Allen Bradley Guardmaster 440K Safety Interlock Switch, 2NC, Keyed, Glass Filled PBT

Give your machine guard door an upgrade with the 440K-T11280 Trojan T15 Safety Interlock Switch by Allen Bradley Guardmaster and ensure vital protection for equipment and operators.

This Trojan 15 unit is a universal tongue actuated interlock switch. It has compact housing to allow flexibility and suit your requirements. It also has dual entry slots. The head is conveniently rotatable to provide up to 4 actuator entry positions and can be moved only by releasing the cover screws. This safety switch is perfectly suited for use with hinged, sliding, and lift-off machine guard doors.

The 440K-T11280 Trojan T15 tongue interlock unit has 2NC (Normally Closed) safety contacts and M20 conduit entry. It features a robust GD2 metal head made of stainless-steel, providing greater durability against impacts and ensuring that this switch can meet more demanding applications. It has break-before-make action. This reliable interlock switch is also water-tight and fully dust-proof, giving it a high ingress protection rating of IP67. The housing material is red for high visibility and is comprised of resilient UL approved glass filled polybutylene terephthalate. It has a voltage rating of 600VAC and 600VDC. To operate the interlock the specially profiled key must be permanently fixed to the guard door and can then be inserted into the switch.

• Improved longevity due to the tough stainless-steel head, which ensures higher resistance to wear-and-tear and door misalignment
• Offers greater versatility due to compact size - 75 x 52 x 32mm
• Dual key entry slots and rotatable head which allows up to 4 actuator entry points
• Direct opening action contacts and tamper-resistant mechanism
• 3 M20 conduit entries
• Durable and dependable due to high IP67 environmental protection rating – suitable for wash-down environments

Note: Actuator is not supplied and must be ordered separately.
This device can be used with GuardLink, a new linking technology from Allen Bradley Guardmaster. GuardLink simplifies and reduces the connection time of the safety system while providing real-time diagnostic information over Ethernet IP. This simplifies the identification of the location of the device that has tripped the system. Thus, it reduces downtime and improves the overall efficiency of the machines. For more details, please refer to the GuardLink brochure.

EN 954-1
ISO 13849-1
IEC/EN 60204-1
NFPA 79
EN 1088
ISO 14119
IEC/EN 60947-5-1
ANSI B11.19
AS 4024.1
cULus approved
TÜV certified
CCC certified
IP67 rated (Enclosure)

Safety interlock switches work by securely locking guard doors and gates, preventing unsafe access to hazardous areas where machinery may be in operation. This helps to decrease the risk of injury to personnel and damage to equipment. They can also be used to monitor the status of the guard, and to ensure that machinery cannot start up or run while the guard door is open. They are often utilised in industrial applications, such as safeguarding factory production lines. They can vary in lock type, maximum current and voltage, and housing material. These interlock switches are specifically designed to meet high standards of protection.

Rockwell Automation is a global leader in industrial automation and digital transformation, and brings smart manufacturing to life. With a long legacy of creating Allen-Bradley® integrated control and information solutions, we help make you as productive as possible. Our portfolio of sensing, safety and motor control products can support your move towards smart machine applications. Allen-Bradley® IO-Link sensors are data-enabled and communicate with all field buses, providing diagnostic and health information about the device before a machine stops, and enabling quick production changeovers through fast parameter downloads from PLCs into the device. This reduces machine downtime and increases manufacturing OEE. For safety components, products with built-in diagnostics simplify the set-up of the smart device, and reduce maintenance, leading to a more efficient, machine data-driven approach.