Technical Specifications
| Parameter | Specification |
|---|---|
| Model | DSRX1CO / DSRX2CO |
| Type | Electromechanical Power Relay |
| Manufacturer | Denki Seigyo |
| Contact Configuration | SPDT (1C) / DPDT (2C) |
| Number of Pins | 8-Pin |
| Rated Coil Voltage | 24VDC / 220VAC |
| Coil Power Consumption | Approx. 1.2 W (DC) / 1.5 VA (AC) |
| Rated Load Current | 16A (1C) / 12A (2C) |
| Load Voltage Range | 24–250VAC / 5–30VDC |
| Contact Rating | 16A @ 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 | 2000 VAC (Coil–Contact, 1 min) |
| Mechanical Life | ≥10 million operations (no load) |
| Electrical Life | ≥100,000 operations (rated load) |
| Ambient Temperature | -25°C to +70°C |
| Storage Temperature | -30°C to +85°C |
| Mounting Type | Plug-in (Socket Mount) |
| Indicator Option | LED Indicator + Test Button (optional) |
| Protection | Dustproof transparent housing |
| Dimensions (L × W × H) | Approx. 35 × 27 × 21 mm |
| Weight | Approx. 50 g |
| Compliance | CE, RoHS |
Key Features
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High-capacity contact rating for industrial power switching
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Wide coil voltage range: 24VDC / 220VAC models
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Available with LED indicator and test button for easy status check
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8-pin plug-in base compatible with standard DIN sockets
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Excellent mechanical endurance and switching stability
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Robust construction for vibration and corrosion resistance
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Easy maintenance and inspection with clear housing
Applications
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Industrial automation panels
-
Process control systems
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Machine tools and motor control circuits
-
HVAC and compressor control
-
Power distribution and switching panels
-
PLC interfaces and auxiliary circuits
Ordering Information
| Model | Coil Voltage | Contact Type | Load Capacity | Mounting | Indicator Option |
|---|---|---|---|---|---|
| DSRX1CO-24DC | 24VDC | SPDT (1C) | 16A @ 250VAC / 30VDC | 8-Pin Socket | LED + Test Button (Optional) |
| DSRX2CO-24DC | 24VDC | DPDT (2C) | 12A @ 250VAC / 30VDC | 8-Pin Socket | LED + Test Button (Optional) |
| DSRX1CO-220AC | 220VAC | SPDT (1C) | 16A @ 250VAC / 30VDC | 8-Pin Socket | LED + Test Button (Optional) |
| DSRX2CO-220AC | 220VAC | DPDT (2C) | 12A @ 250VAC / 30VDC | 8-Pin Socket | LED + Test Button (Optional) |
Product Summary
The Denki Seigyo DSRX1CO/2CO 8-Pin Relay is a high-performance industrial power relay offering 16A / 12A switching capacity, wide voltage compatibility, and reliable control operation.
Its rugged design, LED indication, and test functionality make it an ideal choice for automation systems, power management, and machinery control — ensuring efficiency, durability, and safety in every application.

