Technical Parameters
Contact Parameters
| Parameter | Value |
|---|---|
| Rated operational current (le) | 500A |
| Rated operational voltage (Ue) | 12-1000VDC |
| Minimum load | 1A 12VDC |
| Main contact type | 1SH (SPST NO DM) |
| Nominal resistance of main circuit | MAX 30mV (@100A) |
| Main contact mounting | M8 external thread |
| Connecting torque | 10-12 N·m |
| Max. switching current | 2500A 300VDC |
| Contact resistance | <0.15Ω |
Coil Parameters (12/24VDC)
| Parameter | Value |
|---|---|
| Rated voltage (Us) | 12/24VDC |
| Operating voltage range | 9-36 VDC |
| Pick up voltage | 8-9 VDC |
| Release voltage | 6-7 VDC |
| Coil power (holding) | 3.2W |
| Inrush current | 3.8A (0.1s) @12V |
| Holding current | 0.267A@12V; 0.133A@24V |
| Pick up time | ≤45ms |
| Releasing time | ≤10ms |
Model Variants
FXC7-500T-P
Basic model without auxiliary contacts
FXC7-500TH-P
With normally open auxiliary contacts
FXC7-500TC-P
With normally closed auxiliary contacts
Life Characteristics & Environmental Specifications
| Parameter | Value |
|---|---|
| Mechanical Life | 300,000 cycles |
| Capacitive load life (RC=1ms) | 600A 30,000 cycles |
| Dielectric withstand voltage | AC 3000V |
| Insulation resistance | ≥1000MΩ@1000VDC |
| Shock Stability test | 196m/s² (20G) |
| Vibration resistance | 10-2000Hz, 20G |
| Operating ambient temperature | -40℃ to +85℃ |
| IP Grade | IP67 (Inner space) |
| Altitude | ≤4000m |
| Weight | Approx. 550g (555g with auxiliary) |
Installation & Safety Notes
Important Installation Guidelines
- Use spring washers to prevent loose screws during installation
- Maintain specified torque ranges: 10-12 N·m for contacts, 2.5-3.5 N·m for mounting holes
- For capacitive loads, always include pre-charge circuit to prevent transient currents
- External conductor cross-section must be ≥185mm²
- No polarity requirement for main contacts and control coil leads
Application Fields
- Electric Vehicles (EV) and charging systems
- Quick Charging Stations
- Photovoltaic Systems and Solar Farms
- Energy Storage Systems
- Industrial DC Power Distribution
- High Power DC Switching Applications
Technical Notices
- This contactor has a specified operational life – replace when necessary
- Design circuits to ensure power can be cut off within one second
- Do not use products that have been dropped or damaged
- Avoid placement near strong magnetic fields or thermal radiation sources
- For inductive loads with L/R>1ms, use inrush current protection devices
- Ensure drive circuit power exceeds coil requirements for proper operation