Overview
The Idec FB 858T Type 4X control box is a rugged industrial control station enclosure featuring a Type 4X NEMA rating and IP65 protection. Manufactured by IDEC, a leader in industrial automation controls, this pushbutton enclosure delivers dependable performance in demanding facility environments. The polycarbonate construction and sealed design provide excellent protection against moisture, dust, and harsh operating conditions while maintaining a compact footprint for panel integration.
Key Features
- Type 4X NEMA and IP65 rated polycarbonate enclosure for indoor industrial applications
- Screw terminal connections for secure wire attachment
- Supports up to three 22mm pushbuttons or pilot devices with factory cutouts
- On/off retractive pushbutton operation for safe control
- Compatible with both AC and DC current types
- cUL approved for North American industrial use
- Available with red, green, orange, and black button color options
Technical Specifications
- Manufacturer: IDEC
- Model: FB Control Box Type 4X (858T designation)
- Enclosure Rating: Type 4X NEMA, IP65
- Material: Polycarbonate
- Operating Current: AC and DC compatible
- Operation Method: On/Off (retractive pushbutton)
- Mounting Holes: 3-hole configuration, 22mm diameter
- Termination: Screw terminal connections
- Number of Positions: 2
- Approval: cUL certified
- Environment: Indoor use only
Typical Applications
This control box excels in manufacturing plants, assembly lines, pump stations, and facility automation where a compact, sealed pushbutton interface is required. Common uses include motor start/stop stations, emergency stop circuits, machine cycle control, and process interlocking. The IP65 rating makes it suitable for washdown zones and areas exposed to light moisture and airborne contaminants. Maintenance technicians and system integrators frequently deploy these enclosures in retrofit and new installation projects where NEMA 4X compliance and rapid device mounting are essential.
Compatibility & Replacements
Compatible With
- IDEC 22mm pushbuttons and pilot lights
- Third-party 22mm industrial control devices
- AC and DC control circuits (standard industrial voltages)
- Panel-mount operator stations and control cabinets
- IDEC pilot device ecosystem
Replaces / Drop-In Replacement For
This Type 4X enclosure is directly compatible with other IDEC FB Series control boxes. Verify exact model number compatibility with your system integrator before ordering, as different FB Series variants (Type 1, Type 4, Type 4X) have different environmental ratings.
Works With
- Standard industrial 22mm pushbutton inserts
- IDEC control station product line
- Allen-Bradley, Siemens, and other mainstream PLC control networks via pushbutton wiring
- Factory automation systems using discrete operator interfaces






