SchneiderContactors and Protection Relays

LC1F1857F7

Name: LC1F1857F7
Brand: Schneider
SKU: LC1F1857F7

The LC1F1857F7 TeSys F contactor is a high-performance solution for industrial applications, offering reliable operation and efficient control.

Product ModelLC1F1857F7

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureHigh-performance operation with 2400 cycles per hour.
2
FeatureReliable operation in temperatures up to 131°F (55°C).
3
FeatureFast closing and opening times for efficient control.
4
FeatureFlexible control circuit screw clamp terminals for easy installation.
5
FeatureDesigned for 3P (3 NO) AC3, 440V, and 275A coil with 110V AC control circuit.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Range

TeSys

Range of Product

TeSys F

Product or Component Type

Contactor

Device short name

LC1F

Contactor application

Induction furnace

Utilisation category

AC-3AC-1AC-4

[Ue] rated operational voltage

<= 460 V DC<= 690 V AC 50/60 Hz

[Uc] control circuit voltage

110 V AC 40...400 Hz

[Ie] rated operational current

275 A (at <104 °F (40 °C)) at <= 440 V AC-1185 A (at <131 °F (55 °C)) at <= 440 V AC-3

[Uimp] rated impulse withstand voltage

8 kV

[Ith] conventional free air thermal current

275 A (at 104 °F (40 °C))

Rated breaking capacity

1480 A conforming to IEC 60947-4-1

[Icw] rated short-time withstand current

1500 A 104 °F (40 °C) - 10 s920 A 104 °F (40 °C) - 30 s740 A 104 °F (40 °C) - 1 min500 A 104 °F (40 °C) - 3 min400 A 104 °F (40 °C) - 10 min

Associated fuse rating

200 A aM at <= 440 V315 A gG at <= 440 V

Average impedance

0.33 mOhm - Ith 275 A 50 Hz

[Ui] rated insulation voltage

1000 V IEC 60947-4-1 1500 V VDE 0110 group C

Power dissipation per pole

12 W AC-325 W AC-1

Overvoltage category

III

power pole contact composition

1 NO (early break) + 2 NO

Motor power kW

90 kW at 380...400 V AC 50/60 Hz (AC-3)100 kW at 415 V AC 50/60 Hz (AC-3)100 kW at 440 V AC 50/60 Hz (AC-3)110 kW at 500 V AC 50/60 Hz (AC-3)110 kW at 660...690 V AC 50/60 Hz (AC-3)55 kW at 220...230 V AC 50/60 Hz (AC-3)33 kW at 400 V AC 50/60 Hz (AC-4)

Control circuit voltage limits

Operational 0.85...1.1 Uc 40...400 Hz 131 °F (55 °C))Drop-out 0.35...0.55 Uc 40...400 Hz 131 °F (55 °C))

Mechanical durability

10 Mcycles

Inrush power in VA

1070 VA, 40...400 Hz 0.9 68 °F (20 °C))

Hold-in power consumption in VA

9.9 VA, 40...400 Hz 0.9 68 °F (20 °C))

Maximum operating rate

2400 cyc/h 131 °F (55 °C)

Operating time

20...35 ms closing7...15 ms opening

Connections - terminals

Control circuit screw clamp terminals 1 0.002...0.006 inÂ² (1...4 mmÂ²)flexible without cable endControl circuit screw clamp terminals 2 0.002...0.006 inÂ² (1...4 mmÂ²)flexible without cable endControl circuit screw clamp terminals 1 0.002...0.006 inÂ² (1...4 mmÂ²)flexible with cable endControl circuit screw clamp terminals 2 0.002...0.004 inÂ² (1...2.5 mmÂ²)flexible with cable endControl circuit screw clamp terminals 1 0.002...0.006 inÂ² (1...4 mmÂ²)solid without cable endControl circuit screw clamp terminals 2 0.002...0.006 inÂ² (1...4 mmÂ²)solid without cable endPower circuit bar 2 25 x 3 mmPower circuit lugs-ring terminals 1 0.2 inÂ² (150 mmÂ²)Power circuit connector 1 0.2 inÂ² (150 mmÂ²)Power circuit bolted connection

Tightening torque

Control circuit 10.6 lbf.in (1.2 N.m)Power circuit 159.3 lbf.in (18 N.m)

Mounting Support

Plate

Heat dissipation

8...9.8 W

Standards

IEC 60947-4-1IEC 60947-1EN 60947-1JIS C8201-4-1EN 60947-4-1

Product Certifications

RMRoSDNVRINAULBVLROS (Lloyds register of shipping)ABSCCCCB

compatibility code

LC1F

Control circuit type

AC 40...400 Hz

IP degree of protection

IP2X front face with shrouds IEC 60529IP2X front face with shrouds VDE 0106

Protective treatment

Ambient Air Temperature for Operation

23...131 °F (-5...55 °C)

Ambient Air Temperature for Storage

-76...176 °F (-60...80 °C)

Permissible ambient air temperature around the device

-40...158 °F (-40...70 °C)

Height

6.9 in (174 mm)

Width

6.6 in (168.5 mm)

Depth

7.1 in (181 mm)

Operating altitude

9842.52 ft (3000 m) without derating

Net Weight

10.25 lb(US) (4.65 kg)