Contactors for Data Center PDU and UPS Systems: Selection Guide
AC-1 and AC-6a contactors for data center PDU and UPS systems: sizing, harmonic derating, coil selection, and endurance guidance for engineers. Shop at Stoklink.
- Part number
- LC3D32AB7
- Model no
- LC3D
- UL
- CSA
- CCC
Schneider Electric LC3D32AB7 TeSys Deca Star-Delta Starter 32 A 25 kW 400 V 24 V AC Coil Motor Starter
Schneider Electric TeSys Deca star-delta starter, 32 A AC-3, 25 kW at 400 V delta connection, 24 V AC control circuit.
Description
About the LC3D
About the LC3D
The Schneider Electric LC3D32AB7 is a pre-assembled TeSys Deca star-delta starter rated 32 A AC-3, delivering 25 kW at 400 V in delta connection from three LC1D contactors. It runs on a 24 V AC control circuit, includes a 1-30 s adjustable time-delay block and a mechanical interlock between the line and delta contactors, and mounts on a plate.
Certifications & Standards
- RINA
- GL
- GOST
- BV
- DNV
- CCC
- CSA
- LROS
- UL
- EN 60947-5-1
- EN 60947-4-1
- UL 508
- CSA C22.2 No 14
- IEC 60947-4-1
- IEC 60947-5-1
- IEC 60335-1
Selection Notes
This pre-wired assembly delivers 25 kW at 400 V in delta connection by sequencing three LC1D contactors through a 1-30 s adjustable time-delay block, which limits inrush current during the star-to-delta transition compared with switching a single contactor direct-on-line. The mechanical interlock keeps the line and delta contactors from closing together even if the control logic fails. Schneider ships this starter without a thermal overload relay — add one sized to the motor's full-load current before commissioning.
Specification
Full specification
Main 23
| Range | TeSys, TeSys Deca |
|---|---|
| Product name | TeSys Deca |
| Product or component type | Star delta starter |
| Device short name | LC3D |
| Contactor application | Motor control |
| Utilisation category | AC-3 |
| Device presentation | Pre-wired |
| Poles description | 3 x 3P |
| power pole contact composition | 3 x 3 NO |
| [Ue] rated operational voltage | Power circuit: <= 690 V AC 25...400 Hz |
| [Ie] rated operational current | 32 A (at <60 °C) at <= 440 V AC AC-3 for power circuit |
| Motor power kW | 15 kW at 220/230 V AC 50/60 Hz, 25 kW at 380/400 V AC 50/60 Hz, 30 kW at 415 V AC 50/60 Hz, 30 kW at 440 V AC 50/60 Hz |
| Control circuit type | AC at 50/60 Hz |
| [Uc] control circuit voltage | 24 V AC 50/60 Hz |
| Auxiliary contact composition | 1 NC for KM1 star contactor |
| [Uimp] rated impulse withstand voltage | 6 kV conforming to IEC 60947 |
| Overvoltage category | III |
| Electrical durability | 1.65 Mcycles 32 A AC-3 at Ue <= 440 V |
| safety cover | Protective cover |
| Interlocking type | Mechanical |
| Mounting support | Plate |
| Standards | UL 508, EN 60947-5-1, IEC 60947-4-1, CSA C22.2 No 14, IEC 60947-5-1, EN 60947-4-1, IEC 60335-1 |
| Product certifications | DNV, RINA, GOST, CCC, CSA, UL, LROS (Lloyds register of shipping), BV, GL |
Complementary 19
| Connections - terminals | Control circuit: screw clamp terminals 1 1…4 mm² - cable stiffness: flexible without cable end, Control circuit: screw clamp terminals 2 1…4 mm² - cable stiffness: flexible without cable end, Control circuit: screw clamp terminals 1 1…4 mm² - cable stiffness: flexible with cable end, Control circuit: screw clamp terminals 2 1…2.5 mm² - cable stiffness: flexible with cable end, Control circuit: screw clamp terminals 1 1…4 mm² - cable stiffness: solid without cable end, Control circuit: screw clamp terminals 2 1…4 mm² - cable stiffness: solid without cable end, Power circuit: screw clamp terminals 1 2.5…10 mm² - cable stiffness: flexible without cable end, Power circuit: screw clamp terminals 2 2.5…10 mm² - cable stiffness: flexible without cable end, Power circuit: screw clamp terminals 1 1…10 mm² - cable stiffness: flexible with cable end, Power circuit: screw clamp terminals 2 1.5…6 mm² - cable stiffness: flexible with cable end, Power circuit: screw clamp terminals 1 1.5…10 mm² - cable stiffness: solid without cable end, Power circuit: screw clamp terminals 2 2.5…10 mm² - cable stiffness: solid without cable end |
|---|---|
| Tightening torque | Control circuit: 1.7 N.m - on screw clamp terminals - with screwdriver flat Ø 6 mm, Control circuit: 1.7 N.m - on screw clamp terminals - with screwdriver Philips No 2, Power circuit: 2.5 N.m - on screw clamp terminals - with screwdriver flat Ø 6 mm, Power circuit: 2.5 N.m - on screw clamp terminals - with screwdriver Philips No 2, Power circuit: 1.7 N.m - on screw clamp terminals - with screwdriver pozidriv No 2, Control circuit: 1.7 N.m - on screw clamp terminals - with screwdriver pozidriv No 2 |
| Mechanical durability | 15 Mcycles |
| Maximum operating rate | 30 cyc/h 60 °C |
| Starting time | 30 s |
| Coil technology | Without built-in suppressor module |
| Control circuit voltage limits | Drop-out: 0.3...0.6 Uc at 50/60 Hz (at <60 °C), Operational: 0.8...1.1 Uc at 50 Hz (at <60 °C), Operational: 0.85...1.1 Uc at 60 Hz (at <60 °C) |
| Inrush power in VA | 70 VA 60 Hz cos phi 0.75 (at 20 °C), 70 VA 50 Hz cos phi 0.75 (at 20 °C) |
| Hold-in power consumption in VA | 7.5 VA 60 Hz cos phi 0.3 (at 20 °C), 7 VA 50 Hz cos phi 0.3 (at 20 °C) |
| Heat dissipation | 2…3 W at 50/60 Hz |
| Auxiliary contacts type | Mechanically linked conforming to IEC 60947-5-1 3 x 1 NO + 1 NC, Mirror contact conforming to IEC 60947-4-1 3 x 1 NC |
| Signalling circuit frequency | 25...400 Hz |
| Minimum switching current | 5 mA for signalling circuit |
| minimum switching voltage | 17 V for signalling circuit |
| Non-overlap time | 1.5 ms on de-energisation between NC and NO contact, 1.5 ms on energisation between NC and NO contact |
| Width | 166 mm |
| Height | 124 mm |
| Depth | 149 mm |
| Net weight | 2.03 kg |
Environment 11
| Insulation resistance | > 10 MOhm for signalling circuit |
|---|---|
| IP degree of protection | IP20 front face conforming to IEC 60529 |
| Climatic withstand | conforming to IACS E10, conforming to IEC 60947-1 Annex Q category D |
| Protective treatment | TH conforming to IEC 60068-2-30 |
| Pollution degree | 3 |
| Ambient air temperature for storage | -60…80 °C |
| Ambient air temperature for operation | -40…70 °C at Uc |
| Operating altitude | 3000 m without derating |
| Fire resistance | 850 °C conforming to IEC 60695-2-1 |
| Flame retardance | V1 conforming to UL 94 |
| Mechanical robustness | Vibrations contactor open: 2 Gn, 5...300 Hz, Vibrations contactor closed: 4 Gn, 5...300 Hz, Shocks contactor closed: 15 Gn for 11 ms, Shocks contactor open: 8 Gn for 11 ms |
Show all 77 specifications ↓ Show less ↑24 more values in Identification, Contractual warranty, Logistics.
Identification 7
| Part number | LC3D32AB7 |
|---|---|
| Type designation | LC3D |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 16
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 17.500 cm |
| Package 1 Width | 16.000 cm |
| Package 1 Length | 23.000 cm |
| Package 1 Weight | 1.742 kg |
| Unit Type of Package 2 | S04 |
| Number of Units in Package 2 | 6 |
| Package 2 Height | 30.000 cm |
| Package 2 Width | 40.000 cm |
| Package 2 Length | 60.000 cm |
| Package 2 Weight | 11.355 kg |
| Shipping weight | 2.03 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for LC3D32AB7
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- UL
- CSA
- CCC
- UL 508
- EN 60947-5-1
- IEC 60947-4-1
- CSA C22.2 No 14
- IEC 60947-5-1
- EN 60947-4-1
- IEC 60335-1
Quick answers
Questions about the LC3D
What is the rated current of LC3D?
The rated current of LC3D is 32 A.
Which supply voltage is LC3D rated for?
The rated operational voltage of LC3D is 24 V AC.
What motor power is LC3D rated for?
The rated motor power of LC3D is 25 kW.
What is the HS code of LC3D for customs?
The tariff (HS) code on file for LC3D is 85365080.
Where does LC3D ship from, and how fast?
LC3D ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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