What does LSI mean on a breaker?
LSI — A combination of adjustable trip functions including long-time ampere rating, long-time delay, short-time pickup, short-time delay and defeatable instantaneous pickup.
What is a MasterPact breaker?
MasterPact NW is a comprehensive range of air circuit breakers designed to protect electrical systems from damage caused by overloads, short circuits and equipment ground faults. Embedding MicroLogic control units, it contributes to safety and energy efficiency.
What is MasterPact MTZ?
MasterPact MTZ is a comprehensive range of air circuit breakers, to protect from damage caused by overloads, short-circuits or insulation faults. MasterPact MTZ embeds advanced digital technologies, through MicroLogic X control units, and thus contributes to maximum maintenance and energy efficiencies.
What is LSI and LSIG?
G = Ground Fault (equipment ground fault protection) Therefore, LSIG = Long-time + Short-time + Instantaneous + Equipment Ground-fault Protection.
What is an inverse time breaker?
Inverse time tripping is a characteristic of circuit breakers in which the breaker trips in more time with lower overcurrent, and less time with higher overcurrent. For the US, Article 100 of the National Electric Code defines it as follows: “Inverse Time (as applied to circuit breakers).
What is air circuit breakers?
Air circuit breaker is a circuit breaker for the purpose of protecting low voltage circuit, mainly for energizing and cutting off high current. It is used as the master of a factory and building, and as a main circuit breaker of a ship, and it is possible to attach various accessories according to the purpose.
What is a trip unit?
A trip unit is the part of a circuit breaker that opens the circuit in the event of a thermal overload, short circuit or ground fault. An open circuit will not conduct electricity because either air, or some other insulator has stopped or broken the flow of current in the loop.
What does an ERMS switch do?
The ERMS function is used to reduce protection settings so that the circuit breaker trips as soon as possible when an arc fault occurs. Minimizing the time between fault and trip helps to reduce the risk of injury when qualified electrical personnel are near energized equipment.
What does LSIG stand for?
Background. LSIG (long time, short time, instantaneous, ground) -equipped circuit breakers are often required by. code in the application of larger UPS systems.
Is there a test drive for sinamics g120?
Siemens Try Before You Buy program allows you to test drive SINAMICS G120 drives – to install one or more in your applications before you commit to purchasing.
How does the sinamics g120 intelligent operator panel work?
The mounted IOP-2 Intelligent Operator Panel and its remote handheld version allow fast local setup, fault diagnostics and intuitive operation of SINAMICS G120 drive series and simplifies the adjustment of settings during operation. It features an intuitive central multifunctional sensor control wheel.
What kind of wall mount is sinamics g120?
SINAMICS G120 wall mount kits allow simple, direct mounting of G120 modular and G120C compact PM240-2 drives. Designed for use with the latest SINAMICS drives, these low-cost kits are easy-to-install and conform to NEMA 1 and UL Type 1 standards.
What are the sinamics g120 closed loop vector drives?
The SINAMICS G120 family of closed-loop vector drives offers high levels of integrated safety, energy savings, and network connectivity.