Home / Honeywell / Honeywell Building Management Systems (BMS) / XF821AU Pluggable Panel Bus I/O Modules

Available on request

Honeywell – XF821AU Pluggable Panel Bus I/O Modules

MPN: XF821AU · Brand: Honeywell

Price on request

Discontinued by Honeywell — we can still source the original XF821AU (new, used or refurbished, subject to availability). Request a quote below.

Request a Quote

12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Honeywell Building Management Systems (BMS)
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the XF821AU now that it is discontinued?

Yes. Honeywell has discontinued the XF821AU, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.

When can XF821AU be shipped?

XF821AU is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up XF821AU in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for XF821AU and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for XF821AU, subject to availability and destination.

Pluggable panel bus I/O modules communicate via the LonWorks® bus and panel bus respectively. They consist of a terminal socket and a removable electronic module, allowing the socket to be mounted and wired before electronic modules are installed. All such electronic modules can be swapped out without disrupting the power and bus connections. Simply unplug the “old” and insert the “new” module.

I/O modules with communication via panel bus (light gray housings) and LonWorks bus I/O modules (dark gray housings) with communication via LonWorks have easy integration and use with third-party controllers. The firmware of pluggable I/O modules is automatically updated by the controller, and the controller automatically configures them as needed by the application. The use of plug-and-play Excel 800 panel bus I/O modules yields huge installation and commissioning cost-savings due to new, patented technologies, while the Excel 800 LonWorks bus I/O modules employ the LonWorks communication standard. Features & Benefits:

Plug-and-play functionality for easy maintenance

Separate installation of terminal sockets and electronic modules lowers risk of damage and theft in the construction phase

Fast wiring with state-of-the-art push-in terminals (screw-type terminals also available) and bridge connectors

Wide range of sensors supported

Binary input LEDs of the pluggable I/O modules can be configured for status display (off/yellow) or alarm display (green/red) per channel

Configurable safety position for outputs in case of loss of communication with the controller

Maximum wiring flexibility due to optional accessories like auxiliary terminals and cross connectors

Can be mounted in small installation housings

Flexible mix of pluggable I/O modules covering all your application requirementsCertifications:

CE Approved

Conforms to EN 60730-1 and EN 60730-2-9

Investigated According to United States Standard UL916 (USL-Listed) as well as Canadian National Standard(s) C22.2 (CNL-Listed)

UUKL

Honeywell Honeywell, Honeywell BMS NA XF821AU — Pluggable panel bus I/O modules communicate via the LonWorks® bus and panel bus respectively. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.