The Schneider LC1DT25M7 is a TeSys D series contactor designed for general-purpose electrical switching applications. It is a four-pole (4P) contactor, featuring four normally open (4 NO) contacts and is optimized for AC-1 applications.
2. Technical Specifications
Series: TeSys D
Product Type: Contactor
Number of Poles: 4P (Four Normally Open – 4 NO)
Rated Operational Voltage: ≤ 440V AC
Rated Current (AC-1): 25A
Coil Voltage: 220V AC, 50/60 Hz
Electrical Durability: High endurance for industrial applications
Mounting Type: DIN rail or panel mounting
3. Key Features
Reliable Performance: Designed for high electrical endurance and long operational life.
Compact Design: Space-saving construction for easy integration into control panels.
Versatile Application: Suitable for AC-1 applications, including heating, lighting, and non-inductive loads.
Easy Installation: Quick connection terminals and simple mounting options.
Energy-Efficient Coil: Reduces power consumption while maintaining effective operation.
4. Applications
The LC1DT25M7 contactor is widely used in various electrical systems, including:
Heating and ventilation systems
Lighting circuits
Industrial automation and motor control
Power distribution panels
5. Compliance and Standards
IEC 60947-4-1 (Low-voltage switchgear and controlgear – Contactors and motor starters)
RoHS Compliance (Environmentally friendly and free from hazardous substances)
CE Certified (Meets European safety and performance standards)
6. Conclusion
The Schneider LC1DT25M7 is a high-performance 4P contactor designed for AC-1 applications up to 25A. Its reliable construction, ease of installation, and compliance with international standards make it an excellent choice for industrial and commercial electrical control systems.
Power circuit: <= 690 V AC 25…400 Hz Power circuit: <= 300 V DC
[Ie] rated operational current
25 A (at <60 °C) at <= 440 V AC AC-1 for power circuit
[Uc] control circuit voltage
220 V AC 50/60 Hz
Complementary
Compatibility code
LC1D
Pole contact composition
4 NO
Protective cover
With
[Ith] conventional free air thermal current
10 A (at 60 °C) for signalling circuit 25 A (at 60 °C) for power circuit
Irms rated making capacity
140 A AC for signalling circuit conforming to IEC 60947-5-1 250 A DC for signalling circuit conforming to IEC 60947-5-1 250 A at 440 V for power circuit conforming to IEC 60947
Rated breaking capacity
250 A at 440 V for power circuit conforming to IEC 60947
[Icw] rated short-time withstand current
30 A 40 °C – 10 min for power circuit 61 A 40 °C – 1 min for power circuit 105 A 40 °C – 10 s for power circuit 210 A 40 °C – 1 s for power circuit 100 A – 1 s for signalling circuit 120 A – 500 ms for signalling circuit 140 A – 100 ms for signalling circuit
Associated fuse rating
10 A gG for signalling circuit conforming to IEC 60947-5-1 40 A gG at <= 690 V coordination type 1 for power circuit 25 A gG at <= 690 V coordination type 2 for power circuit
Average impedance
2.5 mOhm – Ith 25 A 50 Hz for power circuit
Power dissipation per pole
1.56 W AC-1
[Ui] rated insulation voltage
Power circuit: 600 V CSA certified Power circuit: 600 V UL certified Signalling circuit: 690 V conforming to IEC 60947-1 Signalling circuit: 600 V CSA certified Signalling circuit: 600 V UL certified Power circuit: 690 V conforming to IEC 60947-4-1
Overvoltage category
III
Pollution degree
3
[Uimp] rated impulse withstand voltage
6 kV conforming to IEC 60947
Safety reliability level
B10d = 1369863 cycles contactor with nominal load conforming to EN/ISO 13849-1 B10d = 20000000 cycles contactor with mechanical load conforming to EN/ISO 13849-1
Mechanical durability
15 Mcycles
Electrical durability
0.8 Mcycles 25 A AC-1 at Ue <= 440 V
Control circuit type
AC at 50/60 Hz
Coil technology
Without built-in suppressor module
Control circuit voltage limits
0.3…0.6 Uc (-40…70 °C):drop-out AC 50/60 Hz 0.8…1.1 Uc (-40…60 °C):operational AC 50 Hz 0.85…1.1 Uc (-40…60 °C):operational AC 60 Hz 1…1.1 Uc (60…70 °C):operational AC 50/60 Hz
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
Operating time
4…19 ms opening 12…22 ms closing
Maximum operating rate
3600 cyc/h 60 °C
Maximum operating rate
3600 cyc/h at 60 °C
Connections – terminals
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: 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 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 1…4 mm² – cable stiffness: flexible without cable end Power circuit: screw clamp terminals 2 1…4 mm² – cable stiffness: flexible without cable end Power circuit: screw clamp terminals 1 1…4 mm² – cable stiffness: flexible with cable end Power circuit: screw clamp terminals 2 1…2.5 mm² – cable stiffness: flexible with cable end Power circuit: screw clamp terminals 1 1…4 mm² – cable stiffness: solid without cable end Power circuit: screw clamp terminals 2 1…4 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: 1.7 N.m – on screw clamp terminals – with screwdriver flat Ø 6 mm Power circuit: 1.7 N.m – on screw clamp terminals – with screwdriver Philips No 2 Control circuit: 1.7 N.m – on screw clamp terminals – with screwdriver pozidriv No 2 Power circuit: 1.7 N.m – on screw clamp terminals – with screwdriver pozidriv No 2
Auxiliary contact composition
1 NO + 1 NC
Auxiliary contacts type
type mechanically linked 1 NO + 1 NC conforming to IEC 60947-5-1 type mirror contact 1 NC conforming to IEC 60947-4-1
Signalling circuit frequency
25…400 Hz
Minimum switching voltage
17 V for signalling circuit
Minimum switching current
5 mA for signalling circuit
Insulation resistance
> 10 MOhm 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
Mounting support
Plate Rail
Environment
Standards
CSA C22.2 No 14 EN 60947-4-1 EN 60947-5-1 IEC 60947-4-1 IEC 60947-5-1 UL 508 IEC 60335-1
Product certifications
DNV GL CCC LROS (Lloyds register of shipping) RINA BV GOST UL CSA CB
IP degree of protection
IP20 front face conforming to IEC 60529
Protective treatment
TH conforming to IEC 60068-2-30
Climatic withstand
conforming to IACS E10 exposure to damp heat conforming to IEC 60947-1 Annex Q category D exposure to damp heat
Permissible ambient air temperature around the device
-40…60 °C 60…70 °C with derating
Operating altitude
0…3000 m
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 (10 Gn for 11 ms)
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