Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DS1H8-5A |
| Type | 8-Channel Relay Output Module |
| Manufacturer | Denki Seigyo |
| Number of Channels | 8 Independent Relays |
| Control Voltage | 24VDC |
| Relay Type | SPDT (1C) Mechanical Relay |
| Contact Rating | 5A @ 250VAC / 30VDC (Resistive Load) |
| Contact Material | Silver Alloy |
| Coil Power Consumption | Approx. 0.8W per channel |
| Optocoupler Isolation | Yes – galvanic separation between input and load |
| Input Signal Type | DC logic (Low active / Sink input) |
| Response Time | Operate ≤ 10 ms / Release ≤ 5 ms |
| LED Indicator | 8 × LED (one per relay channel) |
| Protection Features | Flyback diode, surge suppression, over-voltage protection |
| Wiring Type | Screw terminal block |
| Terminal Pitch | 5.08 mm (industrial standard) |
| Housing Colour | Industrial Grey |
| Housing Material | Flame-retardant ABS / PC |
| PCB Material | FR-4, 1.6 mm, copper trace 2 oz |
| Isolation Resistance | ≥ 100 MΩ @ 500VDC |
| Dielectric Strength | 2000VAC between coil and contact |
| Operating Voltage Range | 19–28VDC |
| Ambient Temperature | −25°C to +70°C |
| Storage Temperature | −30°C to +85°C |
| Humidity Range | 45–85% RH (non-condensing) |
| Mounting Type | Panel or DIN Rail (optional adapter) |
| Dimensions (L × W × H) | Approx. 140 × 72 × 22 mm |
| Weight | Approx. 180 g |
| Compliance | CE, RoHS |
Key Features
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8-channel relay module with 24VDC logic control
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5A load capacity per channel for AC/DC switching
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Optically isolated inputs for signal protection
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Compact grey housing for professional panel design
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LED status indicators simplify troubleshooting
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Screw terminals for secure, vibration-resistant connections
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Long electrical and mechanical lifespan
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Compatible with PLCs, microcontrollers, and I/O systems
Applications
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Industrial automation and control systems
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PLC output expansion modules
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Building management and lighting systems
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Process monitoring and machinery interfaces
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Energy management and control panels
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Instrumentation and signaling circuits
Ordering Information
| Model | Control Voltage | Channels | Relay Type | Load Capacity | Housing Colour | Wiring Type | Indicator |
|---|---|---|---|---|---|---|---|
| DS1H8-5A | 24VDC | 8 Channels | SPDT (1C) | 5A @ 250VAC / 30VDC (Each) | Grey | Screw Terminal | LED per Channel |
Product Summary
The Denki Seigyo DS1H8-5A 8-Channel 24VDC Relay Module combines high reliability, compact design, and industrial-grade performance.
With 5A load capacity per channel, optocoupler isolation, and secure screw terminal wiring, it’s an ideal solution for PLC control, automation panels, and industrial machinery.
Encased in a durable grey enclosure, the DS1H8-5A delivers safety, stability, and Denki Seigyo’s trusted quality for modern industrial systems.
