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Safety Interlock Switch with Guard Door Locking • High locking force of 1,200 N (270 lb.) locks guard door shut until machine is safe to enter • IP67 (NEMA 6) enclosure enables the TL4019 to withstand water washdown • Door and lock monitoring—the TL4019 has a total of 4 contacts: 2 N/C safety + 1 contact for door position monitoring + 1 contact for lock monitoring • Rear manual release—allows unlocking of switch from inside of guarded area per ANSI/RIA R15.06 • Narrow profile enables mounting to 2 in. square tubing or in applications with space restrictions • Rotatable head—the rotatable head of the TL4019 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 • A Rapid Delivery Product: Select models are available for shipment today or within 3 to 5 days
Any position 4 x M5 screws (not supplied) Approximately 100 mm (3.9 in.) with flex actuators Approximately 1000 mm (39 in.) with flat and 90-degree actuators 1200 N (270 lb.) 20 m/min. Reinforced thermoplastic Stainless steel 3 x M20 conduit with 0.5 in. NPT adapter 500 g (17 oz.) Red 1 x 106 minimum
Max Holding Force: Max Actuation Speed: Case Material: Actuator Material: Wiring Entry: Weight: Color: Mechanical Life: Environmental Protection: IP67 (NEMA 6) Operating Temperature: -20 to 55°C (-4 to 131°F) Cleaning: Water washdown Compliance Standards: EN1088, EN292, EN60947-5-1, EN60204-1 Approvals/Listings: CE marked for all applicable directives, UL and C-UL, BG Specifications are subject to change without notice. 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.
Select models are available for Rapid Delivery.
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G43
TL4019
Safety Interlock Switches
Operation Optional Slide Bolts • Allows easy installation of switch on machine guards • Actuator included (order switch separately)
Metal Slide Bolt
• Integral handle included • Metal is ideal for heavy doors; plastic is suitable for smaller and lighter doors • Slotted hole in bolt permits attaching multiple padlocks • Yellow color for easy recognition
Plastic Slide Bolt
G Alignment Guide
Flat Actuator
90-Degree Actuator
Optional Rear Release
Optional stainless steel alignment guide aids actuator entry and is easily installed.
Available with and without rubber bushings.
Available with and without rubber bushings.
• Allows manual rear release of a locked switch from inside a guarded area per ANSI/RIA R15.06 • May be installed on switch in conjunction with or without the use of a slide bolt • Must use with Rear Release Switch Models only
Optional Key Release
Flexible 1 Actuator
Flexible 2 Actuator
A key release unit is easily attached to the TL4019 to provide emergency override of the switch locking mechanism by a qualified, responsible person.
15 degree flexibility may be adjusted with the set screw.
15 degree flexibility may be adjusted with the set screw.
Rear Release Actuator (Included with Rear Release Switches)
Rear Release T-Handle (Order separately)
G44
Optional SLD Series
Optional LED Lid Kit
Optional switch locking devices are available. See accessories section for details.
Provides red and green LED indicators with user-configured operation.
www.sti.com/info
Optional Interior Lever Kit Use with metal rear release slide bolts.
TL4019
Safety Interlock Switches
Operation (continued) Contact Arrangements With Unlock Request Contact
With Door Contact
1UR
1WD 2WD 3WD
1 positively driven N/C contact as door unlock request contact 1 positively driven N/C contact + 1 N/O (without door contact)
Actuator Completely Inserted. Closed
Actuator Removed. Unlocked
Request
2 positively driven N/C contacts + 1 N/O + 1 N/O as door contact 2 positively driven N/C contacts + 1 N/O + 1 N/C as door contact 2 positively driven N/C contacts + 1 N/C + 1 N/O as door contact
Actuator
Removed
Actuator Inserted
Locked Unlocked
E1 E2
E1 E2
E1 E2
31
32
31
32
31
32
21
22
21
22
21
22
13
14
13
14
13
14
E1 E2
2 positively driven N/C contacts + 2 N/O Locked
Actuator Removed
Actuator Inserted
Unlocked
E1 E2
E1 E2
E1 E2
1UR
Without Door Contact 1ND
E1 E2
E1 E2
G 41
42
41
42
41
42
33
34
33
34
33
34
21
22
21
22
21
22
13
14
13
14
13
14
41
42
41
42
41
42
33
34
33
34
33
34
21
22
21
22
21
22
11
12
11
12
11
12
41
42
41
42
41
42
41
42
41
42
41
42
33
34
33
34
33
34
31
32
31
32
31
32
21
22
21
22
21
22
21
22
21
22
21
22
13
14
13
14
13
14
13
14
13
14
13
14
1ND
1WD
2WD
3WD
Select models are available for Rapid Delivery. Visit this product on www.sti.com for details..
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G45
TL4019
Safety Interlock Switches
Applications Typical applications are on sliding guard doors and swing ing guard doors that must remain locked until a signal is applied to the internal solenoid that unlocks the guard door.
a wiring example of the TL4019 switch with a ✎ For SR209AD delayed output safety monitoring relay see “Common Circuit Examples” in the Expert Area Section of this catalog on page A31.
Application Monitoring Units
G
SR223SMT Timer Unit Used with the TL4019 for machines with constant overrun. Gives a timed delay to the lock/release signal. Failsafe and adjustable to a range of times from 1.0 seconds up to 31 seconds.
SR125SMS45 Stop Motion Sensing Unit Used with the TL4019 for machines with inconstant or variable overrun. Senses back EMF of AC or DC motors. Failsafe and adjustable to a range of 0.01 V to 0.10 V.
Safety Monitoring Relay Units Safety monitoring relays ensure a maximum level of safety by monitoring all wiring in the safety circuit, including switches and contactors. Any fault and the power to the machine is switched off. A variety of safety monitoring relay units are available.
information on these Safety ✎ For Monitoring Relays, see page J1.
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G46
www.sti.com/info
TL4019
Safety Interlock Switches
Dimensions
(mm/in.)
TL4019
Optional Metal Slide Bolt for TL4019 h
31 1.22
3.5 0.14
20 0.79
Travel
Travel
18 0.71 30 For 1.18 Screw M6
V 35 43 1.38 1.69
192 7.56
42 60 1.65 2.36 76 3
Mechanical unlocking screw
M20 (3x)
14 0.55
35 1.38
Adjusting screw safeguarded For Screw M6
171.5 6.75
Mechanical unlocking mechanism (except TL4019-5)
144 5.67
Slot provided for rear release model Optional slide bolt interior kit PN 44534-8050 must be ordered separately
144 5.67
283 11.14
Overtravel Flat Actuator
16 0.63
30 1.18
40 1.57
All non-overtravel actuators 30 1.18
35 1.38 58 2.28
88 3.46
15 0.59
3 0.12
M5 (4x)
47 1.85
33 10 1.3 0.39
5.5 0.22
69 2.72 20 0.8
Min. door radius 1000 39.4
G
16 8 0.63 0.31
3 0.12 35 1.38
20 0.79
5.5 0.22
For Screw M6
Overtravel 90-Degree Actuator
Guard frame 40 40 X 1.57 1.57
30 1.18
305 12
19.5 0.77 40 1.57
110 4.33 20 0.79 For Screw M6
0.3 0.012 For M5 > 35 1.38 ISO 1207 (DIN 84) ISO 4762 (DIN 912)
15 0.59
15 0.59
40 1.57
58 2.28
18 0.7
62 2.44 Door hung on right
✎
48 1.89
135 5.31
For the optional Plastic Slide
Bolt Dimensions, see www.sti.com
Min. door radius 1000 39.4
Flexible 1 Actuator 50 1.97 40 1.575
14 0.55
Flexible 2 Actuator
29 4 1.14 0.16
Min. door radius 100 3.94
50 1.97 40 1.575
R> 100 3.94
Adjustment Screw
Ø5.5 0.216
Adjustment Screw 40 1.57
33.2 1.31
Min. door radius 90 3.54
Adjustment Screw 8 0.315
16 0.63 35 1.38
23 0.91 28 +7 1.1 +0.28
20 0.79 R> 90 3.54 Adjustment Screw
26 1.02 30 1.2
35 1.38
16 0.63
54 2.13
Ø5.3 0.21 19 0.75
8 0.315
18 0.71
10 0.39
28 +7 1.1 +0.28
35 1.38
16 0.63
Select models are available for Rapid Delivery. Visit this product on www.sti.com for details..
3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter
3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter
3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter
3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter
Select models are available for Rapid Delivery. Visit this product on www.sti.com for details..
G48
www.sti.com/info
TL4019
Safety Interlock Switches
Ordering (continued) Model TL4019-31102TM (flat actuator) TL4019-31102SM (90-degree actuator) TL4019-31102F2M (flex 2 actuator) TL4019-31102F1M (flex 1 actuator) TL4019-30243TM (flat actuator) TL4019-30243SM (90-degree actuator) TL4019-30243F2M (flex 2 actuator) TL4019-30243F1M (flex 1 actuator) TL4019-31103TM (flat actuator) TL4019-31103SM (90-degree actuator) TL4019-31103F2M (flex 2 actuator) TL4019-31103F1M (flex 1 actuator) TL4019-30241SKM w/key (90-degree actuator) TL4019-31101SKM w/key (90-degree actuator) TL4019-30242SKM w/key (90-degree actuator) TL4019-31102SKM w/key (90-degree actuator) TL4019-30243SKM w/key (90-degree actuator) TL4019-31103SKM w/key (90-degree actuator) Power to Unlock (with unlock request contact) (mechanical unlocking is not available on these switches) TL4019-50241TM (flat actuator) TL4019-50241SM (90-degree actuator) TL4019-50241F2M (flex 2 actuator) TL4019-50241F1M (flex 1 actuator) Switch Only (no actuators or adapters included) Power to Unlock (without door contact) TL4019-10241 TL4019-11101 Power to Unlock (with door contact) TL4019-30241 TL4019-31101 TL4019-30242 TL4019-31102 TL4019-30243 TL4019-31103 Power to Unlock (with unlock request contact) TL4019-50241 Power to Lock (without door contact) TL4019-20241 TL4019-21101 Power to Lock (with door contact) TL4019-40241 TL4019-41101 TL4019-40242 TL4019-41102 TL4019-40243 TL4019-41103 Rear Release (no actuators or adapters included; rear release actuator included; order T-handle separately) Power to Unlock (without door contact) TL4019-10241RR Power to Unlock (with door contact) TL4019-30241RR TL4019-30242RR TL4019-30243RR Power to Lock (without door contact) TL4019-20241RR Power to Lock (with door contact) TL4019-40241RR TL4019-40242RR TL4019-40243RR
Wiring Entry 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter 3 x M20 with NPT adapter
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G49
TL4019
Safety Interlock Switches
Ordering (continued) Accessories Standard Actuators Replacement flat actuator for TL4019 Replacement 90-degree actuator for TL4019 Replacement flex 2 actuator for TL4019 Replacement flex 1 actuator for TL4019 Standard Actuators with Rubber Bushing Replacement flat actuator RB for TL4019 Replacement 90-degree actuator RB for TL4019
G
Part No. 44534-0700 44534-0710 44534-0720 44534-0730 44534-0740 44534-0750
Overtravel Actuators Replacement flat actuator OT for TL4019 Replacement 90-degree actuator OT for TL4019 Replacement flex 2 actuator OT for TL4019 Replacement flex 1 actuator OT for TL4019 Overtravel Actuators with Rubber Bushing Replacement flat actuator OTRB for TL4019 Replacement 90-degree actuator OTRB for TL4019 Slide Bolts Bolt for right-hung door for TL4019 with/without rear release (yellow metal) Bolt for left-hung door for TL4019 with/without rear release (yellow metal) Plastic slide bolt for right or left-hung door for TL4019 (yellow) (okay for rear release switches) Slide bolt interior lever kit (use with rear release slide bolts only) Rear release T-handle (use with rear release switches only) Bracket for TL4019 (galvanized) Handle without snap-in (use with 44534-8020 bracket) (galvanized) Handle with snap-in (use with 44534-8020 bracket) (galvanized) Miscellaneous Stainless steel alignment guide for TL4019 (must use with Overtravel Actuator) Latch spring for TL4019 (provides greater retention force for actuator) Lockout bar for TL4019 (prevents insertion of actuator into switch) Key lock release for TL4019 (2 keys included) (Do not use with TL4019-5) Spare keys for key lock above (44534-0802) for TL4019 Spare keys for key lock (44534-0800, no longer available) Unique key lock release for TL4019 (2 unique keys included) (Do not use with TL4019-5) Replacement head for TL4019 LED lid kit (for 24 VAC/DC switches only)
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