip Unit Families
MicroLogic 1 , 2 , and 4 without display screen
MicroLogic 5 , 6 , and 7 with display screen.
By using the adjustment dials
By additional settings on the keypad. Setting values are displayed on the screen
Through EcoStruxure Power Commission software.
For more information about the MicroLogic 5 , 6 , and 7 trip units, refer to DOCA0141EN , ComPact NSX MicroLogic 5/6/7 Electronic Trip Units - User Guide .
In Rating of MicroLogic Trip Units
The In rating (in amps) of a MicroLogic trip unit corresponds to the maximum value of the long-time protection ( Ir ) setting range for the trip unit. The setting range is indicated on the label on the front face of the trip unit (this label is visible on the front face of the ComPact NSX circuit breaker after the trip unit has been fitted).
Setting range: 100-250 A
In rating = 250 A
Distribution Trip Unit
The following figure and table define the protection functions for distribution-type MicroLogic trip units.
Thermal Memory
The thermal memory is used to simulate temperature build-up and cooling in conductors caused by current variations, according to a time constant. In the event of an overload, the trip units with a thermal memory memorize the build-up temperature caused by the current. Memorizing the build-up temperature leads to a reduction in the trip time.
For MicroLogic 2 and 4 trip units, the time constant is 15 minutes.
For MicroLogic 5 , 6 , and 7 trip units, the time constant is 20 minutes.
Motor Trip Units
The following figure and table define the protection functions for MicroLogic type M trip units.
Motor Trip Unit: Additional Protection
MicroLogic type M trip units (in particular MicroLogic 6 E-M ) also incorporate additional protection for the motor application. For more information, refer to DOCA0141EN , ComPact NSX MicroLogic 5/6/7 Electronic Trip Units - User Guide ..
Indication LEDs
Indication LEDs on the front of the trip unit indicate its operational state.
The LEDs and their meaning depend on the type of MicroLogic trip unit.
Above 15 A on a MicroLogic trip unit rated 40 A
Above 30 A on MicroLogic trip units rated > 40 A
The limit value is indicated on the front panel, above the Ready LED of the MicroLogic trip unit. NOTE: For the MicroLogic 4 and 7 trip units, the protection functions are supplied by a second power supply, in addition to the current transformer supply. The Ready LED blinks irrespective of the load, indicating that the standard protection functions are operational.
Install a 24 Vdc external power supply module which allows the trip unit to be monitored continuously, even when the circuit breaker is open. For more information, refer to LVPED217032EN , ComPact NSX & NSXm Catalogue .
Or, during maintenance visits, connect the pocket battery to monitor the trip unit.
MicroLogic trip units feature a test port specifically for maintenance actions .
Use the test port to:
Connect a pocket battery for local testing of the MicroLogic trip unit
Connect the Service Interface for testing, setting the MicroLogic trip unit, updating the MicroLogic firmware, or for installation diagnostics with EcoStruxure Power Commission software
For push-to-trip test or installation diagnostics with the USB maintenance interface stand-alone
For testing and installation diagnostics, setting the MicroLogic trip unit, updating the MicroLogic firmware with the USB maintenance interface connected to a PC
Interchangeability of MicroLogic Trip Units
No connections to make
No specific tools (for example, calibrated torque wrench)
Compatibility of trip units provided by mechanical cap
Torque limited screw provides correct torque
The simplicity of the replacement process means that it is easy to make the necessary adjustments as operation and maintenance processes evolve. NOTE: The screw head is accessible when the trip unit is installed, so the trip unit can still be removed. NOTE: On ComPact NSX circuit breakers with NA , R , HB1 , HB2 , and K breaking performances the trip units are not interchangeable.
Sealing the Protection
Seal the transparent cover on MicroLogic trip units to prevent modification of the protection.
On MicroLogic 5 , 6 , and 7 trip units, it is possible to use the keypad, with the cover sealed, to read the protection settings and measurements.
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trip unit MicroLogic 5.2 E for ComPact NSX 100/160/250 circuit breakers, electronic, rating 100A, 3 poles 3d
Recommended replacement(s), lv429095 is replaced by:.
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Test Port. Micrologic trip units feature a test port specifically for maintenance actions. Use the test port to: o Connect a pocket battery for local testing of the Micrologic trip unit. o Connect the USB maintenance interface for testing, setting the Micrologic trip unit, and for installation diagnostics. For more information, refer to Compact NSX - Circuit Breakers and Switch-Disconnectors ...
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For more information about the Micrologic 5, 6, and 7 trip units, refer to DOCA0141EN, Compact NSX Micrologic 5/6/7 Electronic Trip Units - User Guide. In Rating of Micrologic Trip Units. The In rating (in amps) of a Micrologic trip unit corresponds to the maximum value of the long-time protection (Ir) setting range for the trip unit.
Trip unit and communication module must use separate power supplies. Failure to follow these instructions can result in injury or equipment damage. The trip unit can be powered by: 24 Vdc external power supply (recommended). Over 150 V on the bottom circuit breaker terminals on two phases. Over 150 V on the top circuit breaker terminals with ...
Packing Units Unit Type of Package 1 PCE Number of Units in Package 1 1 Package 1 Height 9.5 cm Package 1 Width 11.0 cm Package 1 Length 15.0 cm Package 1 Weight 564.0 g Unit Type of Package 2 S03 Number of Units in Package 2 11 Package 2 Height 30.0 cm Package 2 Width 30.0 cm Package 2 Length 40.0 cm Package 2 Weight 6.646 kg Offer Sustainability
Micrologic 5.0 E for MASTERPACT NT/NW fixed. Local distributor code: 399352702. 47283. EAN Code: 3606480344763. Contact Sales Contact support Subscribe to the newsletter. arrow2_down. Sustainability. Green Premium TM label is Schneider Electric's commitment to delivering products with best-in-class environmental performance.
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To provide a power supply to the Micrologic 5 or 6 trip unit when the load is below 20% of the rated current In, and maintain the full functioning of the Micrologic trip unit, one of the following optional power supplies can be used: o An external 24 Vdc power supply connected permanently to the Micrologic trip unit. o A power supply connected ...
MicroLogic electronic trip units provide the following functions: Protection of the electrical distribution or specific applications. Measurement of instantaneous values and measurement of average values (demand) for electrical quantities. Kilowatt hour metering. Operational assistance such as peak demand, customized alarms, and operation counters.
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trip unit MicroLogic 5.2 E for ComPacT NSX 100/160/250 circuit breakers, electronic, rating 100A, 3 poles 3d. C1035E100. Important message: This product has been switched to new ComPacT range and is no longer commercialized. It will continue to be available in H1 2023 only limited to specific projects.