800FM-KM21MX11

Overview of Allen Bradley 800FM-KM21MX11

The Allen Bradley 800FM-KM21MX11 is a 22 mm Key Selector Switch from the trusted 800F series, designed for industrial applications requiring precise control and durable performance. This model features a metal round operator construction rated for Type 4/13 and IP66 environments, ensuring protection against dust, water, and harsh industrial conditions. The maintained 2-position key selector operates with a left key removal, providing secure and reliable switching. Ideal for control panels and automation systems, the 800FM-KM21MX11 offers robust functionality in a compact form factor, backed by Allen Bradley’s legacy of quality and durability. Its metal design supports easy mounting and integration within existing control schemes.

Key Features of Allen Bradley 800FM-KM21MX11

• 22 mm round metal operator construction with Type 4/13, IP66 protection
• Key selector switch with maintained 2-position functionality for secure control
• Left key removal for enhanced operational safety and control locking
• Standard key code 3825 for consistent key management
• Metal latch mounting style for secure installation on panels
• Includes 1 Normally Open (N.O.) and 1 Normally Closed (N.C.) contact block
• Durable zinc alloy operator with high mechanical reliability
• Suitable for demanding industrial environments requiring robust selector controls
• Compatible with a variety of control circuit applications requiring keyed operation

Technical Specs of 800FM-KM21MX11

Specification	Details
Operator Construction	Round Metal (Zinc Alloy)
Operator Type	Key Selector
Function	Maintained, 2 Position
Key Removal	Left
Contact Blocks	1 N.O. + 1 N.C.
Mounting Style	Metal Latch Mount
Protection Rating	Type 4 / 13, IP66
Mechanical Durability	Up to 10 million cycles
Key Code	3825 (Standard)

Applications / Use Case

The Allen Bradley 800FM-KM21MX11 key selector switch is well-suited for industrial automation, control panels, and machinery requiring secure operator control with key access. It is commonly used in manufacturing plants, processing facilities, and other environments where operator actions need to be limited to authorized personnel. This model is ideal for applications such as motor control, system enable/disable circuits, and safety interlock operations. Its robust construction and IP66 rating make it reliable in harsh conditions including dust, moisture, and washdown environments. The ability to remove the key in one position provides added security by preventing unintended switching, making it effective for lockout/tagout procedures or operational mode selection.

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