What are rib relays?

What are rib relays?

The Functional Devices Relay In a Box (RIB) Power Series controls most BAS, HVAC, low-horsepower motor and lighting applications. They require modest coil drive current and are used for direct switching and control of heavy electrical circuits, such as large resistive, motor, and lighting loads.

Who makes rib relay?

Functional Devices, Inc.
Functional Devices, Inc.

How do you test a rib relay?

Verify coil operation Apply 120 Vac to the Wht/Blk and Wht/Yel wires. When doing so, listen for a “click” sound (some models are louder than others). This sound is the relay state changing, and it can be heard when voltage is applied and removed.

What is a pilot relay?

Pilot relaying refers to any relaying scheme employing a communication network between relays, at different substations, to transmit “trip or don’t trip” signal. The intent here is to trip the circuit breakers as fast as possible. In the past, the relays communicated over the copper wire that directly tied them.

How does rib relay work?

1 and requires a single Relay in a Box® (RIB®). When the wall switch is in the ON position, the light is powered, and the coil of model RIB2402B is energized. This pulls in the Normally Open (N/O) contact of the relay, allowing 120 Vac power to turn on the fan.

What is an ice cube relay?

These general purpose plug-in relays, also known as ice cube relays, are power relays designed for applications demanding high power control in various factory machines and control panels. Small package design. Relay coil voltages of 110/ 120 VAC, 220 VAC, 12V AC/DC, 24V AC/DC.

What is dry contact relay?

Dry contact can refer to a secondary set of contacts of a relay circuit which does not make or break the primary current being controlled by the relay. Dry contacts means a relay that does not use mercury-wetted contacts.

What is a pilot duty relay used for?

These prewired, general purpose relays can be used for controlling high-voltage appliances with low-voltage signals, such as exhaust fans, vacuums, and motors.

What is sugar cube relay?

Product Description. These are high quality Single Pole – Double Throw (SPDT) sealed 12V Sugar Cube relays. Use them to switch high voltage (240AC) , and/or high current devices(7A). This relay”s coil is rated up to 14V, with a minimum switching voltage of 10V. The contacts are rated up to 7A @250VAC and 7A @24VDC.

How are ribu1c relays used in a box?

The RIB Relay in a box pilot series (includes RIBU1C, RIBU2C, RIBH1C, RIBH2C, RIBH1S and more) has 10A relay contacts and is used to control light electrical loads, dirve power relays or contactors, or sense the voltage being fed to electrical loads.

What are the functions of a rib relay?

The Functional Devices RIB Relay In a Box Pilot Series controls most Building Automation Systems, BAS, HVAC, low-horsepower motor and lighting applications.

Can a ribu1c be used as an AC fan?

The RIB Relays are really well designed. The units can be switched with 120 Volts AC or 10-30 Volts DC. Easy to mount, decent installation information and mounted in a sturdy little box. I’m using a RIBU1C to control my Home Heater/AC unit in conjunction with a Whole House Fan.

How are coil drive wires secured in a ribt?

The coil drive wires are secured to screw terminals within a separate wiring compartment in the RIBT. Most of the RIBs in the Power Series are also available in the T Series. Each relay is a proven performer in Building Automation Systems, BAS, applications.