Schneider LC1F1250MD Contactor

Definition of each part of LC1F1250MD:

Segment	Description
LC	Product category code, stands for Schneider Contactor product line
1	Standard single contactor (2 = reversing contactor)
F	Series code, stands for TeSys F Series (heavy-duty industrial contactor)
1250	Rated current specification: 1250A (actual 1260A under AC-1 @ 440V)
M	Coil voltage code: 220V (AC or DC distinguished by the following letter)
D	Coil type code: DC coil (M7 = AC coil; MD = DC coil)

Core Difference:

LC1F1250MD is fitted with 220VDC coil, while LC1F1250M7 is 220VAC coil. Both share identical main circuit parameters; only the control circuit power supply type differs.

Core Technical Specifications

Category	Parameters
Basic Characteristics	• Product Series: TeSys F heavy-duty industrial contactor
	• Poles: 3P (3 poles)
	• Main Contacts: 3NO (3 Normally Open)
	• Utilization Category: AC-1 (non-inductive / slightly inductive loads such as resistance furnaces)
	• Mounting: Standard 35mm DIN rail / bolt mounting
Main Circuit Ratings	• Rated Operational Voltage (Ue): ≤690V AC (50/60Hz) / ≤460V DC
	• Rated Insulation Voltage (Ui): 1000V AC
	• Rated Operational Current (Ie): 1260A (AC-1, 440V, 40°C)
	• Conventional Thermal Current (Ith): 1260A
	• Short-time Withstand Current (Icw): 25kA / 1s @ 400V
	• Contact Resistance: ≤0.12mΩ
Control Circuit Ratings	• Coil Type: DC coil
	• Rated Coil Voltage (Uc): 220VDC (compatible with 230VDC in practice)
	• Coil Power Consumption: Pull-in 140W, Holding 24W
	• Pull-in Time: ≤80ms
	• Drop-out Time: ≤50ms
	• Control Terminals: Screw clamp type
Mechanical & Environmental	• Mechanical Life: 1,000,000 operations
	• Electrical Life (AC-1): 100,000 operations
	• Max Operating Frequency: 300 cycles/hour
	• Operating Temperature: -5~+40°C (derating required +40~+60°C)
	• Storage Temperature: -25~+60°C
	• Protection Class: IP20 (after installation)
	• Dimensions (W×H×D): 309×280×181mm
	• Weight: Approx. 18kg
Certifications & Standards	• Compliance: IEC 60947-4-1, EN 60947-4-1, GB 14048.4
	• Approvals: CE, UL, CSA, CCC, UKCA
	• Eco Certification: Green Premium (RoHS / REACh compliant)

Accessory List

3.1 Standard Accessories

Contactor main unit LC1F1250MD ×1

Mounting fasteners (DIN rail clip / bolts) ×1

Operation Manual (electronic version) ×1

Coil surge suppressor (optional, separate order required)

3.2 Optional Accessories (Sold Separately)

Accessory Type	Model Example	Purpose
Auxiliary Contact Block	LAD9F01 / LAD9F10	Add 1NO / 1NC auxiliary contacts for control circuit expansion
Mechanical Interlock Block	LA9FF976	For reversing circuit (forward/reverse), prevents simultaneous closing of two contactors
Terminal Protection Cover	LAD9V6	Safety protection for main circuit terminals, electric shock prevention
Power Connection Busbar	LAD9B1250	High-current main circuit wiring, simplifies installation
Surge Suppressor	LAD9R220	Protect coil, suppress reverse EMF when DC coil is de-energized
Auxiliary Contact Base	LAD9F	Mount multiple auxiliary modules; expandable up to 6 auxiliary contacts maximum

Competitor & Cross-Brand Equivalent

Brand	Model	Rated Current	Coil Voltage	Poles / Contacts	Price Level	Main Advantages
Schneider	LC1F1250MD	1250A	220VDC	3P / 3NO	High	Heavy-duty design, drawer-type coil, easy maintenance
Schneider Alternative	LC1G1250MD	1250A	220VDC	3P / 3NO	Mid-High	TeSys Giga series, upgraded replacement for LC1F
Siemens	3TF5544-0XM0	1250A	220VDC	3P / 3NO	High	Full series compatibility, seamless S7 PLC connection
ABB	A1450-30-11	1250A	220VDC	3P / 3NO	High	Modular design, flexible auxiliary contact expansion
Mitsubishi	S-N1250	1250A	220VDC	3P / 3NO	Mid-High	Japanese quality, cost-performance
Eaton	DILM1250(220VDC)	1250A	220VDC	3P / 3NO	Mid	Compact structure, saves cabinet space

Selection Guidelines & Replacement Solutions

5.1 Core Selection Rules

Load Type: AC-1 (resistance furnace, heater) → suitable for LC1F1250MD; AC-3 (motor) → operate with derating or select dedicated AC-3 contactor

Control Supply: 220VDC → choose MD suffix; 220VAC → choose M7 suffix; refer to Schneider coil code table for other voltages

Installation Space: Width 309mm, reserve sufficient cabinet space; for compact layout adopt LC1G series (smaller dimension)

Auxiliary Contacts: No built-in auxiliary contacts by default; order LAD9 series auxiliary modules separately

Maintenance Convenience: Drawer-type coil structure; coil replacement without disconnecting main circuit wiring, ideal for frequent maintenance scenarios

5.2 Recommended Replacement Models

Application Scenario	Recommended Model	Reason
Upgrade existing LC1F	LC1G1250MD	TeSys Giga upgraded series, higher performance, more compact size, fully interchangeable
AC control power supply	LC1F1250M7	Same main circuit parameters, 220VAC coil for AC control system
Motor control (AC-3)	LC1F1250MD (derated to 800A)	Heavy-duty design, usable for AC-3 after derating; alternatively use LC1F1400
Compact cabinet installation	ABB A1450-30-11	Width 280mm, saves 29mm compared with LC1F1250MD
Budget limited	Mitsubishi S-N1250	Japanese brand, 15-20% lower price than European brands with reliable performance
DC supply & frequent operation	LC1F1250MD + LAD9R220	Surge suppressor protects coil and extends service life

5.3 Key Technical Advantages

Heavy-duty Construction: 1260A rated current, 25kA short-time withstand capability, suitable for large industrial loads
Drawer-type Coil: Independent coil module; replaceable without removing main circuit wiring, maintenance efficiency improved by 50%
Wide Voltage Compatibility: Main circuit up to 690V AC / 460V DC, adaptable to various industrial power systems
Global Approvals: Full CE/UL/CSA/CCC/UKCA certification for worldwide project deployment
Eco Compliance: Green Premium certified, meets RoHS/REACh environmental standards for sustainable application

Schneider LC1F1250MD is a TeSys F Series 3-pole 1250A heavy-duty industrial contactor. Its core strengths are drawer-type DC coil design and high short-circuit withstand capability, perfectly suited for AC-1 non-inductive / slightly inductive loads such as resistance furnaces and heating equipment.

When selecting, focus on control supply type (220VDC), load category (AC-1 optimal), and installation space. For upgrade or replacement, prefer the new-generation TeSys Giga LC1G1250MD, or select LC1F1250M7 (220VAC) according to control power type.

Complete Model List of Schneider TeSys F (LC1F) Contactors (Latest 2026 Version)

Classified by model naming rule, current rating, coil code, full model list and selection guide. Covers all LC1F specifications including 3-pole / 4-pole, AC / DC coil, standard / wide voltage versions for heavy-duty industrial control.

LC1F Model Naming Rule

Format: LC1F[Current Rating][Coil Code][Special Function]

Segment	Description	Options & Explanation
LC	Product Category	Contactor product line
1	Contactor Type	1 = Standard single contactor; 2 = Reversing contactor (forward/reverse)
F	Series Code	TeSys F Series heavy-duty type, 115A~2100A
[Current Rating]	Rated Current	115/150/185/225/265/330/400/500/630/780/1000/1250/1400/1700/2100
[Coil Code]	Coil Voltage & Type	First letter = voltage level; last letter = coil type (7=AC, D=DC)
[Special Function]	Optional Feature	S411 = Wide voltage coil (100-250V AC/DC); Blank = Standard version

Example:

LC1F1250MD → 1250A, 220VDC coil

LC1F265M7 → 265A, 220VAC coil

Coil Voltage Code Table (General for Whole Series)

Coil Code	Voltage	Coil Type	Application
B6/B7	24V	AC (50/60Hz)	Safety control circuit, PLC output
C6/C7	36V	AC	Low-voltage safety location
E6/E7	48V	AC	Industrial control, small equipment
F6/F7	110V	AC	North America / Japan standard control system
M6/M7	220V	AC	China / Asia standard general control
P6/P7	230V	AC	European standard general control
Q6/Q7	380V	AC	Industrial high-voltage control, large equipment
R6/R7	400V	AC	European industrial 3-phase standard
S6/S7	415V	AC	Commonwealth national standard
U6/U7	440V	AC	North American industrial standard
BD	24V	DC	DC control, PLC output
CD	36V	DC	DC low-voltage control
ED	48V	DC	DC industrial control
FD	110V	DC	DC control system
MD	220V	DC	General DC control (most widely used)
PD	230V	DC	European DC standard
QD	380V	DC	DC high-voltage control
S411	100-250V	AC/DC Universal	Wide voltage for global projects

LC1F Full Current Ratings & Base Models

3P Standard Type (3P/3NO) for AC-1 resistive load and AC-3 motor load:

Base Model	Rated Current AC-1@440V,40°C	AC-3 Current@400V	Matched Motor Power@400V AC-3	Width (mm)
LC1F115	115A	115A	55kW	100
LC1F150	150A	150A	75kW	100
LC1F185	185A	185A	90kW	125
LC1F225	225A	225A	110kW	140
LC1F265	265A	265A	132kW	160
LC1F330	330A	330A	160kW	180
LC1F400	400A	400A	200kW	200
LC1F500	500A	500A	250kW	220
LC1F630	630A	630A	315kW	250
LC1F780	780A	780A	375kW	280
LC1F1000	1000A	1000A	450kW	300
LC1F1250	1260A	1250A	560kW	309
LC1F1400	1400A	1400A	630kW	320
LC1F1700	1700A	1700A	750kW	340
LC1F2100	2100A	2100A	900kW	360

4P Extended Type (4P/4NO): Model suffix with 4 (LC1F1154 ~ LC1F21004). Rated current same as 3P version, suitable for 4-wire systems.

Complete LC1F Model List by Current

4.1 115A~265A Medium Power

Full Model	Current	Coil Spec	Poles
LC1F115B6	115A	24V AC	3P
LC1F115B7	115A	24V AC	3P
LC1F115BD	115A	24V DC	3P
LC1F115M7	115A	220V AC	3P
LC1F115MD	115A	220V DC	3P
LC1F150M7	150A	220V AC	3P
LC1F150MD	150A	220V DC	3P
LC1F185M7	185A	220V AC	3P
LC1F185MD	185A	220V DC	3P
LC1F225M7	225A	220V AC	3P
LC1F225MD	225A	220V DC	3P
LC1F265M7	265A	220V AC	3P
LC1F265MD	265A	220V DC	3P
LC1F265S411	265A	100-250V AC/DC	3P

4.2 330A~780A High Power

Full Model	Current	Coil Spec	Poles
LC1F330M7	330A	220V AC	3P
LC1F330MD	330A	220V DC	3P
LC1F400M7	400A	220V AC	3P
LC1F400MD	400A	220V DC	3P
LC1F500M7	500A	220V AC	3P
LC1F500MD	500A	220V DC	3P
LC1F630M7	630A	220V AC	3P
LC1F630MD	630A	220V DC	3P
LC1F780M7	780A	220V AC	3P
LC1F780MD	780A	220V DC	3P

4.3 1000A~2100A Super High Power

Full Model	Current	Coil Spec	Poles	Remarks
LC1F1000M7	1000A	220V AC	3P	—
LC1F1000MD	1000A	220V DC	3P	—
LC1F1250M7	1250A	220V AC	3P	Popular model
LC1F1250MD	1250A	220V DC	3P	Popular model
LC1F1400M7	1400A	220V AC	3P	Drawer coil type
LC1F1400MD	1400A	220V DC	3P	Drawer coil type
LC1F1700M7	1700A	220V AC	3P	Drawer coil type
LC1F1700MD	1700A	220V DC	3P	Drawer coil type
LC1F2100M7	2100A	220V AC	3P	Drawer coil type
LC1F2100MD	2100A	220V DC	3P	Drawer coil type
LC1F2100S411P7	2100A	100-250V AC	3P	Wide voltage version

4.4 4-Pole Series (Suffix with 4)

Full Model	Current	Coil Spec	Poles	Application
LC1F1154M7	115A	220V AC	4P	4-wire system
LC1F1854MD	185A	220V DC	4P	3-phase 4-wire
LC1F2654M7	265A	220V AC	4P	Load with neutral line
LC1F4004MD	400A	220V DC	4P	4-pole protection system

Reversing Contactor Models (LC2F Series)

LC2F = Reversing type for motor forward/reverse control with mechanical interlock to prevent simultaneous closing:

Full Model	Current	Coil Spec	Poles	Interlock Type
LC2F115M7	115A	220V AC	3P+3P	Mechanical interlock
LC2F185MD	185A	220V DC	3P+3P	Mechanical interlock
LC2F265M7	265A	220V AC	3P+3P	Mechanical interlock
LC2F400MD	400A	220V DC	3P+3P	Mechanical interlock

Model Replacement & Upgrade Guide
LC1F Upgrade: Replace LC1F with LC1G (TeSys Giga); more compact size, 30% performance improvement, fully interchangeable mounting and wiring.
Coil Replacement: Same current rating different coils are interchangeable (e.g. LC1F1250M7 ↔ LC1F1250MD, only coil module replaced).
Load Application:

AC-1 resistive load: Use 100% rated current

AC-3 motor load: Use 100% rated current (LC1F designed for heavy duty)

AC-4 frequent starting: Derate by 30%

Wide Voltage Requirement: Select S411 suffix model, compatible with 100-250V AC/DC global control power supply.
Quick Selection Chart

Application Scenario	Recommended Model	Key Reason
55kW motor control @400V	LC1F115M7	Matched power, cost-effective
110kW motor control @400V	LC1F225M7	Heavy-duty design, stable operation
560kW resistance furnace	LC1F1250MD	1260A rated current, DC control
Global multi-voltage project	LC1F265S411	Wide voltage adaption, no coil replacement needed
DC control system	LC1FxxxMD	DC coil, strong anti-interference
4-wire distribution system	LC1Fxxx4M7	4-pole design for neutral circuit
Frequent maintenance site	LC1F1400MD+	Drawer-type coil structure, easy maintenance