LC1DT20FD | TeSys D contactor – 4P(4 NO) – AC-1 – <= 440 V 20 A - 110 V DC standard coil - Schneider Electric

Name: LC1DT20FD | TeSys D contactor - 4P(4 NO) - AC-1 - <= 440 V 20 A - 110 V DC standard coil - Schneider Electric - myelectric.in
Brand: Schneider Electric
SKU: LC1DT20FD
Price: 2785.50 INR
Availability: BackOrder

SKU: LC1DT20FD

Original price was: ₹6,190.00.Current price is: ₹2,785.50. Excl. GST

Dispatch By : 3 Weeks

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📋 Technical Specifications

Parameter	Value
Brand	Schneider Electric
Part Number / SKU	LC1DT20FD
Category	Contactor
Coil Voltage	110V DC
Max Contact Voltage	440V AC
Contact Configuration	4 NO (Normally Open)
Current Rating	20 A
Poles	4 Poles
Standard	IEC 60947-4-1 / IS 13947-4-1
Certifications	BIS certified, CE marked, RoHS compliant

⚡ Key Features

20 A AC-3 rated — suits up to a 11 kW squirrel-cage induction motor at 415V for direct-on-line (DOL) starting and running.
110V DC coil — connects directly to pushbutton station, PLC digital output, or timer relay; suitable for standard 50Hz Indian industrial control circuits.
4 Poles main contacts with silver-alloy (AgSnO₂) tips — rated for AC-3 duty (DOL motor starting/stopping); low contact resistance reduces heat at rated current.
Main contacts rated up to 440V AC — compatible with 415V AC three-phase Indian supply and 480V AC North American systems.
TeSys D series — world-standard contactor footprint; clip-on LA1D/LA4D auxiliary contact blocks and accessories attach without tools; compatible with TeSys LRD overload relays for direct-mount DOL starters.
Manufactured to IEC 60947-4-1 / IS 13947-4-1 — complies with the applicable Indian BIS and IEC international standards for this product category.
BIS certified, CE marked, RoHS compliant — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
Genuine authorised Schneider Electric product — sourced directly from the official distribution network with full manufacturer traceability and warranty.
GST invoice provided for India orders — valid for corporate procurement, government project orders, and public tender supply via myelectric.in.
Worldwide export available — UAE, Singapore, UK, USA, Sri Lanka & more. Contact +91 94814 00316 for bulk pricing and international shipping.

❓ Frequently Asked Questions

Q: Is the LC1DT20FD rated 20 A for AC-3 motor duty or AC-1 resistive duty?

A: The 20 A rating of this Schneider Electric contactor applies to AC-3 duty (squirrel cage motor starting and running). For AC-1 (resistive/non-inductive) loads, the current can be up to ~1.3× the AC-3 rating. AC-4 (plugging/reversing) requires significant de-rating — consult the Schneider Electric selection table.

Q: The LC1DT20FD has a coil voltage of 110V DC — what control supply is needed?

A: This Schneider Electric device requires a 110V DC control supply connected to the coil terminals (A1 and A2). For DC coils, observe polarity where marked. DC coils produce no inrush and are preferred for PLC output cards. Always fit a surge suppressor across the coil when switching with a PLC or solid-state relay.

Q: What circuit can the 4 NO (Normally Open) contacts of the LC1DT20FD switch at 440V AC?

A: The 4 NO (Normally Open) contacts on the LC1DT20FD are rated for switching at up to 440V AC. These auxiliary contacts are typically used for: (1) indication lamps and buzzers, (2) PLC input feedback to confirm device state, (3) interlocking with other contactors or relays in control circuits. Check the current rating of the auxiliary contact (typically 10A at 250V AC) — do not use for power load switching.

Q: What is the electrical and mechanical life of the LC1DT20FD?

A: Schneider Electric contactors are rated for millions of operations: typically 10–30 million mechanical operations and 1–3 million electrical operations at rated current and voltage (AC-3 duty). High-frequency switching applications (>10 operations/hour) require checking the specific thermal capacity of the contactor for continuous duty without overheating.

Q: Can the LC1DT20FD be used for reversing duty (forward/reverse motor control)?

A: Contactors used for reversing must be wired with two contactors interlocked so only one can energise at a time. The Schneider Electric series provides mechanical interlock kits that physically prevent both contactors from closing simultaneously — mandatory for reversing and brake applications to prevent phase-to-phase short circuits.