Safety Interlock Switches
TL4024
Safety Interlock Switch
with Guard Door Locking
• High locking force of 1,500 N (337 lb.) locks guard door shut until machine is
safe to enter
• IP67 (NEMA 6) enclosure withstands water washdown
• Door and lock monitoring—the TL4024 has a total of 4 contacts: 2 N/C safety + 1
contact for door position monitoring + 1 contact for lock monitoring
• Unlocking is possible with a back load on the door to satisfy the demands of high
cycle time applications
• Narrow profile enables mounting to 2 in. square tubing or in applications with
space restrictions
• Rotatable head—the rotatable head provides 8 actuator entry positions to satisfy
most installation requirements
• Optional key release—this option on power-to-unlock models allows manual
unlocking of the guard door
• Optional slide bolt with integral door handle aids installation on sliding and
swinging guard doors
• Two LED (red/green) status indicators on the lid may be wired to suit the
application
• A Rapid Delivery Product: Select models are available for shipment today or
within 3 to 5 days
R
C
US
Conforms to EN60947-5-1, EN1088,
EN ISO 13849-1
UL and C-UL listed
DGUV approved
Specifications
Electrical
Safety Contacts:
2 N/C
Auxiliary Contacts:
1 N/O + 1 N/C
1 N/O + 1 N/O
Switching Ability
AC: 230 V – 4 A
DC: 24 V – 4 A
Safety Contact Material:
Minimum Current:
Solenoid Supply Voltage:
Solenoid Power:
Solenoid Rating:
Mechanical
Silver alloy with gold flash
12 V 10 mA, 24 V 1 mA
24 VAC/DC or 110 VAC (all -15% / +10%)
8 W
100% duty
Mounting:
Any position
Mounting Hardware:
Min Operating Radius:
Max Holding Force:
Max Actuation Speed:
Case Material:
Actuator Material:
Wiring Entry:
Weight:
4 x M5 screws (not supplied)
Approximately 300 mm (12 in.) with 90-degree actuator
1500 N (337 lb.)
20 m/min.
Anodized die-cast alloy
Stainless steel
3 x 0.5 in. NPT
800 g (28 oz.)
Red
Color:
Mechanical Life:
Environmental
Protection:
1 x 106 minimum
Specifications are subject to
change without notice.
IP67 (NEMA 6)
Note: The safety contacts of the STI
switches are described as normally
closed (N/C)—
i.e., with the guard closed, actuator
in place, and the machine able to
be started.
Operating Temperature:
Cleaning:
Compliance
Standards:
Approvals/Listings:
-20 to 80°C (-4 to 176°F)
Water washdown
EN60947-5-1, EN1088, EN ISO 13849-1, EN ISO14119
CE marked for all applicable directives, UL and C-UL, DGUV
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