DSER2N 24-230V 8Pin Intermediate relay With Test Button 10A/250VAC
DENKI SEIGYO – DSER2N Intermediate Relay (24–230V, 8-Pin, with Test Button)
Type: General-Purpose Industrial Intermediate Relay
Configuration: 1 Changeover (1C) / 2 Changeover (2C)
Overview
The Denki Seigyo DSER2N Series is a compact and high-performance intermediate relay designed for industrial control panels and automation systems. It supports a wide operating voltage range of 24–230V AC/DC, making it suitable for versatile applications. Available in both 1C and 2C contact configurations, the relay includes a manual test button and LED indicator for quick circuit verification and operational monitoring.

Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | DSER2N / DSER4N |
| Type | Intermediate Electromagnetic Relay |
| Coil Rated Voltage | 24VDC / 110VAC / 220VAC (24–230V universal range type available) |
| Coil Voltage Range | 80% to 110% of rated voltage |
| Coil Consumption | Approx. 0.9 – 1.2 W (DC) / 1.2 VA (AC) |
| Contact Configuration | 1C (SPDT) / 2C (DPDT) |
| Contact Rating | 10A at 250VAC / 30VDC (Resistive Load) |
| Contact Material | Silver Alloy |
| Max Switching Voltage | 250VAC / 30VDC |
| Max Switching Current | 10A |
| Contact Resistance | ≤100 mΩ |
| Operate Time | ≤20 ms |
| Release Time | ≤10 ms |
| Dielectric Strength | 2000VAC (Coil–Contact, 1 min) |
| Insulation Resistance | ≥100 MΩ (at 500VDC) |
| Mechanical Life | 10 million operations |
| Electrical Life | 100,000 operations (at rated load) |
| Ambient Temperature | -25°C to +70°C |
| Storage Temperature | -30°C to +85°C |
| Operating Humidity | 45–85% RH (non-condensing) |
| Mounting Type | Plug-in (8-Pin Base) |
| Pin Configuration | Standard 8-Pin DIN Type |
| Indicator | Built-in LED indicator |
| Test Function | Manual test button with latch/unlatch option |
| Protection Features | Coil surge suppression (DC type) / Dustproof transparent cover |
| Vibration Resistance | 10–55 Hz, 1.5 mm amplitude |
| Shock Resistance | 100 m/s² |
| Weight | Approx. 50 g |
| Certifications | CE, RoHS compliant |
Key Features
-
Wide coil voltage range: 24–230V AC/DC
-
Available in 1C or 2C changeover contact types
-
Built-in LED indicator for status monitoring
-
Manual test button for quick function checks
-
Compact 8-pin plug-in design for easy replacement
-
High contact reliability with silver alloy contacts
-
Long electrical and mechanical life for industrial use
Applications
-
Control panels and automation systems
-
PLC interface and signal switching
-
Machine tools and industrial machinery
-
Process control equipment
-
HVAC and lighting systems
-
Auxiliary and interlocking circuits
Mechanical Dimensions
| Width | 27 mm |
| Height | 36 mm |
| Depth | 21 mm |
| Pin Type | 8-Pin (DIN Base) |
Ordering Information
| Model | Coil Voltage | Contact Form | Indicator / Test Button |
|---|---|---|---|
| DSER2N-24DC | 24VDC | 1C (SPDT) | LED + Test Button |
| DSER4N-24DC | 24VDC | 2C (DPDT) | LED + Test Button |
| DSER2N-220AC | 220VAC | 1C (SPDT) | LED + Test Button |
| DSER4N-220AC | 220VAC | 2C (DPDT) | LED + Test Button |
