Low Price Built in Bypass Soft Starter Motor 45kw Suppliers

• Customization: Available
• Task: Program
• Structure: Combination
• Mathematical Model: Linear
• Signal: Continuous
• Function: Automatic Control, Protection, Monitoring, Measurement
• Certification: RoHS, CCC, ISO: 9001, CE
• Condition: New
• Customized: Customized
• Material: All Refractory Materials
• Transport Package: Cartoon/Wooden Case
• Specification: PQZR8-SN
• Trademark: PQUAN
• Origin: Wenzhou China
• HS Code: 8504401990
• Production Capacity: 1000PCS/Week
• Package Size: 25.00cm * 23.50cm * 36.50cm
• Package Gross Weight: 5.800kg

Product Description

Product Selection Guidance

PQUAN TECHNOLOGY MANUFACTURER OF SOFT STARTER
Type	On-Line	External Bypass	Integrated Built-in Bypass
Features	Continuously regulates voltage via thyristors ever after startup	Uses an extra contactor to bypass thyristors after startup	Integrates the bypass contactor into the unit, saving panel space
Applications	Frequent starting and stopping(e.g. crusher, compressor)	Simple start/stop, stabilization of loads (e.g. pumps, fans)	Where space is limited or quick installation is required
Efficiency	Lower efficiency due to continuous control.	Higher efficiency after bypassing.	Higher efficiency after bypassing.
Heat Dissipation	Generates more heat during operation	Less heat after bypassing.	Less heat after bypassing.
Series	PQZR8-SZ	PQZR8-SP	PQZR8-SN
Cost	Budget-friendly	Cost-effective	Cost-effective
Rated Power	11-630 kW	11-630kW	11-400kW
Rated Voltage	380V	380V	380V

Product Description

Built in bypass Soft Starter

The PQZR8-SN soft starter, featuring an integrated bypass contactor, offers significant performance enhancements compared to standard AC contactors, including a 3x increase in performance, 2.6x improved heat dissipation, 25% greater safety, 20% energy savings, and a service life of up to 100,000 cycles. Its compact design is ideal for space-constrained motor control centers, simplifying installation. 

This built-in bypass soft starter, with advanced control and protection features and closed-loop control for stabilized soft start torque, provides a user-friendly, efficient, and reliable motor start and run solution. Equipped with three internal relays, it eliminates the need for external contactors. Please specify your requirement for this built-in contactor model when ordering, as the standard version is an economic type

Operation Interface

User-Friendly Interface: 

Enjoy a simple and clear operation interface with an LCD display, making it easy to monitor motor status and adjust settings.

Enhanced Display & Stable Power:

The wide-screen display is complemented by a switching power supply, ensuring the cooling fan maintains a constant speed for optimal performance.

Robust Protection:

Benefit from built-in thyristor short-circuit protection and adjustable start overcurrent time for enhanced safety and motor longevity.

Automated Operation:

Features like automatic start-up on power restoration and a timed boot function provide greater convenience and control.

Sales Highlight Point

Optimized Structure

User-Friendly Interface

Impeccable Motor Protection

Our product features a unique modular design with a convenient top-entry, bottom-exit connection mode. We've incorporated advanced anti-jamming techniques and a rational control panel layout, alongside an I2C bus keyboard for a compact footprint. This optimized structure significantly streamlines integration and system assembly.

Our system offers a rich and intuitive keyboard display, making operation straightforward. You can easily set and modify start, stop, operation, and protection parameters to suit various loads, with real-time display of all working states. The interface also allows for convenient inquiry of per-phase operating current, machine temperature, and power frequency.

Our system offers online operation with real-time monitoring of working voltage, current, and temperature, providing comprehensive motor protection. You can control the moderate protection threshold to ensure your motor operates with maximum stability.

Optimized Starting for Diverse Loads

 High Technical Performance

High Reliability

Our system offers a wide range of starting modes and convenient parameter settings, allowing you to easily achieve the best possible starting performance for your motor, regardless of the load type.

Our system delivers consistent and accurate operating performance without the need for circuit parameter adjustments. This is all thanks to its high-performance microprocessor and powerful software support functions, which fully simplify and optimize the control circuit.

We ensure high reliability in our products by rigorously screening all electrical components. The entire control system undergoes high-temperature cyclic and vibration testing, guaranteeing dependable performance.

Resettable Rated Output Current

Excellent Soft Stop Performance

Industrial Fieldbus Support

Our soft starter allows you to adjust its actual output current within a certain range. This means that even if the soft starter's nominal power exceeds your actual load, you can reset it to match the real load. This ensures both accurate starting performance and precise motor protection.

Our system delivers smooth stopping regardless of whether it's during startup or normal operation, once the work mode is set. With reasonable parameter settings, you can achieve a gentle stop tailored to various loads, proving especially beneficial for applications like filling lines and water pumps in production.

Our system includes 485 communication functionality and supports the Modbus communication protocol, an international standard.

Technical Specfication

Switch Mode	Thyristor
Voltage of Power Supply	AC380V±15% (220V/380V/440V/660V customizable)
Start Frequency	Frequent or infrequent start available, It is advised not to exceed 20 times each hour.
Applicable Motor	Squirrel-cage three-phase asynchronous motor
Relay Output	Two way programmable ouotput relay
Display	Large screen LCD, Chinese and English display mode. Display current three-phase output current, grid voltage, fault type, system parameters and operating parameters.
Communication	RS485
Altitude	Below 1000M. It has to increase the soft starter rate power when the altitude is more than 1000M.When sea altitude is above 2,000m, soft starter should be derated for use.
Ambient Temperature	- 25 ~ +45°C
Ambient Humidity	less than 95%(20°C±5°C)
Vibration Intensity	Below 0.5g (acceleration)
Enclosure rating	IP 20
Equipment Site	Indoor, no direct sunlight, no dust, corrdosive gas, flammable gask, oil mist, water vapor, dripping water or salt, etc
Installation Method	Wall mounted
Cooling Mode	Natural cooling or forced air cooling

Category	Terminal Symbols	Terminal Name	Function description
Digital Input	Run	DigitalInput1	1, Opticalcouplerisolation 2, InputImpedance: 2.4kΩ 3,The control terminal and the commonpoint are closed and effective
	Stop	DigitalInput2
	External Fault	DigitalInput3
	Common Terminal	COM
Analog Output	AO-GND	AnalogOutput	The voltage or current output is determined bytheJP1 jumper selection on the control board. Outputvoltagerange:0V~10V Outputcurrentrange:4mA~20mA
Relay output	Programming output	Normal open terminal TA1-TB1-TC1	Contact drive capability: AC250V,3A,COSø=0.4 Programmable output options: fault output, operation indication
	Bypass output	Normal open terminal TA2-TC2
Communication Terminal	485- 485+	RS485 Hardware Circuit	Support standard MODBUS communication

Model Specifications

Model No.#	Rated Current (A)	Adapt Motor  (KW)	Circuit Breaker Model	Main Wiring Specifications
PQZR8-SN22-T4	45	22	NXB-63	16mm^2	Copper wire
PQZR8-SN30-T4	60	30	NXB-80	25mm^2	Copper wire
PQZR8-SN37-T4	76	37	NXB-100	35mm^2	Copper wire
PQZR8-SN45-T4	90	45	NXB-125	35mm^2	Copper wire
PQZR8-SN55-T4	112	55	NXB-160S	35mm^2	Copper wire
PQZR8-SN75-T4	150	75	NXB-180S	50mm^2	Copper wire
PQZR8-SN90-T4	180	93	NXB-200S	30×3	Copper busbar
PQZR8-SN110-T4	220	110	NXB-250S	30×3	Copper busbar
PQZR8-SN132-T4	260	132	NXB-315S	30×4	Copper busbar
PQZR8-SN160-T4	320	160	NXB-350H	30×4	Copper busbar
PQZR8-SN185-T4	370	185	NXB-400H	40×4	Copper busbar
PQZR8-SN200-T4	400	200	NXB-500S	40×4	Copper busbar
PQZR8-SN220-T4	440	220	NXB-500H	40×4	Copper busbar
PQZR8-SN250-T4	500	250	NXB-630S	40×4	Copper busbar
PQZR8-SN280-T4	560	280	NXB-630H	40×4	Copper busbar
PQZR8-SN315-T4	630	315	NXB-700H	40×5	Copper busbar
PQZR8-SN350-T4	700	350	NXB-800H	40×6	Copper busbar
PQZR8-SN400-T4	800	400	NXB-1000S	40×6	Copper busbar

Model(KW)	Peripheral Dimension (mm)			Installation Aperture (mm)			Package Size (mm)
	W	D	H	A	B	Φ	L	W	H
11-75	190	180	320	140	285	M6	250	235	365
90-110	210	260	430	170	360	M8	215	290	450
132-220	290	260	610	240	535	M8	310	290	620
250-350	330	280	680	230	580	M8	340	300	690
400 above	380	280	720	325	630	M8	405	310	745