Schneider LC1F500 Contactor

Range: TeSys F (High-power imported contactor, discontinued)

Model naming rule:

LC1F500 + Coil suffix

LC1F: TeSys F 3-pole contactor

500: Rated operational current 500 A under utilisation category AC-3 at 440 V

Suffix examples:

M7: AC 220 V, 50/60 Hz (Most common model: LC1F500M7)

Q7: AC 380 V

ED: DC 48 V

⚠️ Recommended replacement after discontinuation: LC1G500 (New-generation TeSys Giga)

2. Main Electrical Parameters

Main Circuit

Number of poles: 3P, 3NO (3 normally open main contacts)

Rated insulation voltage Ui: 1000 V

AC-3 (Motor load, 55°C): 500 A

AC-1 (Resistive load, 40°C): 700 A

Rated short-time withstand current Icw: 4200 A / 10 s

Controllable Motor Power (AC-3)

220 V: 147 kW

380/400 V: 250 kW

415 V: 280 kW

440 V: 295 kW

690 V: 335 kW

Coil Parameters (Take AC coil M7 as example)

Inrush power: 1100 VA

Hold-in power: 18 VA

Operating voltage range: 0.85～1.1 × Uc

Closing time: 40～65 ms; Opening time: 100～170 ms

Service Life & Maximum Operating Rate

Mechanical durability: 10 million cycles

Maximum operating frequency: 2400 cycles/hour

3. Construction & Mounting

Main circuit connection: Bolt connection for busbars or cable lugs, tightening torque 35 N·m

Control terminal tightening torque: 1.2 N·m

Overall dimension (W × H × D): Approx. 233 × 238 × 232 mm

Mounting: Base plate screw mounting

4. Compatible Accessories

Thermal Overload Relay

Matching electronic thermal relay: LR9F7375 (132～220 A)

Note: Direct mounting between LC1F500 and LR9F7375 requires swapping Phase A and Phase C terminals of the thermal relay for alignment.

Auxiliary Contacts

LA1F, LA8F auxiliary contact modules (No built-in auxiliary contacts; need to be ordered separately).

Mechanical Interlock

LA7F406 (For forward/reversing circuit).

5. Important Discontinuation Notice

LC1F500 series including LC1F500M7 / LC1F500Q7 are fully discontinued.

Stock spare parts are gradually depleted. For new projects, select the replacement directly:

✅ LC1G500KUEN (Wide voltage coil 100–250 V AC/DC)

✅ LC1G500LSEA (200–500 V AC/DC)

LC1G500 shares the same current rating, but dimension differs; cabinet layout needs hole dimension verification.

6. Typical Applications

3-phase fans, water pumps, air compressors, crushers, variable frequency drive mains bypass and other LV motor circuits up to 250 kW.

If required, I can provide:

1) Complete dimension drawing of LC1F500;

2) Comparison checklist for LC1F500 ↔ LC1G500 replacement;

3) Full coil voltage model list.

Schneider LC1F500 (TeSys F Series)

✅ Mechanical durability: 10 million cycles (10×10⁶ cycles)

Test condition: Rated control voltage, no-load operation.

Supplementary reference parameters:

1. Electrical durability (AC-3, 400 V, 500 A): Approx. 150,000 cycles;
2. Maximum operating frequency: 2400 cycles/hour;
3. Reminder: This model is discontinued; replacement model LC1G500.

Official Replacement Models for Schneider LC1F500 (TeSys F)

LC1F500 full series discontinued. Official upgrade series: TeSys Giga LC1G500 (3-pole). It offers identical electrical rating: 500 A under AC-3 at 440 V.

1. Primary Direct Replacement Models (Sorted by Coil Voltage)

Model description:

KUEN: Standard version, 100~250 V (Top choice to replace M7)

LSEA: Advanced version, 200~500 V (To replace Q7)

EHEA: Advanced version, 48~130 V (To replace F7)

2. Critical Notes During Replacement
3. Mounting dimensions are not interchangeable

LC1G width is roughly 35% narrower than LC1F;

✅ To reuse existing mounting holes: Install adaptation base LA9GRFB2 (Suitable for LC1G265～500), no new drilling required.

2. Accessories are incompatible; old LC1F accessories cannot be reused

Original: LA1F auxiliary contacts, LA7F mechanical interlock cannot be mounted on LC1G

New accessories for LC1G:

Auxiliary contacts: LA9G series

Mechanical interlock: LA9G970 (Horizontal forward/reversing)

3. Matching thermal overload relay updated

Original matched LR9F7375; LC1G500 matches LR9G series electronic thermal relays.

4. Performance Comparison

Mechanical durability: LC1F500 = 10 million cycles; LC1G500 = 8 million cycles

AC-3 rated current: Identical 500 A @440 V

LC1G Advantages: Electronic wide-voltage coil, stronger voltage fluctuation resistance, contact wear diagnosis available.

3. Alternative Solutions for Two Scenarios
4. Emergency spare parts solution

For urgent on-site maintenance: Purchase original stocked LC1F500 from market (Price increased, supply tight, watch out for refurbished units). Not allowed for new projects.

2. Cross-brand alternative (Non-Schneider OEM)

Siemens 3RT1075, ABB AF580; Only applicable for retrofit projects, not recommended for new cabinet design.

Simplified Selection Advice

For most domestic working conditions (Original coil AC220V LC1F500M7)

👉 Preferred option: LC1G500KUEN + LA9GRFB2 adaptation base (If original mounting holes need reservation)

Service Life Parameters of Schneider LC1G500 (TeSys Giga)

1. Mechanical Durability (Official Rating)

8 million cycles (8×10⁶ cycles)

Tested under no-load condition with rated control voltage.

Compare with old LC1F500: Mechanical durability 10 million cycles, slightly lower.

2. Electrical Durability (AC-3, 400 V, 500 A Motor Load)

✅ Official standard reference value: 150,000 cycles (Same as LC1F500 datasheet value)

Important Remarks:

1. Electrical durability is not a fixed value, affected by operating frequency, starting current, ambient temperature, surge suppression and start-stop frequency;
2. Under AC-3e (Heavy-duty frequent start-stop), electrical durability will be significantly lower than 150,000 cycles;
3. Under AC-4 (Inching, reverse braking), electrical durability is only 20,000～30,000 cycles;
4. Under AC-1 resistive load (Heaters), electrical durability can reach more than 500,000 cycles.
5. Extra Key Advantages (LC1G VS LC1F)

LC1G500 supports independent replacement of main contact assembly!

When contacts are burned out, only the contact module needs replacement instead of the whole contactor, greatly reducing long-term maintenance cost; LC1F500 does not support separate contact replacement. Once contacts are damaged, the whole unit must be replaced.

4. Maximum Allowable Operating Frequency

AC-3: 600 cycles/hour

AC-3e: 600 cycles/hour

AC-1: 300 cycles/hour

AC-4: 150 cycles/hour

Service Life Comparison Table: LC1F500 ↔ LC1G500