Variable Speed Drive Solution – NORD Drivesystems NORDAC SK700E-112-340-A-GBB-BY | SK 700E Series
Where This Product Is Used
The NORDAC SK700E-112-340-A-GBB-BY is a compact, high-performance frequency inverter engineered for demanding industrial motor control applications. Engineers and system integrators specify this drive across a wide range of sectors:
- Material Handling & Conveyors: Precise speed regulation for belt conveyors, roller conveyors, and sorting systems in warehouses, logistics centers, and manufacturing lines.
- Pump & Water Treatment Systems: Energy-efficient flow control for centrifugal pumps in municipal water supply, wastewater treatment, and industrial process cooling.
- HVAC & Fan Control: Variable airflow management for industrial ventilation fans, air handling units, and cooling tower fans — reducing energy consumption by up to 50% vs. fixed-speed operation.
- Compressor Drives: Smooth start/stop and speed modulation for screw and reciprocating compressors in pneumatic systems.
- Mixing & Agitation: Controlled torque delivery for industrial mixers, agitators, and blenders in chemical and food processing plants.
- Crane & Hoist Applications: The integrated brake chopper (BY suffix) makes this drive particularly suited for hoisting, crane traversal, and vertical transport where regenerative braking energy must be safely dissipated.
- Textile & Printing Machinery: Synchronized multi-axis speed control for winding, unwinding, and tension control systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | SK700E-112-340-A-GBB-BY |
| Brand / Manufacturer | NORD Drivesystems (Getriebebau NORD) |
| Series | NORDAC SK 700E |
| Rated Output Power | 11.2 kW (15 HP) |
| Input Voltage | 3-Phase 380–480 V AC (±10%) |
| Input Frequency | 50 / 60 Hz |
| Output Frequency Range | 0 – 400 Hz |
| Rated Output Current | ~25 A (nominal) |
| Control Mode | V/f, Sensorless Vector (VFC), Closed-Loop Vector |
| Fieldbus Interface (GBB) | PROFIBUS DP / CANopen (integrated option) |
| Brake Chopper (BY) | Integrated — supports external braking resistor |
| Protection Class | IP20 (cabinet mounting) |
| Ambient Temperature | -10°C to +40°C (operating) |
| Weight | 3.5 kg |
| Cooling Method | Forced air cooling (internal fan) |
| Standards | CE, UL, cUL, RoHS |
Why Engineers Specify This Model
- Integrated Brake Chopper: The -BY suffix confirms a built-in brake chopper transistor, eliminating the need for an external chopper unit in regenerative load applications such as hoists and cranes. Simply connect an external braking resistor.
- Fieldbus-Ready Out of the Box: The -GBB option provides integrated PROFIBUS DP and/or CANopen communication, enabling seamless integration into PLC-controlled automation networks without additional gateway hardware.
- Compact Footprint: The SK 700E series delivers high power density in a slim cabinet-mount form factor, saving panel space in tight electrical enclosures.
- Wide Motor Compatibility: Supports standard asynchronous induction motors and synchronous PM motors with multiple control algorithms (V/f, VFC open-loop, closed-loop vector).
- Energy Savings: Integrated energy-saving algorithms and PID controller enable significant reductions in energy consumption for variable-torque loads (pumps, fans).
- Proven NORD Reliability: NORD Drivesystems is a globally recognized German manufacturer with decades of experience in drive technology, backed by worldwide service networks.
Complete System Bill of Materials
For a complete variable speed drive installation using the SK700E-112-340-A-GBB-BY, engineers typically specify the following complementary components:
- External braking resistor (required when using the integrated brake chopper for regenerative loads)
- Input line reactor / EMC filter (for grid harmonic mitigation and EMC compliance)
- Output dV/dt filter or sine filter (for long motor cable runs >50 m)
- PROFIBUS DP or CANopen network cable and termination resistors
- Compatible NORD gearmotor (e.g., SK series helical or bevel-helical gear units)
- Circuit breaker / fuse protection (upstream, per local electrical code)
- Shielded motor cable (recommended for EMC compliance)
Compliance & Industry Standards
- CE Marking: Compliant with EU Low Voltage Directive (LVD) 2014/35/EU and EMC Directive 2014/30/EU.
- UL / cUL Listed: Recognized for North American markets.
- RoHS Compliant: Free of restricted hazardous substances per EU RoHS Directive 2011/65/EU.
- EN 61800-5-1: Safety requirements for adjustable speed electrical power drive systems.
- EN 61800-3: EMC requirements for power drive systems.
- IEC 61508 / SIL: Functional safety compatibility (consult NORD documentation for SIL rating details).
Quality Assurance & Sourcing
At Konmask.com, every NORDAC SK700E unit is sourced through verified industrial supply channels. Our quality assurance process includes:
- Visual inspection and packaging integrity check upon receipt
- Verification of manufacturer labels, serial numbers, and date codes
- Cross-referencing part numbers against NORD Drivesystems official product catalogs
- Storage in ESD-safe, climate-controlled warehouse conditions
- Traceability documentation available upon request for OEM and MRO customers
We specialize in sourcing hard-to-find and obsolete industrial automation components for MRO (Maintenance, Repair & Operations) and OEM production continuity.
How to Source This Part
- In Stock: Contact us to confirm current stock availability and lead time.
- Request a Quote: Email support@konmask.com with your quantity and delivery requirements.
- Bulk / OEM Orders: Volume pricing available for orders of 3+ units. Please inquire for tiered pricing.
- Urgent MRO: Same-day quotation for emergency plant breakdown situations. Call or WhatsApp: +0086 19859288691
- Export & International Shipping: We ship worldwide with full export documentation (commercial invoice, packing list, COO).
Application-Specific FAQ
Q: Can the SK700E-112-340-A-GBB-BY be used with a single-phase input supply?
A: No. This model requires a 3-phase 380–480 V AC input. For single-phase applications, a different SK 700E variant with single-phase input is required.
Q: Does the integrated brake chopper require an external braking resistor?
A: Yes. The built-in brake chopper transistor (BY) requires connection to an appropriately sized external braking resistor. The resistor is not included and must be selected based on the application’s braking duty cycle and power requirements.
Q: What fieldbus protocols does the GBB option support?
A: The GBB option supports PROFIBUS DP and CANopen communication protocols, enabling direct integration with Siemens, Beckhoff, Schneider, and other PLC platforms.
Q: Is this drive suitable for pump and fan applications with variable torque loads?
A: Yes. The SK 700E series includes an integrated PID controller and energy-saving V/f characteristic specifically optimized for variable-torque loads such as centrifugal pumps and fans.
Q: What is the warranty on this product?
A: Please contact us at support@konmask.com for warranty terms applicable to your order. Warranty coverage varies based on sourcing channel and application.
Q: Can I get a datasheet or wiring diagram?
A: Yes. Technical documentation including the NORDAC SK 700E operating manual and wiring diagrams are available upon request. Contact support@konmask.com.
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