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
- LC1DMKM7
- Model no
- LC1DMK
- UKCA
- CB Scheme
Schneider Electric LC1DMKM7 TeSys Deca Capacitor Duty Contactor 3P 25 kvar 400 V 220 V AC Coil Contactor
Schneider Electric TeSys Deca capacitor-duty contactor, 25 kvar at 400 V, 220 V AC 50/60 Hz coil, 1NO+2NC contacts.
Description
About the LC1DMK
About the LC1DMK
The Schneider Electric LC1DMKM7 is a 3-pole TeSys Deca capacitor-duty contactor rated 25 kvar at 400 V (42 kvar at 690 V) for switching three-phase power-factor-correction capacitor banks. It runs on a 220 V AC 50/60 Hz coil, includes 1 NO + 2 NC instantaneous auxiliary contacts with front-mounted early-make poles and pre-wired damping resistors, and mounts on a 45 mm wide DIN rail or plate.
Certifications & Standards
- IECEE CB Scheme
- UKCA
- EN/IEC 60947-1
- EN/IEC 60947-4-1
- IEC 60335-1
Selection Notes
Pre-wired damping resistors on the early-make poles limit inrush current when switching capacitor banks — a feature a plain LC1D motor contactor lacks, so it should not be substituted for power-factor-correction duty. The 240 cyc/h operating-rate ceiling is set by the damping-resistor thermal limit rather than contact life, which bounds how often an automatic PFC regulator can step this stage. Choose a higher-kvar variant in the same family if the capacitor bank step exceeds 25 kvar at 400 V.
Specification
Full specification
Main 22
| Range | TeSys TeSys Deca |
|---|---|
| Product name | TeSys LC1D.K TeSys Deca |
| Product or Component Type | Capacitor duty contactor |
| Device short name | LC1DMK |
| Device Application | Control |
| Contactor application | Power factor correction |
| Utilisation category | AC-6b |
| Poles description | 3P |
| power pole contact composition | 3 NO |
| Device location in system | Line interruption Inside delta interruption |
| [Ue] rated operational voltage | Power circuit 690 V AC 50/60 Hz |
| Reactive power rating | 14 kvar 230 V AC 50 Hz 140 °F (60 °C) 25 kvar 400 V AC 50 Hz 140 °F (60 °C) 27 kvar 440 V AC 50 Hz 140 °F (60 °C) 42 kvar 690 V AC 50 Hz 140 °F (60 °C) |
| Control circuit type | AC 50/60 Hz |
| [Uc] control circuit voltage | 220 V AC 50/60 Hz |
| Auxiliary contact composition | 1 NO + 2 NC instantaneous |
| Electrical durability | 300000 cycles 400 V 200000 cycles 690 V |
| Mounting Support | DIN rail Plate |
| Standards | EN/IEC 60947-1 EN/IEC 60947-4-1 IEC 60335-1 |
| Product Certifications | IECEE CB Scheme UKCA |
| Connections - terminals | Control circuit: screw clamp terminals 1 0.002...0.006 in2 (1...4 mm2) - cable stiffness: solid Control circuit: screw clamp terminals 2 0.002...0.006 in2 (1...4 mm2) - cable stiffness: solid Control circuit: screw clamp terminals 1 0.002...0.006 in2 (1...4 mm2) - cable stiffness: flexible without cable end Control circuit: screw clamp terminals 2 0.002...0.006 in2 (1...4 mm2) - cable stiffness: flexible without cable end Control circuit: screw clamp terminals 1 0.002...0.006 in2 (1...4 mm2) - cable stiffness: flexible with cable end Control circuit: screw clamp terminals 2 0.002...0.004 in2 (1...2.5 mm2) - cable stiffness: flexible with cable end Power circuit: screw clamp terminals 1 0.004...0.02 in2 (2.5...16 mm2) - cable stiffness: solid Power circuit: screw clamp terminals 2 0.004...0.009 in2 (2.5...6 mm2) - cable stiffness: solid Power circuit: screw clamp terminals 1 0.002...0.02 in2 (1.5...10 mm2) - cable stiffness: flexible without cable end Power circuit: screw clamp terminals 2 0.002...0.009 in2 (1.5...6 mm2) - cable stiffness: flexible without cable end Power circuit: screw clamp terminals 1 0.002...0.02 in2 (1...10 mm2) - cable stiffness: flexible with cable end Power circuit: screw clamp terminals 2 0.002...0.006 in2 (1...4 mm2) - cable stiffness: flexible with cable end |
| Tightening torque | Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 22.1 lbf.in (2.5 N.m) screw clamp terminals |
| Maximum operating rate | 240 cyc/h |
Complementary 1
| Auxiliary contacts type | Mechanically linked 1 NO + 2 NC IEC 60947-5-1 |
|---|
Environment 8
| IP degree of protection | IP20 front face IEC 60529 |
|---|---|
| Ambient Air Temperature for Operation | 23...140 °F (-5...60 °C) |
| Ambient Air Temperature for Storage | -76...176 °F (-60...80 °C) |
| Operating altitude | 0...9842.52 ft (0...3000 m) |
| Height | 4.9 in (125 mm) |
| Width | 1.8 in (45 mm) |
| Depth | 5 in (127 mm) |
| Net Weight | 1.39 lb(US) (0.63 kg) |
Show all 45 specifications ↓ Show less ↑14 more values in Identification, Contractual warranty, Logistics.
Identification 8
| Part number | LC1DMKM7 |
|---|---|
| Type designation | LC1DMK |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606480401848 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | FR |
|---|---|
| Shipping weight | 0.63 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 29 Oct 2026
Documents
Documents for LC1DMKM7
No documents are on file for this part yet.
Ask us for the datasheet
Certifications
Certifications and standards
- UKCA
- CB Scheme
Quick answers
Questions about the LC1DMK
Which supply voltage is LC1DMK rated for?
The rated operational voltage of LC1DMK is 220 V AC.
What is the HS code of LC1DMK for customs?
The tariff (HS) code on file for LC1DMK is 853650.
What is the EAN of LC1DMK?
The EAN (GTIN) of LC1DMK is 3606480401848.
Where does LC1DMK ship from, and how fast?
LC1DMK ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Reviews
Customer reviews
Series
Schneider Electric Schneider TeSys Deca
- Brand
- Schneider Electric
- Series
- Schneider TeSys Deca
