DURAKOOL DG55M Series Automotive Relay 48VDC 40A SPST-NO
DURAKOOL DG55M 48VDC 40A SPST-NO automotive relay with IP54 cover. For electric vehicle and high-current DC switching.
The DURAKOOL DG55M Series Automotive Relay is a high-performance Mini-ISO style relay engineered specifically for demanding electric vehicle and automotive DC switching applications. Optimised for operation up to 110VDC, it provides a robust and reliable solution for controlling high-current circuits.
This relay features a unique terminal arrangement designed for compatibility with standard Mini-ISO sockets, ensuring easy installation and replacement. The use of silver tin oxide (AgSnO2) contact material ensures excellent conductivity and durability, even under frequent switching cycles. The SPST-NO (Single Pole Single Throw, Normally Open) contact configuration is ideal for standard on/off control functions.
Key features include an integral suppression diode across terminals 85 and 86, which protects sensitive control circuits from voltage spikes generated by the relay coil. The quick-connect flat blade terminals (6.35mm) facilitate secure and straightforward wiring. The relay is supplied with an IP54-rated dust cover, offering protection against dust and water splashes, making it suitable for use in harsh under-bonnet or industrial environments.
With a nominal coil voltage of 48VDC and a coil resistance of 1152 ohm (±10%), it delivers fast switching with an operate time of 10 milliseconds and a release time of 12 milliseconds. It is capable of switching a maximum voltage of 110VDC and a substantial current of 40A, with a minimum switching load of 1A at 5VDC. Built to withstand extreme conditions, it operates reliably across an ambient temperature range from -40°C to +85°C.
Specifications at a Glance
- Contact Configuration: SPST-NO (1 Form A)
- Nominal Coil Voltage: 48VDC
- Maximum Switching Current: 40A
- Maximum Switching Voltage: 110VDC
- Contact Material: Silver Tin Oxide (AgSnO2)
- Termination: Quick-connect flat blades (6.35mm)
- Electric vehicle (EV) power systems
- Automotive DC switching applications
- High-current circuit control in vehicles
- Commercial vehicle electrical systems
- Product Range: DG55M Series
- Contact Configuration: SPST-NO (Single Pole Single Throw, Normally Open)
- Coil Voltage: 48VDC nominal
- Contact Current: 40A
- Maximum Switching Voltage: 110VDC
- Minimum Switching Current: 1A at 5VDC
- Coil Resistance: 1152 ohm (±10%)
- Contact Material: Silver Tin Oxide (AgSnO2)
- Mounting Style: Plug In (Mini-ISO)
- Terminal Type: Quick Connect flat blades (6.35mm)
- Special Feature: Integral suppression diode (terminals 85 & 86)
- Environmental Protection: IP54 dust cover
- Operate Time: 10 milliseconds
- Release Time: 12 milliseconds
- Ambient Temperature Range: -40°C to +85°C
- Dimensions: 25.9mm (L) x 25.9mm (W) x 24.9mm (H)
- Weight: 34 grams
- Relay Mounting: Plug In
- Relay Terminals: Quick Connect
- Contact Voltage DC Nom: 12V
- SVHC: No SVHC (08-Jul-2021)
Always follow local regulations and product guidance.
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