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Yokogawa RB401‑S4
- Product Name: Relay Output Module, RB401 Series
- Product Brief: Yokogawa DCS system‑compatible relay output module, used for switching control of on‑site valves, contactors, and auxiliary equipment in industrial automation systems.
- Technical Specifications:
- Output Type: Electromagnetic relay contact output
Detailed content
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- Contact Rating: 250 VAC/30 VDC, 5 A resistive load per channel
- Channel Quantity: Multi‑channel isolated relay outputs
- Insulation Resistance: ≥100 MΩ
- Dielectric Strength: 2000 VAC for 1 minute
- Functional Features: Contact status feedback, over‑current protection, surge suppression, channel isolation, status monitoring
- Performance Parameters: Relay mechanical life = ≥10⁷ operations, electrical life = ≥10⁵ operations at rated load, operating temperature = 0–60 °C
- Material Composition: Copper alloy relay contacts, flame‑retardant plastic module housing, anti‑surge varistors, industrial‑grade PCB
- Structural Characteristics: Rack‑mount modular structure, front‑panel status indicators, screw‑type wiring terminals, backplane bus connection
- Working Principle: Receives control commands from DCS main controller, drives internal electromagnetic relays to open/close contacts, realizing on‑site equipment switching control
- Advantage Highlights: High‑load contact capacity, strong anti‑surge performance, high insulation safety, direct drive capability for field actuators
- Applicable Industries: Petrochemical, power station auxiliary control, water treatment plants, chemical fertilizer production, building automation
- Model Series: RB401 relay output module series
- Installation Requirements: Installed in DCS control cabinet racks, maintain dry environment, separate high‑voltage power wiring from control wiring
- Usage Precautions: Do not exceed rated contact load; use surge suppressors for inductive loads; regularly inspect relay contact wear
