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AB1/AN-3A IMO Inductive Proximity Switch M4 Shielded, PUR Cable 2m
IMO AB1/AN-3A is an M4 shielded inductive proximity sensor with a 1 mm sensing distance, 10-30 V DC supply, NPN normally open output and 2 m PUR cable for precise industrial metal detection.
£71.07
Why Choose the IMO AB1/AN-3A Inductive Proximity Sensor?
The IMO AB1/AN-3A is a miniature M4 inductive proximity sensor designed for precise, non-contact detection of metallic objects in industrial machinery and automation systems. As part of the IMO AB1 miniature cylindrical inductive sensor series, its compact threaded stainless-steel housing provides an effective sensing solution where installation space is limited.
This sensor features an NPN normally open (NO) output and a nominal sensing distance of 1 mm. Its shielded construction allows flush installation into surrounding metal, making it particularly suitable for precision positioning, component detection, machine sequencing and automated production equipment.
Operating from a 10–30 V DC supply, the AB1/AN-3A supports load currents up to 100 mA and a fast switching frequency of 3.5 kHz. A durable 2 m PUR cable, AISI 303 stainless-steel housing and IP67 protection rating provide dependable performance in demanding industrial environments.
Key Advantages
- Compact M4 inductive proximity sensor for space-restricted machinery.
- 1 mm nominal sensing distance for precise metallic object detection.
- NPN normally open output for integration with compatible PLCs and industrial controllers.
- Fast 3.5 kHz switching frequency for high-speed detection applications.
- Shielded construction enables convenient flush mounting into surrounding metal.
- Durable AISI 303 stainless-steel housing for industrial environments.
- IP67 protection provides resistance against dust and water ingress.
- Integrated short-circuit, reverse-polarity, impulsive-overvoltage and inductive-load protection.
Key Features
- IMO AB1 miniature cylindrical inductive sensor series.
- M4 × 0.5 threaded cylindrical housing.
- 1 mm nominal sensing distance.
- 0–0.81 mm operating distance.
- NPN normally open (NO) switching output.
- 10–30 V DC operating voltage.
- Maximum 100 mA load current.
- 3.5 kHz switching frequency.
- Yellow LED output-state indication.
- 2 m PUR fixed cable connection.
- Shielded design for flush installation.
- IP67 environmental protection.
- CE and UL approved.
Precise Non-Contact Detection for Industrial Automation
Inductive proximity sensors such as the IMO AB1/AN-3A detect metallic targets without requiring physical contact. When a suitable metal object enters the sensor's electromagnetic detection field, the sensor changes its output state, allowing a PLC or industrial controller to accurately determine the presence or position of the target without the mechanical wear associated with contact-based switching.
The AB1/AN-3A combines its miniature M4 threaded housing with a 1 mm nominal sensing distance and fast 3.5 kHz switching frequency. Its shielded construction, robust electrical protection and stainless-steel body make it particularly useful for compact automated machinery and precision mechanisms requiring dependable high-speed sensing.
Typical Applications
- Precision machine positioning and detection.
- Compact automated production machinery.
- Robotics and robotic gripper systems.
- Component presence and position monitoring.
- Electronic assembly equipment.
- Packaging and processing machinery.
- High-speed counting and detection systems.
- OEM machinery with restricted installation space.
Technical Specifications
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| Supply Voltage | 12 V DC, 24 V DC | |
|---|---|---|
| Coil / Supply Voltage | 10–30 V DC | |
| Mounting Condition | Flush | |
| IP Rating | IP67 | |
| Output Type | NPN | |
| Sensing Principle | Inductive | |
| Housing Size | M4 | |
| Sensing Distance | 1 mm | |
| Output Function | NO | |
| Connection | Cable | |
| Manufacturer | IMO | |
| Series | AB1 Miniature Inductive Sensors | |
| Model | AB1/AN-3A | |
| Product type | Inductive proximity sensor | |
| Detection principle | Inductive | |
| Housing size | M4 × 0.5 | |
| Housing length | 22 mm | |
| Nominal sensing distance | 1 mm | |
| Operating distance | 0–0.81 mm | |
| Standard target | 4 × 4 mm FE360 | |
| Output Type | NPN | |
| Output function | Normally open (NO) | |
| Operating voltage | 10–30 V DC | |
| Maximum load current | 100 mA | |
| No-load supply current | ≤10 mA | |
| Leakage current | ≤10 µA | |
| Output voltage drop | ≤1.5 V at 100 mA | |
| Maximum ripple | ≤10% | |
| Switching frequency | 3.5 kHz | |
| Repeat accuracy | <5% | |
| Hysteresis | 1–20% | |
| Power-on delay | ≤50 ms | |
| Mounting | Shielded / flush | |
| Housing material | AISI 303 stainless steel | |
| Active head material | PBT | |
| Connection | 2 m PUR cable | |
| LED indication | Yellow output-state LED | |
| Tightening torque | 1.5 Nm | |
| Weight | 30 g | |
| Operating temperature | −25 to +70 °C | |
| Protection rating | IP67 | |
| Short-circuit protection | Yes, auto-reset | |
| Reverse-polarity protection | Yes | |
| Impulsive-overvoltage protection | Yes | |
| Protection against inductive loads | Yes | |
| EMC compatibility | IEC 60947-5-2 | |
| Shock resistance | IEC 60068-2-27 | |
| Vibration resistance | IEC 60068-2-6 | |
| Approvals | CE, UL | |
| HS Code | 8536508000 |
Frequently Asked Questions
What is the IMO AB1/AN-3A used for?
The IMO AB1/AN-3A is an M4 inductive proximity sensor used for non-contact detection of metallic objects in compact industrial machinery, positioning systems and automated equipment.
What is the sensing distance of the IMO AB1/AN-3A?
The AB1/AN-3A has a nominal sensing distance of 1 mm, with an operating distance of approximately 0–0.81 mm.
What output does the AB1/AN-3A use?
The sensor provides an NPN normally open (NO) output for connection to compatible PLC inputs and industrial control systems.
What supply voltage does the AB1/AN-3A require?
The IMO AB1/AN-3A operates from a 10–30 V DC supply and supports a load current of up to 100 mA.
Can the IMO AB1/AN-3A be flush mounted?
Yes. The AB1/AN-3A has a shielded design suitable for flush mounting into surrounding metal, making it particularly useful in compact industrial installations.
Trusted by Industrial Automation Professionals Worldwide
IMO miniature inductive proximity sensors provide compact and dependable non-contact detection for machine builders, control engineers and industrial automation professionals, combining precise sensing with robust construction for demanding machinery applications.
