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RIB Enclosed Pre-Wired Relay: 20 A Rating, SPDT - Emergency Lighting Bypass/Shunt Relays
RIBEmergency Lighting Bypass/Shunt Relays

RIB Enclosed Pre-Wired Relay: 20 A Rating, SPDT

The RIB Enclosed Pre-Wired Relay (MPN ESR2402B) is an emergency lighting bypass/shunt relay with a 20 A rating and SPDT configuration. It features a 0.50 in NPT nipple size and is supplied by RIB.

SKU 3G-OTH-38898

Brand
RIB
Item
Enclosed Pre-Wired Relay: 20 A Rating, SPDT
Category
Emergency Lighting Bypass/Shunt Relays
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Technical Specifications

RIB
Manufacturer Part Number
ESR2402B
Nipple Size
0.50 in NPT
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RIB Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RIB Enclosed Pre-Wired Relay (MPN ESR2402B) is an emergency lighting bypass/shunt relay with a 20 A rating and SPDT configuration. It features a 0.50 in NPT nipple size and is supplied by RIB.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the RIB Enclosed Pre-Wired Relay ESR2402B used for?

The RIB ESR2402B is an emergency lighting bypass/shunt relay. It is used to override normal lighting controls during a power failure, ensuring emergency lights remain on for safety compliance in commercial and industrial buildings.

What are the specifications of the RIB ESR2402B relay?

The RIB ESR2402B is a 20 A rated, SPDT enclosed pre-wired relay with a 0.50 in NPT nipple size. It is designed for emergency lighting bypass/shunt applications and is manufactured by RIB.

Where to buy the RIB ESR2402B relay worldwide?

3G Electric supplies the RIB ESR2402B relay worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this RIB relay for your project.

How to install the RIB ESR2402B emergency lighting relay?

Install the RIB ESR2402B by mounting it via the 0.50 in NPT nipple in a junction box. Connect the pre-wired leads per the wiring diagram for SPDT shunt operation. Always follow local electrical codes and consult a licensed electrician for emergency lighting systems.

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

RIB Products

3G Electric supplies RIB emergency lighting bypass/shunt relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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