Yokogawa SNB10D-245/CU2T Safety Node Unit | Rack Mount | ESB Bus

SNB10D-245/CU2T Safety Node Unit (Rack Mountable)

Yokogawa SNB10D-245/CU2T is a rack-mountable Safety Node Unit for distributed safety control. It features dual-redundant power (R3 license) and 24 V DC input. The CU2T option includes a Connector Unit with Terminator for ESB Bus (S9343FA). This unit supports harsh environments with ISA Standard G3 coating and -20 to 70 °C operation (no explosion protection).

Connect up to 13 safety node units via SEC402 ESB bus coupler, or up to 9 units with SEC401. Ideal for Modicon Quantum and other safety control architectures.

Technical Specifications

• Frequency response: 50/60 Hz for AC models.
• Linearity & resolution: Digital I/O with high precision timing.
• Interference immunity: Meets ISA G3 harsh environment standards.
• Cooling: Natural convection, no fan required.

Installation & Maintenance

• Rack mount with 4x M5 screws. Use included insulation bushes.
• Mounting orientation: horizontal or vertical (rack standard).
• Maintenance: front-access LEDs for quick status check.
• Firmware updates via ESB bus (no disassembly).
• Replaceable power supply modules (dual-redundant).

Compatibility

• Compatible with Modicon Quantum via ESB bus.
• Works with S2SC70S, S2SC70D, SSC60S, SSC60D safety control units.
• SEC401 and SEC402 ESB bus coupler modules supported.
• Integration with Yokogawa ProSafe-RS and CENTUM VP.

Certifications

• ✔ ISA Standard G3 (severe environment)
• ✔ CE marked (EMC and LVD)
• ✔ RoHS compliant
• ✔ SIL 2 capable (per IEC 61508)

Typical Applications & Diagnostics

• Emergency shutdown (ESD) systems for oil & gas.
• Burner management and fire/gas detection.
• High availability process safety loops.
• Diagnostic capabilities: real-time status, bus error logging, node health monitoring.
• Supports hot-swap of node units for maintenance.

FAQ

• Q: Does it support redundant power?
• A: Yes, suffix 2 indicates dual-redundant power with R3 license.
• Q: What is the CU2T option?
• A: Connector Unit with Terminator for ESB Bus (part S9343FA).
• Q: Can I use it with Modicon Quantum?
• A: Yes, via ESB coupler modules (SEC401/402).
• Q: What is the temperature range?
• A: -20 to 70 °C with ISA G3 coating.
• Q: How many nodes can I connect?
• A: Up to 13 with SEC402, or 9 with SEC401.

Why Buy From Oiltech Controls?

• ✓ 15+ years in industrial automation spares.
• ✓ Global shipment via FedEx, UPS, DHL (fast & trackable).
• ✓ Tested surplus / refurbished options with verification.
• ✓ 12-month warranty on all products.
• ✓ Technical verification before shipment (functional test).
• ✓ Support for obsolete control systems.

Packaging & Shipping

• Package includes: SNB10D unit, insulation bushes, M5 screws, CU2T connector, terminator.
• Shipped in industrial-grade anti-static packaging.
• Carriers: FedEx, UPS, DHL (express worldwide).
• Tracking number provided within 24 hours.

Inquiries:
info@oiltechcontrols.com  |
+86 158 8020 0923 (WhatsApp)

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