Pepperl+Fuchs NCB8-18GM40-N0-V1 Inductive Sensor NAMUR NC Output 8mm Non-Flush M12 Connector Stainless Steel SIL2 In Stock
Price:
negotiable
MOQ:
1
Delivery Time:
In stock
Brand:
Pepperl+Fuchs
Product Description
Pepperl+Fuchs NCB8-18GM40-N0-V1 Inductive Sensor
This flush-mountable inductive proximity sensor features an 8 mm rated operating distance with NAMUR output and normally closed (NC) switching function. Certified for SIL 2 according to IEC 61508, it is designed for demanding industrial automation and safety applications.
Important: NAMUR sensors must be operated with approved switch amplifiers (e.g., Pepperl+Fuchs K-System isolated barriers). This sensor cannot be directly connected to standard PLC inputs.
Key Specifications
| Parameter | Value |
|---|---|
| Model | NCB8-18GM40-N0-V1 |
| Brand | Pepperl+Fuchs |
| Product Type | Inductive proximity sensor / NAMUR sensor |
| Switching function | Normally closed (NC) |
| Output type | NAMUR (2-wire) |
| Rated operating distance (sn) | 8 mm |
| Installation | Flush (shielded) |
| Assured operating distance (sa) | 0 ... 6.48 mm |
| Actual operating distance (sr) | 7.2 ... 8.8 mm typ. 8 mm |
| Nominal voltage | 8.2 V (Ri approx. 1 kΩ) |
| Switching frequency | 0 ... 1500 Hz |
| Hysteresis | 1 ... 15 % typ. 5 % |
| Reverse polarity protection | Yes |
| Short-circuit protection | Yes |
| Current consumption (no target) | ≥ 2.2 mA |
| Current consumption (target present) | ≤ 1 mA |
| Switching state indicator | Multihole-LED, yellow |
Functional Safety & Reliability
| Parameter | Value |
|---|---|
| Safety Integrity Level (SIL) | SIL 2 acc. to IEC 61508 |
| MTTFd | 2660 years |
| Mission Time (TM) | 20 years |
| Diagnostic Coverage (DC) | 0 % |
This sensor is certified for use in safety-related applications up to SIL 2 according to IEC 61508. For higher safety integrity (up to SIL 3), two sensors can be used in redundant configuration.
Mechanical & Environmental Specifications
| Parameter | Value |
|---|---|
| Housing material | Stainless steel 1.4305 / AISI 303 |
| Sensing face material | PBT |
| Degree of protection | IP66 / IP67 |
| Ambient temperature | -25 ... 100 °C (-13 ... 212 °F) |
| Storage temperature | -40 ... 100 °C (-40 ... 212 °F) |
| Connection type | Connector plug, M12 x 1, 4-pin |
| Diameter | 18 mm |
| Length | 40 mm |
| Scope of delivery | 2 self-locking nuts |
Material Reduction Factors
| Material | Reduction Factor |
|---|---|
| Aluminum (rAl) | 0.39 |
| Copper (rCu) | 0.36 |
| Stainless steel (r304) | 0.71 |
Output Characteristics
| Condition | Output Signal |
|---|---|
| Target not detected (no metal) | Current consumption ≥ 2.2 mA |
| Target detected (metal present) | Current consumption ≤ 1 mA |
The output follows NAMUR EN 60947-5-6:2000 and IEC 60947-5-6:1999 standards.
Hazardous Area Approvals
| Certification | Equipment Protection Level | Certificate No. |
|---|---|---|
| ATEX | Ga, Gb, Da | PTB 00 ATEX 2048 X |
| IECEx | Ga, Gb, Da, Mb | IECEx PTB 11.0037X |
| UL | Hazardous Location | E501628 |
| UL | Ordinary Location | E87056 |
| CCC | Hazardous Location | 2020322315002255 |
| NEPSI | - | GYJ16.1393X |
| ANZEx | - | 18.3018X |
| Marine | DNVGL | TAA00001A5 |
Suitable for:
- Gas hazardous areas: Zone 0, 1, 2 (Equipment protection level Ga, Gb)
- Dust hazardous areas: Zone 20, 21, 22 (Equipment protection level Da)
- Mining: Equipment protection level Mb
Key Features
High-Performance Sensing
8 mm flush sensing with shielded design for space-constrained applications, 1500 Hz switching frequency for fast-moving targets, and normally closed (NC) failsafe operation.
8 mm flush sensing with shielded design for space-constrained applications, 1500 Hz switching frequency for fast-moving targets, and normally closed (NC) failsafe operation.
NAMUR Output (2-Wire)
NAMUR output according to EN 60947-5-6 / IEC 60947-5-6 with 2-wire connection for intrinsic safety applications. Must be operated with approved NAMUR switch amplifiers.
NAMUR output according to EN 60947-5-6 / IEC 60947-5-6 with 2-wire connection for intrinsic safety applications. Must be operated with approved NAMUR switch amplifiers.
SIL 2 Functional Safety
SIL 2 certified according to IEC 61508 with MTTFd of 2,660 years and 20-year mission time for long-term safety system deployment.
SIL 2 certified according to IEC 61508 with MTTFd of 2,660 years and 20-year mission time for long-term safety system deployment.
Rugged Construction
Stainless steel housing (AISI 303) with PBT sensing face, IP66/IP67 protection rating, and wide temperature range (-25°C to +100°C) for extreme conditions.
Stainless steel housing (AISI 303) with PBT sensing face, IP66/IP67 protection rating, and wide temperature range (-25°C to +100°C) for extreme conditions.
M12 Connector
4-pin M12 connector for quick installation and replacement, compatible with standard M12 cordsets.
4-pin M12 connector for quick installation and replacement, compatible with standard M12 cordsets.
Protection Features
Reverse polarity protection, short-circuit protection, and suitability for 2:1 technology without requiring reverse polarity protection diode.
Reverse polarity protection, short-circuit protection, and suitability for 2:1 technology without requiring reverse polarity protection diode.
Applications
| Industry | Application Examples |
|---|---|
| Oil & Gas | Position monitoring, valve feedback in hazardous areas, offshore platforms |
| Chemical / Pharmaceutical | Tank level monitoring, equipment position detection in explosive atmospheres |
| Process Automation | Safety interlock systems, limit monitoring with SIL 2 requirements |
| Marine / Offshore | DNVGL certified for maritime applications with corrosion-resistant sensing |
| Machine Building | End-stop detection, positioning control with M12 connector for quick replacement |
| Safety Instrumented Systems (SIS) | SIL2-rated limit switches for emergency shutdown systems |
Typical Use Cases
- Position monitoring of valves, gates, and actuators in hazardous areas (Zone 0/1/2 gas, Zone 20/21/22 dust)
- End-stop detection for linear actuators and conveyors in harsh environments
- Speed monitoring of rotating equipment (up to 1500 Hz switching frequency)
- Safety interlock monitoring for machinery access doors with SIL 2 compliance
- Marine applications with DNVGL certification for shipboard equipment
Compatible Switch Amplifiers & Accessories (Required)
NAMUR sensors must be operated with approved switch amplifiers. Recommended Pepperl+Fuchs accessories include:
| Accessory | Model | Description |
|---|---|---|
| Terminal amplifier | KCD2-E2L | Single-channel terminal amplifier with line breakage detection, input for NAMUR sensors, DC 24 V supply voltage |
| Terminal amplifier | 1-channel isolated barrier, 24 V DC supply, relay output, line fault detection, SIL 2, 12.5 mm width | |
| Cable connector | V1-G-N-2M-PUR | Female cordset, M12 straight, 2-pin, PUR cable blue, NAMUR, 2 m |
| Cable connector | V1-W-N-2M-PUR | Female cordset, M12 angled, 2-pin, PUR cable blue, NAMUR, 2 m |
| Mounting flange | BF 18 | Mounting flange for 18 mm sensors |
| Mounting bracket | CPZ18B03 | Mounting bracket with swivel nut |
Contact us for amplifier recommendations based on your application requirements.
Standards & Compliance
| Standard | Description |
|---|---|
| EN 60947-5-6:2000 | NAMUR sensor standard |
| IEC 60947-5-6:1999 | NAMUR sensor standard |
| EN IEC 60947-5-2 | Proximity switch standard |
| NE 21:2007 | Electromagnetic compatibility |
| IEC 61508 | Functional safety – SIL 2 certified |
Ordering Information
| Item | Details |
|---|---|
| Manufacturer | Pepperl+Fuchs SE |
| Part Number | NCB8-18GM40-N0-V1 |
| Alternative Part Number | 103595 |
| Product Status | Active / In Stock |
| Country of Origin | Indonesia |
| Packaging | Factory sealed box |
| HS Code | 8543.70.9860 |
| ECLASS 13.0 | 27274001 |
| ETIM 9.0 | EC002714 |
| UNSPSC 12.1 | 39121550 |
Pricing Reference
| Quantity | Unit Price (USD) |
|---|---|
| 1 | $122.65 |
| 10 | $111.16 |
| 25 | $107.32 |
Prices are for reference only; contact us for current volume pricing.
Key Benefits
Intrinsic Safety
NAMUR output with ATEX/IECEx approval for hazardous area use (Zone 0/1/2 gas, Zone 20/21/22 dust)
Functional Safety
SIL 2 certified for safety-critical applications up to SIL 2
Exceptional Durability
Stainless steel housing + IP66/IP67 rating for harsh environments
Wide Temperature Range
-25°C to +100°C for extreme operating conditions
High-Speed Detection
1500 Hz switching frequency for fast-moving targets
Long Service Life
MTTFd of 2,660 years with 20-year mission time
Global Approvals
ATEX, IECEx, UL, CCC, NEPSI, ANZEx, KCC – one sensor for worldwide use
Marine Approved
DNVGL certified for maritime applications
Quick Installation
M12 connector for fast replacement – no cable stripping required
Proven Reliability
Pepperl+Fuchs – trusted leader in industrial sensors
Flush Installation
8 mm sensing distance with flush mounting capability
Normally Closed Operation
Failsafe output configuration
Technical Support
Contact us for:
- Technical specifications and complete datasheets
- Volume pricing and availability
- Compatible switch amplifier recommendations (KCD2-E2L, etc.)
- M12 cordsets (V1-G-N-2M-PUR, V1-W-N-2M-PUR)
- Installation and wiring guidance
- Functional safety documentation
- Hazardous area application engineering support
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Get in Touch
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Company
Shenzhen Hengyo Power Technology Co., Limited
Location
Room 2407, B Block No.145 Chengshi Zhuchang Bld, Bagua 2nd Rd, Futian Dist. Shenzhen City, China 518029
Contact Person
Vivian Chan