MicroLogic Trip Unit Description - ComPacT NS MicroLogic Trip Unit

MicroLogic 2.0 Trip Unit

Top fastener
Lead seal fixture for protective cover
Connection with circuit breaker
Bottom fastener
Protective cover
Cover opening point
Long-time rating plug
Screw for long-time rating plug
Long-time current setting Ir
Long-time time delay tr
Short-time pickup Isd
QR code on protective cover, to access product information
Test connector
Overload indication LED

MicroLogic 5.0 Trip Unit

Top fastener
Lead seal fixture for protective cover
Connection with circuit breaker
Bottom fastener
Protective cover
Cover opening point
Long-time rating plug
Screw for long-time rating plug
Long-time current setting Ir
Long-time time delay tr
Short-time pickup Isd
Short-time time delay tsd
Instantaneous pickup Ii
QR code on protective cover, to access product information
Test connector
Overload indication LED

MicroLogic 6.0 Trip Unit

Top fastener
Terminal block for external connections
Housing for battery
Lead seal fixture for protective cover
Connection with circuit breaker
Bottom fastener
Protective cover
Cover opening point
Long-time rating plug
Screw for long-time rating plug
Long-time current setting Ir
Long-time time delay tr
Short-time pickup Isd
Short-time time delay tsd
Ground-fault pickup Ig
Ground-fault time delay tg
Test connector
Test button for ground-fault protection
Instantaneous pickup Ii
Overload indication LED
QR code on protective cover, to access product information
Test/Reset button
Auto-protection trip cause indication LED
Ground-fault trip cause indication LED
Short-time or instantaneous trip cause indication LED
Long-time trip cause indication LED

Overload Indication LED

LED	Description
	Overload alarm: the load exceeds 105% of the Ir setting of the long-time protection.

QR Code

When the QR code on the protective cover of a MicroLogic trip unit is scanned with a smartphone running a QR code reader and connected to the Internet, the Go2SE landing page is displayed. The landing page displays some information about the device and a list of menus.

Sensor Plug

The protection ranges depend on the rated current In, defined by the sensor plug present below the MicroLogic trip unit.

Trip Cause Indication LED (MicroLogic 6.0)

LED	Description
	Trip due to long-time protection
	Trip due to short-time protection or instantaneous protection
	Trip due to ground-fault protection
	Trip due to auto-protection

When activated, a LED remains ON until it is locally reset.

NOTE:

A number of simultaneous causes may result in tripping. The LED signalling the last trip cause chronologically is the only one to remain ON.
The battery maintains the trip cause indications. If there are no indications, check the battery.

Test Button for Ground-Fault Protection (MicroLogic 6.0)

The test button is used to test the ground-fault protection for MicroLogic 6.0 trip unit.

Test/Reset Button (MicroLogic 6.0)

Use the Test/Reset button to:

Reset the trip cause indications:
1. Determine why the circuit breaker tripped. The trip cause indication is maintained until it is reset on the trip unit.
2. Press the Test/Reset button.
3. Check the parameter settings of the trip unit.
Check the battery: press the Test/Reset button to check the luminance of the trip cause indication LEDs. If the LEDs are dim, or not lit, change the battery.