Three Phase AC380V 12P Built-in Bypass Electric Motor Air Conditioning Compressor/Heat Pump Soft Starter

Three Phase AC380V 12P Built-in Bypass Electric Motor Air Conditioning Compressor/Heat Pump Soft Starter provides an effective solution in reduction of start-up current, typically up to 70%, but still provides full startup torque for compressors and motors. Across the line starting of air-conditioner compressor or induction motors is accompanied by inrush currents up to 7-8 times higher than running current, and starting torque up to 3 times higher than running torque. The increased unnecessary torque results in sudden mechanical stress on the machine which leads to increased wear and higher service costs and reduced service life. Moreover, the high inrush current and current peaks may stress the power supply system to increased mains and generator loads which may lead to voltage dips results in breaking down of other valuable equipment or system function.

RJ-ASSU380P12 is an embedded design soft start controller. It regulates the start-up voltage of the compressor/motor intelligently to effectively reduce the inrush and surge current while starting-up, thus consume much less power from the public utility network or on-site AC power supply system but still provides full startup torque for compressors and motors.

RJ-ASSU380P12 effective limits the inrush current and so improves stability of the power supply and reduces transient voltage drops that may affect or break down other loads. This will eliminate the need of over dimension of the power supply system which results in reduce capital expenditure investment in power supply capacity, charge meter, circuit breaker and power wire line capacity etc..and extend the service life of the motor or compressor effectively.

RJ-ASSU380P12 is suitable for all three-phase air conditioner and heat pump and motor with horse power less than 12P.

Features

1. Limits inrush current
2. Eliminates current surges & voltage drops
3. Extends motor/compressor service life with built-in electronic overload protective relay
4. Integral bypass contactor reduces heat generation
5. Produces smoother starts and stops by controlling torque
7. Relieves shock and drive train stress on startup
8. Easy to wire and install and decreases equipment downtime
9. High reliability and long life

RJ-ASSU380P12 soft start controller adopts 250# copper inserts connection mode, the connection is convenient and reliable.

RJ-ASSU380P12 is integrated circuit breakers and bypass functions to make the circuit work more reliable and the space structure is more compact.

Connections

The terminal "A, B, C" is the input terminal of the three-phase power supply.

U, V, W are output terminals, connect with the load (only resistance or inductive load, can not receive capacitive load!!!)

L and N are control power terminals. When the AC220V is entered, the machine is turned on.

COM and NO are the normally opened contact of relay. When the input and output is out of phase or the power device of the soft starter is damaged, the relay will close and output fault signal.

Electric parameters

1. Applicable compressor power: 380V/12P/3PH ,190V/7HP/3PH (Rated current below 24A)

2. Operating Voltage Range: 340~460VAC

3. Control voltage: 220VAC

4. Rated operational current: 24A

5. Starting current: ≤80A/2.5S (Rated operating current within 3 times)

6. Surge current resistance: 250A/20mS

7. Depletion current: ≤50mA

8. Dissipation power: ＜10VA

9. Soft start time: ≤2.5s

10. Performance period: 45 thousand hours (within rated operating temperature range)

11. Number of starts: 100 thousand times (normal environment, the interval is not less than 3 minutes)

Environmental parameters

Operating temperature range: -20~+65℃

Flame retardation: Insulating materials have flame retardant properties

Relative humidity: 0—95%

Shock resistance: 200m/s2 11ms

Anti-knock: 10～55mm (double amplitude 1.5mm)

Rust-resisting property: Each metal component can withstand salt spray test for at least 24 hours

Size and weight

Size: 186*108*30mm (L*W*H)

Weight: about 0.66 kg

Terminal parameter

A, B, C

This is the three-phase power supply input terminals, the internal is three way SCR step-down circuit, input current capacity: no more than 80A/3s

U, V, W

Soft starter output terminals can only be connected to resistive or inductive load, not capacitive load. Output current capacity: no more than 80A/3s

L, N

Soft starter power supply, power: 3W

COM, NO

Switch output (relay contact), output: 5A/250VAC,5A/30DC

Function indicator lamp

LED1: Power indicator light. Light will be on as soon as the power is on.

LED2: Soft start indicator light. When the machine is soft start, the indicator lights up.

LED3: Running indicator light. When the machine runs normally, the indicator lights up, flicker at fault output.

LED4: Shutdown indicator light. When the machine is shut down, the indicator lights up immediately, and the indicator is extinguished after the shutdown is completed.

Shipment and Packaging