Why Choose the IMO AA1/CN-3A Inductive Proximity Switch?
The IMO AA1/CN-3A is a super-miniature 3 mm diameter shielded inductive proximity switch designed for reliable non-contact detection of metallic objects in compact industrial automation equipment. Part of the IMO Miniature Inductive AA Series, its extremely small cylindrical format makes it particularly useful where conventional M8, M12 or larger proximity sensors cannot be accommodated.
The AA1/CN-3A features a DC NPN normally closed (NC) output and a nominal sensing distance of 1 mm. Its shielded, flush-mountable sensing design allows the sensor to be installed directly into surrounding metal while maintaining dependable target detection, making it suitable for precision position, presence and end-of-travel sensing.
A durable stainless steel cylindrical housing, IP67 protection and integrated LED indication support reliable operation in industrial environments. The sensor is supplied with a 2 m PUR cable, providing a robust pre-wired connection for installation in machinery, automated assemblies and compact sensing systems.
Key Advantages
- Super-miniature 3 mm diameter housing for space-restricted machinery.
- 1 mm nominal sensing distance for precise metallic target detection.
- NPN normally closed output for compatible DC control systems.
- Shielded construction supports flush mounting in metal.
- Non-contact inductive sensing eliminates mechanical switch wear.
- IP67 protection supports operation in demanding industrial environments.
- Integrated LED switching indication simplifies commissioning and diagnostics.
- Supplied with a durable 2 m PUR cable for straightforward installation.
Key Features
- IMO Miniature Inductive AA Series.
- Inductive proximity sensing technology.
- 3 mm diameter cylindrical sensor.
- Shielded / flush-mountable design.
- 1 mm nominal sensing distance (Sn).
- DC NPN output.
- Normally closed (NC) switching function.
- Integrated LED indication.
- Stainless steel sensor housing.
- IP67 degree of protection.
- Pre-wired 2 m PUR cable.
- Designed for precise non-contact detection of metallic targets.
The IMO AA1/CN-3A uses an electromagnetic sensing field to detect metallic targets without physical contact. When a suitable metal object enters the sensor's detection zone, the inductive field changes and the electronic output switches accordingly. This non-contact operating principle avoids the mechanical wear associated with conventional limit switches and supports high-cycle automation applications.
With its exceptionally compact 3 mm diameter body, shielded mounting design and 1 mm sensing range, the AA1/CN-3A is particularly useful for detecting small machine components where installation space is restricted. Its stainless steel housing, IP67 protection, LED indication and PUR cable provide a practical combination for precise industrial position and presence sensing.
Typical Applications
- Metallic component presence detection.
- Precision position sensing.
- Compact automated machinery.
- Small assembly equipment.
- End-of-travel detection.
- Machine tooling and fixtures.
- Robotic and handling equipment.
- Packaging machinery.
- Production and assembly lines.
- OEM automation equipment with restricted installation space.
