Rockwell Automation 140G-NTK-E12 LSIG and LSIG-MM Release - Manual (Page 3)

DIR 1000587R0002 (L3821)
(3)
1. Protection releases - General notes
The new series of 140G circuit breakers - are equipped with a new range of electronic relays.
These new relays are called LSIG and LSIG-MM.
The new protection releases integrate all the functions of their forerunners, adding new and interesting technical features that are useful for
satisfying every current and future system installation requirements.
A table can best illustrate the technical features and matching features of the three relays.
Key:
S : standard function/unit,
O : optional function/unit,
- : function/unit unavailable.
Notes:
1. : with communication module,
The main features and improvements of the relay are (depending on relay + modules combination):
1. High current reading accuracy (1.5%) and other numerous functions.
2. High-performance data logger with 8 analogue signals and 64 digital signals, which can be synchronized with hundreds of events/
situations as selected by user.
3. Continuous control of current sensor and trip coil connection (all relays).
4. Cause of trip is memorized even in self-powered mode (all relays).
5. Extended neutral selection.
6. Date and time in "real time" (all relays).
1.1 Safety notes
WARNING: this symbol gives information about operations, actions or circumstances that can cause injuries to the personnel, damage
to the unit or economic losses.
Read this manual carefully and completely.
The use of this device should be reserved for qualified and expert personnel only.
When in doubt about its safe usage, the unit must be put out of service to prevent any accidental use.
Safe usage is assumed as impossible when:
1. the unit shows visible signs of damage.
2. the unit does not function (for example with autotest or with trip test unit).
3. the unit has been damaged in transit.
Prior to operate and/or carry out replacements on the circuit breaker, this must be open.
Further, all connected power supplies must be disabled.
1.1.1 Notes for dielectric stiffness tests
Dielectric stiffness tests on releases' inputs and outputs are not permitted.
Function/Unit LSIG LSIG-MM
Current protections (L, S, I, G) S S
Additional protections (U, OT) - S
Temperature protection - S
Thermal memory - S
Local bus for separate auxiliary units S S
Cable communication (RS485) - S (1)
Data Logger - S
Maintenance mode - S
Communication module - O
Battery unit O S