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RIB RIB2421C Enclosed Pre-Wired Relay, 10 A, SPDT, 0.50 in NPT - General Purpose Power Relays
RIBGeneral Purpose Power Relays

RIB RIB2421C Enclosed Pre-Wired Relay, 10 A, SPDT, 0.50 in NPT

The RIB Enclosed Pre-Wired Relay is a general purpose power relay from RIB, featuring a 10 A rating and SPDT contact configuration. This model (MPN RIB2421C) includes a 0.50 in NPT nipple size for installation.

SKU 3G-OTH-37609

Brand
RIB
Item
RIB2421C Enclosed Pre-Wired Relay, 10 A, SPDT, 0.50 in NPT
Part Number
RIB2421C
Category
General Purpose Power Relays
Available to Order
Also known as:RIB2421CRIB
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Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

RIB
Manufacturer Part Number
RIB2421C
Nipple Size
0.50 in NPT

Technical Documents

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RIB Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RIB Enclosed Pre-Wired Relay is a general purpose power relay from RIB, featuring a 10 A rating and SPDT contact configuration. This model (MPN RIB2421C) includes a 0.50 in NPT nipple size for installation.

Frequently Asked Questions

What is the RIB Enclosed Pre-Wired Relay used for?

The RIB Enclosed Pre-Wired Relay is a general purpose power relay used for switching electrical loads in HVAC, lighting, and industrial control panels. Its SPDT contact configuration and 10 A rating make it suitable for on/off control of motors, pumps, and other equipment in commercial and light industrial applications.

What are the specifications of the RIB2421C relay?

The RIB2421C is an enclosed pre-wired relay from RIB with a 10 A rating and SPDT contact configuration. It features a 0.50 in NPT nipple size for conduit mounting. The relay is designed for general purpose power switching and is pre-wired for easy installation in control panels and junction boxes.

Where to buy the RIB2421C relay worldwide?

3G Electric supplies the RIB2421C relay worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this RIB relay to any country.

How to install the RIB Enclosed Pre-Wired Relay?

Install the RIB relay by mounting it through a 0.50 in NPT knockout in a junction box or panel. Secure the nipple with a locknut, then connect the pre-wired leads to your control circuit and load. Ensure the supply voltage matches the relay coil rating and that the load does not exceed 10 A. Follow local electrical codes.

Used in

Common applications for RIB
HVAC control — RIB enclosed pre-wired relays (e.g., RIB2421C) for switching fan coils and damper actuators
Lighting control — RIB wireless relays (RIBW208B-EN3) for remote switching of high-bay or parking lot lighting
Pump monitoring — RIB adjustable current sensing relay (RIBXKTA) for detecting dry-run conditions in water pumps
Process automation — RIB 3PST-NO relays (RIB013P) for interlocking conveyor systems or motor starters
Building management — RIB wireless transmitter/receiver pairs for retrofitting legacy control panels without new wiring
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RIB Products

3G Electric supplies RIB general purpose power relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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General purpose power relay with a 20 A rating and SPDT contact configuration. Coil voltage is 24V AC/DC/120V AC. Enclosed and pre-wired with a 0.50 in NPT nipple for conduit mounting. Suitable for switching loads in HVAC, lighting, and industrial control panels
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General purpose power relay with a 20 A rating and SPDT contact configuration. Coil voltage is 24V AC/DC/120V AC. Enclosed and pre-wired with a 0.50 in NPT nipple for conduit mounting. Suitable for switching loads in HVAC, lighting, and industrial control panels
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Enclosed pre-wired relay with SPDT contacts and 10 A rating. Coil voltage accepts 10-30V AC/DC or 120V AC. Features a 0.50 in NPT nipple for conduit mounting. Suitable for on/off control of motors, pumps, solenoid valves, and lighting in commercial and industrial applications

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