Square D TeSys Deca LADN Auxil...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$37.80
Square D TeSys Deca LADN Auxiliary Contact Block, Top Mount, Screw Clamp Terminal

Square D TeSys Deca LADN Auxiliary Contact Block, Top Mount, Screw Clamp Terminal

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Model: LADN20

In Stock (leaves warehouse same day if ordered before 3pm ET)

$37.80
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Square D TeSys Deca LADN Auxiliary Contact Block, 2 NO, Screw Clamp Terminals

The Square D TeSys Deca LADN auxiliary contact block adds 2 NO instantaneous contacts to TeSys D LC1D and TeSys F LC1F contactors and CAD control relays, covering LC1D09 to LC1D150. Rated Ui 690V AC (IEC 60947-5-1) / 600V (UL, CSA), Ith 10A at 60°C, it connects via screw clamp terminals and clips on for a secure, top-mounted fit and reliable, durable service.

Key Features

  • Contact Configuration: 2 NO instantaneous auxiliary contacts for monitoring or signaling contactor status.
  • Screw Clamp Terminals: Accepts 1 to 1.4 mm² flexible wire with cable end, tightening torque 1.7 N.m (Pozidriv No. 2, Phillips No. 2, or 6 mm flat blade).
  • Top Mount, Clip-On Design: Clip-on front mounting for a secure fit and long-term reliability.
  • Range Compatibility: Fits TeSys D LC1D, TeSys F LC1F contactors, TeSys D/Deca CAD control relays, and TeSys F CR1F, covering LC1D09 to LC1D150.
  • Rated Insulation Voltage: Ui 690V AC per IEC 60947-5-1; 600V per UL and CSA.
  • Rated Operational Current (Ie): 6A at 120V AC-15; 1.04A at 690V AC-15; 0.55A at 125V DC-13; 0.1A at 600V DC-13.
  • Conventional Thermal Current: Ith 10A at 60°C free air.
  • Degree of Protection: IP20 per IEC 60529.

Certifications & Compliance

  • UL Listed
  • CSA Certified
  • CB Scheme
  • CCC
  • EAC
  • UKCA
  • Complies with UL 60947-5-1, IEC 60947-5-1, CSA C22.2 No 60947-5-1, and EN 50012

Technical Specifications

  • Toxic Heavy Metal Free: Yes
  • Warranty Period: 18 months
  • Sustainable Packaging: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Serviceability: No
  • With Recycled Cardboard: Yes
  • China ROHS In Scope: No
  • Return Indicator: Y
  • Tier: 1
  • Reach Free Shvc: Yes
  • Legacy WEEE Scope: In
  • Packaging Made With Recycled Cardboard: Yes
  • Without Single Use Plastic: Yes
  • ROHS Exemption Information: Yes
  • WEEE Product Category: 5
  • Reach Full Compliance Status Id: NOT_CONTAINING_SVHC
  • Warranty: 18 months
  • Mercury Free: Yes
  • ROHS Eur Full Compliance Status Id: COMPLIANT
  • Packaging Without Single Use Plastic: Yes
  • Tier Id: 1
  • ROHS Eur In Scope: Yes
  • Color: dark grey

Typical Applications

  • Contactor and Control Relay Auxiliary Signaling
  • Industrial Motor Control Panels
  • Commercial Electrical Control Systems
  • Panel Building and OEM Control Equipment
  • Renovation and New Installation of TeSys D/F Control Circuits

Why Square D?

Square D TeSys Deca auxiliary contact blocks are engineered to IEC 60947-5-1, UL 60947-5-1, and CSA C22.2 No 60947-5-1, with IP20 protection and insulation resistance greater than 10 MOhm. Backed by an 18-month warranty and compatible across the TeSys D and TeSys F contactor families, they deliver the code-compliant reliability professionals expect.

Manufacturer Resources

Product Specs

Series:
TeSys Deca
Voltage Rating:
690V
Department:
Electrical
Product Type:
Auxiliary Contact
Connection Type:
Screw Clamp
Product Color:
Dark Grey
Product Group:
Motor Control & Automation
Product Subgroup:
Contactors & Relays

Square D LADN20 – Frequently Asked Questions

1) Which LADN models can I order and how do I pick the contact configuration?
Four models are offered: LADN11, LADN20, LADN22 and LADN40. The contact configurations across them are 1 NO + 1 NC and 2 NO, so pick based on whether your control circuit needs a normally closed contact for interlocking or only normally open contacts for run signaling. All four use the same screw clamp terminals and the same clip-on top mounting.
2) Can I switch a 120V AC control circuit or a DC coil circuit through these contacts?
Yes on both. Rated operational current is 6 A at 120 V in AC-15 duty and 1.04 A at 690 V AC-15; on DC it is 0.55 A at 125 V DC-13 and 0.1 A at 600 V DC-13. Conventional thermal current is 10 A at 60 C in free air. Note the steep DC derating: a 125 V DC coil or solenoid draw above half an amp needs an interposing relay.
3) Is the Square D LADN contact block UL Listed for a control panel build?
It is UL Listed and CSA Certified, and complies with UL 60947-5-1, IEC 60947-5-1, CSA C22.2 No 60947-5-1 and EN 50012. It also carries CB Scheme, CCC, EAC and UKCA marks. Rated insulation voltage is 690 V AC per IEC 60947-5-1 and 600 V per UL and CSA, with IP20 protection per IEC 60529.
4) Is an ABB CR305X auxiliary contact a substitute for a Square D LADN contact block?
No. The ABB CR305X auxiliary contact is built for ABB CR305X series contactors and relays, while the Square D TeSys Deca LADN block clips on to TeSys D LC1D, TeSys F LC1F, and CAD control relays covering LC1D09 through LC1D150. They are both front-mounted auxiliary contact blocks, but the mounting interface is specific to each manufacturer's contactor body, so the CR305X block will not seat on a TeSys D contactor. Choose the LADN for TeSys D or F, and the CR305X block only when the contactor itself is an ABB CR305X.
5) What is the closest equivalent to a Square D LADN20 auxiliary contact block if the panel uses Eaton contactors instead of TeSys D?
The Square D TeSys Deca LADN20 adds 2 NO instantaneous contacts and clips onto TeSys D LC1D and TeSys F LC1F contactors and CAD control relays, so it only fits that family. For an Eaton-based panel, the Eaton auxiliary contact kit C320DPG20 is also a 2NO block rated 10A at 600V, which matches the LADN20's 2 NO configuration and the LADN family's 10A thermal current and 600V UL/CSA insulation rating. Eaton's C320KG-SD is a top-mount auxiliary contact for the Freedom NEMA line, the same top-mounted approach the LADN uses, if the contactors are Freedom NEMA devices rather than IEC.
6) I need an auxiliary contact for a manual motor protector, not a contactor. Will a Square D LADN work?
No. The Square D TeSys Deca LADN block is a top-mounted auxiliary contact for contactors and control relays, specifically TeSys D LC1D, TeSys F LC1F, and CAD/CR1F control relays. For a manual motor protector, the Eaton XTPAXSA auxiliary contact is made for XT manual motor protectors, and the ABB HK1-11 is a side-mount 1NO/1NC auxiliary contact for MS116 and MS132 manual motor starters. Match the block to the device family it mounts on.
7) Do I need a top-mount or a side-mount auxiliary contact?
The LADN is a front, top-mount block, so it takes up face depth on the contactor rather than width in the panel. If your contactors are tight side to side but shallow, that is the right choice. If face depth is the constraint and you are on a different platform, a side-mount style unit such as the ABB HK1-11 for MS116/132 starters mounts on the flank instead. Side-mount units are not interchangeable with the LADN, which is keyed to the TeSys D and F ranges.
8) Is there an equivalent 2 NO auxiliary contact kit if I am not on TeSys contactors?
For NEMA-style Eaton gear, the Eaton C320DPG20 is a 2 NO auxiliary contact kit rated 10 A at 600 V, and the Eaton C320KG-SD is a Freedom Series NEMA top-mount auxiliary contact. Neither mounts on a TeSys D or F contactor, and the LADN will not mount on Eaton gear. Match the block to the contactor family you already have in the panel.
9) Will this auxiliary block work on a disconnect switch or a manual motor protector?
No. The LADN is built for TeSys D and TeSys F contactors and CAD/CR1F control relays. For an auxiliary contact on an ABB OT/OS disconnect, the ABB OA1G10 1-NO switch is the correct type, and for a manual motor protector the Eaton XTPAXSA auxiliary contact is the matching accessory.
10) Can I use a Square D LADN auxiliary contact to get status feedback from a disconnect switch or a lighting contactor?
No. The Square D TeSys Deca LADN block is wired to signal the state of a TeSys D or TeSys F contactor or CAD control relay that it clips onto. For a rotary disconnect, the ABB OA1G10 is a 1-NO auxiliary contact switch intended for OT and OS disconnects. For a lighting contactor, the ABB CR460XB2 is a 2-pole auxiliary contact block for the 460 Line lighting contactor. Each of those mounts to its own device and is not interchangeable with the LADN.
11) What should I use instead of a Square D LADN if I need to add contacts to a NEMA machine tool relay?
The Square D TeSys Deca LADN block is an IEC-style clip-on auxiliary contact for TeSys D LC1D and TeSys F LC1F contactors and CAD control relays. For a NEMA machine tool relay, the Eaton ARA20 is a four-pole top deck adder with a 2NO contact configuration for the AR/ARD machine tool relay line, which gives the same 2 NO arrangement as the Square D LADN20 but on an AR/ARD relay body.
12) If I need one normally open and one normally closed contact rather than two NO, what are my options?
Within the Square D TeSys Deca LADN family, the LADN11 and LADN22 are supplied in a 1 NO plus 1 NC configuration, mounting the same clip-on way on TeSys D and TeSys F contactors with screw clamp terminals. If the device is an ABB MS116 or MS132 manual motor starter instead of a contactor, the ABB HK1-11 is a 1NO/1NC auxiliary contact that side-mounts on that starter.
13) Will the LADN block match the look of the TeSys contactors already in my panel?
It is dark grey, the standard TeSys Deca finish, so added blocks will not stand out against existing LC1D contactors on the same DIN rail. It is also toxic heavy metal free and mercury free, which matters for facilities with restricted-substance purchasing rules.
How fast can I get the Square D LADN20 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D LADN20 come with a warranty?
Absolutely. The Square D LADN20 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D LADN20?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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