C801-250 Single-pole bi-directional DC high-voltage interlock contactors
Ui up to 1.000 volts; Ith up to 250 amps; Design for external PWM control
C801 – Single-pole bi-directional DC high-voltage interlock contactors for electric vehicles
Compact single-pole DC contactors with interlock and extremely high shock resistance in the NO position for charging powerful 800 volt e-vehicles at 400 volt charging stations.
Powerful electric vehicles usually use two battery banks, each with 400 volts, interconnected to form an 800 volt system in the drive train. This ensures high performance while driving. Only a few 800 volt high-performance charging stations are available. However, interlock contactors enable 800 volt electric vehicles to charge quickly and easily at 400 volt charging stations. For this purpose, interlock contactors of the C801 series configure both battery banks during the charging process so that they are charged in parallel. The robust, durable contactors do not require inert gas and have a high current-carrying capacity.
A patented mechanical interlock system ensures extreme shock resistance during normal operation. This prevents uncontrolled closing of the main contacts and the possibility of a short circuit of both battery units in the event of a collision.
Features
Interlock contactor with mechanical locking in NO position
A patented mechanical interlock reliably prevents uncontrolled closing of the main contact system in the off position/in normal operation. The C801 thus ensures extremely high vibration and shock resistance. In the event of an impact, e.g. as a result of a vehicle crash, the possibility of both battery banks short-circuiting is thus avoided. This significantly increases safety.
Compact dimensions – High rated insulation voltage Ui up to 1,000 volts.
Smallest dimensions – great performance! All air gaps in the contact area are generously dimensioned. The rated insulation voltage is 1,000 volts. The design is based on standard installation geometries.
High continuous thermal current Ith up to 250 amps
Interlock contactors of the C801 series can carry up to 250 amps continuously – provided a sufficiently dimensioned connection cross-section of 80 mm². These excellent values are achieved through high contact forces and optimised contact geometry.
Universal, flexible and resource-efficient
Interlock contactors enable powerful 800 volt e-vehicles to charge quickly and easily even at 400 volt charging stations. Special charging cables are not required and a lower cross-section can be selected for copper wiring inside the vehicle. This saves weight and increases the potential range.
Applications
E-mobility automotive:
Schaltbau C801 series contactors enable powerful 800 volt e-vehicles to charge quickly and easily at 400 volt charging stations. So far, these charging stations are much more widespread than 800 volt charging stations. For this purpose, the contactors configure both battery banks of the vehicle during the charging process so that they are charged in parallel.
Safety is essential: When driving, a patented mechanical interlock of the main contact system ensures extreme shock resistance. This prevents the possibility of both battery banks short-circuiting as a result of a vehicle crash, for example.
Specifications
C801-250
| Type of voltage | DC bi-directional |
| Main contacts, configuration | 1 NO |
| Rated operating voltage Ue | 1,000 V |
| Rated insulation voltage Ui | 1,000 V |
| Rated impulse withstand voltage Uimp | 2.5 kV |
| Pollution degree | PD3 |
| Conv. thermal current Ith | 250 A @ 8 h @ Cross section 80 mm2 @ Terminal temperature max. 150° C @ Ambient temperature max. 65° C |
| Rated short-time withstand current Icw | 2,100 A @ t < 1,000 ms (no contact welding) 16,000 A @ t < 5 ms (contact welding, no explosion, no fire) |
| Coil | 15 V DC Pull in (1 sec max.)/Hold: 13.9 V DC/3.5 –4.8 V DC, 2.6 A DC/0.72 – 1 A DC PWM control: external Coil suppression: external |
| Vibration | VW 80000, M-04, Profile D |
| Shock | Contactor On: No change of status during test (XYZ/±): 60g / 6 ms Contactor Off: No change of status during test (XYZ/±): 120g / 20 ms Contactor Off: No conductive particles detached (XYZ/±): 60g / 45 ms Contactor Off: No conductive particles detached (XYZ/±): 120g / 20 ms |
| Mounting orientation | any |
| Temperature range | –40° C ... +85° C |
| Mechanical endurance | 25,000 operations |
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