Square D LC1D-50B7 TeSys Deca ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$603.80
Square D LC1D-50B7 TeSys Deca IEC Contactor, 3-Pole, 50A

Square D LC1D-50B7 TeSys Deca IEC Contactor, 3-Pole, 50A

(No reviews yet) Write a Review

Model: LC1D50B7

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

$603.80
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Square D LC1D-50B7 TeSys Deca IEC Contactor, 3-Pole, 50A

The Square D TeSys Deca contactor (device short name LC1D) is a 3-pole (3 NO), non-reversing IEC contactor built for motor control applications up to 50A at 690V AC-3/3e (22kW@400V), with a rated operational current of 50A (at <60°C) at ≤440V AC for the power circuit. This contactor is available with a 24V AC, 24V DC, or 120V AC 50/60Hz control circuit coil, and is rated for up to 100kA SCCR at 40HP, 480VAC, making it suitable for building motor starters across a wide range of commercial and industrial applications.

Key Features

  • Pole Configuration: 3-pole contactor with 3 NO contacts (Pole Contact Composition: 3 NO) for reliable motor circuit switching.
  • Control Circuit Coil Options: Available with 24V AC, 24V DC, or 120V AC 50/60Hz coils, allowing the same 3-pole/50A contactor platform to match a range of control-power schemes.
  • Rated Operational Current: Ie 50A (at <60°C) at ≤440V AC AC-3e for the power circuit, supporting motor loads up to 30kW at 440V AC 50Hz (AC-3).
  • Thermal Current: Ith conventional free-air thermal current of 80A (at 60°C) for the power circuit and 10A (at 60°C) for the control circuit.
  • Insulation Voltage: Ui rated at 600V UL/CSA for the power circuit and 690V per IEC 60947-1 for the control circuit.
  • Degree of Protection: IP2X per IEC 60529 and VDE 0106.
  • Mechanical Durability: B10d = 1,369,863 cycles at nominal load per EN/ISO 13849-1, with operating rates up to 3,600 cycles/hour at 60°C.
  • Terminal Connections: Screw clamp terminals for the control circuit (1-1.4 mm²) and screw terminals for the power circuit, tightened to 5 N.m.

Certifications & Compliance

  • UL Listed (UL 60947-4-1)
  • Conforms to IEC 60947-4-1, IEC 60947-5-1, and EN 60947-5-1
  • DNV, CCC, UKCA, BV, RINA, GOST, GL, and Lloyds Register of Shipping (LROS) certified
  • V1 Flame Retardance conforming to UL 94
  • RoHS Exemption Information: Yes

Technical Specifications

  • Amperage Rating: 50A
  • Poles Description: 3P
  • Warranty Period: 18 months
  • Toxic Heavy Metal Free: Yes
  • Mercury Free: Yes
  • Sustainable Packaging: Yes
  • Average Life Duration: 20 year(s)
  • ROHS Eur Status: Compliant

Typical Applications

  • Motor Starter Assemblies for 3-Phase Motors
  • Commercial and Industrial Motor Control Panels
  • Panelboard and Control Panel Wiring
  • OEM Machine Building and Control Panel Fabrication
  • Renovation and New Motor Control Installations

Why Square D?

Square D TeSys Deca contactors are engineered to IEC 60947-4-1 and UL 60947-4-1 standards, delivering code-compliant performance backed by an 18-month warranty and independent certifications including UL, DNV, and BV. With mercury-free, toxic-heavy-metal-free construction, sustainable recycled-content packaging, and a choice of 24V AC, 24V DC, or 120V AC coil options on the same 3-pole, 50A platform, this contactor is built for dependable, long-service motor control in demanding commercial and industrial environments.

Manufacturer Resources

Product Specs

Product Type:
Contactor
Series:
TeSys Deca
Voltage Rating:
120VAC
Amperage Rating:
50A
Configuration:
3-Pole
Listing:
UL Listed
Standards:
IEC 60947-4-1
Department:
Electrical
Product Group:
Motor Control & Automation
Product Subgroup:
Contactors & Relays

Square D LC1D50B7 – Frequently Asked Questions

1) What coil voltages does the Square D LC1D50 TeSys Deca contactor come in, and what is the part number for each?
Three coil options on the same 3-pole, 50A frame: 24V AC as LC1D50B7, 24V DC as LC1D50BD, and 120V AC 50/60Hz as LC1D50G7. The power pole rating does not change between them, so pick the coil that matches the control transformer or DC supply already in the panel.
2) What size motor will a 50A TeSys Deca LC1D contactor run?
It handles motor loads up to 22kW at 400V AC-3/3e and up to 30kW at 440V AC 50Hz (AC-3), with a rated operational current of 50A at under 60 degrees C up to 440V AC. On the UL side it is rated to 100kA SCCR at 40HP, 480VAC. Above that you need a larger frame.
3) Does the LC1D50 contactor come with an auxiliary contact?
No. The pole contact composition is 3 NO power poles only, so there is no built-in auxiliary. If your control scheme needs a seal-in or an interlock contact, you add an auxiliary contact block. By contrast, the ABB AF16 contactor we carry (AF-09301013) is supplied with a 1NO auxiliary contact built in, though it is a much smaller 9-16A AC-3 frame.
4) Is the Square D LC1D50 contactor UL Listed and IEC compliant for a spec'd control panel?
Yes. It is UL Listed to UL 60947-4-1 and conforms to IEC 60947-4-1, IEC 60947-5-1 and EN 60947-5-1. Marine and international approvals include DNV, BV, RINA, LROS, GL, CCC, UKCA and GOST, and the housing carries V1 flame retardance per UL 94. It is RoHS compliant for the European status.
5) Can I use an Eaton Freedom or Citation contactor kit instead of ordering a new LC1D-50B7?
Those are not substitutes for a complete contactor. The Eaton 6-44-2 is a Freedom series A1 contactor kit sold as a motor control renewal part, the Eaton 6364 is a Citation B1 three-pole contactor renewal kit, and the Eaton 932563 is a Freedom coil and contactor kit for a 220-240V AC, 65mm frame. Each is a renewal or repair kit that rebuilds an existing Eaton starter in place. The Square D LC1D-50B7 is a complete 3-pole, 50A TeSys Deca contactor that you mount and wire as a new device. Use the renewal kits only when the installed Eaton starter body is staying in the panel.
6) Is the ABB AF16 contactor an equivalent to the Square D LC1D-50B7?
No. The Square D LC1D-50B7 is a TeSys Deca 3-pole IEC contactor rated 50A, built for motor loads up to 22kW at 400V AC-3. The ABB AF-09301013 is an AF16 3-pole contactor rated 9-16A in AC-3 and includes a 1NO auxiliary contact. The two sit in different current bands, so the AF16 would only serve a much smaller motor; for a 50A motor circuit the LC1D-50B7 is the correct size. Note also that the LC1D-50B7 platform is offered with 24V AC, 24V DC, or 120V AC coils, so the control-power scheme is chosen at order time.
7) Is the LC1D50 contactor reversing, and can I use two of them for a reversing starter?
The LC1D50 is a non-reversing contactor. For forward/reverse duty you wire two of them with an electrical and mechanical interlock between them; a single unit will only switch the load in one phase sequence.
8) What wire size and torque do the terminals on the LC1D50 contactor take?
Power circuit uses screw terminals torqued to 5 N.m. The control circuit uses screw clamp terminals sized for 1 to 1.4 mm2 conductors. Thermal capacity is 80A free-air on the power circuit and 10A on the control circuit, both at 60 degrees C.
9) How many cycles will a TeSys Deca LC1D50 contactor take in high-duty cycling, like a chiller or compressor panel?
Mechanical durability is given as B10d of 1,369,863 cycles at nominal load per EN/ISO 13849-1, and it will accept operating rates up to 3,600 cycles per hour at 60 degrees C. Stated average life duration is 20 years.
10) Can the LC1D50 contactor be used on a 600V system?
No. Rated insulation voltage is 600V UL/CSA, but rated operational current of 50A is stated at up to 440V AC, with 690V AC-3/3e as the power circuit ceiling for the AC-3 rating. For UL work in North America it is applied on 480VAC-class motor circuits (100kA SCCR at 40HP, 480VAC). Do not treat the 600V insulation figure as an operating voltage rating.
11) Does the LC1D50 contactor need an enclosure, or is it protected on its own?
It needs one. Degree of protection is IP2X per IEC 60529 and VDE 0106, which is finger-safe against solid objects only, with no water or dust rating. Mount it inside a panelboard or control enclosure suited to the environment.
12) Does the Square D LC1D50 contactor include overload protection for the motor?
No. It is a contactor only, 3 NO poles for switching. A complete motor starter needs a separate overload relay plus short circuit protection ahead of it. The contactor itself is the switching element in that assembly.
13) What is the closest IEC contactor alternative to the LC1D-50B7 if I need a smaller frame for a light motor load?
For a smaller three-phase motor circuit, the Eaton AE16 series three-phase IEC contactor/starter is the comparable IEC-style device, while the ABB AF-09301013 covers the 9-16A AC-3 band with a 1NO auxiliary contact built in. The Square D LC1D-50B7 is the 50A, 3-pole TeSys Deca device and is sized for motor loads up to 22kW at 400V AC-3, so stepping to the AE16 or AF16 frame is a move down in current capacity, not a drop-in swap.
14) My control circuit is 240V AC. Does the LC1D-50B7 cover that, or do I need a different brand?
The Square D LC1D-50B7 platform is offered with 24V AC, 24V DC, or 120V AC 50/60Hz coils, ordered as LC1D50B7, LC1D50BD, and LC1D50G7 respectively. If your control power is 220-240V AC and you are maintaining an existing Eaton Freedom starter, the Eaton 932563 is a Freedom coil and contactor kit specified for 220-240V AC on a 65mm frame. For a new Square D installation, match the control transformer secondary to one of the three coil voltages above when you select the part number.
How fast can I get the Square D LC1D50B7 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 LC1D50B7 come with a warranty?
Absolutely. The Square D LC1D50B7 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 LC1D50B7?
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
Why buy the Square D LC1D50B7 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!