Excellent PLC
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Overview
The Yokogawa SNB10D-425 Safety Node Unit is a rack-mounted interface module for ProSafe-RS safety systems. It transmits analog and discrete signals from field devices to safety controllers via the Ethernet Safety Bus (ESB) and supplies reliable power to connected I/O modules. It is SIL 3 certified and suitable for demanding industrial environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 100–120 V AC, 50/60 Hz; 220–240 V AC, 50/60 Hz; 24 V DC |
| Power Consumption | 100–120 V AC: 200 VA; 220–240 V AC: 230 VA; 24 V DC: 5.5 A |
| Weight | 5.9 kg |
| Dimensions (H x W x D) | 482.6 x 221.5 x 205 mm |
| Mounting | Rack-mounted, 4 M5 screws with insulation bushes |
| Operating Temperature | -20°C to +70°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Safety Integrity Level (SIL) | SIL 3 |
| Connectable Safety Nodes | Up to 13 units with SEC402; up to 9 units with SEC401 |
| Conformity Standards | ProSafe-RS compliant |
Applications
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Safety-critical processes in chemical, oil & gas, and power industries
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Signal interfacing between field devices and safety controllers
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Modular rack-mounted safety systems with scalable I/O
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Systems requiring high availability, redundancy, and SIL 3 compliance
Advantages
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SIL 3 certified for high reliability
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Wide operating temperature and humidity range
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Rack-mounted modular design for efficient space utilization
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Supports multiple I/O modules and ESB couplers
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Scalable and flexible for various safety configurations
FAQ
1. What signals does the SNB10D-425 support?
It supports analog and discrete contact signals from field devices.
2. How many Safety Node units can be connected?
Up to 13 units using SEC402 and up to 9 units using SEC401 bus couplers.
3. What is the mounting method?
Rack-mounted with 4 M5 screws and insulation bushes.
4. What is the operating temperature range?
-20°C to +70°C.
5. What is the SIL level?
SIL 3 certified.
6. Can it operate on DC power?
Yes, it supports 24 V DC operation.
7. What is the weight of the unit?
Approximately 5.9 kg.
8. Is it suitable for high-humidity environments?
Yes, operates in 5% to 95% RH, non-condensing.
9. Which systems is it compatible with?
Compatible with ProSafe-RS safety controllers.
10. What is the power consumption?
200 VA for 100–120 V AC, 230 VA for 220–240 V AC, and 5.5 A for 24 V DC.
Related Models (Same Series / Related Units)
| Model | Key Parameters |
|---|---|
| SNB10D-223 | 24 V DC, SIL 3, Rack-mounted |
| SNB10D-426 | 220–240 V AC, SIL 3, Rack-mounted |
| SNB10D-430 | 100–120 V AC, SIL 3, Modular I/O support |
| SNB10D-431 | 24 V DC, SIL 2/3, Rack-mounted |
| SNB10D-435 | 220–240 V AC, SIL 3, High redundancy |
| SNB10D-440 | 100–120 V AC, SIL 3, Advanced ESB interface |
Popular Yokogawa Models
| Model | Key Parameters |
|---|---|
| ProSafe-RS S2SC70S | SIL 3, Controller, Redundant ESB support |
| ProSafe-RS S2SC70D | SIL 3, Dual CPU, Redundant ESB |
| ProSafe-RS SSC60S | SIL 2/3, Standard controller |
| ProSafe-RS SSC60D | SIL 2/3, Dual CPU controller |
| SNB10D-401 | Rack-mounted Safety Node, SIL 3 |
| SNB10D-402 | Safety Node with expanded I/O, SIL 3 |
