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Available on request

Honeywell – B312NL Series 300 Conventional Relay Base

MPN: B312NL · Brand: Honeywell

Price on request

Discontinued by Honeywell — we can still source the original B312NL (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 Sensors & Detectors
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the B312NL now that it is discontinued?

Yes. Honeywell has discontinued the B312NL, 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 B312NL be shipped?

B312NL 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 B312NL 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 B312NL 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 B312NL, subject to availability and destination.

The B312NL/B312RL are designed to provide interfacing between a series 300 detector and 12V security control panels that do not provide a reset facility as the relay base is self-resetting. The relay base will automatically reset the series 300 detector when a fire alarm condition no longer exists. While the detector is in alarm the LED will be on, although it will flash when an alarm check is performed. This base is also ideal for control of any electrical apparatus such as air conditioning systems or apparatus utilising a 12V power supply instead of a control panel. Features & Benefits:

Accepts Series 300 range of detectors

Compatible with fire & security systems

Tamper resistant feature

Detector removal indication

Remote LED option

Extended warranty

Honeywell B312NL — The B312NL/B312RL are designed to provide interfacing between a series 300 detector and 12V security control panels that do not provide a reset facility as the relay base is self-resetting. 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.