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IFM · Inductive NAMUR sensor
NF501A is an IFM inductive namur sensor (IFB2004BN/US/1G/1D).
| Product characteristics | |
| Electrical design | NAMUR |
|---|---|
| Output function | normally closed |
| Sensing range | 4 [mm] |
| Housing | Threaded type |
| Dimensions | M12 x 1 / L = 45 [mm] |
| Application | |
| Application | For applications in hazardous areas |
| Electrical data | |
| Connection at circuit amplifier | 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 | 8.2; (1kΩ) [V] |
| Supply voltage DC | 7.5...30; (when used outside the hazardous area) [V] |
| Current consumption | < 1; (disabled; conductive: > 2,1) [mA] |
| Protection class | III |
| Outputs | |
| Electrical design | NAMUR |
| Output function | normally closed |
| Permanent current rating of switching output DC | 30; (when used outside the hazardous area) [mA] |
| Switching frequency DC | 700 [Hz] |
| Monitoring range | |
| Sensing range | 4 [mm] |
| Real sensing range Sr | 4 ± 10 % [mm] |
| Operating distance | 0...3.24 [mm] |
| Accuracy / deviations | |
| Correction factor | steel: 1 / stainless steel: 0.7 / brass: 0.5 / aluminum: 0.4 / copper: 0.3 |
| Hysteresis | 1...15 [% of Sr] |
| Switch-point drift | -10...10 [% of Sr] |
| Operating conditions | |
| Ambient temperature | -20...70 [°C] |
| Protection | IP 67 |
| Tests / approvals | |
| Approval | BVS 04 ATEX E 091 X; IECEx BVS 06.0003X |
| ATEX marking | II 1G Ex ia IIC T6 Ga |
| EMC | |
| Shock/vibration resistance | 30 g (11 ms) / 10-55 Hz (1 mm) |
| MTTF | 3119 [years] |
| Safety classification | |
| Max. internal capacitance | 210 [nF] |
| Max. internal inductance | 115 [µH] |
| Mechanical data | |
| Weight | 78.55 [g] |
| Housing | Threaded type |
| Mounting | flush mountable |
| Dimensions | M12 x 1 / L = 45 [mm] |
| Thread designation | M12 x 1 |
| Material | housing: brass special coating; sensing face: PBT; LED window: PA |
| Displays / operating elements | |
| Display | |
| Accessories | |
| Items supplied | |
| Remarks | |
| Pack quantity | 1 pcs. |
| Electrical connection - plug | |
| Connector | 1 x M12; coding: A; Contacts: 4 |
Technical data sourced from the official IFM datasheet for NF501A. Verify the nameplate of the installed unit before ordering. — IFM NF501A official page
Standard (US & Canada, tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders under $500.00; free on orders of $500.00 and above.
Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.
Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Shipping charges and available services are displayed at checkout. See the Shipping Policy for details.
Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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