
Functional Devices RIBL24B Relay
For high-demand commercial HVACR and building automation projects, the Functional Devices RIBL24B Relay provides a robust solution for switching 20-amp loads with a low-voltage 24V signal. As an enclosed mechanically latching relay, this unit is engineered for energy efficiency; the contacts remain in their last known state during a power loss, eliminating the constant coil draw associated with standard pilot relays. This SPST configuration is ideal for lighting control, motor switching, and circuit logic where maintaining state without continuous excitation is required by the sequence of operations.
The RIB latching relay 20A is housed in a NEMA 1 plenum rated enclosure, pre-wired with 16-inch leads to reduce install time in the field. It handles a wide range of contact ratings, including 20 Amp Resistive at 277 Vac and up to 3 HP at 240 Vac, making it a versatile "truck-stock" component for industrial power management. Contractors typically utilize the Functional Devices RIBL24B in 24V HVAC control circuits to interface with building management systems (BMS) or pulse-command controllers, ensuring reliable SPST relay switching without risk of overheating the control transformer under heavy relay-logic loads.
Key Benefits for Contractors- Mechanical Latching Logic: Maintains contact position (On/Off) during power cycles, perfect for mission-critical status retention.
- High-Amperage Capacity: Rated for 20A ballast and resistive loads, supporting heavy-duty lighting and motor applications.
- Reduced Power Consumption: Zero coil current draw once the relay is latched, significantly lowering heat generation in control panels.
- Quick Installation: Features a 0.5-inch NPT nipple and pre-stripped 600V rated wires for fast mounting to standard electrical knockouts.
How is the RIBL24B different from a standard RIB relay?
Unlike standard magnetic relays, the RIBL24B latching relay uses a dual-coil design. A pulse to the "latch" wires closes the contact, and it stays closed until a pulse is sent to the "unlatch" wires, even if control power is disconnected.
Can this relay be used in plenum spaces?
Yes, the enclosed 24V relay is UL listed and plenum rated, allowing for safe installation above drop ceilings or within air handling ducts.
What is the maximum pulse duration for the coil?
To prevent coil damage, signal pulses should be kept between 50ms and 30 seconds. Continuous voltage should not be applied to the latch/unlatch coils.
This item is not eligible for free shipping.
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.
Functional Devices RIBL24B Relay
For high-demand commercial HVACR and building automation projects, the Functional Devices RIBL24B Relay provides a robust solution for switching 20-amp loads with a low-voltage 24V signal. As an enclosed mechanically latching relay, this unit is engineered for energy efficiency; the contacts remain in their last known state during a power loss, eliminating the constant coil draw associated with standard pilot relays. This SPST configuration is ideal for lighting control, motor switching, and circuit logic where maintaining state without continuous excitation is required by the sequence of operations.
The RIB latching relay 20A is housed in a NEMA 1 plenum rated enclosure, pre-wired with 16-inch leads to reduce install time in the field. It handles a wide range of contact ratings, including 20 Amp Resistive at 277 Vac and up to 3 HP at 240 Vac, making it a versatile "truck-stock" component for industrial power management. Contractors typically utilize the Functional Devices RIBL24B in 24V HVAC control circuits to interface with building management systems (BMS) or pulse-command controllers, ensuring reliable SPST relay switching without risk of overheating the control transformer under heavy relay-logic loads.
Key Benefits for Contractors- Mechanical Latching Logic: Maintains contact position (On/Off) during power cycles, perfect for mission-critical status retention.
- High-Amperage Capacity: Rated for 20A ballast and resistive loads, supporting heavy-duty lighting and motor applications.
- Reduced Power Consumption: Zero coil current draw once the relay is latched, significantly lowering heat generation in control panels.
- Quick Installation: Features a 0.5-inch NPT nipple and pre-stripped 600V rated wires for fast mounting to standard electrical knockouts.
How is the RIBL24B different from a standard RIB relay?
Unlike standard magnetic relays, the RIBL24B latching relay uses a dual-coil design. A pulse to the "latch" wires closes the contact, and it stays closed until a pulse is sent to the "unlatch" wires, even if control power is disconnected.
Can this relay be used in plenum spaces?
Yes, the enclosed 24V relay is UL listed and plenum rated, allowing for safe installation above drop ceilings or within air handling ducts.
What is the maximum pulse duration for the coil?
To prevent coil damage, signal pulses should be kept between 50ms and 30 seconds. Continuous voltage should not be applied to the latch/unlatch coils.
This item is not eligible for free shipping.
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
For high-demand commercial HVACR and building automation projects, the Functional Devices RIBL24B Relay provides a robust solution for switching 20-amp loads with a low-voltage 24V signal. As an enclosed mechanically latching relay, this unit is engineered for energy efficiency; the contacts remain in their last known state during a power loss, eliminating the constant coil draw associated with standard pilot relays. This SPST configuration is ideal for lighting control, motor switching, and circuit logic where maintaining state without continuous excitation is required by the sequence of operations.
The RIB latching relay 20A is housed in a NEMA 1 plenum rated enclosure, pre-wired with 16-inch leads to reduce install time in the field. It handles a wide range of contact ratings, including 20 Amp Resistive at 277 Vac and up to 3 HP at 240 Vac, making it a versatile "truck-stock" component for industrial power management. Contractors typically utilize the Functional Devices RIBL24B in 24V HVAC control circuits to interface with building management systems (BMS) or pulse-command controllers, ensuring reliable SPST relay switching without risk of overheating the control transformer under heavy relay-logic loads.
Key Benefits for Contractors- Mechanical Latching Logic: Maintains contact position (On/Off) during power cycles, perfect for mission-critical status retention.
- High-Amperage Capacity: Rated for 20A ballast and resistive loads, supporting heavy-duty lighting and motor applications.
- Reduced Power Consumption: Zero coil current draw once the relay is latched, significantly lowering heat generation in control panels.
- Quick Installation: Features a 0.5-inch NPT nipple and pre-stripped 600V rated wires for fast mounting to standard electrical knockouts.
How is the RIBL24B different from a standard RIB relay?
Unlike standard magnetic relays, the RIBL24B latching relay uses a dual-coil design. A pulse to the "latch" wires closes the contact, and it stays closed until a pulse is sent to the "unlatch" wires, even if control power is disconnected.
Can this relay be used in plenum spaces?
Yes, the enclosed 24V relay is UL listed and plenum rated, allowing for safe installation above drop ceilings or within air handling ducts.
What is the maximum pulse duration for the coil?
To prevent coil damage, signal pulses should be kept between 50ms and 30 seconds. Continuous voltage should not be applied to the latch/unlatch coils.
This item is not eligible for free shipping.
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.












