GX-3S Inductive Proximity Sensor - Equivalent & Substitute Parts

Part Overview

The GX-3S is an inductive proximity sensor manufactured by Panasonic Industrial Automation Sales, designed for non-contact detection applications with a 0.6mm sensing distance. This sensor operates as a 3-wire NPN-NO output device with shielded cylindrical construction and stainless steel housing, suitable for industrial automation environments requiring IP67 ingress protection.

The GX-3S is classified as obsolete. Locating equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for replacement or new installations where this sensor specification is required.

Substiute Parts

GX-3S

Panasonic Industrial Automation SalesIn Stock: 1114GX-3S Datasheet

Current PartRFQ

GX-304S-A-N

Panasonic Industrial Automation SalesIn Stock: 775GX-304S-A-N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the GX-3S is determined by the following critical parameters that must remain functionally equivalent:

• Sensor Type: Must be Inductive
• Output Configuration: Must be NPN-NO, 3-Wire
• Shielding: Must be Shielded
• Body Material: Must be Stainless Steel
• Termination: Must be Cable Leads
• Package Form: Must be Cylinder
• Ingress Protection: Must be IP67
• Indicator: Must include LED

The GX-304S-A-N meets all mandatory substitution criteria. While the sensing distance (0.84mm vs. 0.6mm) and response frequency (4kHz vs. 1kHz) differ, these parameters fall within the allowable tolerance range for inductive proximity sensor substitution in the GX series. The supply voltage range of the substitute (10V ~ 30V) encompasses the original specification (12V ~ 24V), providing broader operational compatibility.

Parameter Comparison

Engineering Selection Recommendations

The GX-304S-A-N is the designated manufacturer substitute for the obsolete GX-3S. Selection of this substitute is supported by the following factors:

• Product Status: The GX-304S-A-N maintains active production status, ensuring long-term availability and supply chain continuity.
• Compliance: Both parts maintain RoHS compliance. The substitute achieves ROHS3 certification, meeting current regulatory requirements.
• Functional Equivalence: All critical electrical and mechanical parameters align with the original specification, enabling direct substitution in existing applications.
• Supply Voltage Compatibility: The expanded supply voltage range (10V ~ 30V) of the substitute provides operational flexibility within the original system voltage window (12V ~ 24V).

Frequently Asked Questions (FAQ)

Q: Can the GX-304S-A-N directly replace the GX-3S in existing installations?

A: Yes. Both sensors share identical output configuration (NPN-NO, 3-Wire), housing material (stainless steel), termination style (cable leads), and environmental rating (IP67). The cylindrical package form and LED indicator are consistent across both models.

Q: How do the sensing distance specifications differ between these models?

A: The GX-3S operates at 0.6mm sensing distance, while the GX-304S-A-N operates at 0.84mm. This difference reflects design improvements within the GX series. Application compatibility depends on the specific detection gap required in your installation.

Q: What is the significance of the different response frequencies?

A: The GX-3S operates at 1kHz response frequency, while the GX-304S-A-N operates at 4kHz. The higher response frequency of the substitute provides faster detection capability, which is compatible with or superior to the original specification for most industrial automation applications.

Q: Are there supply voltage considerations when substituting?

A: The GX-3S requires 12V ~ 24V supply voltage. The GX-304S-A-N accepts 10V ~ 30V. If your system operates within the original 12V ~ 24V window, the substitute will function without modification. The expanded range of the substitute does not create incompatibility.

Q: What packaging differences exist between these models?

A: The GX-3S is supplied with standard packaging. The GX-304S-A-N is supplied in a Box package. This difference affects only logistics and storage; the sensor itself maintains identical cylindrical form factor and mounting compatibility.

Q: Is the GX-304S-A-N the only available substitute?

A: The GX-304S-A-N is the manufacturer-designated substitute for the GX-3S within the Panasonic Industrial Automation Sales product line.