DENKI SEIGYO DSRER2L-D24LT 8Pin Intermediate Relay with LED & Test Button
Manufacturer: Denki Seigyo
The Denki Seigyo DSRER2L-D24LT is a high-quality 8-pin intermediate relay engineered for industrial applications requiring dependable switching, clear operational visibility, and manual testing capabilities.
Available with 1 changeover (SPDT) or 2 changeover (DPDT) contacts, it combines LED indication, test switch functionality, and strong electrical endurance, ensuring smooth performance in demanding automation environments.
Compact and efficient, this relay supports both 24VDC and 220VAC coil voltages, providing design flexibility across multiple control systems.
🔹 Key Features
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Compact 8-pin relay for DIN-socket installation
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Available in 1C (SPDT) and 2C (DPDT) contact types
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LED indicator for power ON / relay ON visualization
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Manual test button for quick circuit verification
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High contact capacity: 10A at 250VAC / 30VDC
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Wide coil voltage range: 24VDC / 110VAC / 220VAC
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Mechanical endurance: up to 10 million operations (1×10⁷ OPS)
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Electrical endurance: up to 100,000 operations (1×10⁵ OPS)
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Transparent housing for easy inspection
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Compatible with standard 8-pin sockets (DIN rail mountable)
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CE and RoHS compliant
🧩 Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DSRER2L-D24LT |
| Type | Intermediate Electromagnetic Relay |
| Manufacturer | Denki Seigyo |
| Contact Configuration | 1C (SPDT) / 2C (DPDT) |
| Number of Pins | 8 |
| Rated Coil Voltage | 24VDC / 220VAC |
| Coil Power Consumption | Approx. 0.9 W (DC) / 1.2 VA (AC) |
| Contact Rating | 10A @ 250VAC / 30VDC (Resistive Load) |
| Contact Material | Silver Alloy |
| Contact Resistance | ≤ 100 mΩ (initial) |
| Operate Time | ≤ 20 ms |
| Release Time | ≤ 10 ms |
| Insulation Resistance | ≥ 100 MΩ at 500VDC |
| Dielectric Strength | 2000VAC (Coil–Contact, 1 min) |
| Mechanical Life | ≥ 10 million operations |
| Electrical Life | ≥ 100,000 operations |
| Ambient Operating Temperature | -25°C to +70°C |
| Mounting Type | Plug-in (8-Pin Socket) |
| Indicator | Built-in LED |
| Test Function | Manual push-button test switch |
| Protection | Dustproof transparent cover |
| Dimensions (L × W × H) | Approx. 27 × 36 × 21 mm |
| Weight | Approx. 50 g |
| Compliance | CE, RoHS |
🔌 Applications
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Industrial automation panels
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PLC and signal interface systems
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Process control and interlocking circuits
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Machine tool control
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HVAC and building automation
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Power distribution and safety monitoring
🏷️ Product Summary
The Denki Seigyo DSRER2L-D24LT 8-Pin Intermediate Relay offers a perfect blend of compact design, visual indication, and manual testing functionality.
Its LED and test button combination enhances operational reliability and simplifies maintenance in control systems.
Available for both 24VDC and 220VAC coils, this relay is ideal for automation, machinery, and industrial control where performance, endurance, and visibility are essential.

