The Functional Devices RIBU1C is an enclosed pilot control relay designed for commercial HVAC, building automation, industrial control, and fire alarm interface applications. Specifically, it provides dependable switching through a single-pole double-throw (SPDT) relay housed inside a durable NEMA 1 enclosure. This product is intended for professional low-voltage and line-voltage control applications and is not surveillance equipment, communications equipment, consumer electronics, or recording devices.

Built for dependable long-term performance, the RIBU1C combines a multi-voltage coil, pre-wired leads, integrated LED status indication, and a compact enclosure that simplifies installation while reducing labor time. Furthermore, its versatile design makes it suitable for a wide variety of commercial control systems.

Product Functions

The Functional Devices RIBU1C supports commercial control systems by providing:

• SPDT relay switching
• Multi-voltage coil operation
• Pre-wired installation
• LED relay status indication
• Isolation between control and load circuits
• Reliable switching for HVAC, BAS, lighting, and fire alarm interface applications
• Continuous-duty relay operation

Electrical & System Information

The RIBU1C accepts either 10–30 VAC/DC or 120 VAC coil input, allowing installers to use a single relay across multiple control systems. Furthermore, the relay provides 10 Amp SPDT contacts suitable for switching a variety of commercial electrical loads.

Its flexible input voltage and pre-wired design simplify replacement and new installations while reducing field wiring time. Always verify electrical compatibility before installation.

Features

Multi-Voltage Coil

The relay accepts 10–30 VAC/DC or 120 VAC control signals. As a result, one model supports numerous commercial control applications without requiring multiple relay types.

10 Amp SPDT Contacts

The RIBU1C features one continuous-duty SPDT relay rated for 10 Amp resistive loads. Consequently, it can control lighting, HVAC equipment, dampers, pumps, and other commercial devices.

Integrated LED Indicator

An onboard LED clearly indicates when the relay coil is energized. Therefore, technicians can quickly verify relay operation during installation and troubleshooting.

Pre-Wired Design

Factory-installed color-coded leads eliminate the need for terminal strip assembly. In addition, installers can complete wiring more quickly while reducing installation errors.

Compact Enclosed Housing

The durable NEMA 1 enclosure protects the relay and wiring while providing convenient hub or surface mounting for commercial installations.

Mounting & Design

The Functional Devices RIBU1C features a compact NEMA 1 plastic enclosure with an integrated ½-inch NPT conduit hub for secure installation. Furthermore, the enclosure supports both hub-mounted and surface-mounted applications while protecting internal components from accidental contact.

Its compact footprint makes the relay ideal for control panels, junction boxes, HVAC equipment, and building automation installations.

Protection & Applications

The RIBU1C is designed for commercial and industrial control systems requiring dependable relay switching.

Typical applications include:

• HVAC control systems
• Building automation systems (BAS)
• Fire alarm interface circuits
• Lighting control
• Fan control
• Pump control
• Damper control
• Industrial automation
• Energy management systems

Always install the relay according to local electrical codes and the manufacturer’s installation instructions.

Compatibility

The Functional Devices RIBU1C is compatible with commercial HVAC controls, building automation systems, fire alarm interface circuits, lighting controls, and other low-voltage or line-voltage control equipment operating within the specified electrical ratings.

Before purchasing or installing this relay, verify compatibility with the intended control system and load requirements.

Technical Specifications

Manufacturer: Functional Devices, Inc.

Model: RIBU1C

Product Type: Enclosed Pilot Control Relay

Relay Type: Single Pole Double Throw (SPDT)

Contact Rating: 10 Amp Resistive @ 277 VAC

Contact Rating: 10 Amp Resistive @ 28 VDC

Pilot Duty Rating: 480 VA @ 240–277 VAC

Coil Input Voltage: 10–30 VAC/DC or 120 VAC

Frequency: 50/60 Hz

Relay Status Indicator: LED

Housing: NEMA 1 Plastic Enclosure

Mounting: Surface Mount or ½-Inch NPT Hub Mount

Operating Temperature: -30°F to 140°F (-34°C to 60°C)

Humidity: 5–95% Non-Condensing

Dimensions: 2.80 × 1.70 × 1.50 in

Wire Leads: 16 in, 600 V Rated

Approvals: UL Listed, C-UL, CE, RoHS (verify certifications for your application)

Warranty: 10 Years

Always verify technical specifications using the manufacturer’s official documentation before installation.

Applications

The Functional Devices RIBU1C is commonly used in commercial control systems serving:

• Office Buildings
• Schools
• Hospitals
• Hotels
• Manufacturing Facilities
• Warehouses
• Data Centers
• Retail Buildings
• Mechanical Rooms
• Industrial Plants
• Building Automation Systems

Before installation, verify compliance with local electrical codes, project specifications, and manufacturer recommendations to ensure proper system operation.