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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Same-day dispatch across UAE
Order before 2 PM (Sun–Thu). Next-day delivery to Dubai, Sharjah, Abu Dhabi. 2–4 days to other emirates.
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Sealed, unused items can be returned within 7 days for full refund or replacement.
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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)
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.
Being a UAE company, our UAE shipments are subject to tariffs. Under DDP (Delivered Duty Paid), all applicable tariffs and fees are calculated and paid upfront at checkout.
Same-day dispatch across UAE
Order before 2 PM (Sun–Thu). Next-day delivery to Dubai, Sharjah, Abu Dhabi. 2–4 days to other emirates.
7-day return window
Sealed, unused items can be returned within 7 days for full refund or replacement.
Compatibility-checked
Our specialists review every bulk quote to ensure the part fits your application before you commit.
