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The SK700E-401-340-A is an industrial-grade 4.0 kW / 9.0 A general-purpose AC frequency inverter utilizing a compact, book-size cabinet-mount layout and Sensorless Current Vector Control algorithms. This drive features an integrated Class A line filter alongside a built-in braking chopper, provides comprehensive self-protection, and natively supports seamless integration of fieldbuses like Profibus and CANopen via pluggable expansion cards. It is widely deployed across general automation sectors, including logistics conveyors and food processing machinery.
Detachable technology slots and customer I/O terminal cards allow hardware upgrades and easy interface changes without swapping the main drive body
Integrated Class A line filter suppresses high-frequency radio interference and harmonic pollution directly at the source
Pluggable interface slots accept extension cards for Profibus-DP, CANopen, and DeviceNet, enabling integration into host PLC networks
SK700E-401-340-A is a cabinet-mounted frequency inverter utilizing power semiconductor modules housed in a book-size enclosure measuring 295 mm in height, 105 mm in width, and 230 mm in depth, which allows zero-clearance side-by-side parallel mounting on standard rails. The hardware architecture uses a modular topology consisting of a technology slot at the top and standard control terminal blocks at the base, which allows direct pluggable integration of fieldbus expansion cards—such as Profibus-DP, CANopen, or DeviceNet—for data synchronization into the host PLC network.
Regarding electrical control and protection circuitry, the device incorporates an integrated braking chopper to dissipate regenerative deceleration energy via dedicated terminals to external resistors. Furthermore, integrated hardwired monitoring sub-circuits and electro-thermal protection networks trigger millisecond-level latching alarms to cut off output during phase-to-phase short-circuits, earth faults, DC-bus overvoltage fluctuations, and electronic motor overload conditions to achieve comprehensive asset protection.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Nord SK700E-401-340-A Frequency Inverter Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Food & Beverage Processing
Drives food mixers, bottling filling lines, and industrial baking oven mesh belts. It precisely matches different production batch speeds to ensure consistency.
Packaging Machinery
Controls motors in automatic sealing, labeling, and carton-erecting machines. It ensures uniform film stretching and accurate label placement via precise speed control.
Automotive Manufacturing
Applied to overhead chain conveyors and heavy-duty cranes in assembly and painting shops. It controls synchronous operation of long-distance conveyor systems to prevent mechanical chain strain.
Plastics & Rubber Extrusion
Drives the main motors of single/twin-screw extruders and pelletizers. With up to 400% torque capability, it maintains extremely stable extrusion speeds under high resistance of molten plastic.
Machine Tools & Metalworking
Controls auxiliary feed axes, coolant pumps, or belt drives in metal cutting saws and CNC machines. It adjusts cutting speeds to optimize surface finish of metal parts.
Pharmaceutical Industry
Drives tablet presses, capsule filling machines, and laboratory centrifuges. It meets strict pharmaceutical requirements for stepless speed regulation and vibration-free start.
Strictly confirm the 380-480VAC three-phase power input, and never misconnect high voltage or reverse the output terminals. The unit must be reliably grounded to suppress leakage current and electromagnetic interference from the built-in filter. Ensure excellent ventilation for 4.0 kW full-load heat dissipation; use high-IP enclosures in dusty or humid sites. For hoisting or frequent deceleration loads, an externally matched braking resistor must be connected to prevent overvoltage tripping. During commissioning, prioritize motor parameter identification and properly configure overload protection—never force a start under load blindly.
SK700E-401-340-A stably delivers a 9.0A continuous output current under a rated 3-phase 400V supply. Built upon a highly modular, pluggable hardware architecture, its upper technology slot seamlessly expands major industrial fieldbuses to function directly as a standard slave unit within host PLC networks.
What is the basic definition of the SK700E-401-340-A product?
It is a NORDAC series industrial AC frequency inverter manufactured by NORD Germany, with a rated power of 4.0 kW, primarily used to control the speed and torque of three-phase AC induction motors.
How should a frequency inverter product like SK700E-401-340-A be used correctly?
It must be installed inside a control cabinet with an adequate protection rating, connected to a 380-480V three-phase AC power supply, with the output wired to the motor, and managed via an operating panel, analog signals, or fieldbus to regulate motor speed.
Which industrial automation systems or sectors frequently use the SK700E-401-340-A?
It primarily belongs to general automation systems and is widely used in logistics conveyors, food processing machinery, agitators, hoisting equipment, fans, and pump drives.
What is the ingress protection (IP) rating of the SK700E-401-340-A housing?
SK700E-401-340-A features an IP20 ingress protection rating.
Does the SK700E-401-340-A include an integrated filter to suppress electromagnetic interference?
Yes, this model includes an integrated Class A radio interference suppression filter (line filter), which effectively reduces electromagnetic pollution to the external power grid and environment.
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