GKLE44L9A2 Honeywell

Honeywell GKL/R Series - MICRO SWITCH Solenoid Safety Interlock Switches: MICRO SWITCH™ GKL/R Series switches are a heavy-duty key operated solenoid safety interlock switch incorporating a key trapping mechanism. The trapped key attached to the guard cannot be removed from the switch until the solenoid circuit of the switch has received a remote signal (from a control device) indicating the hazardous process has subsided. This design is for use on machinery where an instant stop is either impossible (due to the momentum of the machine) or impractical due to machine conditions (such as completing a machine cycle or reducing the temperature to a safe level). There are independent contacts inside the key switch which monitor the key position and the solenoid with a range of different contact arrangements to satisfy most application requirements. All normally closed contacts of the switch are positive opening . The key switch also incorporates a manual override feature on the front cover which allows removal of the key for emergency access. To facilitate installation, the switch is available as a GKL Series (head to the left) or a GKR Series (head to the right). The GKL/R Series switches are designed with dual-entry positions (side or top) for the key. Features:

Electrostatic epoxy coated die-cast zinc housing

Four different rugged stainless steel keys (two rigid and two flexible)

1NC/1NO, 2NC, 2NC/1NO, 2NC/2NO, 3NC/1NO, or 4NCcontact options each for monitoring the key and the solenoid

Positive opening normally closed contacts to EN/IEC 60947-5-1-3 specification

Mechanical latch (solenoid power to unlock) or solenoid latch (de-energize solenoid to unlock)

Wide range of supply voltages for solenoid

Manual unlock feature on front cover

Two LEDs in housing cover for monitoring the actuator key switch contacts and the solenoid switch contacts

Different conduit options for global applications

Operating temp. range: -25 °C to 85 °C [-13 °F to 185 °F]

Switch body environmentally sealed to IP68 and NEMA 1, 4, 6P, 12, & 13

CE, CSA, and UL agency certifications

Designed and agency evaluated for safety functions up to and including a SIL3 level Applications:

Up to four electrically independent contacts for each of the key and solenoid for monitoring the respective positions

Gold contacts available for low energy applications

Two LED indicators (green and red) to monitor status of key switch and solenoid switch

Rugged stainless steel rigid and flexible keys

Designed and evaluated up to and including a safety integrity level (SIL3) per IEC 61508-2:2010