Balluff – BKT000W BKT 21M-002-N-S4 – Contrast sensors

MPN: BKT000W · Brand: Balluff

Price on request

Discontinued by Balluff — we can still source the original BKT000W (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	Contrast sensors
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)
Recommended replacement	BKT0001
Datasheet	Manufacturer datasheet ↗

Shipping & availability

Can I still buy the BKT000W now that it is discontinued?

Yes. Balluff has discontinued the BKT000W, 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. If you are planning an upgrade instead, Balluff names the BKT0001 as its successor — we can quote both.

When can BKT000W be shipped?

BKT000W 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 BKT000W 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 BKT000W 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 BKT000W, subject to availability and destination.

Balluff BKT000W (BKT 21M-002-N-S4) — Contrast sensor. Series: 21M; Dimension: 12 x 50 x 42.5 mm; Interface: NPN normally open/normally closed (NO/NC); Input function: Key disable on/off Teach Contrast (switching point); Principle of optical operation: Diffuse sensor, focused. Discontinued by Balluff; Balluff names BKT0001 as alternative. PartnerPLC supplies new, surplus and discontinued Balluff parts — request a quote for price, condition and lead time.

Specifications

Product

Lifecycle	Discontinued by Balluff
Type designation	BKT 21M-002-N-S4
Product group	Contrast sensors
Balluff alternatives	BKT0001

Key features

Series	21M
Dimension	12 x 50 x 42.5 mm
Interface	NPN normally open/normally closed (NO/NC)
Input function	Key disable on/off Teach Contrast (switching point)
Principle of operation	Contrast sensor
Principle of optical operation	Diffuse sensor, focused
Special optical feature	Coaxial Optics
Beam characteristic	Focused
Light type	White light
Light spot size	Ø 3.5 mm at 19 mm
Range	17...21 mm
Connection	Connector, M12x1-Male, 4-pin
Housing material	Zinc, Die casting, Powder coated Aluminium
Material sensing surface	Glass
Operating voltage Ub	10...30 VDC
Approval/Conformity	cULus CE EAC WEEE