Allen Bradley Guardmaster 440K Safety Interlock Switch, 3NC/1NO, Keyed Actuator Included, Glass Filled PBT

Experience highly secure guard interlocking for machinery and protect personnel from entering dangerous areas with the Trojan 6 Safety Interlock Switch by Allen Bradley Guardmaster. This tongue interlock switch features dual entry slots and the head can be rotated, providing 4 actuator entry positions for greater application flexibility. The head is movable only by releasing the cover screws.

The 440K-T11171 Trojan 6 Safety Interlock Switch has 3NC safety contacts, 1NO auxiliary contact. It has break-before-make action and M20 conduit entry. It comes with a standard type actuator made of tough stainless-steel to provide a longer service-life. The housing is made of durable UL approved glass-filled polyester, which is red for improved visibility. It is also environmentally sealed to IP67, ensuring that it is fully protected against ingress of dust and can withstand regular washdowns. This reliable safety switch is designed specifically to be fitted at the leading edge of hinged, sliding and lift-off machine guards.

The Trojan 6 switch is operated by inserting a specially profiled key, which is permanently fixed to the door. It incorporates a self-ejecting mechanism which prevents use of the switch if the actuator is not mounted to the door, ensuring greater security. The 440K Trojan 6 interlock units provide cost-efficient and safe electrical interlocking of the guard to the control circuit of the machine.

• Dual key entry slots and rotatable head to allow up to 4 actuator entry points
• Self-ejecting tamper resistant actuator that operates only when mounted to the guard
• Durable and versatile - can be used in most applications
• Forced guided contacts
• High IP67 environmental protection rating

Note: All switches come with an actuator.
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 listed
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 machinery. They can also be used to monitor the status of the machine 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.