STB3-125J Series RS485 AC or DC Miniature circuit breaker

Short Description:

1.STB3-125J circuit breaker, it can set automatically, and has under-voltage and over-voltage protection a variety of current protection.
2.2 model for choose: Without monitor type & with monitor type
3.RS485 communication, can be remote split / close and set parameters.
4.Maintenance can be remote lock, remote unlock,or with mechanical locking.
5.Under-voltage protection: can set the under-voltage action value, can also close the under-voltage function. When the under-voltage function is opened, there is pressure loss protection, that is, power trip, at this time the product cannot be manually closed.
6.The manual or automatic mode can be set, Real-time voltage can be read.
7.Under over-pressure (N-L: 440V) and without any damage.

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Product Detail

Product Tags

Feature

1. RS485 intelligent circuit breaker, Rated voltage is 230/400VAC or 24V/36V/48V/72V/100V DC.
2. It has a lot of functions such as high breaking force, monitor the control switch at any time, centralized computer /phone control, centralized control switch save more time and our money also liberate labor.
3. As well as the product can applicable to all kinds of mechanical and electrical equipment such as rail traffic,electric power,access control system,electric lighting and parking lot system etc.
4. You can choose automatic manual or computer remote control as start methods , our product is very high sensitive and easy operation.
5. Intelligent power breaker has overload and short-circuit protection and non- frequency starting of motor functions.
6. Operating status double light indication: normal voltage is on green, fault red light is on; manual status light flashes, lock red light and product is in switch state.
7. High mechanic life: product bodies are experiencing each hour 120 closing cycles10000 disturbance residence test operation still maintain good running state.
8. 380V four pole, 220V two poles and both of them neutral line in the distribution box system is connected to the left terminal N of the product.

Specification

Brand	STB3-125J(New model) STB4Z(DC model)
Connect type	RS485 communication
2 model for choose	Without monitor type & with monitor type
Material	PA6 flame retardant insulating housing
Optional number of poles	1p 2p 3p 4p
Rated voltage	AC230(1P 2P) AC400(3P 4P) ,DC24V/36V/48/72V/100V/110V/220V
Rated current	10A 32A 40A 50A 63A 80A 100A
Tripping type	Over current tripping
Frequency	50Hz
Instantaneous tripping curve	C
Rated-short circuit breaking capacity	6000A
Mechanical life	10000times
Electrical life	4000times
AC Range of over-voltage action value	AC240-300V
AC Over-voltage recovery value	AC220-275V
AC Under-voltage range of action value	AC140-190V
AC Under -voltage recovery value	AC170-220V
AC / DC Under-voltage operation delay	0.5-6s
DC over-voltage action value	DC12-90V
DC Over-voltage recovery value(Uvor)	DC12-85V
DC Under-voltage range of action value	DC9-70V
DC Under -voltage recovery value(Uvur)	DC12-65V
Wiring	Using clap-wired terminals