ST31M Series

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넳 넲
is the core component of intelligent protection for supporting CM1 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.

Model

ST31MSeries

use

is the core component of intelligent protection for supporting CM1 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

■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;

Shelf Class:100A,250A,400-630A,800A,1600A

Rated current:32A ~ 1600A

Complies with Standard:

GB14048.2 , IEC60947, GB/T22710

Product Details

ꄴThe previous one： ST31M3 Series
ꄲThe latter one： ST31CS Series

Products

Pre-assembled DC traction solution for surface mining transportation

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