
IDEC Relays RH1B-UDC12V Relay
The IDEC RH1B-UDC12V is a rugged, compact 12VDC power relay designed for reliable switching in demanding HVACR and industrial control panels. This SPDT relay (1 Form C) features a high 10A contact capacity, making it a dependable choice for pilot duty or direct load control where space is limited. Built within the IDEC RH Series, it utilizes silver cadmium oxide (AgCdO) contacts to provide excellent conductivity and resistance to contact welding, ensuring stable operation over a long service life. The five blade terminals are designed for secure socket mounting (compatible with SH1B-05 or DIN-mount sockets), allowing for rapid replacement and reduced downtime in the field.
Engineered to withstand harsh environments, this miniature midget relay operates within a wide temperature range of -25°C to +70°C. Technical professionals will appreciate the 12V DC non-latching coil which draws approximately 64 mA (188 Ohm resistance), ensuring low power consumption in multi-relay configurations. With a maximum response time of 20ms and high dielectric strength (2000VAC between coil and contacts), the RH1B-UDC12V delivers the precision and safety required for machine control, energy management, and sequential automation tasks. This plug-in relay offers a space-saving solution without compromising the heavy-duty performance expected in commercial HVAC and industrial electrical systems.
Key Benefits- High Switching Capacity: Handles up to 10A resistive loads at 110VAC or 30VDC, ideal for controlling motors, heaters, and lighting.
- Compact Midget Design: Small footprint saves valuable rail space in crowded control cabinets and HVAC equipment.
- Durable Contacts: Silver Cadmium Oxide material provides superior arc resistance and high electrical durability (over 200,000 operations).
- Standardized Mounting: Blade style terminals ensure compatibility with industry-standard sockets for simplified installation and maintenance.
What is the proper socket for the RH1B-UDC12V?
This relay typically mounts into SH1B-05 or SH1B-05C sockets for DIN-rail or surface mounting. Always verify the terminal layout (blade style) matches your existing base.
Can I use this for 24V control circuits?
No, this specific model requires a 12V DC coil signal for actuation. Running it on a 24V system will damage the coil; please ensure your control transformer provides the correct DC voltage.
Does this unit include a status LED or check button?
The base RH1B-UDC12V model is a standard power relay without a built-in indicator light or manual test button. If your application requires visual diagnostics, look for the 'L' or 'C' suffix versions in the IDEC catalog.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $12.23
-65%$12.23
$4.28IDEC Relays RH1B-UDC12V Relay
The IDEC RH1B-UDC12V is a rugged, compact 12VDC power relay designed for reliable switching in demanding HVACR and industrial control panels. This SPDT relay (1 Form C) features a high 10A contact capacity, making it a dependable choice for pilot duty or direct load control where space is limited. Built within the IDEC RH Series, it utilizes silver cadmium oxide (AgCdO) contacts to provide excellent conductivity and resistance to contact welding, ensuring stable operation over a long service life. The five blade terminals are designed for secure socket mounting (compatible with SH1B-05 or DIN-mount sockets), allowing for rapid replacement and reduced downtime in the field.
Engineered to withstand harsh environments, this miniature midget relay operates within a wide temperature range of -25°C to +70°C. Technical professionals will appreciate the 12V DC non-latching coil which draws approximately 64 mA (188 Ohm resistance), ensuring low power consumption in multi-relay configurations. With a maximum response time of 20ms and high dielectric strength (2000VAC between coil and contacts), the RH1B-UDC12V delivers the precision and safety required for machine control, energy management, and sequential automation tasks. This plug-in relay offers a space-saving solution without compromising the heavy-duty performance expected in commercial HVAC and industrial electrical systems.
Key Benefits- High Switching Capacity: Handles up to 10A resistive loads at 110VAC or 30VDC, ideal for controlling motors, heaters, and lighting.
- Compact Midget Design: Small footprint saves valuable rail space in crowded control cabinets and HVAC equipment.
- Durable Contacts: Silver Cadmium Oxide material provides superior arc resistance and high electrical durability (over 200,000 operations).
- Standardized Mounting: Blade style terminals ensure compatibility with industry-standard sockets for simplified installation and maintenance.
What is the proper socket for the RH1B-UDC12V?
This relay typically mounts into SH1B-05 or SH1B-05C sockets for DIN-rail or surface mounting. Always verify the terminal layout (blade style) matches your existing base.
Can I use this for 24V control circuits?
No, this specific model requires a 12V DC coil signal for actuation. Running it on a 24V system will damage the coil; please ensure your control transformer provides the correct DC voltage.
Does this unit include a status LED or check button?
The base RH1B-UDC12V model is a standard power relay without a built-in indicator light or manual test button. If your application requires visual diagnostics, look for the 'L' or 'C' suffix versions in the IDEC catalog.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The IDEC RH1B-UDC12V is a rugged, compact 12VDC power relay designed for reliable switching in demanding HVACR and industrial control panels. This SPDT relay (1 Form C) features a high 10A contact capacity, making it a dependable choice for pilot duty or direct load control where space is limited. Built within the IDEC RH Series, it utilizes silver cadmium oxide (AgCdO) contacts to provide excellent conductivity and resistance to contact welding, ensuring stable operation over a long service life. The five blade terminals are designed for secure socket mounting (compatible with SH1B-05 or DIN-mount sockets), allowing for rapid replacement and reduced downtime in the field.
Engineered to withstand harsh environments, this miniature midget relay operates within a wide temperature range of -25°C to +70°C. Technical professionals will appreciate the 12V DC non-latching coil which draws approximately 64 mA (188 Ohm resistance), ensuring low power consumption in multi-relay configurations. With a maximum response time of 20ms and high dielectric strength (2000VAC between coil and contacts), the RH1B-UDC12V delivers the precision and safety required for machine control, energy management, and sequential automation tasks. This plug-in relay offers a space-saving solution without compromising the heavy-duty performance expected in commercial HVAC and industrial electrical systems.
Key Benefits- High Switching Capacity: Handles up to 10A resistive loads at 110VAC or 30VDC, ideal for controlling motors, heaters, and lighting.
- Compact Midget Design: Small footprint saves valuable rail space in crowded control cabinets and HVAC equipment.
- Durable Contacts: Silver Cadmium Oxide material provides superior arc resistance and high electrical durability (over 200,000 operations).
- Standardized Mounting: Blade style terminals ensure compatibility with industry-standard sockets for simplified installation and maintenance.
What is the proper socket for the RH1B-UDC12V?
This relay typically mounts into SH1B-05 or SH1B-05C sockets for DIN-rail or surface mounting. Always verify the terminal layout (blade style) matches your existing base.
Can I use this for 24V control circuits?
No, this specific model requires a 12V DC coil signal for actuation. Running it on a 24V system will damage the coil; please ensure your control transformer provides the correct DC voltage.
Does this unit include a status LED or check button?
The base RH1B-UDC12V model is a standard power relay without a built-in indicator light or manual test button. If your application requires visual diagnostics, look for the 'L' or 'C' suffix versions in the IDEC catalog.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












