Allen-Bradley 440G-TZS21UPRH Guard Locking Switch

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Allen-Bradley 440G-TZS21UPRH Guard Locking Switch

Product Specifications

• Series: Guardmaster 440G Safety Switch Series
• Mechanical Features:
  • Locking force: ≥1000N (resists forced opening)
  • Key type: Coded mechanical key, supports single-key interlock system (up to 30 switches in series)
  • Door status detection: Achieved via 2 NC (normally closed) safety contacts and 1 NO (normally open) auxiliary contact
• Electrical Specifications:
  • Rated voltage: 24V DC (safety circuit)/250V AC (auxiliary circuit)
  • Safety contact rating: 5A @ 24V DC
  • Auxiliary contact rating: 10A @ 250V AC
• Communication: Supports connection to Allen-Bradley GuardLink safety network for remote status monitoring and fault diagnosis
• Safety Approvals: UL Type 4X (corrosion-resistant), IP67 (dust/waterproof), NEMA 1/3R/4/4X/13

ore Functions

1. Dual Safety Mechanisms:
   • Mechanical locking: Physically locks protective doors with a stainless-steel latch to prevent accidental opening;
   • Electrical interlocking: Safety contacts hardwire to the control system, cutting power within ≤10ms when the door opens.
2. Flexible Interlock Design:
   • Supports series interlocking of multiple switches for collaborative safety control in large equipment clusters;
   • Configurable key interlock logic (e.g., "door open-power off-key release" sequence control).
3. Diagnostics & Maintenance:
   • Built-in LED status indicators (power/fault/lock status);
   • Compatible with FactoryTalk View SE software for real-time safety circuit integrity monitoring.
4. Industrial Durability:
   • Housing made of fiberglass-reinforced polyamide, resistant to chemical corrosion (suits oily/coolant environments);
   • Mechanical life ≥1,000,000 cycles, electrical life ≥500,000 operations.

The structure and details of the product：

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