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Actuator Type

Flex Actuator

None

90-Degree Actuator

Flex 1 Actuator

Conduit Size

G1/2

1/2-14NPT, includes M20-to-1/2-14NPT conversion adapter

3 x 0.5 in. NPT

3 x M20 with National Pipe Thread (NPT) Adapter

Pg13.5

M20 with National Pipe Thread (NPT) Adapter

3 x M20 with NPT adapter 

Contact Configuration

3 NC + 3 NC

3 NC + 2 NC / 1 NO

2 NC / 1 NO + 2 NC / 1 NO

2 NC / 1 NO + 3 NC

3 Normally Closed (NC) + 2 Normally Open (NO)

3NC + 3NC

2 NC + 1 NO + 1 NC

2 NC + 1 NO + 1 NO 

3NC + 2NC/1NO

2NC/1NO + 3NC

2NC/1NO + 2NC/1NO

2 NC / 1 NO + 2 NC

3 NC + 2 NC

2 NC + 2 NC

3 NC + 1 NC / 1 NO

1NC/1NO + 1NC/1NO

1 NC / 1 NO + 1 NC / 1 NO

2 NC + 1 NC / 1 NO

2 NC / 1 NO + 1 NC / 1 NO

Door Lock and Release

Mechanical lock/solenoid release

Solenoid lock/mechanical release

Power to Unlock

Power to Lock

Power to Unlock (with back load unlocking)

Power to Unlock with Key

Electrical Operations [Min]

1,000,000

500,000

Enclosure Rating

IP67

Head Material

Plastic

C150: 2.5 A at 120 VAC, R150: 1.0 A at 125 VDC

Metal

Anodized die-cast alloy

Glass-Filled Polyester

Indicator Color

Orange, Green

IP Rating

IP68

Key Holding Force

1300 N

3000 N

1500 N

2000 N

700 N

1200 N

Number of Contacts

Operating Temperature [Max]

60 ºC

176 ºF

55 ºC

131 ºF

Operating Temperature [Min]

-20 ºC

-4 ºF

-10 ºC

14 ºF

Release Key Type

Standard release key (metal)

Special release key (resin)

Standard

Special release key

Special release key + rear release button

Trapped key

Special Release Key

Type

Safety Interlock Switch

Door Switch

Omron

D4NL-4BFG-B-NPT

1/2-14 National Pipe Thread (NPT) Conduit Size Guard Lock Safety Door Switch

D4NL-4CFA-B4-NPT

D4NL-4CFA-B-NPT

D4NL-4CFG-B4-NPT

D4NL-4CFG-B-NPT

D4NL-4DFA-B4-NPT

D4NL-4DFA-B-NPT

D4NL-4DFG-B4-NPT

<section><h2>Our most popular guardlocking safety door switch</h2><div class='introduction'><p>The D4NL guard-lock safety door switches are available with four or five built-in contacts. When locked, they have a key holding force of up to 1300N. Mechanical lock/solenoid release types and vice versa set up the complete range in combination with various conduit types, e.g. M20.</p><ul><li>Safety door switch with electromagnetic lock or unlock mechanism</li><li>Models with four or five built-in contacts</li><li>Strong key holding force:  1300N</li><li>For standard loads and micro loads</li><li>Keys are compatible with D4GL and D4NS</li></ul></div><section><div class='description'></div></section><h3>Overview</h3><section class='left'><figure><img alt='CCC_CE_TUV_CULlisted.jpg' src='/shop/images/product/omron/descriptions/CCC_CE_TUV_CULlisted_tcm824-100982.jpg' style='max-height: 232px; max-width: 192px'></figure><div class='description'><ul><li>Best-selling guard lock safety-door switch available in several compact, multi-contact models</li><li>Selectable Operation Key insertion direction and adjustable mounting ensure installation flexibility</li><li>Lineup includes models with a conduit size of M20</li><li>IP67 degree of protection</li><li>Variety of metallic heads available</li></ul></div></section><h3>Contact Form</h3><section class='top'><figure><img alt='D4NL_connectionForm.jpg' src='/shop/images/product/omron/descriptions/D4NL_connectionForm_tcm824-101411.jpg' style='max-height: 1458px; max-width: 767px'></figure><div class='description'></div></section></section>

D4NL4DFGBNPT

2NC+2NC,SOL. LOCK ,STD RLS KEY,PLASTIC HEAD

D4NL-4EDA-B

M20 Conduit Size Guard Lock Safety Door Switch

D4NL4EDHB

2NC/1NO+1NC/1NO,SOL. RLS,SPEC RLS KEY,METAL HEAD

D4NL-4EFA-B4-NPT

D4NL-4EFA-B-NPT

D4NL4EFGB4NPT

2NC/1NO+1NC/1NO,SOL. LOCK ,SPEC RLS KEY,PLASTIC HEAD

D4NL4EFHB

2NC/1NO+1NC/1NO,SOL. RLS,SPECRLS KEY,METAL HEAD.

D4NL-4FDG-B4-NPT

D4NL4FFAB4NPT

2NC/1NO+2NC,SOL. RLS ,SPEC RLS KEY,PLASTIC HEAD

D4NL4FFGB4NPT

2NC/1NO+2NC,SOL. LOCK ,SPEC RLS KEY,PLASTIC HEAD

D4NL4FFGBNPT

2NC/1NO+2NC,SOL. LOCK ,STD RLS KEY,PLASTIC HEAD

D4NL4GFAB4NPT

3NC+1NC/1NO,SOL. RLS ,SPEC RLS KEY,PLASTIC HEAD

Robotic System integrators have to implement risk reduction strategies that prevent workers from becoming trapped inside a hazardous area as well as meet different safety standards and regulations. The D4SL series offers a guard lock interlock with a holding force of 1300N preventing unauthorized access and an optional lockout key reduces the risk of someone being trapped inside a robotic cell.  The D4SL helps to reduce time and effort during the installation with a variety of wiring options and the small front allows easily mounting on 40 × 40 mm aluminum frames. Additionally, the D4SL simplifies integrations and lowers maintenance costs with a wide variety of built-in switches, an optional slide key, and led status indicators.<ul>
<li>Key holding force of 1,300 N.</li>
<li>Slide key prevents entrapment</li>
<li>Removable terminal block for easy wiring</li>
<li>Metal operation head for durability</li>
</ul>
<h4>Overview</h4>
<p><img src="https://assets.omron.com/m/34fa339208289f6a/CE_CRUUS_TUB-jpg.jpg" alt="CE_CRUUS_TUB.jpg" title="CE_CRUUS_TUB.jpg"></p>
<ul>
<li>Wiring time is reduced with two types of wiring methods capable of one-touch attachment and removal.</li>
<li>A wide variety of built-in switches can be used for various devices. (4-, 5-, and 6-contact models are available)</li>
<li>Key holding force of 1,300 N.</li>
<li>It is possible to change the key insertion point without detaching the head.</li>
<li>Drive solenoids directly from the Controller.</li>
</ul>
<h4>Slide Key</h4>
<p><img src="https://assets.omron.com/m/3f1975997604e91a/D4SL-N_Slide_Key-jpg.jpg" alt="D4SL-N_Slide_Key.jpg" title="D4SL-N_Slide_Key.jpg"></p>
<p><strong>Trapped key allows the handle to be locked in the open position; prevents entrapment inside</strong></p>
<ul>
<li>Lockout Key to prevent workers from becoming trapped inside the hazardous area.</li>
<li>The vertical D4SL Guard Lock Safety-door Switch can be easily mounted on 40 x 40 mm aluminum frames.</li>
<li>The plastic material makes the Key suitable for lightweight doors.</li>
</ul>
<h4>Removable Terminal Block</h4>
<p><img src="https://assets.omron.com/m/55d983e2736025c1/D4SL-N_Removable_Terminal_Block-jpg.jpg" alt="D4SL-N_Removable_Terminal_Block.jpg" title="D4SL-N_Removable_Terminal_Block.jpg"></p>
<p>Easier to wire and allows for quick maintenance if the switch is damaged and needs replacing.</p>
<p><img src="https://assets.omron.com/m/7a290b3316eff49e/D4SL-N_order_info2-jpg.jpg" alt="D4SL-N_order_info2.jpg" title="D4SL-N_order_info2.jpg"></p>
<h4>Metal Operation Head</h4>
<p><img src="https://assets.omron.com/m/0b27ce1f449578a6/D4SL-N_metal_Operation_Head-jpg.jpg" alt="D4SL-N_metal_Operation_Head.jpg" title="D4SL-N_metal_Operation_Head.jpg"></p>
<p>Improved durability with optional metal operation head; fixed head design eliminates the leading cause of unintended failure with removal, replacement or loose operating head.</p>
<h4>Door Switch Features</h4>
<p><img src="https://assets.omron.com/m/003257c6575c9dd3/D4SL-N_DoorSwitchFeatures-jpg.jpg" alt="D4SL-N_DoorSwitchFeatures.jpg" title="D4SL-N_DoorSwitchFeatures.jpg"></p>


D4SL-N Guard Locking Switch

Gates protected with guard locking switches are usually only opened under very limit circumstances, like troubleshooting or maintenance tasks. To help machines designers, the D4JL series offers a set of features to make it easier to develop a compliant safety solution according to international safety standards. The D4JL offers two safety circuits and two monitor contacts, optional trapped keys to prevent workers from being locked in hazardous areas and rear release buttons to allow people to unlock the switch and escape if they are locked into hazardous areas. In addition, the D4JL series offers IP67 protection, led indicators, and mounting slides key.<ul>
<li>Ideal for large, heavy doors</li>
<li>Two safety circuits and two monitor contacts provide an array of monitoring patterns.</li>
<li>Standard gold-clad contacts enable use with ordinary loads and microloads.</li>
<li>Trapped key models</li>
<li>Models with rear release buttons allow people to unlock the Switch and escape if they are locked into hazardous areas</li>
</ul>
<h4>Overview</h4>
<p><img src="https://assets.omron.com/m/7eff993139cd36ee/CCC_CE_TUV_S_CULlisted-jpg.jpg" alt="CCC_CE_TUV_S_CULlisted.jpg" title="CCC_CE_TUV_S_CULlisted.jpg"></p>
<ul>
<li>Holding force of 3,000 N</li>
<li>Models with trapped keys prevent workers from being locked in hazardous work areas</li>
<li>IP67 degree of protection</li>
</ul>
<h4>Circuits and Monitor Contacts</h4>
<p><img src="https://assets.omron.com/m/62a4478d6becef88/D4JL_Two_Circuits_Contacts-jpg.jpg" alt="D4JL_Two_Circuits_Contacts.jpg" title="D4JL_Two_Circuits_Contacts.jpg"></p>
<h4>Rear Release Buttons</h4>
<p><img src="https://assets.omron.com/m/085a59474d04884f/D4JL_Rear_Release-jpg.jpg" alt="D4JL_Rear_Release.jpg" title="D4JL_Rear_Release.jpg"><img src="https://assets.omron.com/m/4bf6960d2440014d/D4JL_Slide_Key-jpg.jpg" alt="D4JL_Slide_Key.jpg" title="D4JL_Slide_Key.jpg"></p>
<p>A Switch with a rear release button allows the door to be unlocked from inside a hazardous area in an emergency. We also offer Switches with Special Slide Keys. Refer to the D4NS-SK/D4JL-SK for details.</p>
<h4>Connections</h4>
<p><img src="https://assets.omron.com/m/1d899fed6f86e777/D4JL_contactForm-jpg.jpg" alt="D4JL_contactForm.jpg" title="D4JL_contactForm.jpg"></p>


D4JL Guard Locking Switch

Designing a risk reduction strategy where inertia plays a critical role in the risk assessment, such as rotating equipment and high pressure pneumatic valves, is challenging.  The D4NL series is a flexible and cost effective guard-locking door switch designed to prevent access to hazards in this situations. With the various combinations of mechanical lock/solenoid release, the D4L has a key holding force of up to 1300N, reducing the risk of access to the hazard.  The D4L simplifies installation and maintenance with a plastic housing, availability with four or five built-in contacts, compatibility various conduit types and sharing a common key set with D4GL and D4NS series.<ul>
<li>Safety door switch with electromagnetic lock or unlock mechanism</li>
<li>Models with four or five built-in contacts</li>
<li>Strong key holding force: 1300N</li>
<li>For standard loads and micro loads</li>
<li>Keys are compatible with D4GL and D4NS</li>
</ul>
<h4>Overview</h4>
<p><img src="https://assets.omron.com/m/4210a3e371254d5f/CCC_CE_TUV_CULlisted-jpg.jpg" alt="CCC_CE_TUV_CULlisted.jpg" title="CCC_CE_TUV_CULlisted.jpg"></p>
<ul>
<li>Best-selling guard lock safety-door switch available in several compact, multi-contact models</li>
<li>Selectable Operation Key insertion direction and adjustable mounting ensure installation flexibility</li>
<li>Lineup includes models with a conduit size of M20</li>
<li>IP67 degree of protection</li>
<li>Variety of metallic heads available</li>
</ul>
<h4>Contact Form</h4>
<p><img src="https://assets.omron.com/m/62c8a4da50c2b2fb/D4NL_connectionForm-jpg.jpg" alt="D4NL_connectionForm.jpg" title="D4NL_connectionForm.jpg"></p>


D4NL Guard Locking Switch

<p>Machine builders producing machinery that involves high-risk levels often look to implement safety interlocks that have both a high locking force and are easy to install and maintain. For a long life and low maintenance, the TL8012-S series has stainless steel actuators and stainless steel guides engineered to last for a minimum of one million activations. Simplifying most installations, the TL8012-S series has a rotatable head that adapts to the required actuator's entry position and offers a locking force of 2000N (450 lb).  For quick troubleshooting, the TL8012-S has an easily seen status indicator.</p><ul><li>NEMA 6 enclosure enables the TL8012-S to withstand water washdown cleaning.</li><li>Door and lock monitoring—the TL8012-S has a total of 5 contacts: 2 N/C safety + 1 N/O for door position monitoring plus 1 N/C + 1 N/O for lock monitoring.</li><li>Lid-mounted status light is on when solenoid is energized, indicating that solenoid has unlocked the guard door.</li><li>Rotatable head—the rotatable head of the TL8012-S provides 4 actuator entry positions to satisfy most installation requirements.</li><li>Optional key release—this option on power-to-unlock models allows emergency manual unlocking of the guard door.</li><li>Long life—the TL8012-S, with its variety of stainless steel actuators and stainless steel guide, is designed for a minimum of one million actuations.</li></ul>

TL8012-S Guard Locking Switch

D4BL

Robotic System Integrators have to meet several functional safety requirements for risk reduction strategies to keep operators safe during production and maintenance activities. The TL4019 series offers a guard lock interlock with a holding force of 1,200 N (270lb.). For compliance to ANSI/RIA R15.06, the TL4019 has a rear manual release that allows unlocking from inside the protective area.  For simple installation, the TL4019 series line-up has a variety of contact configurations, an optional slide bolt with an integral door handle, and a rotatable head.<ul>
<li>IP67 (NEMA 6) enclosure to withstand water washdown</li>
<li>4 contacts: 2 N/C safety + 1 contact for door position monitoring + 1 contact for lock monitoring</li>
<li>Rear manual release—allows unlocking of switch from inside of guarded area per ANSI/RIA R15.06</li>
<li>Narrow profile enables mounting to 2 in. square tubing or in applications with space restrictions</li>
</ul>
<h4>Overview</h4>
<p><img src="https://assets.omron.com/m/134b98e467261799/CE_UL-CUS_Dguv-jpg.jpg" alt="CE_UL-CUS_Dguv.jpg" title="CE_UL-CUS_Dguv.jpg"></p>
<ul>
<li>High locking force of 1,200 N (270 lb.) locks guard door shut until machine is safe to enter</li>
<li>Rotatable head—the rotatable head of the TL4019 provides 8 actuator entry positions to satisfy most installation requirements</li>
<li>Optional key release—this option on power-to-unlock models allows manual unlocking of the guard door</li>
<li>Optional slide bolt with integral door handle aids installation on sliding and swinging guard doors</li>
</ul>
<h4>Operation</h4>
<p><img src="https://assets.omron.com/m/0b535e554765b257/TL4019_operations-Updated-jpg.jpg" alt="TL4019_operations-Updated.jpg" title="TL4019_operations-Updated.jpg"></p>


TL4019 Guard Locking Switch

undefined<ul>
<li>IP67 (NEMA 6) enclosure to withstand water washdown</li>
<li>4 contacts: 2 N/C safety + 1 contact for door position monitoring + 1 contact for lock monitoring</li>
<li>Unlocking is possible with a back load on the door to satisfy the demands of high cycle time applications</li>
<li>Narrow profile enables mounting to 2 in. square tubing or in applications with space restrictions</li>
<li>Two LED (red/green) status indicators on the lid may be wired to suit the application</li>
</ul>
<h4>Overview</h4>
<p><img src="https://assets.omron.com/m/134b98e467261799/CE_UL-CUS_Dguv-jpg.jpg" alt="CE_UL-CUS_Dguv.jpg" title="CE_UL-CUS_Dguv.jpg"></p>
<ul>
<li>High locking force of 1,500 N (337 lb.) locks guard door shut until machine is safe to enter</li>
<li>Unlocking is possible with a back load on the door to satisfy the demands of high cycle time applications</li>
<li>Rotatable head—the rotatable head provides 8 actuator entry positions to satisfy most installation requirements</li>
<li>Optional key release—this option on power-to-unlock models allows manual unlocking of the guard door</li>
<li>Optional slide bolt with integral door handle aids installation on sliding and swinging guard doors</li>
</ul>
<h4>Operation</h4>
<p><img src="https://assets.omron.com/m/6b820b14344f60c5/TL4024_Operation-Updated-jpg.jpg" alt="TL4024_Operation-Updated.jpg" title="TL4024_Operation-Updated.jpg"></p>


TL4024 Safety Interlock Switches

Switches

Safety-Door Switches

Guard Locking Switches