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Transparent IEC magnetic contactor with protective cover and screw terminals

Schneider Electric

Schneider Electric SQUARE D LC1D25T7 IEC Magnetic Contactor 480V AC 3P Non-Reversing 1NC/1NO

SKU CH-PTBY-7XY2F

A three-pole IEC magnetic contactor for 480V AC motor and resistive loads with 1NO/1NC auxiliary contacts

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Non-reversing three-pole design simplifies motor control circuits
  • 480 V AC coil voltage matches common industrial supply
  • Auxiliary 1NO/1NC contacts provide status feedback
  • Tested to 690 V insulation per IEC 60947 standards
  • Mechanical durability rated at 15 Mcycles for long service

IEC Magnetic Contactor 480V AC

The Schneider Electric SQUARE D LC1D25T7 is a non-reversing, three-pole contactor built for motor control and resistive load switching. It operates on a 480V AC coil and provides one normally open and one normally closed auxiliary contact. The unit includes a protective cover and mounts via screw clamp terminals for both control and power circuits. It is suited for industrial automation panels requiring reliable switching at this voltage level.

Practical limits of the AC coil and power ratings

The contactor is rated for a maximum operating temperature of 140 degrees F and an insulation voltage of 690V for both power and signalling circuits. Electrical durability reaches 1.4 million cycles at 40A AC-1 below 440V and 1.65 million cycles at 25A AC-3e below 440V. Mechanical durability is tested to approximately 15 million cycles. Average impedance is 2 mOhm at 40A 50Hz. These figures define the thermal and electrical boundaries for continuous use.

Replaces older IEC contactors

This model upgrades installations where mechanical life below 15 million cycles or electrical life below 1.4 million cycles at 40A has caused premature replacement. The jump is worth it when the application demands the tested damp-heat resilience per IEC 60947-1 Annex Q category D and IACS E10 exposure standards. It is not for systems requiring reversing operation or coil voltages other than 480V AC.

Highlights

  • Non-reversing three-pole design simplifies motor control circuits
  • 480 V AC coil voltage matches common industrial supply
  • Auxiliary 1NO/1NC contacts provide status feedback
  • Tested to 690 V insulation per IEC 60947 standards
  • Mechanical durability rated at 15 Mcycles for long service

Specifications

BrandSQUARE D
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Should I choose the 25 A AC-3e rating or the 40 A AC-1 rating for my load?

Use the 25 A AC-3e rating for motor loads and the 40 A AC-1 rating for resistive loads, both below 440 V.

What does the 480 V AC coil voltage mean when the contactor is installed in a panel?

The coil requires a 480 V AC control supply to energise the contactor and close the three main power poles.

What does the 690 V insulation voltage cap in practice?

It limits the maximum voltage that can be applied to both power and signalling circuits under IEC 60947-1.

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