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RS PRO Power Relay 3PDT 240V AC Coil, 10A Switching Current, Silver Alloy Contacts 121-7838

Category Power Relay Brand RS PRO Condition New

Specifications

Country of Origin China
Brand RS PRO
Height 53mm
Length 36mm
Model 121-7838
Width 36mm
Contact Material Silver Alloy
Series RS PRO
Maximum Operating Temperature 55°C
Contact Configuration 3PDT
Minimum Operating Temperature -10°C
Switching Current 10A
Terminal type Plug-In
Contact Resistance 50mΩ
Standards/Approvals RoHS, CE
Coil Voltage 240V ac
Switching DC Voltage 30V dc
Switching AC Voltage 250V ac
Coil Power 300W

Key Features

  • This power relay features a plug-in terminal type for easy installation.
  • It operates reliably from -10°C to a maximum of 55°C ambient temperature.
  • The relay provides a switching power of 2.5 kVA for AC applications.
  • Gold plated contacts improve conductivity and reduce wear.
  • The product includes a lockable test button and inspection window for convenient servicing.
  • LED indicator enables visual status confirmation during operation.
  • Silver alloy contact material ensures low contact resistance of 50mΩ.
  • Compact dimensions of 36mm length, 36mm width, and 53mm height fit standard octal sockets.

Product Description

RS PRO 121-7838 power relay 3PDT with 240V AC coil and 10A switching current is designed for industrial and commercial control applications. This plug-in relay features three-pole double-throw (3PDT) contact configuration, offering flexible switching capabilities in compact form. It supports switching AC voltages up to 250V and DC voltages up to 30V, with a switching power rating of 2.5 kVA, making it suitable for various electrical control circuits.

The relay operates reliably within a temperature range from -10°C to 55°C. Contacts are gold plated and made from silver alloy, ensuring low resistance of 50mΩ and enhanced durability under frequent switching operations. A built-in LED indicator provides visual confirmation of coil energization while the lockable test button and inspection window facilitate maintenance and troubleshooting tasks.

With compact dimensions of 36mm length, 36mm width, and 53mm height, this relay fits standard octal sockets. Its coil power consumption is 300W, optimized for efficient operation. The RS PRO RUB series 3PCO octal relays are widely used in industrial machines, building automation, and heating, ventilation, and air-conditioning (HVAC) systems to enhance control function and reliability.

RS PRO power relays conform to RoHS and CE certifications, demonstrating compliance with environmental and safety standards. The relay bases required for DIN rail mounting are not included and must be ordered separately.

This power relay features a plug-in terminal type for easy installation. It operates reliably from -10°C to a maximum of 55°C ambient temperature. The relay provides a switching power of 2.5 kVA for AC applications. Gold plated contacts improve conductivity and reduce wear.

The product includes a lockable test button and inspection window for convenient servicing. LED indicator enables visual status confirmation during operation. Silver alloy contact material ensures low contact resistance of 50mΩ.

Compact dimensions of 36mm length, 36mm width, and 53mm height fit standard octal sockets. Designed for industrial, machine building, and HVAC applications. The relay base for DIN rail assembly is sold separately.

This relay is an ideal choice for industrial automation, manufacturing machines, HVAC systems, and electrical enclosures requiring reliable switching performance and diagnostic feedback through LED status indication. Browse the wide selection of Power Relays and electrical components on EnvMart for compatible accessories and products from RS PRO and other leading brands.

RS PRO Power Relay 3PDT 240V AC Coil, 10A Switching Current, Silver Alloy Contacts 121-7838
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Frequently Asked Questions

The relay has a switching current capacity of 10A.

This model operates with a coil voltage of 240V AC.

It features a 3PDT (three-pole double-throw) contact configuration.

The maximum operating temperature is 55°C.

The contacts are made from silver alloy, which ensures low contact resistance.

The relay has compact dimensions of 36mm in length, 36mm in width, and 53mm in height.

This relay provides a switching power rating of 2.5 kVA for AC applications.

Yes, it includes a lockable test button for convenient servicing.

The contact resistance is 50mΩ, ensuring efficient operation.

The relay conforms to RoHS and CE certifications, indicating compliance with environmental and safety standards.

The minimum operating temperature is -10°C.

It features a plug-in terminal type for easy installation.

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