Square D TeSys Deca LAD8N Auxi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$37.80
Square D TeSys Deca LAD8N Auxiliary Contact Block, Side Mount

Square D TeSys Deca LAD8N Auxiliary Contact Block, Side Mount

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Model: LAD8N11

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

$37.80
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Square D TeSys Deca Auxiliary Contact Block, 1 NO + 1 NC, Screw Clamp Terminals

The Square D TeSys Deca instantaneous auxiliary contact block is designed for use with LC.D contactors and CAD control relays equipped with AC coils only. It provides 1 NO + 1 NC contacts (NC mirror certified) rated up to 10A 690V AC, with connections made via screw clamp terminals. The clip-on side mounting design allows for quick, tool-friendly installation, and the block carries an IP20 degree of protection conforming to IEC 60529 for reliable performance in industrial and commercial control panels.

Key Features

  • Contact Configuration: 1 NO + 1 NC contacts (NC mirror certified) for dependable auxiliary switching signals.
  • Electrical Rating: Rated up to 10A 690V AC, with a rated operational voltage of 690 V AC (25...400 Hz), for robust control-circuit performance.
  • Screw Clamp Terminals: Connection by screw clamp terminals (1-4 mm² flexible, with or without cable end) for secure, vibration-resistant wiring.
  • Side Mounting: Clip-on side mount configuration for fast attachment to compatible contactors and control relays.
  • Degree of Protection: IP20 rated, conforming to IEC 60529, for safe handling in control panel environments.
  • Mechanical Durability: Rated for 30 Mcycles of mechanical operation, supporting long service life.
  • Range Compatibility: Compatible with TeSys Deca LC1D09-95 AC coil, LC1D115/150, CAD AC coil, TeSys F LC1F, and LC1D40A-80A AC coil contactors and control relays.

Certifications & Compliance

  • CB Scheme Certified
  • CSA Certified
  • UKCA Marked
  • EAC Certified
  • UL Listed
  • CCC Certified
  • Complies with EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, and IEC 60335-2-40 (Annex JJ)

Technical Specifications

  • Toxic Heavy Metal Free: Yes
  • Warranty: 18 months
  • Warranty Period: 18 months
  • Sustainable Packaging: Yes
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: No
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Serviceability: No
  • With Recycled Cardboard: Yes
  • Returnability: Yes
  • Operating Altitude: 9842.52 ft (3000 m)
  • Insulation Resistance: > 10 MOhm

Typical Applications

  • Contactor and Control Relay Auxiliary Circuits
  • Industrial Motor Control Panels
  • Commercial Electrical Control Systems
  • OEM and Panel Builder Equipment
  • Control Circuit Signaling and Interlocking Applications

Why Square D?

Square D TeSys Deca auxiliary contact blocks are built to internationally recognized standards, including EN/IEC 60947-5-1 and UL 60947-5-1, and hold multiple global certifications such as CSA, UKCA, EAC, and CCC. With NC mirror-certified contacts, screw clamp terminations, and 30 Mcycles of mechanical durability, this contact block delivers the code-compliant, long-life performance professionals expect for demanding control-panel and motor-control installations.

Manufacturer Resources

Product Specs

Series:
TeSys Deca
Voltage Rating:
690V
Department:
Electrical
Listing:
UL Listed
Amperage Rating:
10A
Product Type:
Auxiliary Contact Block
Connection Type:
Screw Clamp
Product Group:
Wiring Devices
Product Subgroup:
Motor Starters & Contactors

Square D LAD8N11 – Frequently Asked Questions

1) Will the Square D LAD8N auxiliary contact block fit my LC1D contactor?
The LAD8N clips onto the side of TeSys Deca LC1D09 through LC1D95 with AC coil, LC1D115 and LC1D150, CAD control relays with AC coil, LC1D40A through LC1D80A AC coil, and TeSys F LC1F contactors. It is for AC coil devices only, so if your contactor or relay has a DC coil this is the wrong block.
2) What is the difference between LAD8N11 and LAD8N20?
Only the contact configuration. LAD8N11 gives you 1 NO plus 1 NC (the NC is mirror certified for safety interlock use), and LAD8N20 gives you two normally open contacts. Order the 11 when you need a break contact for interlocking or fault signalling, the 20 when you only need two make contacts.
3) Is this contact block UL Listed for a code inspection?
It is UL Listed, and also CSA Certified, CB Scheme certified, UKCA marked, EAC and CCC certified. It complies with EN/IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No 60947-5-1, and IEC 60335-2-40 Annex JJ.
4) Does the NC contact on this block satisfy a mirror contact requirement for a safety circuit?
The LAD8N11 version carries an NC mirror certified contact, which is what a safety monitoring circuit needs to confirm the main poles have actually opened. The 2 NO version, LAD8N20, has no NC contact and cannot serve that purpose.
5) What is the equivalent side-mount auxiliary contact if my starter is an ABB, not a Square D?
The LAD8N only mounts to TeSys Deca LC1D, CAD and TeSys F LC1F devices with AC coils, so it will not fit an ABB starter. For ABB MS116 or MS132 manual motor protectors, the ABB HK1-11 side-mount auxiliary contact is the 1NO/1NC counterpart. For ABB 460 Line lighting contactors, the CR460XB2 two-pole auxiliary contact block is the accessory to use.
6) Can an ABB HK1-11 auxiliary contact be used in place of a Square D LAD8N11 on a TeSys Deca contactor?
No. The ABB HK1-11 is a side-mount auxiliary contact built for the ABB MS116/132 manual motor starter range, so it clips to that family's housing rather than a TeSys contactor. The Square D LAD8N block is a clip-on side mount designed for LC1D09-95 AC coil, LC1D115/150, CAD AC coil, TeSys F LC1F, and LC1D40A-80A AC coil contactors and control relays. Both provide a 1 NO + 1 NC arrangement, but the mounting interfaces are not interchangeable - match the block to the contactor brand and frame.
7) What wire size do the screw clamp terminals on this contact block take?
Connections are screw clamp terminals sized for 1 to 4 mm2 flexible conductor, with or without a cable end ferrule. That covers typical 18 to 12 AWG control wiring in a panel.
8) Can I use this auxiliary block in a 600V control circuit?
Yes. The block is rated 10A at up to 690V AC, with rated operational voltage of 690V AC across 25 to 400 Hz, so a 480V or 600V control circuit is within rating.
9) How is this side mount block installed, and does it need tools?
It clips onto the side of the contactor or relay body, no drilling or separate mounting hardware. Degree of protection is IP20 per IEC 60529, which means it is finger safe against solid objects but is intended for enclosed panel use, not open or wet locations.
10) What is the difference between the ABB CR460XB2 contact block and the Square D LAD8N?
The ABB CR460XB2 is a 2-pole auxiliary contact block from the ABB 460 Line, sold as a lighting contactor accessory, so it is intended for lighting contactor duty. The Square D LAD8N is an instantaneous auxiliary contact block for LC.D contactors and CAD control relays with AC coils, rated 10A at 690V with screw clamp terminals and IP20 protection. If the job is a lighting contactor, the ABB block is the family-matched part; if it is a TeSys Deca motor control panel, the LAD8N is.
11) I need two normally open auxiliary contacts instead of 1 NO + 1 NC - what should I order?
Order the LAD8N20, which carries a 2 NO contact configuration, rather than the LAD8N11 with its 1 NO + 1 NC arrangement. Both are the same side-mount screw clamp block for TeSys Deca contactors, so the mounting and wiring are unchanged. An ABB HK1-11 will not cover this need either - it is a 1NO/1NC contact for the ABB MS116/132 range.
12) Is this an instantaneous contact block or a time delay one?
Instantaneous. The LAD8N switches with the contactor, no adjustable on or off delay, so use it for straight signalling and interlocking rather than timed sequencing.
13) Will this hold up in a high cycle motor starter application?
Mechanical durability is rated at 30 million operating cycles, so it suits frequently switched motor control panels. Note serviceability is listed as No, meaning it is a replace rather than repair item.
14) Can I use this contact block at high elevation?
Operating altitude is rated to 3000 m (9,842.52 ft), which covers essentially any mountain-region facility without derating concerns for this block. Insulation resistance is greater than 10 MOhm.
15) Does this contact block meet RoHS and heavy metal restrictions for a green building spec?
It is within RoHS EU scope and declared compliant, mercury free and toxic heavy metal free. Packaging uses recycled cardboard and is classed as sustainable packaging, though it is not free of single use plastic. Recycled metal content at chromium level is 0 percent.
How fast can I get the Square D LAD8N11 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 LAD8N11 come with a warranty?
Absolutely. The Square D LAD8N11 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 LAD8N11?
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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