Siemens 3RG40 Inductive Proximity Switch Modules – 3RG4014-4AB02

Technical Dossier

Product Details And Specifications

Siemens 3RG40 Series Technical Notes

The Siemens 3RG40 series of inductive proximity switches represents one of the most widely deployed sensor families in global heavy industry. Installed across petrochemical refineries, nuclear power generation facilities, chemical processing plants, and continuous-process manufacturing lines, the 3RG40 range provides non-contact position detection for metallic targets in environments where mechanical switches are unsuitable due to contamination, vibration, or duty-cycle demands. The series covers sensing distances from 1.5 mm to 40 mm, supply voltages spanning 10–30 V DC and 20–250 V AC/DC, and output configurations including PNP, NPN, NO, NC, and analog variants. Its IP67/IP68/IP69K-rated housings in M8, M12, M18, M30, and flat-pack form factors make it a standard reference in IEC 60947-5-2 compliant sensor procurement globally.

The Evolution of 3RG40 Architecture

The 3RG40 series was introduced by Siemens as a successor to earlier BERO proximity switch families, consolidating discrete sensor variants under a unified dimensional and electrical standard. Early production units used ferrite-core oscillator circuits with discrete transistor output stages, limiting switching frequencies to below 500 Hz. Subsequent generations integrated ASIC-based signal conditioning, extending switching frequencies to 5 kHz on standard DC variants and improving EMC immunity to IEC 61000-4 levels. The introduction of IO-Link-compatible variants (3RG46xx sub-series) enabled parameterization, diagnostics, and process data transmission over a single 3-wire cable, aligning the 3RG40 platform with Industry 4.0 architectures. Compatibility across generations is maintained at the mechanical and wiring level for M12 and M18 housings, allowing direct replacement of legacy units without conduit rework. Units manufactured prior to 2010 may carry the BERO designation on the nameplate; these are electrically interchangeable with current 3RG40 equivalents where the sensing distance and output type match.

3RG40 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked models within the Siemens 3RG40 inductive proximity switch series, organized by housing size and output configuration:

M8 Housing — DC 3-Wire

• 3RG4001-0AG01: M8 flush, 1.5 mm Sn, PNP-NO, 10–30 V DC, M8 connector
• 3RG4001-0AG33: M8 flush, 1.5 mm Sn, NPN-NO, 10–30 V DC, M8 connector
• 3RG4001-0AB00: M8 non-flush, 2 mm Sn, PNP-NO, 10–30 V DC, cable output

M12 Housing — DC 3-Wire

• 3RG4012-0AG01: M12 flush, 2 mm Sn, PNP-NO, 10–30 V DC, M12 connector
• 3RG4012-0AG33: M12 flush, 2 mm Sn, NPN-NO, 10–30 V DC, M12 connector
• 3RG4012-0AB00: M12 flush, 2 mm Sn, PNP-NO, 10–30 V DC, 2 m cable
• 3RG4013-0AG01: M12 non-flush, 4 mm Sn, PNP-NO, 10–30 V DC, M12 connector
• 3RG4013-0AB00: M12 non-flush, 4 mm Sn, PNP-NO, 10–30 V DC, 2 m cable

M18 Housing — DC 3-Wire

• 3RG4014-4AB02: M18 non-flush, 8 mm Sn, PNP-NO, 10–30 V DC, 2 m PVC cable — current page SKU
• 3RG4014-0AG01: M18 flush, 5 mm Sn, PNP-NO, 10–30 V DC, M12 connector
• 3RG4014-0AG33: M18 flush, 5 mm Sn, NPN-NO, 10–30 V DC, M12 connector
• 3RG4014-0AB00: M18 flush, 5 mm Sn, PNP-NO, 10–30 V DC, 2 m cable
• 3RG4015-0AG01: M18 non-flush, 8 mm Sn, PNP-NO, 10–30 V DC, M12 connector
• 3RG4015-0AB00: M18 non-flush, 8 mm Sn, PNP-NO, 10–30 V DC, 2 m cable

M30 Housing — DC 3-Wire & AC/DC 2-Wire

• 3RG4022-0AG01: M30 flush, 10 mm Sn, PNP-NO, 10–30 V DC, M12 connector
• 3RG4023-0AG01: M30 non-flush, 15 mm Sn, PNP-NO, 10–30 V DC, M12 connector
• 3RG4023-0AB00: M30 non-flush, 15 mm Sn, PNP-NO, 10–30 V DC, 2 m cable
• 3RG4024-0KG01: M30 non-flush, 20 mm Sn, 2-wire AC/DC, 20–250 V, M12 connector

Flat-Pack / Special Form Factor

• 3RG4031-6AB00: Flat-pack, 0.8 mm Sn, PNP-NO, 10–30 V DC, 2 m cable, stainless housing
• 3RG4033-0AB00: Rectangular, 5 mm Sn, PNP-NO, 10–30 V DC, 2 m cable