Description
IDEC RH2B-ULD-DC24V 24V DC Power Relay
The **IDEC RH2B-ULD-DC24V** is a compact power relay from IDEC’s RH series. Designed for electrical control and switching circuits, it combines a 24V DC operating coil with a double-pole double-throw (DPDT) contact configuration.
This model includes an indicator and a built-in diode for coil suppression. Its blade-terminal design allows plug-in installation using a compatible relay socket, making it suitable for applications where relay replacement and maintenance need to be straightforward.
Key Product Specifications
– **Brand:** IDEC
– **Model:** RH2B-ULD-DC24V
– **Product type:** Electromechanical power relay
– **Series:** RH
– **Rated coil voltage:** 24V DC
– **Contact configuration:** DPDT, two changeover contacts
– **Contact rating:** Up to 10A under specified conditions
– **Coil suppression:** Built-in diode
– **Operating indicator:** Indicator lamp
– **Terminal type:** Blade terminals
– **Installation:** Plug-in with a compatible relay socket
– **Contact material:** Silver cadmium oxide (AgCdO) for this model specification
– **Typical contact voltage limits:** Confirm the applicable AC and DC ratings in the manufacturer’s datasheet for the intended load
These details are based on IDEC’s official product listing and RH-series documentation. Actual switching limits depend on the load and operating conditions.
Features and Benefits
24V DC Coil
The relay is designed for control circuits that supply a nominal 24V DC coil voltage. Verify the control supply before installation.
DPDT Contact Configuration
Two changeover contacts allow the relay to control two circuits or provide separate switching functions, subject to the contact ratings and circuit design.
Built-In Coil-Suppression Diode
The diode helps limit the voltage spike generated when the DC coil is de-energized, protecting compatible control circuitry.
**Important:** A diode-equipped relay requires correct coil polarity. Follow the manufacturer’s terminal diagram when wiring.
Indicator for Operating Status
The built-in indicator helps technicians check relay operation during inspection and troubleshooting.
Plug-In Blade Terminals
The blade-terminal construction supports installation in a compatible socket, simplifying replacement and servicing.
Typical Applications
Depending on load and circuit requirements, the IDEC RH2B-ULD-DC24V may be used in:
– Industrial automation control panels
– Machine control circuits
– Electrical interface systems
– Relay-based switching circuits
– Control and monitoring equipment
– General-purpose industrial electrical installations
Compatibility and Installation Guidance
Before ordering, confirm the complete part number, 24V DC coil voltage, DPDT contact arrangement, and compatible socket. Do not assume that all RH-series relays have identical terminal arrangements or internal features.
The 10A rating should not be treated as a universal switching rating for every load. Motors, solenoids, transformers, and other inductive loads may have lower allowable switching currents than resistive loads. Check the manufacturer’s ratings and follow the wiring diagram, especially the polarity requirements for the built-in diode.
Source IDEC Relays in the UAE
Dynavation Star Electrical Fittings Trading LLC supplies electrical and industrial components for customers across the UAE. Contact the team to confirm the exact model, current price, and availability for your application.
**Contact Dynavation Star on WhatsApp for the latest price and availability.**

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