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Honeywell – B401 S300 Series Detector Base
Discontinued by Honeywell — we can still source the original B401 (new, used or refurbished, subject to availability). Request a quote below.
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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 B401 now that it is discontinued?
Yes. Honeywell has discontinued the B401, 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 B401 be shipped?
B401 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 B401 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 B401 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 B401, subject to availability and destination.
B401 plug-in detector bases are used with System Sensor® conventional S300 smoke and heat detectors. These bases make detectors more versatile than equivalent direct-wired models. B401 bases are intended for use in 2-wire systems, with screw terminals provided for power and remote annunciator connections.
Honeywell NOTIFIER, System Sensor B401 — B401 plug-in detector bases are used with System Sensor® conventional S300 smoke and heat detectors. These bases make detectors more versatile than equivalent direct-wired models. 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.
Specifications
Product
| Lifecycle | Discontinued by Honeywell |
| Brand line | NOTIFIER, System Sensor |
Others
| Brand | NOTIFIER, System Sensor |
Ordering codes
| Part numbers on this product page | B401, B401 SD, B401-NTF, B401-SS, B401., B401.., B401DG, B401DGF, B401DGR, B401DGR1000, B401DGSD, B401L, B401LI, B401R, B401RM1000, B401RM470, B401RN, B401RSD |
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