The 440G-T27129 TLS-2-GD2 Solenoid Interlock Safety Switch by Allen Bradley Guardmaster keeps machine guards fully secured and provides excellent protection. This reliable safety switch is a positive mode, tongue-operated interlock switch. It ensures that machine guards are safely locked while machinery is in motion, helping to prevent the risk of personnel entering a dangerous area where injuries may occur.

The TLS-2-GD2 guard-locking switch is perfect for use with machines which do not stop instantly, or which may be damaged by interference while in motion. It is also suitable for use with PLCs. The safety barrier can only open when the internal solenoid is de-energised by an external signal. It also keeps power isolated when the barrier is open, ensuring vital protection for machine operators. This cost-efficient safety interlock switch has 2 entry slots on the head and it can also be rotated to offer 4 actuator entry positions. A blanking plug is provided to seal the unused slot.

The 440G-T27129 safety interlock switch is Power-to-Lock with M20 Conduit entry. It has 2NC safety contacts and 1NO auxiliary contact. The solenoid voltage is 230 V ac/dc. This TLS-2-GD2 switch offers superior stability for the safety door with a high holding force of 2000N (450 lbs). The housing material is comprised of durable UL approved glass-filled PBT. The solenoid contacts are 1NC/1NO. This versatile switch has an environmental protection rating of IP67, making it fully protected against ingress of dust particles and able to withstand temporary immersion in water. This makes it perfect for use in wet environments where regular wash downs are necessary. This unit has a rated insulation voltage is 500V and the thermal current is 10A. It has an operating temperature range of -20°C to + 60°C (-4°F to +140°F).

Note: Actuator is not supplied and must be ordered separately.

Warning: With the ’power to lock’ function, provisions are required to ensure that a dangerous situation cannot result from open circuit faults or power cuts.

• Convenient rotatable head with four possible actuator entry points
• Suitable for use with PLCs
• Blanking plug allows the unused slot to be sealed
• Lid mounted status indication for rapid troubleshooting and door status
• Five contacts: 2NC/1NO for door position monitoring, 1NC/ 1NO for lock monitoring
• IP67 rated, ensuring no ingress of dust particles and durable against temporary immersion in water
• Stainless-steel actuator guide fitted to protect the unit from actuator damage due to poor guard alignment or wear

EN954-1
ISO13849-1
IEC/EN60204-1
NFPA79
EN1088
ISO14119
IEC/ EN60947-5-1
ANSI B11.19, AS4024
CE certified
UL approved
cULus approved
TUV certified
CCC certified
IP67 rated

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.

A solenoid interlock switch is a type of safety switch with an internal solenoid; a wire coil which converts electrical energy to mechanical. This type of mechanism limits access to dangerous areas where machinery may be functioning by ensuring that that barriers remain securely shut. The safety guard can only be opened through either energising (Power to Release) or de-energising (Power to Lock) the solenoid with an external signal. They are often used in industrial environments, for example with high inertia rotating machines.