IFM NM501A

Inductive sensor

MPN: NM501A
Category: All inductive sensors

Price and lead time confirmed within 1 business day

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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
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What is the IFM NM501A?

For applications in hazardous areas

For connection to intrinsically safe circuits

Long sensing range for use in conveying

Robust housing for use in harsh industrial environments

Five positions of the sensing face selectable

Specifications

Product characteristics

Electrical design	NAMUR
Output function	normally closed
Sensing range[mm] [mm]	35
Housing	rectangular
Dimensions[mm] [mm]	40 x 40 x 66

Application

Special feature

Gold-plated contacts

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]	7.5...30; (when used outside the hazardous area)
Current consumption[mA] [mA]	< 1; (disabled; conductive: > 2,1)
Protection class	III

Outputs

Electrical design	NAMUR
Output function	normally closed
Permanent current rating of switching output DC[mA] [mA]	30; (when used outside the hazardous area)
Switching frequency DC[Hz] [Hz]	100

Detection zone

Sensing range[mm] [mm]	35
Real sensing range Sr[mm] [mm]	35 ± 10 %

Accuracy / deviations

Correction factor	steel: 1 / stainless steel: 0.7 / brass: 0.5 / aluminium: 0.4 / copper: 0.3
Hysteresis[% of Sr] [% of Sr]	1...15
Switch point drift[% of Sr] [% of Sr]	-10...10

Operating conditions

Ambient temperature[°C] [°C]	-20...70
Protection	IP 67

Tests / approvals

Approval	BVS 04 ATEX E 091 X; IECEx BVS 06.0003X
ATEX marking	II 1D Ex ia IIIC T200 90°C Da
EMC	EN 60947-5-6
Shock/vibration resistance	30 g (11 ms) / 10-55 Hz (1 mm)
MTTF[years] [years]	2935

Safety classification

Max. internal capacitance[nF] [nF]	220
Max. internal inductance[µH] [µH]	710

Mechanical data

Weight[g] [g]	189
Housing	rectangular
Mounting	non-flush mountable
Dimensions[mm] [mm]	40 x 40 x 66
Materials	housing: PPE; sensing face: PPE orange; bevelled housing part: PPS; mounting adapter: PPS black; screw: steel galvanised

Displays / operating elements

Display	switching status; 1 x LED, yellow
switching status	1 x LED, yellow

Accessories

Items supplied

Mounting bracket: 1; Allen key: 1

Remarks

Remarks	5 positions of the active zone possible
Pack quantity	1 pcs.

Electrical connection - plug

Connector

1 x M12; coding: A; Locking: brass, white bronze coated; Contacts: gold-plated

NM501A: frequently asked questions

When can NM501A be shipped?

NM501A 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 NM501A 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 NM501A 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 NM501A, subject to availability and destination.