The OMRON/STI TL4019 is a tongue-operated safety interlock switch engineered to lock guard doors and prevent machinery operation when access points are open. It delivers a maximum holding force of 1,200 N (270 lb.) while maintaining IP67 (NEMA 6) environmental protection across an operating temperature range of -20 to 55°C (-4 to 131°F), making it suitable for water washdown industrial environments.
Technical Specifications
Electrical Performance
• Switching capacity: 4 A at 230 V AC / 4 A at 24 V DC
• Minimum current: 1 mA at 24 V
• Solenoid supply voltage: 24 VAC/DC or 110 VAC
• Solenoid power consumption: 8 W at 100% duty cycle
Mechanical Characteristics
• Locking force: 1,200 N (270 lb.) maximum holding force
• Actuation speed: Maximum 20 m/min
• Minimum operating radius: 100 mm (3.9 in.) with flexible actuators; 1,000 mm (39 in.) with flat and 90-degree actuators
• Mechanical durability: Minimum 1,000,000 operations
• Case material: Reinforced thermoplastic (red)
• Weight: 500 g (17 oz.)
• Mounting: Any position using 4 × M5 screws
• Wiring entry: 3 × M20 conduit with 0.5 in. NPT adapter
Contact Configuration
• Safety contacts: 2 Normally Closed (N/C) positively driven contacts with silver alloy/gold flash material
• Auxiliary contacts: Multiple configurations available including door position monitoring (N/O) and lock monitoring (N/C)
• Total contacts: 4 (2 N/C safety + 1 door position + 1 lock monitoring)
– Key Features
• Positively driven dual safety contacts ensure fail-safe operation
• 8 rotatable actuator entry positions accommodate flexible installation geometries
• Stainless steel actuator options (flat, 90-degree, flexible types with 15° adjustment capability)
• Door and lock status monitoring through separate contact outputs
• IP67 enclosure rated for washdown and harsh industrial conditions
– Typical Applications
Guard door interlocking on industrial machinery, access control for hazardous process areas, and equipment requiring positive door locking with status verification.
– Compatibility & Integration
The TL4019 accepts 24 VAC/DC or 110 VAC solenoid supply with 8 W power consumption. Contact configurations support integration with safety controllers requiring door position feedback and lock status confirmation.
