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Schneider LC1D09BDC
Schneider LC1D09BDC is a 3-pole AC contactor of the TeSys D series, with a rated current of 9A, a coil voltage of DC24V, 3NO main contacts and 1NO+1NC auxiliary contacts. It is suitable for AC-1/AC-3 loads, supports DIN rail mounting, and is commonly used in industrial automation and motor control.
Core Parameters
| Parameter Item | Details |
| Product Model | LC1D09BDC |
| Series | Schneider TeSys D (Domestic Version) |
| Main Contact Configuration | 3-pole normally open (3NO), rated current 9A |
| Rated Operating Voltage | Up to 690V AC |
| Coil Specification | DC24V DC coil |
| Auxiliary Contact | 1 normally open + 1 normally closed (1NO+1NC) |
| Service Category | AC-1 (resistive load), AC-3 (squirrel-cage induction motor) |
| Mounting Method | Standard 35mm DIN rail or screw mounting |
| Mechanical Life | Approx. 10 million operations; Electrical life approx. 1 million operations |
| Certifications | CCC, CE, UKCA, RoHS, REACH |
| Overall Dimensions | 45mm (W) * 77mm (H) *95mm (D), Weight approx. 0.48kg |
Model Code Interpretation
LC1D: 3-pole contactor of TeSys D series
09: Rated current 9A
B: DC coil type
D: Coil voltage DC24V
C: Mark for domestic version
Typical Applications and Replacement Selection
- Application Scenarios: Suitable for start-stop control of squirrel-cage motors with current ≤9A, as well as control of AC-3/AC-1 loads such as heating equipment, fans and water pumps. It is compatible with DC control circuits of PLC and DCS systems.
- Replacement Selection
Intra-series replacement: LC1D09BD (imported version with identical parameters)
Cross-brand replacement: ABB A16-30-01 (DC24V), Siemens 3RT2015-1BB41 (DC24V), Chint NXC-0910Z (DC24V)
Installation and Safety Points
- Installation Specifications
Ambient temperature: -5℃~+40℃, Altitude ≤2000m, Avoid dust/corrosion/condensation
Reserve heat dissipation clearance, spacing between adjacent devices ≥5mm
Wiring torque: Main circuit 1.7N·m, Control circuit 0.5N·m
- Safety Tips
Verify voltage after coil power-off to prevent residual voltage
It is recommended to match a thermal overload relay (e.g., LRD06C) for motor circuits
Derating is required for frequent start-stop scenarios (recommended ≤80% of rated current)
Common Troubleshooting
| Fault Phenomenon | Possible Causes | Troubleshooting Methods |
| No power to coil | Power circuit break, loose wiring | Measure coil terminal voltage, inspect wires and terminals |
| High noise after pull-in | Contaminated iron core contact surface, broken shading ring | Clean the iron core, replace the shading ring |
| Contact ablation | Overload, incorrect load matching | Check load type, replace contact set |
| Coil burnout | Overvoltage/undervoltage, frequent on-off | Install a surge suppressor, optimize control logic |
Procurement and Maintenance
Order Number: LC1D09BDC, Packaging: 1 pc/box, 21 pcs/carton
Warranty Period: 18 months, It is recommended to inspect contact wear and wiring tightness quarterly
The following are the mainstream cross-brand direct replacement models for Schneider LC1D09BDC (3-pole, 9A, DC24V, 3NO main contacts, 1NO+1NC auxiliary contacts), classified by brand with core parameter matching marked for quick selection and replacement.
- Key Points for Core Parameter Matching
Ensure the following key parameters are consistent during replacement:
Pole number: 3-pole
Rated current: 9A (at AC-3 400V)
Coil voltage: DC24V (DC)
Main contacts: 3NO (3 normally open)
Auxiliary contacts: 1NO+1NC (1 normally open + 1 normally closed)
Service category: AC-1/AC-3 (suitable for resistive loads and squirrel-cage motors)
- Cross-brand Replacement Model Comparison Table
| Brand | Model | Core Parameter Matching | Remarks |
| Schneider (Intra-series) | LC1D09BD | Fully consistent parameters | Imported version, replacement for domestic LC1D09BDC |
| ABB | AX09-30-11-80*24VDC | 3P,9A,DC24V,3NO+1NO+1NC | AX series for motor-specific use, BC series for general use |
| BC6-30-11-P01 | |||
| Siemens | 3RT2023-1BB41 | 3P,9A,DC24V,3NO+1NO+1NC | 3RT2 as standard type, 3RT6 as economic type |
| 3RT6015-1BB41 | |||
| Chint | NXC-09M/22/Z DC24V | 3P,9A,DC24V,3NO+1NO+1NC | NXC as new model, CJX2 as classic model |
| CJX2-0911Z DC24V | |||
| Delixi | CJX2s-0911Z DC24V | 3P,9A,DC24V,3NO+1NO+1NC | Z indicates DC coil version |
| Eaton Moeller | DILM9-10(24VDC) | 3P,9A,DC24V,3NO+1NO+1NC | Confirm auxiliary contact configuration |
| DILM9-10(24VDC)+auxiliary contact | |||
| Changshu Switchgear | CK3-0910Z DC24V | 3P,9A,DC24V,3NO+1NO+1NC | High-quality domestic replacement brand |
| People’s Electric Appliance | RMK-0910Z DC24V | 3P,9A,DC24V,3NO+1NO+1NC | Cost-effective, suitable for industrial scenarios |
III. Notes on Replacement Selection
- Installation Compatibility: All recommended models are suitable for 35mm DIN rail mounting, with dimensions close to LC1D09BDC (approx. 45mm in width), enabling direct replacement of installation positions.
- Wiring Matching: Main circuit wiring torque 1.7N·m, control circuit 0.5N·m, consistent with the original contactor.
- Thermal Relay Matching: It is recommended to match a thermal overload relay below 9A of the same brand (e.g., ABB TA25DU06, Siemens 3RB2016, Chint NR2-063) to ensure consistent motor protection.
- Surge Protection: It is recommended to install a freewheeling diode or surge suppressor for DC coils to extend service life.
- Derating Use: For frequent start-stop scenarios (>1200 times/hour), derate to below 7.2A for use.
- Quick Selection Suggestions
- Pursue original quality: Select Schneider LC1D09BD
- Prioritize cost performance: Select Chint NXC-09M/22/Z or Delixi CJX2s-0911Z
- System compatibility: Select AX09-30-11-80 for ABB systems, 3RT2023-1BB41 for Siemens systems
- Spare part universality: Prioritize mainstream domestic models such as NXC/CJX2s for easier procurement and maintenance
