PRODUCTS
High-Voltage Power Distribution Unit (PDU)
The SwitchBox High-Voltage Power Distribution Unit enables efficient power allocation in electrified systems up to 1000 V. Designed for on-road and off-road applications, the PDU provides high-power and low-power fused outputs in a compact, serviceable package with integrated safety features.
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Key features:
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300 A maximum continuous current
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500 A upgrade available
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1200 A peak current for 10 seconds
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Up to 1000 V maximum operating voltage
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High-Voltage Interlock Loop (HVIL)
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Serviceable fused low-power outputs from 10 A to 50 A
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Error-proof connector keying with labeled receptacles
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IP67 ingress protection rating
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Vibration tested per MIL-STD-810H Method 514.8
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Optional mating connector kit and FCJB integration


DC Fast Charge Junction Box (FCJB)
The SwitchBox DC Fast Charge Junction Box enables safe, high-power DC fast charging by managing the high-voltage connection between the battery and charge port. The FCJB combines independently controlled contactors, CAN-based sensing, HVIL, fuse protection, and waterproof packaging in a compact, integration-ready assembly.
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Key features:
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300 A maximum continuous current
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1000 A peak current for 10 seconds
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63 A to 300 A fuse range
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Up to 1000 V maximum operating voltage
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Independently controlled positive and negative contactors
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Galvanically isolated voltage and current measurement reported over CAN
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Contactor state feedback through sense contacts
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High-Voltage Interlock Loop (HVIL)
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IP67 ingress protection rating
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Vibration tested per MIL-STD-810H Method 514.8
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Optional EVCC, mating connector kit, and PDU integration
Supervisory VCU
The EV supervisor is the primary control for the vehicle’s functionality and
is often the most crucial and time-consuming part of the design process.
Starting from scratch is very difficult and the problems caused by so many
complexities may jeopardize timelines and budgets.
SWBX with expertise in electrification, power electronics, and control software, can help jump start your EV controls with our EV
supervisor controller.


Battery Management
Our team knows energy storage and has designed and built a complete Battery Management System solution which can also be integrated into a complimentary modular custom battery pack based. These scalable designs can work for almost any EV, Hybrid, or grid application. The battery packs include power distribution and fusing integrated as an internal HV PDU.
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