Disjoncteur Schneider Tesys - 4P - 25A - AC1 - 440V - LC1D128P7
CONTROL YOUR RESISTIVE LOADS UP TO 25A
The Schneider TeSys LC1-D128P7 4P (2F+2O) 25A AC-1 contactor is the ideal partner for controlling heating, pumps and high-power lighting. With its 230V AC coil and 10 million guaranteed operations, it is Schneider Electric reliability at the service of your residential and commercial installations.
- 4 flexible poles (2NO + 2NC): 2 simultaneous independent circuits
- AC-1 specialist: resistive loads up to 25A @ 440V
- 230V AC coil: easy integration, direct control
- Legendary reliability: 10M mechanical operations, 600K electrical operations
Contactor Schneider TeSys LC1-D 4P (2F+2O) 25A AC-1 440V - Ref. LC1D128P7
The Schneider Electric TeSys LC1-D128P7 contactor is a professional modular device designed to control and protect resistive loads up to 25 A AC-1. With its 4-pole configuration (2 NO main contacts + 2 NC main contacts) and its 230V AC 50/60Hz coil, this contactor fits perfectly into residential and tertiary electrical panels for remote control of power circuits.
Typical applications
- Residential electric heating: radiators, convectors, underfloor heating (purely resistive loads)
- Pumps and circulators: swimming pool pumps, water circulation systems, booster pumps
- Power lighting: floodlights, halogen lamps, outdoor lighting
- Light industrial resistive loads: heating resistors, electric ovens, dryers, etc.
- Centralised control: management of several circuits from one control panel (home automation, BMS)
Technical specifications
| Paramètre | Valeur |
|---|---|
| Gamme | TeSys |
| Nom du produit | TeSys D / LC1-D |
| Référence fabricant | LC1D128P7 |
| Type de produit | Contacteur de puissance |
| Application | Charge résistive (AC-1) |
| Catégorie d'emploi | AC-1 (charges non inductives) |
| Description des pôles | 4P (2F+2O / 2NO+2NC) |
| Composition des contacts principaux | 2 contacts NO (Fermés) + 2 contacts NC (Ouverts) |
| Courant assigné d'emploi (Ie) | 25 A à 60°C en AC-1 ≤440V AC |
| Tension assignée d'emploi (Ue) | ≤690V AC 25-400Hz / ≤300V DC |
| Circuit de commande | CA 50/60 Hz |
| Tension circuit de commande (Uc) | 230V AC 50/60Hz |
| Contacts auxiliaires disponibles | 1F+1O (1NO+1NC) – bloc additionnel en option |
| Tension assignée de tenue aux chocs (Uimp) | 6 kV (IEC 60947) |
| Degré de protection IP | IP20 (face avant) selon IEC 60529 |
| Température de fonctionnement | -5°C à +60°C |
| Durée de vie mécanique | 10 millions de manœuvres |
| Durée de vie électrique | 600 000 manœuvres (AC-1, 440V, 25A) |
| Montage | Rail DIN 35mm ou fixation par vis |
| Dimensions (H x L x P) | 85 mm x 45 mm x 92 mm |
| Poids | 0,365 kg |
| Normes | IEC 60947-4-1, EN 60947-4-1 |
| Certifications | CE, CEBEC |
Why choose the TeSys LC1-D128P7 contactor?
1. Flexible 4-pole configuration (2F+2O)
The contactor has 2 main NO (Normally Open) contacts and 2 main NC (Normally Closed) contacts, offering great flexibility for :
- Control 2 independent circuits simultaneously (e.g. 2 heating zones)
- Create alternating control sequences (e.g. switching between two sources)
- Create mechanical or electrical interlocks to secure installations.
2. Category AC-1: specialist in resistive loads
Optimised for purely resistive loads (power factor ≈ 1), the LC1D128P7 guarantees:
- Maximum durability: contacts rated for 600,000 AC-1 operations.
- No significant arcing: minimal contact wear
- Proven reliability: TeSys technology proven for decades
3. 230V AC 50/60Hz coil: easy integration
The 230V AC 50/60Hz coil allows direct control from :
- Programmable time switches
- Electronic thermostats
- Control contactors
- PLCs and home automation systems (via intermediate relay)
4. DIN rail mounting: quick installation
The contactor mounts on a standard 35mm DIN rail, making it easy to :
- Integration into modular enclosures
- Replacement of existing equipment
- Preventive and corrective maintenance
🔧 Installation and use
Connection diagram (typical)
- Main contacts: connection of power circuits (phase(s) + neutral)
- Coil A1/A2: 230V AC power supply from control circuit
- Auxiliary contacts (optional): status signalling or interlocking
⚠️ Warning: The contactor has no overload protection. It must be used in conjunction with :
- A thermal-magnetic circuit breaker suitable for the load current (e.g. 25A curve C)
- Or a thermal motor protection relay (if used for specific applications).
Installation advice
- Ventilation: allow 10-15mm clearance above/below for heat dissipation
- Wiring: use rigid or flexible conductors with ferrules (cross-section 0.75 to 4 mm²)
- Tightening torque: 1.7 Nm (power and control terminals)
- Checking: test the control without load before commissioning under load
Integration in photovoltaic and energy installations
The TeSys LC1-D128P7 contactor can also be used in solar and energy storage systems:
- Electric heating control: controlling heating resistors using photovoltaic surpluses (smart grid)
- Hot water tank management: automatic activation during hours of solar production
- Source switching: switch between mains/generator in emergency systems (with interlock)
- Pump control: control of circulators for solar thermal systems or swimming pools
To find out more about optimising the energy efficiency of your installation, visit our Wattuneed technical blog.
In summary: your benefits with the TeSys LC1-D128P7
- ✅ S chneider Electric reliability: 10 million mechanical operations guaranteed
- ✅ Flexible 4P configuration: 2F+2O for various applications
- ✅ AC-1 specialist: resistive loads up to 25A @ 440V
- ✅ 2 30V AC coil: simple integration into domestic circuits
- ✅ DIN rail mounting: quick, modular installation
- ✅ European standards: IEC/EN 60947-4-1 compliance, CEBEC certification
Wattuneed, your partner for secure, high-performance electrical and photovoltaic installations. 🌞⚡
Data sheet
- Type of electrical equipment
- Disjoncteur
Specific References
- UPC
- 76856381735
- EAN13
- 0768563817359
Disjoncteur Schneider Tesys - 4P - 25A - AC1 - 440V - LC1D128P7 — Mounting and accessories
Disjoncteur Schneider Tesys - 4P - 25A - AC1 - 440V - LC1D128P7 by Schneider Electric is available in our Mounting and accessories catalog. Technical specifications: type of electrical equipment: Disjoncteur. Product weight: 0.4 kg. Reference: LC1D128P7.