IFM N7S21A

Inductive sensor

MPN: N7S21A
Category: All inductive sensors

Price and lead time confirmed within 1 business day

Request a Quote

1We check stock, condition and lead time
2You get a written quote by email
3Approve it and we ship — in-stock parts within 1 business day

12-month warranty (new) · 3-month (used/refurbished)
30-day returns, no restocking fee on unused parts
100% positive eBay feedback
Ships via

Have spare IFM parts? We buy surplus →

What is the IFM N7S21A?

For applications in hazardous areas

Precise detection of pointer positions

For connection to intrinsically safe circuits

Very high switching frequency

Wide operating temperature range

Specifications

Product characteristics

Electrical design	NAMUR
Output function	normally closed
Housing	rectangular
Dimensions[mm] [mm]	19 x 10 x 15

Electrical data

Connection to switching amplifiers	yes
Switching amplifiers	connection to certified intrinsically safe circuits with the max. values: U = 15 V / I = 50 mA / P = 120 mW
Nominal voltage DC[V] [V]	8.2; (1kΩ)
Supply voltage DC[V] [V]	5...25; (when used outside the hazardous area)
Current consumption[mA] [mA]	< 1.2; (disabled; conductive: > 2,1)
Protection class	III

Outputs

Electrical design	NAMUR
Output function	normally closed
Switching frequency DC[Hz] [Hz]	3000

Detection zone

Insertion depth (from the side)[mm] [mm]

5...7

Accuracy / deviations

Hysteresis[%] [%]

0...0.05

Operating conditions

Ambient temperature[°C] [°C]	-40...100
Protection	IP 67

Tests / approvals

Approval	BVS 08 ATEX E026; IECEx BVS 09.0016
ATEX marking	II 1G Ex ia IIC T4 Ga
EMC	EN 60947-5-2
MTTF[years] [years]	2942

Safety classification

Max. internal capacitance[nF] [nF]	150
Max. internal inductance[µH] [µH]	150

Mechanical data

Weight[g] [g]	34
Housing	rectangular
Dimensions[mm] [mm]	19 x 10 x 15
Slot width[mm] [mm]	3.5
Materials	PBT

Accessories

Items supplied

counter-sunk screw: 1 x (M1,6 x 10 mm), stainless steel; Hexagon nut: 1 x M1,6

Remarks

Pack quantity

1 pcs.

Electrical connection - plug

Cable	0.065 m; 2 x 0.14 mm², PTFE
Connector	1 x DUBOX

N7S21A: frequently asked questions

When can N7S21A be shipped?

N7S21A 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 N7S21A 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 N7S21A 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 N7S21A, subject to availability and destination.