ETC-12Q Series vs Merlin Gerin STR-28D
STR-28D Trip/Control Unit
Do you need a repair or replacement of a Square D/Merlin Gerin/Schneider type STR-28D Protection Unit? ETC-12 has the solution. The STR-28D is obsolete and is known to trip under low load type scenario’s. Fortunately, there is a solution! The ETC-12Q Series Direct Replacement – Part Number 382TR69 , for the STR-28D is a plug and play device manufactured with the purpose of replacing the STR-28D as well as the STR-18M, STR-38S, STR-58U and STR-68U Trip Units. The ETC-12Q Series is a one-box fits all device in that the ETC-12Q Series will replace a STR-28D control unit on any breaker frame size. The ETC-12Q Series comes standard It is as easy as installing one of the original STR trip units when they were still available from the manufacturer.
The ETC-12 seamlessly plugs in where the STR-28D is removed from and plugs right back into the existing wiring harness. The ETC-12Q Series device uses the breaker’s [Click Here for List of Breakers the STR-28D Trip Unit Was Installed On] existing CT’s to eliminate the need for pesky rating plugs. Instead, through the simplified digital setup menu called the “etd” the operator can seamlessly set the breaker to trip anywhere from 25%-100% of the breaker’s existing CT ratings.
Most importantly, it’s PROVEN to get RID of Nuisance Tripping issues – permanently.
Click Here for ETC-12Q Series Technical Downloads and TCC Curves
Not only can the ETC-12Q Series be set up to replicate the time-current characteristics of any of the STR28D trip units, but it also offers the latest in control, selectivity, and Arc Flash Safety all packed into one, TRUSTED piece of state of the art circuit breaker life extension electronics.
All ETC-12Q Series trip units are capable of providing full LSIG protection and allow the user to defeat any undesired bands. This means greater interchangeability and the ability to do more with less spares.
The ETC-12Q also offers features that are simply NOT available on the older STR28D Control units.These features include a remote mountable display with digital three-phase ammeter, flashSAFE arc-flash reducing maintenance mode, MODBUS communications, and more.