RKC FB400 VN-4*4NN5/A1-FS06/Y PID Temperature Controller | Replacement, Equivalent & Selection Guide
The RKC FB400 VN-4*4NN5/A1-FS06/Y is a high-performance PID temperature controller from RKC Instrument Inc., engineered for precise process temperature regulation in industrial automation systems. This model features a compact DIN-rail-compatible form factor with multi-input sensor support and versatile output configurations, making it a reliable choice for OEM equipment builders and system integrators.
Technical Specifications
- Manufacturer: RKC Instrument Inc.
- Series: FB400
- Full Model Number: FB400 VN-4*4NN5/A1-FS06/Y
- Control Type: PID / ON-OFF
- Input Types: Thermocouple (K, J, T, E, R, S, B, N, W) & RTD (Pt100)
- Output: Relay output (A1) + auxiliary output (FS06)
- Display: 4-digit LED display
- Power Supply: 100–240 VAC, 50/60 Hz
- Control Output: Relay contact (SPDT)
- Alarm Outputs: 2 alarm outputs
- Communication: RS-485 (Modbus RTU, optional)
- Dimensions: 48 × 48 × 100 mm (1/16 DIN)
- Weight: Approx. 1,130 g (packaged)
- Operating Temperature: 0–50°C
- Protection Rating: IP66 (front panel)
- Certifications: CE, UL
Compatible Replacement & Equivalent Models
If the RKC FB400 VN-4*4NN5/A1-FS06/Y is unavailable or you are evaluating alternatives, the following models offer compatible functionality:
- RKC CB400 (same series, updated firmware) — Direct functional replacement with enhanced PID auto-tuning
- RKC CB100 / CB500 — Smaller/larger form factor alternatives within the RKC CB-series
- Omron E5CC-RX2ASM-800 — 1/16 DIN PID controller, relay output, RS-485 Modbus; widely used equivalent
- Autonics TK4S-14RN — Cost-effective 1/16 DIN PID replacement with relay output
- Yokogawa UT35A-000-10-00 — High-accuracy equivalent for precision process applications
- Fuji Electric PXR4 — Compatible 1/16 DIN PID controller with similar I/O configuration
- Shimaden SR23 — Japanese-made equivalent with multi-input and relay output
Note: Always verify wiring diagrams and parameter settings when substituting controllers. Contact Konmask technical support for cross-reference assistance.
Why Choose the Original RKC FB400 VN-4*4NN5/A1-FS06/Y
- Proven Reliability: RKC Instrument has over 60 years of experience in precision temperature control; the FB400 series is field-tested in demanding industrial environments.
- Exact Parameter Compatibility: Using the original model ensures 100% parameter and wiring compatibility with existing RKC-based systems — no re-engineering required.
- Advanced PID Algorithm: RKC’s proprietary auto-tuning PID delivers tighter setpoint accuracy (±0.1°C typical) versus generic alternatives.
- Dual Alarm Architecture: Independent alarm outputs (FS06) allow simultaneous high/low deviation monitoring without additional relay modules.
- Long-Term Parts Availability: Konmask maintains stock of RKC FB400 series to support MRO (Maintenance, Repair & Operations) requirements.
Typical Applications
- Plastic injection molding machines (barrel & mold temperature control)
- Industrial ovens, kilns, and furnaces
- Packaging machinery heat-seal systems
- Food processing and sterilization equipment
- Semiconductor and electronics manufacturing
- Chemical reactor temperature regulation
- HVAC and building automation systems
System Compatibility
The FB400 VN-4*4NN5/A1-FS06/Y integrates seamlessly with:
- PLC Systems: Mitsubishi MELSEC, Siemens S7, Omron CJ/NJ, Allen-Bradley CompactLogix (via RS-485 Modbus RTU)
- SCADA/HMI: Compatible with standard Modbus RTU protocol for data acquisition and remote setpoint adjustment
- Sensor Types: K, J, T, E, R, S, B, N, W thermocouples; Pt100 RTD — no additional signal conditioner required
- Panel Cutout: Standard 45 × 45 mm (1/16 DIN) — drop-in replacement for most existing panel installations
Selection Guide
Use this guide to confirm the FB400 VN-4*4NN5/A1-FS06/Y is the right model for your application:
- Form Factor: 1/16 DIN (48 × 48 mm) — suitable for compact panel installations
- Output Required: Relay (A1) — ideal for on/off heater switching up to 3A/250VAC
- Alarm Configuration: FS06 dual alarm — required for deviation high + deviation low monitoring
- Communication: RS-485 Modbus RTU (Y suffix) — required if remote monitoring or PLC integration is needed
- If you need SSR output: Consider RKC FB400 VN-4*4NN5/A2 (voltage pulse output for SSR drive)
- If you need 4–20 mA analog output: Consider RKC FB400 VN-4*4NN5/A3 (current output variant)
- If DIN rail mounting is preferred: Consider RKC CB400 series with DIN rail adapter
Quality Assurance & Sourcing
- Authenticity Guaranteed: All RKC products at Konmask.com are sourced from authorized distributors or directly from RKC Instrument Inc. — no grey-market or counterfeit units.
- Inspection: Each unit undergoes incoming inspection including label verification, serial number validation, and functional power-on check before dispatch.
- Packaging: Ships in original OEM packaging with full documentation (instruction manual, calibration certificate where applicable).
- Warranty: 12-month warranty against manufacturing defects. Extended warranty available on request.
- Lead Time: In-stock units ship within 1–3 business days. Contact us for bulk order lead times.
How to Order
- Online: Add to cart directly on this page — secure checkout with bank transfer, PayPal, and major credit cards accepted.
- Email RFQ: Send your BOM or purchase order to support@konmask.com for volume pricing and lead time confirmation.
- Phone/WhatsApp: +0086 19859288691 — available Monday–Friday, 09:00–18:00 CST.
- Minimum Order: 1 unit. Volume discounts available for orders of 5+ units.
Replacement & Compatibility FAQ
Q: Can I replace the RKC FB400 VN-4*4NN5/A1-FS06/Y with an Omron E5CC?
A: Yes, the Omron E5CC-RX2ASM-800 is a widely accepted functional equivalent. However, wiring pinouts differ — refer to both datasheets before installation. Parameter migration will require manual re-entry.
Q: Is the FB400 compatible with Modbus TCP/IP?
A: No. The /Y suffix indicates RS-485 Modbus RTU only. For Ethernet/Modbus TCP, a protocol gateway (e.g., Moxa MGate) is required.
Q: What is the difference between FB400 and CB400?
A: The CB400 is the successor series with improved auto-tuning, enhanced EMC performance, and updated firmware. Both share the same 1/16 DIN form factor and are functionally interchangeable in most applications.
Q: Can Konmask provide a certificate of conformance (CoC)?
A: Yes. CoC and test reports are available upon request for quality-critical procurement.
Q: Do you ship internationally?
A: Yes. Konmask ships worldwide via DHL, FedEx, and UPS. Export documentation (commercial invoice, packing list, HS code 9032.10) is provided for customs clearance.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
