Company Name: Zhejiang Ziri Electrical Technology Co., Ltd.
Specialist Area: Frequency Inverters, Soft Starters
Operating Type: Manufacturer/Trading
Established: 2003
Website: chziri.com
Email: chziri@chziri.com
Phone: +86-577-27863300
WhatsApp: +86-135-0667-4830
E-commerce: Alibaba Made-in-China
Social Media:
Location: No. 62-70 Daqiao Road, Dongfeng Village, Liushi, Yueqing, Wenzhou, Zhejiang 325604, China Google Maps
ZIRI (Zhejiang Ziri Electrical Technology Co., Ltd.), established in 2003, supplies variable frequency drives and soft starters, intelligent pump controllers, motor control panels, and related components such as braking resistors, reactors, and filters. Its product range covers general motor drives, pump control, solar pumping, motor soft starting, and complete control-panel applications, allowing buyers to source a relatively complete motor-drive and control solution.
ZIRI’s strength lies in its supporting product range and system-integration capability rather than isolated standard products. Its production process includes PCB assembly and testing, complete-unit assembly, high-temperature testing, functional debugging, and pre-shipment inspection. It can also design VFD control panels, soft-starter panels, and MCC panels according to customer wiring diagrams and application requirements. ZIRI may be suitable for distributors, system integrators, and equipment manufacturers requiring multiple power ratings, control-panel integration, OEM customization, or long-term spare-parts support.
ZIRI is worth considering for quotation and sample evaluation in VFD, soft-starter, and motor-control-panel projects. Before purchasing, buyers should confirm the input voltage, output power, load type, control method, bypass configuration, communication protocol, and enclosure protection rating of each model. Certification documents should be checked against the exact product model and destination market.
For customized panels or special applications, buyers should confirm the electrical drawings, principal component brands, enclosure dimensions, cooling method, protection logic, and acceptance criteria before placing an order. Standard after-sales terms include a 16-month warranty and online technical support, but the warranty start date, fault assessment, spare-parts supply, repair responsibility, and response time should be defined in the contract. Buyers in markets without local distributors or technicians should also evaluate commissioning and after-sales support arrangements in advance.
ZVF510 variable frequency inverter supports 200-240V and 360-440V motor control, with V/F, vector and torque modes, PID regulation, Modbus communication and models from 0.4kW to 11kW.
ZVF300H open-loop vector inverter controls asynchronous motors with G and P duty ratings, 200-240V or 360-440V input, 0-600Hz output, PID, Modbus and remote keypad support.
ZVF300 T2 open-loop vector drive provides three-phase 220V motor control from 0.4kW to 110kW, with 0-600Hz output, PID, Modbus, remote keypad support and multiple protection functions.
ZVF330 compact V/F drive covers single-phase 220V, three-phase 220V and three-phase 380V motors up to 7.5kW, with PID, multi-speed control, DC braking and Modbus communication.
ZVF380 vector frequency converter controls asynchronous motors with SVC, closed-loop vector and V/F modes, 0-500Hz output, PID, PLC functions, multiple fieldbuses and encoder support.
ZSI800 solar pumping inverter converts photovoltaic DC or AC supply for 220V and 380V water-pump motors, with MPPT, water-level control, dry-run protection and models from 0.4kW to 160kW.
ZVF600 IP54 pump inverter mounts near the motor and controls 220V or 380V pumps up to 7.5kW, with constant-pressure operation, water-shortage protection, networking and automatic restart.
ZVF600-G IP54 inverter controls general machinery or water-supply systems with V/F and vector modes, 220V or 380V models to 7.5kW, PID, Modbus, protection and motor-mounted installation.
ZHG-9603 constant-pressure pump controller coordinates up to three main pumps and one auxiliary pump, with timed rotation, eight pressure periods, level control, protection and inverter fallback.
ZBK intelligent pump controller combines upper- and lower-level control with automatic or manual operation, motor protection, adjustable no-load restart, fault memory and 0.37-15kW models.
Constant-pressure pump control panel coordinates three main pumps and one auxiliary pump with variable-speed control, pressure schedules, pump rotation, network monitoring and protection.
DBU braking units direct regenerative energy from an inverter DC bus into a braking resistor, with selectable chopper voltages, protection, parallel connection and matched drive ratings.
Wirewound braking resistors dissipate inverter regenerative energy through a ceramic-supported alloy element, with 50-2500W ratings, configurable resistance and matched motor-braking selections.
BRU power resistor boxes combine wirewound elements in an IP20 or IP23 enclosure for inverter braking, test equipment, elevators and cranes, with documented power, dimensions and resistor matching.
PRU power resistor units combine wirewound elements in a cabinet for high-power inverter braking, lifting equipment and load tests, with 30-200kW ratings, up to 1200V operation and matching data.
AC input reactor installs on the inverter supply side to limit surge current, reduce line harmonics and improve the input-current waveform, with 2% voltage drop models from 5A to 1600A.
AC output reactor installs between inverter and motor to smooth PWM output, reduce dv/dt, motor noise, eddy-current loss and leakage current, with 1% voltage-drop models from 5A to 1600A.
Inverter EMI filters reduce conducted electromagnetic interference in industrial motor-drive systems, with 275/480VAC use, 50/60Hz operation, 5-1200A selection data and input/output filter matching.
Sine-wave filter converts inverter PWM output into a smoother motor waveform to reduce dv/dt, overvoltage, cable resonance and audible motor noise, with 380V models selected by power and current.
Shielded inverter remote-control cables connect compatible external keypads to the drive, with standard captured lengths of 1m, 1.5m, 2m, 3m, 5m and 10m plus application-specific length options.
Inverter keypads provide local display and parameter control for compatible ZVF300, ZVF300H, ZVF330 and ZVF380 drives, with distinct panel layouts that must be matched to the inverter series.
Optional inverter parts include aluminum power resistors, control boards, drive boards, keypads, RS485-to-USB converters, IGBT modules and related components for compatible drive systems.
Inverter control cabinet integrates a VFD with switching, protection, metering and optional reactors, filters, braking parts, PLC or HMI for local, remote or automated motor-speed control.
Motor control center panel is configured around the motor schedule, incomer and distribution requirements, with VFD feeders, local/remote controls, metering, indication and isolation.
Soft starter control panel combines a motor soft starter, bypass contactor and circuit breaker for controlled starting, stopping and protection, with selectable parameters and cabinet options.
Direct-on-line starter panel connects motors at full supply voltage and uses main breakers, individual starter circuits and controls for documented 220V, 60Hz multi-motor systems.
ZJR7-E soft starter controls three-phase 220-480V motors with an external bypass contactor, LCD operation, three motor parameter sets, PTC input, RS485 and model ratings up to 1260A.
ZJR7-B soft starter controls three-phase 220-480V motors with an integrated bypass contactor, LCD operation, three motor parameter sets, PTC input, RS485 and model ratings up to 1260A.
ZJR2 soft starter supports three-phase 320-460V motors with an external bypass contactor, multiple starting modes, soft or free stop, motor protection and captured ratings from 5.5-600kW.
ZJR2-B soft starter combines 320-460V motor starting with three internal bypass relays, multiple start and stop modes, motor protection and a captured 5.5-55kW model range.
ZJR7000 690V soft starter integrates bypass switching, multilingual LCD control, advanced start and stop functions, motor protection, monitoring, event records and captured 11-400kW models.
ZRMV high-voltage soft starter controls and protects 3kV, 6kV and 10kV asynchronous or synchronous motors, with thyristor power stages, local/remote control, Modbus and cabinet ratings.
