Schneider Electric LC1D25 Contactor

At a glance: The Schneider Electric LC1D25 is a TeSys D series 3-pole 25A Contator CA, suitable for AC-3 motor control (11kW/15HP at 400V). Standard width: 45milímetros. Supports DIN rail and screw mounting. Coil voltages available in multiple AC/DC ratings. Matching thermal overload relays: LRD16‑LRD32. Cross-brand replacements include ABB A16-30-10, Siemens 3RT6026-1AN20, etc..

Part Number Interpretation

Base model: LC1D25

Full model format: LC1D25[Contatos Auxiliares][Tensão da bobina][Freqüência][Special Features]

Code	Significado	Exemplo
LC1D	TeSys D series standard AC contactor	–
25	Rated operational current 25A (AC-3, 400V)	–
2010/1/11	Auxiliary contact configuration: 1NO/0NC, 0NO/1NC, 1NO/1NC	LC1D2510M7C (1NÃO)
M/Q/B/P	Coil voltage code: M=AC220V, Q=AC380V, B=AC24V, P=AC230V	LC1D2510M7C (AC220V)
7月5日	Freqüência: 7=50/60Hz universal, 5=50Hz only	LC1D2510M7C (universal)
C/BL	Special features: C=standard, BL=low-power	LC1D2510M7C (padrão)

Key Specifications

2.1 Main Circuit Parameters

Parâmetro	Value	Notas
Poloneses	3-pólo (3NÃO)	Standard configuration
Rated operational current (AC‑3, 400V)	25UM	Typical for motor control
Rated operational current (AC‑1, 690V)	40UM	Carga resistiva
Rated operational voltage	≤690V AC, ≤300V DC	Circuito principal
Motor power (400V 3-phase)	11kW (15HP)	AC-3 duty
Motor power (220V 3-phase)	5.5kW (7.5HP)	AC-3 duty
Rated insulation voltage	1000V	IEC standard
Rated impulse withstand voltage	8kV	–

2.2 Control Circuit Parameters

Parâmetro	Value	Notas
Coil voltage range	AC24V~400V, DC24V~220V	Multiple options available
Coil power	Inrush: ≤9.5VA, Holding: ≤2VA	Standard version; lower for low-power type
Pick-up voltage	85%~100% Un	–
Drop-out voltage	20%~75% Un	–
Operating frequency	Up to 3600 operations/hour	AC-3 duty

2.3 Mechanical & Mounting Parameters

Parâmetro	Value	Notas
Dimensões	45×85×92mm (without cover) / 45×85×101mm (with cover)	Common for LC1D25–LC1D38
Mounting	35mm DIN rail or screw mounting	Both compatible
Peso	Approx. 370g	Standard version
Protection degree	IP20	Body only
Temperatura operacional	-5℃~+60℃	Wide-temperature version available
Mechanical durability	≥10 million operations	No-load
Electrical durability	≥1 million operations	At rated AC-3 conditions

Selection Guide

3.1 Load Type Matching

AC-3 (motor control): Direct use for motors up to 25A, máx.. 11kW at 400V

AC-1 (resistive load): Up to 40A, suitable for heaters, iluminação, etc..

DC load: Confirm DC rating; derating to ≤70% of AC rating recommended

3.2 Coil Voltage Selection

Application	Recommended coil voltage	Advantage
Industrial automation	AC220V (M7) / AC380V (Q7)	Matches common factory voltages
Safety control circuits	CA24V (B7) / DC24V	Safety extra-low voltage
Sistemas CC	DC24V~110V	Reduces electromagnetic interference

3.3 Auxiliary Contact Extension

Padrão: 1NÃO + 1NC built-in auxiliary contacts

Expansion: Add LAD series auxiliary modules; up to 4NO + 4NC

3.4 Protection Coordination

Proteção contra sobrecarga: Use with LRD16‑LRD32 thermal overload relays (setting: 6.4~32A)

Proteção contra curto-circuito: Recommended C65N‑D/3P 32A or NSX series circuit breakers

Supressão de surto: RC snubber for AC coils; freewheeling diode for DC coils

3.5 Mounting & Heat Dissipation

Mount vertically; keep ≥5mm above/below, ≥2mm left/right

Derate 10–15% for side-by-side installation

Above 40°C, derate approx. 1% per °C increase

Cross-Brand Replacements

Marca	Direct Replacement	Key Comparison
ABB	A16-30-10 (16UM) / A26-30-10 (26UM)	Mesmas dimensões; A26 closer to 25A
Siemens	3RT6026-1AN20 (25UM)	Identical mounting, 1NO+1NC
Mitsubishi	S-T25 (25UM)	Standard 3-pole, AC220V/380V coils
LS	GMC-22 (22UM) / GMC-32 (32UM)	Cost-effective; GMC-32 for heavy duty
Chint	NC1-2510 (25UM)	Domestic alternative, cost advantage

Common Full Models & Applications

Full Model	Description	Typical Application
LC1D2510M7C	3P 25A, 1NÃO, AC220V coil, 50/60Hz	Water pumps, fãs
LC1D2501Q7C	3P 25A, 1NC, AC380V coil, 50/60Hz	Compressors, transportadores
LC1D2511B7C	3P 25A, 1NO+1NC, AC24V coil	Safety circuits, E-stop
LC1D25BL	3P 25A, low-power DC24V coil	Battery systems, energy-saving equipment

Schneider Electric LC1D25 Contactor Mounting Dimensions Manual

At a glance: Standard dimensions: W45mm × H85mm × D92mm (without cover) / D101mm (with cover). Fits 35mm standard DIN rail. Screw mounting: 2×M4 slotted holes, horizontal center distance 35mm, vertical center distance 60–70mm adjustable.

Basic Outline Dimensions (W×H×D)

Configuration	Dimensões (milímetros)	Dimensões (em)	Notas
Without cover	45 × 85 × 92	1.77 × 3.35 × 3.62	Standard bare version
With cover	45 × 85 × 101	1.77 × 3.35 × 3.98	With safety cover
Low-power type	45 × 85 × 99	1.77 × 3.35 × 3.90	por exemplo, LC1D25BL

Width 45mm: Common for LC1D25–LC1D38, compact mounting

Height 85mm: Base height without top auxiliary modules

Profundidade: Varies slightly by cover/coil; refer to actual unit

Mounting Methods & Detailed Dimensions

2.1 Montagem em trilho DIN (Recommended)

Fits 35mm standard DIN rail (EM 60715)

Locks onto center rear of contactor

Mount vertically (coil downward) for best cooling and stability

Clearance: ≥5mm top/bottom, ≥2mm left/right; derate 10–15% side-by-side

2.2 Screw Mounting

Parâmetro	Value	Notas
Mounting holes	2×M4 slotted holes	For M4×8 or M4×10 screws
Horizontal center distance	35milímetros	Fixed
Vertical center distance	60–70mm	Slotted for adjustment
Mounting plate thickness	1.5–3mm	Galvanized steel or insulation plate
Tightening torque	1.2–1.5N·m	Avoid damage

Add-On Module Dimensions

Top auxiliary modules (LAD series): W45mm, H≈20mm, depth unchanged

Side auxiliary modules: +≈18mm width per module, H and D unchanged

Thermal overload relays (LRD16‑LRD32): W45mm, H72.5mm, D79.9mm, direct snap-on

Mounting Precautions
Temperatura ambiente: -5℃~+60℃; derate above 40℃
Avoid high vibration, heavy dust, corrosive gases
Terminals: Circuito principal (L1/L2/L3, T1/T2/T3) downward; bobina (A1/A2) on right
Leave gaps between adjacent contactors for ventilation