Allen Bradley Guardmaster 440T Safety Interlock Switch, 2NO/2NC, Keyed, Stainless Steel

Use this safety interlock switch from Rockwell Automation's Allen Bradley Guardmaster range to protect operators from mechanical hazards. Its trapped key design means your machine only works when you insert the key into the lock. The vivid red tag lets you colour-code this unit for quick identification in emergencies. Thanks to a broad operating temperature range between -10°C and +40°C, you can safely use this unit in harsh environments. The switch's barrel is uniquely coded to work only with its assigned key, so you can rest assured that it's tamper-proof.

• Maximum current rating of 20A to withstand high-power systems
• Integrated actuator for hassle-free assembly
• Rugged stainless steel body is impact-resistant for lasting use
• Push-and-pull operation for easy key removal
• Protective cap to protect switch from weathering and contamination

• EN ISO 13489-1
• CE
• EN ISO 14119
• TÜV

Our Rotary Trapped Key Interlock Switches are used for electrical isolation of machinery to improve safe access and also as teach boxes in robot cells. Once the power has been turned off, the key can be withdrawn and used in the next sequence of operation such as unlocking an access hatch or allowing valves to be operated. The rotary switch can be mounted in a panel or purchased in an enclosure.

316 stainless steel keys
Direct drive operation positively opens contacts
Stainless steel dust cap included
Up to 100 A isolation
4 N.O. or 2 N.O. and 2 N.C. contacts
Available with up to 4 keys

This interlock switch has undergone rigorous testing, with the key inserted and removed multiple times. It can withstand up to 100,000 operations without suffering damage.