ST31M3 Series

5
4
3
2
넳 넲
is an intelligent protection core component for supporting CM1 and CM3 series intelligent molded case circuit breakers. It is suitable for power distribution protection to protect power distribution lines and power supply equipment from overload, short circuit, grounding and other faults.

Main Functions

protection function

■ overload long delay protection

■Short-circuit short-delay protection

■short-circuit instantaneous protection

■grounding protection

■overload pre-alarm

Accessibility

■fault trip

■ Overload pre-alarm

■ Earthing alarm

■ Overload alarm does not trip

■Remote shunt

CommunicationsFunction

■MODBUSAgreement

User Interface

■Power Indication

■ Pre-alarm indication

■ Tripping function test port

■USBcommunication port

■Accessory communication port

■ M type: the parameters are set by the coding switch, which is convenient and intuitive.

■ H type: the parameters are set by the handheld programmer, and the measurement accuracy is calibrated; historical fault information can also be queried.

Rated parameters

Operating power:

transformer,When the three-phase current is greater than 0.2In and the single-phase current is greater than 0.4In, the controller can work normally;

Shell Frame Class:100A,250A,400-630A,800A

Rated current:32A ~ 800A

Conforms to Standard:

GB14048.2 , IEC60947, GB/T22710

Product Details

ꄴThe previous one： ST130 Series
ꄲThe latter one： ST31M Series

Products

Pre-assembled DC traction solution for surface mining transportation

ꁸ