GFP400 for Circuit Protection

Advanced battery systems require high-performance safety components due to their high current levels and power densities.

The GigaFuse from GIGAVAC, a brand of Sensata Technologies, is a fast-acting electromechanical device with low heat generation that enables circuit trips at precise currents. It comes in both passive and passive/active combinations, and its design makes it simple to pair with contactors and removes the thermal aging fatigue that is common with DC fuses.

Highlights

• Top-tier supplier of automotive components
• Application knowledge and a substantial automotive knowledge base that covers supply chain and quality
• Engineering, commercial assistance, and a global/local strategy
• Supply assurance: Worldwide production capacity

Features

• Functional Safety: Electromechanical release mechanism in passive technologies
• Quick disconnect: Clear time of less than 3 ms, regardless of current level
• Coordination of system protection: Coordination of system protection: adjustable trip current for simple pairing with high-voltage contactors
• Optional active control to give designers the choice between active and passive protection techniques
• Up to 10 MW interrupt capability
• 400 A continuous current carry (4/0 busbars); Consult engineering for higher current

Applications

Image Credit: Sensata Technologies BV

The measurements are in millimeters or inches. Unless otherwise indicated, all dimensions have a tolerance of +/-1 mm.

The dimensions and tolerances displayed are from the product envelope drawing; when developing for particular applications, contact Sensata to verify the values.

Image Credit: Sensata Technologies BV

Mounting

• M5 or No. 10 Screws
• Torque 1.7 - 4 Nm [15-35 in-lb]

Case Material

• Thermoplastic Polyamide Resin

Power Connection

• M8 x 1.25 Female
• Torque 12-18 Nm [106-159 in-lb]

Pyro Connection

• Refer to TE Instruction Sheet 411-78033 for additional connector details.
• Qualified Acc. to LV 16 and USCAR
• Initiator Resistance: ≥1.7 Ω and ≤2.5 Ω
• Triggering Pulse Current: ≥1.75 A / 0.5 ms ≥1.2 A / 2.0 ms
• Diagnostic Current: ≤100 mA
• No Trigger Current: ≤0.4 A or ≤5.0 A / 4 μs
• Color of connector retainer may vary due to supply availability

Specifications

Source: Sensata Technologies BV

General Notes

1. For customers who can accommodate a vented device, contact Sensata Technologies for more information.
2. Current rating (both continuous and momentary) depends on bus bar size and customer-specific application conditions. Consult with Sensata Technologies for specific details.
3. Performance in application will vary based on customer environment and system isolation requirements. Validated at the following conditions: 650 V, 15.5 kA, 12 μH system inductance. Up to 850 V, 12 kA, with 4 μH system inductance. For 1000 V applications above 3 kA, contact Sensata Engineering.
4. Clear time below 5 kA can reach up to 4 ms max. IR after 8 MW interrupt >1 MΩ
5. Insulation resistance is dependent on the power level of the max interrupt load, and IR increases with reduced power levels or lower system inductance. IR after a standalone short circuit may be below 0.5 M at system inductance over 4 uH. Performance, when tested at the system level, will show improved IR post-interrupt.
6. Device can operate in higher ambient temperatures with derated current carry while below maximum terminal temperature.
7. Measured on top of the bus bar at the bolted joint. Customer is responsible for ensuring this condition is met otherwise damage to device can occur.
8. Sensata Technologies recommends orienting Z axis orthogonal to any mechanical shock pulses to ensure robust performance under load. Sensitivity is dependent on trip setting, consult with Sensata Technologies for more details. See photo for axis orientation.
9. Performance depends on specific vibration profile and trip level, consult with Sensata Technologies for your specific requirements.
10. For Automotive Applications, please request a technical workshop with Sensata Technologies Application Engineering.

Momentary Current Curve

Rise in the terminal temperature at 80 °C at a given curve.

Image Credit: Sensata Technologies BV

Image Credit: Sensata Technologies BV