ABB RBR121-24VDC Control Relay...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$89.47
ABB RBR121-24VDC Control Relay, 24VDC Coil

ABB RBR121-24VDC Control Relay, 24VDC Coil

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Model: 1SNA645571R0000

In Stock (leaves warehouse same day if ordered before 3pm ET)

$89.47
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ABB RBR121-24VDC Control Relay, 24VDC Coil

The ABB RBR121-24VDC is a control relay engineered for electrical control and automation applications where dependable switching performance is essential. Featuring a 24VDC coil rating, this relay is built for control circuits running on a 24VDC supply, a common voltage standard in industrial control panels and automation systems. Electrical contractors, panel builders, and system integrators specify the ABB RBR121-24VDC when they need consistent, code-conscious switching performance, whether for a new panel build or as a direct replacement in an existing control cabinet. Supplied 1 ea per package, it slots into standard 24VDC control architectures with minimal reconfiguration.

Key Features

  • Model Designation: RBR121-24VDC clearly identifies this unit within ABB's RBR relay series, simplifying specification, cross-referencing, and reordering for control panel builds.
  • 24VDC Coil Rating: Designed for control circuits operating on a 24VDC supply, a common voltage standard in industrial control panels, automation systems, and low-voltage control loops.
  • ABB Manufacturing Standards: Manufactured by ABB, a recognized global supplier of electrical control and automation components used across commercial, industrial, and OEM panel-building projects.
  • Convenient Packaging: Supplied 1 ea per package, simplifying stocking, inventory counts, and job-site distribution for electrical contractors, panel shops, and maintenance teams.
  • Documentation Available: A manufacturer spec sheet is available for this relay, allowing electricians and engineers to confirm fit, form, and function before specifying or installing the unit.
  • Straightforward Sourcing: The RBR121-24VDC model designation makes it easy to match this relay against existing panel drawings, bills of material, and replacement schedules.

Technical Specifications

  • Model: RBR121-24VDC
  • Coil Voltage: 24VDC
  • Packaging: 1 ea

Typical Applications

  • Industrial and Commercial Control Panels
  • Automation and Process Control Systems
  • Electrical Switching and Interface Circuits
  • Panelboard and Control Cabinet Wiring
  • Renovation and New Control System Builds
  • OEM Machine and Equipment Control Circuits

Why ABB?

ABB is a globally recognized manufacturer of electrical control and automation components trusted across commercial, industrial, and OEM projects. The RBR121-24VDC relay reflects ABB's focus on consistent manufacturing and dependable performance, helping electrical professionals specify components they can rely on for control and automation circuits. Choosing ABB for relay needs like the RBR121-24VDC supports long-term reliability in panel builds, retrofits, and control system installations, and ZenSupply makes it simple for contractors and engineers to source genuine ABB components alongside the rest of their electrical project materials.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Relay
Voltage Rating:
24VDC
Country of Origin:
Unknown
Department:
Electrical
Product Group:
Motor Control & Automation
Product Subgroup:
Contactors & Relays

ABB 1SNA645571R0000 – Frequently Asked Questions

1) What coil voltage does the ABB RBR121-24VDC relay use?
The RBR121-24VDC runs on a 24VDC coil, so it wires into control circuits fed from a 24VDC supply rail, the usual standard in industrial panels and automation loops. Drive the coil from anything else and it won't pick up correctly, so match your control transformer or DC power supply output before wiring it in.
2) Can I use the ABB RBR121-24VDC as a drop-in replacement in an existing control cabinet?
It is specified both for new panel builds and as a direct replacement in an existing control cabinet, provided the circuit it is replacing is also a 24VDC control circuit. ABB publishes a spec sheet for this relay so you can confirm fit, form and function against the unit you're pulling out before you commit.
3) What part number do I order for the ABB RBR121-24VDC relay?
Two numbers identify it. RBR121-24VDC is the ABB model designation you'll see on panel drawings and bills of material; 1SNA645571R0000 is the ABB catalog part number to order against. Both point to the same 24VDC-coil relay, and it ships one each per package.
4) What kinds of jobs is the ABB RBR121-24VDC relay used on?
Panel builders and integrators put it into industrial and commercial control panels, automation and process control systems, switching and interface circuits, panelboard and control cabinet wiring, and OEM machine and equipment control circuits. It suits both renovation work on an existing control system and a fresh panel build.
5) How many ABB RBR121-24VDC relays come in a package?
One each per package. For panel shops and maintenance teams that keeps inventory counts and job-site distribution straightforward, since you order the exact quantity of relays the drawing calls for rather than a fixed multi-pack.
How fast can I get the ABB 1SNA645571R0000 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ABB 1SNA645571R0000 come with a warranty?
Absolutely. The ABB 1SNA645571R0000 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ABB 1SNA645571R0000?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the ABB 1SNA645571R0000 from ZenSupply?
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