Excellent PLC
| Company Information | ||||||||
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Overview
The Yokogawa SNB10D-415/CU2N is a rack-mounted Safety Node Unit designed for the ProSafe-RS Safety Instrumented System (SIS). It functions as an interface between field I/O signals and the safety control unit, transmitting analog and contact signals while supplying power to connected I/O modules. Its dual-redundant architecture ensures reliable operation and meets SIL 3 safety requirements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SNB10D-415/CU2N |
| Power Supply | Dual-redundant, 100–120 V AC / 220–240 V AC / 24 V DC |
| Power Consumption | 100–120 V AC: 200 VA 220–240 V AC: 230 VA 24 V DC: 5.5 A |
| I/O Module Capacity | Up to 8 I/O modules |
| ESB Bus Interface | Dual-redundant SSB401 modules |
| Safety Integrity Level (SIL) | SIL 3 |
| Environmental Rating | ISA Standard G3, -20°C to 70°C |
| Mounting | 19-inch rack, 4 M5 screws |
| Dimensions (W x H x D) | 482.6 x 221.5 x 205 mm |
| Weight | 5.9 kg |
| Connector Unit | CU2N for ESB Bus |
Applications
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Interface module for field I/O in safety-critical processes
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Integration into ProSafe-RS SIS for chemical, oil & gas, and power industries
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SIL 3 compliant safety signal processing
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Dual-redundant architecture for continuous plant operation
Advantages
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High Reliability: Dual-redundant power supply and ESB interface
-
SIL 3 Compliance: Meets stringent safety standards for critical processes
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Flexible I/O Integration: Supports up to 8 I/O modules
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Compact Design: 19-inch rack mounting for easy installation
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Wide Operating Range: -20°C to 70°C, suitable for harsh industrial environments
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Efficient Power Use: Optimized AC/DC consumption
Frequently Asked Questions
1. What is the primary function of the SNB10D-415/CU2N?
It acts as a safety node unit, interfacing between field I/O and the safety control system while providing power to I/O modules.
2. Which safety integrity level does it meet?
It meets SIL 3 standards.
3. How many I/O modules can it support?
It can support up to 8 I/O modules.
4. What types of power supply are compatible?
100–120 V AC, 220–240 V AC, and 24 V DC dual-redundant configurations.
5. What is the operating temperature range?
-20°C to 70°C.
6. How is the unit mounted?
It is designed for 19-inch rack mounting using 4 M5 screws.
7. What communication interface does it use?
Dual-redundant ESB Bus interface with SSB401 modules.
8. What is the weight and size of the unit?
482.6 x 221.5 x 205 mm; 5.9 kg.
9. Can it operate continuously in harsh environments?
Yes, it is rated for industrial use with wide temperature tolerance.
10. Does it include a connector unit for ESB Bus?
Yes, the CU2N connector unit is included.
Related Models (Same Series)
| Model | Description | Dimensions (mm) | Weight (kg) | SIL |
|---|---|---|---|---|
| SNB10D-410/CU2N | Safety Node Unit, AC powered | 482.6 x 221.5 x 205 | 5.8 | 3 |
| SNB10D-420/CU2N | Safety Node Unit, DC powered | 482.6 x 221.5 x 205 | 5.7 | 3 |
| SNB10D-415/CU2 | Node Unit without ESB connector | 482.6 x 221.5 x 205 | 5.9 | 3 |
| SNB10D-425/CU2N | High-capacity I/O node | 482.6 x 221.5 x 205 | 6.0 | 3 |
| SNB10D-430/CU2N | Extended temp range | 482.6 x 221.5 x 205 | 6.1 | 3 |
| SNB10D-440/CU2N | Redundant I/O node | 482.6 x 221.5 x 205 | 6.2 | 3 |
Popular Yokogawa Models
| Model | Function | Dimensions (mm) | Weight (kg) | SIL |
|---|---|---|---|---|
| ANB10D-410 | Safety I/O Node | 482.6 x 221.5 x 205 | 5.8 | 3 |
| SNB20D-415/CU2N | Advanced Safety Node | 482.6 x 221.5 x 205 | 6.0 | 3 |
| FIO10D-410 | Field I/O Module | 482.6 x 221.5 x 205 | 5.5 | 3 |
| SSB401 | ESB Bus Interface | 200 x 100 x 50 | 1.2 | 3 |
| SPW481 | AC Power Supply Module | 180 x 100 x 75 | 1.8 | 3 |
| CU2N | Connector Unit | 100 x 80 x 50 | 0.5 | 3 |
