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IFM KN5121

MPN: KN5121
Category: All capacitive sensors

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12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
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What is the IFM KN5121?

For use in plastics machines and crystallizers

Easy adjustment to the empty and full state via pushbutton

Level detection of granulates up to 250 °C

LED display to check operation, switching status and function

Resistant to electrostatic discharge

Specifications

Product characteristics

Electrical design	PNP
Output function	normally open / normally closed; (selectable)
Sensing range[mm] [mm]	sensing range programmable
Housing	threaded type
Dimensions[mm] [mm]	M30 x 1.5 / L = 116

Application

Media	dry bulk material
Recommended media	plastic granulates

Electrical data

Operating voltage[V] [V]	10...30 DC
Current consumption[mA] [mA]	34; (typical: 34 (24 V); maximum: 39 (30 V))
Protection class	III
Reverse polarity protection	yes
Measuring principle	capacitive

Outputs

Electrical design	PNP
Output function	normally open / normally closed; (selectable)
Max. voltage drop switching output DC[V] [V]	2.5
Max. voltage drop of function check output[V] [V]	3.5
Max. current load for function check output[mA] [mA]	10
Permanent current rating of switching output DC[mA] [mA]	200
Switching frequency DC[Hz] [Hz]	10
Short-circuit protection	yes
Type of short-circuit protection	pulsed
Overload protection	yes

Detection zone

Sensing range[mm] [mm]	sensing range programmable
Sensing range adjustable	yes

Operating conditions

Ambient temperature[°C] [°C]	-15...230
Note on ambient temperature	sensor: -15...230 °C; briefly: ...250 °C (4 h); HF connection cable: -25...200 °C; electronics: -25...70 °C
Protection	IP 67

Tests / approvals

EMC	EN 60947-5-2
MTTF[years] [years]	347

Mechanical data

Weight[g] [g]	443.45
Housing	threaded type
Mounting	non-flush mountable
Dimensions[mm] [mm]	M30 x 1.5 / L = 116
Thread designation	M30 x 1.5
Materials	housing sensor: PPS; brass white bronze coated; housing electronic: PBT; PP; brass white bronze coated

Displays / operating elements

Display	switching status; 2 x LED, yellow; operation; 1 x LED, green; error; 1 x LED, red
switching status	2 x LED, yellow
operation	1 x LED, green
error	1 x LED, red

Accessories

Items supplied

lock nuts: 2

Remarks

Pack quantity

1 pcs.

Electrical connection - HF connection cable

Cable

2 m, PFA

Electrical connection - plug

Connector

1 x M12; coding: A

KN5121: frequently asked questions

When can KN5121 be shipped?

KN5121 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 KN5121 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 KN5121 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 KN5121, subject to availability and destination.