ST570B3 series motor protection controller

ST570B3-1
넳 넲
This series of products is suitable for rated frequency 50/60Hz, rated voltage to AC380V/AC400V low-voltage motor applications. This product integrates protection, measurement, control, management and communication, and cooperates with contactors, soft starters, frequency converters, circuit breakers, etc. to realize a variety of starting control schemes for motors and ensure safe operation of motors. It is an intelligent MCC or The best choice for the terminal unit of the production DCS system.

  1. technical parameters
    1. environmental conditions

Operating temperature: -10 ~ +55 ℃ Storage temperature: -25 ~ +70 ℃

relative humidity: 5 ~ 95% (inside the product should neither be condensed nor frozen) atmospheric pressure: 80 ~ 106kPa

altitude: <3000m pollution level: 3

protection grade: IP20

    1. Rated parameters

(1), auxiliary power supply

□power supply range: 85 ~ 264VAC / 90 ~ 300VDC

      • product power consumption:<5W/10VA,surge current20A

(2), current loop

□Rated parameters:1(0.5~ 1A), 5 (1~ 5A),10(2 ~10A),25 (5~ 25A), 100(20~100A),

160(32 ~ 160A), 400(80 ~ 400A)

When the rated current of the motor is greater than 400A, the company can choose the external current transformer: 500(150A ~ 500A), 820

(250A ~ 820A)

  • overload capacity:2times the rated current, continuous operation;

10s operation at 10 times of rated current;

is allowed to operate for 1s at 40 times of the rated current.

  • power consumption: none
  • Ratedfrequencyrate: 50/60Hz

(3), voltage circuit

  • Rated parameters:380V
  • overload capacity:1.2times rated voltage, continuous operation;

1.4 times the rated voltage, allowing 10s operation.

  • power consumption: <1VA/phase
  • Ratedfrequencyrate: 50/60Hz

(4), zero sequence current loop

  • Rated parameters:1,5,30
  • overload capacity:2times rated current, continuous operation;

10 times of rated current, allowed to operate for 10s;

is allowed to operate for 1s at 40 times of the rated current.

  • power consumption: none
  • Ratedfrequencyrate: 50/60Hz

(5), switching value output circuit

□contactstructureinto: R6-normally closed/normally open

R1 ----------------------- Normally Closed

R2, R3, R5 ---------------------- normally open

  • Rated load:7A 250VAC/30VDCresistance
  • action time: <10ms
  • reset time: <5ms
  • contact resistance: <100mΩ

(6), switching value input circuit

  • isolation mode: optical isolation
  • power supply mode: built-in high power current source, dry contact input
  • response time: ≤50ms

(7), analog output circuit

  • output form:4 ~ 20mA
  • transmission quantity:threephaseelectricitypressure, threephase powerflow,leakageelectricityelectricityflow,haveworkpower
  • Load Resistance: <600 Ω
  • response time:30ms

Product Details

ꄴThe previous one： ST570L Series Motor Protection Controller
ꄲThe latter one： ST570LF series motor protection controller

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