Economy M4/M5/M6 Inductive Proximity Switches (Export-Grade)

Name: Economy M4/M5/M6 Inductive Proximity Switches (Export-Grade)
Brand: DAIDISIKE
SKU: economy-m4-m5-m6-inductive-proximity-switches
Availability: InStock

Compact export-grade M4/M5/M6 inductive proximity switches in NPN/PNP, NO/NC for tight-space detection.

Economy M4/M5/M6 Inductive Proximity Switches (Export-Grade) - dimensional drawing

🔍 Click to enlarge · 1/10

Technical Specifications

Detection Method	Inductive
Body Length (M4 standard / JJ4A3-1)	30mm
Body Length (M4 economy / E2E4)	25mm
Body Length (M5 economy / E2E5)	25mm
Body Length (M5 standard / JJ5A3-1)	30mm
Body Length (M6 / JJ6A3-1)	35mm
Thread (M4)	Non-threaded
Thread (M5)	M5 x 0.5
Thread (M6)	M6 x 0.75
Output Type	NO / NC
Output Transistor Type	NPN (suffix ZB) / PNP (suffix ZA)
Sensing Distance (M4 30mm / M5 30mm / M6 35mm standard versions)	1.0mm ± 10%
Mounting (M5 30mm / M6 35mm)	Flush (shielded)
Body Material	Copper (brass)

Overview

This is a small-diameter (M4/M5/M6) inductive proximity switch family built as a cost-conscious "economy" tier alongside DAIDISIKE's standard threaded proximity switch range. It includes a non-threaded M4 body (30mm and a shorter 25mm "E2E4" version) and threaded M5/M6 bodies (E2E5 25mm version and standard 30/35mm versions), each available in NPN or PNP output with normally-open (NO) or normally-closed (NC) contact configuration.

It is intended for OEM machine builders, panel integrators, and factory maintenance buyers who need a compact metal proximity sensor for basic presence/position detection where mounting space is limited and unit cost matters. The M4 (30mm), M5 (30mm), and M6 (35mm) standard versions all carry a confirmed sensing distance of 1.0mm ± 10%, and the M5/M6 versions are rated for flush (shielded) mounting.

Key Facts — Economy at a glance

The M4 non-threaded proximity switch (JJ4A3-1 series) has a 30mm body length and 4mm diameter, with a confirmed sensing distance of 1.0mm ± 10%.
The M5 threaded proximity switch (JJ5A3-1 series, M5 x 0.5 thread) has a 30mm body length, is rated for flush (shielded) mounting, and has a confirmed sensing distance of 1.0mm ± 10%.
The M6 threaded proximity switch (JJ6A3-1 series, M6 x 0.75 thread) has a 35mm body length, is rated for flush (shielded) mounting, and has a confirmed sensing distance of 1.0mm ± 10%.
Each size in this series is available in NPN output (model suffix ZB) or PNP output (model suffix ZA), with normally-open (suffix X) or normally-closed (suffix Y) contact configuration.
The E2E4 (M4, 25mm body) and E2E5 (M5, 25mm body) variants are shorter, lower-cost versions of the standard 30mm M4/M5 proximity switches in this line.
All sizes in this series use a copper (brass) sensing body.

Features & Benefits

Ultra-compact body for tight installation spaces

At just M4 (4mm diameter) to M6 in body size, these sensors fit into brackets, jigs, and fixtures where standard M8/M12 proximity switches cannot be mounted.

Two body-length options per size for space or cost optimization

M4 is offered in a 30mm body and a shorter 25mm "E2E4" body; M5 is offered in a 30mm body and a shorter 25mm "E2E5" body, letting buyers pick the shorter/cheaper option when the extra length isn't needed.

Flush (shielded) mounting confirmed on M5/M6

The M5 (30mm) and M6 (35mm) versions are marked flush/shielded on the factory selection chart, meaning the sensing face can be mounted flush with surrounding metal without triggering false detection.

Both NPN and PNP output, NO and NC contact type in one series

Each size is offered as ZBX/ZBY (NPN) and ZAX/ZAY (PNP), with X = normally open (NO) and Y = normally closed (NC), so buyers can match existing PLC/relay wiring without redesigning the control circuit.

Consistent 1.0mm sensing distance across the confirmed sizes

The M4 (30mm), M5 (30mm), and M6 (35mm) versions all list a 1.0mm ± 10% sensing distance on the factory chart, giving predictable, repeatable detection for close-range part/position sensing.

Copper (brass) body construction

All sizes use a copper/brass sensing body, per the product spec sheet.

Export-quality tier positioning at economy pricing

The E2E4/E2E5 short-body variants are explicitly positioned as the lower-cost options within this export-grade line, useful for high-volume OEM builds where per-unit cost is a key factor.

Applications

Part-present/part-absent detection on assembly or packaging lines — Small-diameter body suits mounting between fixture pockets on a conveyorized assembly line where a metal workpiece needs to be confirmed present before the next process step.

Rotary table / indexing table position detection — M-thread body can be mounted through a bracket to sense metal targets on a rotating index table, confirming the table has reached the correct station.

Metal can / bottle detection on beverage or packaging conveyors — The flush-mount M5/M6 versions can be side-mounted along a conveyor rail to detect metal cans passing on the line without protruding into the product path.

Pallet/carrier fixed-position detection on conveyor lines — Compact body mounts on conveyor rail brackets to confirm a pallet or carrier has stopped at the correct fixed position for downstream processing.

Machine guard door open/closed state detection — Mounted on the door frame, the sensor detects a metal target on the door to signal open/closed state to the machine controller as a basic input for interlocking logic (not a certified safety interlock switch).

Cylinder/actuator end-of-stroke detection in tight spaces — M4's small diameter is suited to installations where a standard-size proximity sensor cannot physically be mounted next to the actuator.

General machine-tool metal target sensing (jigs, tooling, guards) — Threaded M5/M6 bodies with a locknut allow adjustable-depth mounting typical of jig and fixture sensing points.

Models & Ordering Information

M4 Non-threaded, 30mm body (JJ4A3-1 series, export-grade)

JJ4A3-1-ZBXJJ4A3-1-ZAXJJ4A3-1-ZBYJJ4A3-1-ZAY

1.0mm ± 10% sensing distance; 4mm diameter, non-threaded body.

M4 Non-threaded, 25mm body (E2E4 series, economy)

E2E4-ZBXE2E4-ZAX

Shorter, lower-cost version of the standard M4. Source lists only two model numbers for this group; NC (Y-suffix) availability is unconfirmed.

M5 Threaded, 25mm body (E2E5 series, economy)

E2E5-ZBXE2E5-ZAX

Shorter, lower-cost version of the standard M5. Source lists only two model numbers for this group; NC (Y-suffix) availability is unconfirmed.

M5 Threaded (M5 x 0.5), 30mm body (JJ5A3-1 series, export-grade)

JJ5A3-1-ZBXJJ5A3-1-ZAXJJ5A3-1-ZBYJJ5A3-1-ZAY

1.0mm ± 10% sensing distance; flush (shielded) mount.

M6 Threaded (M6 x 0.75), 35mm body (JJ6A3-1 series, export-grade)

JJ6A3-1-ZBXJJ6A3-1-ZAXJJ6A3-1-ZBYJJ6A3-1-ZAY

1.0mm ± 10% sensing distance; flush (shielded) mount.

How to Select

M4 non-threaded: choose JJ4A3-1 series (30mm, 4mm diameter, mounted via bracket) or the shorter, lower-cost E2E4 series (25mm, 4mm diameter).
M5 threaded (M5 x 0.5): choose JJ5A3-1 series (30mm body, 20mm thread length, secured with a locknut) or the shorter, lower-cost E2E5 series (25mm body, 15mm thread length).
M6 threaded (M6 x 0.75): choose JJ6A3-1 series (35mm body, 18mm thread length, secured with a locknut).
Match output transistor type to your control circuit: model suffix "ZB" = NPN output; model suffix "ZA" = PNP output.
Match contact type to your logic: model suffix "X" = normally open (NO); model suffix "Y" = normally closed (NC), available on the JJ4A3-1/JJ5A3-1/JJ6A3-1 standard series.
For sensing distance, the M4 (30mm), M5 (30mm), and M6 (35mm) standard versions are all 1.0mm ± 10%; sensing distance for the E2E4/E2E5 economy versions is not documented and should be confirmed with the factory.
For flush (shielded) mounting near metal, the M5 (30mm) and M6 (35mm) standard versions are confirmed flush-mount; flush-mount status for M4 and E2E4/E2E5 is not documented and should be confirmed with the factory.
For cost-sensitive projects where installation space allows, prioritize the shorter E2E4 (M4/25mm) or E2E5 (M5/25mm) versions; choose the standard JJ4A3-1/JJ5A3-1/JJ6A3-1 versions when a longer probe or confirmed flush mounting is required.

📘 Need the full method? How to Choose a Proximity Sensor · NPN vs PNP Sensor Outputs Explained

When NOT to specify the Economy — and what to use instead

Detecting plastic, wood, liquid, or other non-metallic parts

Why not: This is an inductive-detection family; the spec sheet gives no rating for non-metallic targets.

Use instead: A capacitive proximity sensor series, which can detect non-metallic and liquid targets.

Need a confirmed sensing distance on the short E2E4 (M4/25mm) or E2E5 (M5/25mm) bodies

Why not: Sensing distance is confirmed at 1.0mm ± 10% only for the standard 30mm (M4/M5) and 35mm (M6) bodies; the E2E4/E2E5 economy bodies have no documented sensing-distance figure.

Use instead: The standard JJ4A3-1 (M4, 30mm) or JJ5A3-1 (M5, 30mm) body where a confirmed 1.0mm sensing distance is required.

Need flush (shielded) mounting on the M4 body or the E2E4/E2E5 economy bodies

Why not: Flush/shielded mounting is confirmed only for the M5 (JJ5A3-1, 30mm) and M6 (JJ6A3-1, 35mm) standard versions; flush status for M4 and E2E4/E2E5 is not documented.

Use instead: The confirmed-flush M5 (JJ5A3-1) or M6 (JJ6A3-1) version when embedding in surrounding metal is required.

Need a normally-closed (NC) output on the E2E4 or E2E5 economy bodies

Why not: The factory source lists only NO (X-suffix) part numbers for E2E4 and E2E5; NC (Y-suffix) availability for these two groups is unconfirmed.

Use instead: The standard JJ4A3-1/JJ5A3-1 series, which lists both X (NO) and Y (NC) suffixes.

Application needs more than 1.0mm sensing distance

Why not: The only confirmed sensing distance across this whole family is 1.0mm ± 10%; no longer-range model is listed.

Use instead: DAIDISIKE's high-quality threaded M4/M5/M6 series (up to 1.5mm) or a larger thread size (M8/M12) for longer range.

Machine-guard door interlocking or any personnel-safety function

Why not: The FAQ for this series explicitly states these are basic position/presence sensors, not certified safety switches.

Use instead: A dedicated safety-rated interlock switch or safety light curtain for guarding duty.

Specifications we do not publish yet

We only publish a figure once we are confident it is true. The items below are still being validated through further testing and real-world customer feedback, so for now we would rather leave them open than guess. If one of them matters to your design, ask us for the latest validated status.

Supply/operating voltage for this specific economy series (explicitly noted in the source FAQ as undocumented)
IP / ingress-protection rating
Sensing distance for the E2E4/E2E5 economy bodies
Flush-mount status for the M4 body and the E2E4/E2E5 economy bodies
NC (Y-suffix) output availability for E2E4/E2E5
Operating temperature range
Response time / switching frequency
Short-circuit or overload protection

Frequently Asked Questions

What is the difference between the M4 economy proximity switch and the E2E4 version?

Both are M4-size, non-threaded, 4mm-diameter inductive proximity switches. The standard M4 (JJ4A3-1 series) has a 30mm body, while the E2E4 series has a shorter 25mm body and is positioned as the lower-cost option.

Are these sensors NPN or PNP?

Both. Each size is offered in NPN output (model suffix "ZB", e.g. JJ4A3-1-ZBX) and PNP output (model suffix "ZA", e.g. JJ4A3-1-ZAX), so you can match your existing control wiring.

What does the "X" and "Y" at the end of the model number mean?

"X" indicates normally open (NO) contact output; "Y" indicates normally closed (NC) contact output, per the factory selection charts for the JJ4A3/JJ5A3/JJ6A3 series.

What is the sensing distance of these proximity switches?

The M4 (30mm body), M5 (30mm body), and M6 (35mm body) standard versions all have a confirmed sensing distance of 1.0mm ± 10%, per the factory selection tables. The sensing distance for the shorter E2E4/E2E5 versions is not documented in current materials and should be confirmed with the factory before ordering.

Can the M5/M6 versions be mounted flush with surrounding metal?

Yes for the standard 30mm (M5) and 35mm (M6) versions - the factory selection chart explicitly marks them flush/shielded mount. Flush-mount status for the M4 and E2E4/E2E5 versions is not documented and should be confirmed with the factory.

What is the sensor body made of?

A copper (brass) sensing body, per the product spec sheet for this series.

What is the M5 and M6 thread pitch?

M5 uses a 0.5mm thread pitch; M6 uses a 0.75mm thread pitch, per the dimension drawings for this series.

Can these be used as a safety interlock for a machine guard door?

These are basic inductive position/presence sensors, not certified safety switches. They can be used to feed an open/closed signal to a machine controller for general status monitoring, but they are not a substitute for a safety-rated interlock switch in a guarding application.

What supply voltage do these proximity switches use?

Working voltage is not documented in current product materials for this specific economy series and should be confirmed with the factory before specifying.

Do these carry an IP rating or specific certification?

Certification documents are available on request.

Works Well Together

On the same machine or line, Economy is typically ordered together with: Photoelectric Sensors · Relay & Timer Modules · Laser Switch Sensors

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