IFM NG501A - Inductive NAMUR Sensor, M18 NAMUR, 8 mm Range

SKUNG501ABrandIFM

AED 174.37

~~AED 193.72~~ AED 174.37

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IFM NG501A Inductive NAMUR Sensor — M18 NAMUR intrinsically-safe inductive sensor, 8 mm range, ATEX Zone-0/20 (Ex ia). NAMUR normally closed, 8 mm sensing range, M18 x 1 (L 46 mm), ATEX II 1G/1D Ex ia, 8.2 V NAMUR, IP66/67, flush mountable.

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MPN / SKU: NG501A

Also known as: IFM NG501A inductive sensor / proximity sensor / proximity switch.

NG501A Applications

The IFM NG501A is an inductive NAMUR sensor used for position and presence detection in hazardous (gas and dust Ex) areas. It is suited for valve position feedback, end-position and rotation monitoring on equipment in ATEX Zone-0/20 environments. Designed for connection to certified intrinsically safe circuits via a NAMUR switching amplifier, it carries ATEX II 1G / 1D Ex ia marking, offers an 8 mm sensing range in a robust metal housing, and provides clearly visible LED switching indication with a permanently legible laser type label.

NG501A Specifications

Brand	IFM	Product Type	Inductive NAMUR sensor
IFM Type Code	IGB2008BN/US/1G/1D	Electrical Design	NAMUR
Output Function	Normally closed	Sensing Range	8 mm (Sr 8 mm ±10%)
ATEX Marking	II 1G Ex ia IIC T6 Ga; II 1D Ex ia IIIC (BVS 04 ATEX E 091 X; IECEx)	Connection	To intrinsically safe circuit via NAMUR amplifier (8.2 V, 1 kΩ)
Housing	M18 x 1, L = 46 mm, flush mountable	Switching Frequency	400 Hz
Protection Rating	IP 66 / IP 67	Ambient Temperature	-20...70 °C
Housing Material	Brass, special coating	Electrical Connection	M12 connector, A-coded, 4 contacts
Weight	90 g

NG501A Datasheet & Manual

Download Datasheet & ManualIFM NG501A · PDF · Official IFM document

NG501A – Frequently Asked Questions (FAQ)

What is the sensing range of the IFM NG501A?

The NG501A has a sensing range of 8 mm, with a real sensing range Sr of 8 mm +/- 10 % and an operating distance of 0 to 6.48 mm.

What output type does the NG501A use?

It is a NAMUR inductive sensor with normally closed function, using a nominal voltage of 8.2 V DC at 1 kOhm.

Is the NG501A flush mountable?

Yes, it is flush mountable in an M18 x 1 threaded housing.

What ATEX rating does the NG501A carry?

It is ATEX marked II 1G Ex ia IIC T6 Ga and II 1D Ex ia IIIC T200 90 C Da, per approvals BVS 04 ATEX E 091 X and IECEx BVS 06.0003X.

What supply voltage and currents apply to the NG501A?

It uses a supply voltage of 7.5 to 30 V DC (outside the hazardous area), drawing less than 1 mA when disabled and more than 2.1 mA when conductive, with a permanent current rating of 30 mA DC.

What is the switching frequency of the NG501A?

The switching frequency is 400 Hz.

What is the housing material, IP rating and temperature range of the NG501A?

The housing is brass with special coating and a PBT sensing face, rated IP 66 and IP 67, with an operating temperature range of -20 to 70 C.

How is the NG501A connected electrically?

It connects via a 1 x M12 A-coded 4-pin connector.