Catalog No. PL4000
AC Programmable Load Box
The TESCO PL4000 Programmable AC Load Box is a 4th generation EV charger testing solution, engineered for single-phase AC validation of electric vehicle charging stations up to 14kW. Built in the USA, this portable EVSE load bank delivers accuracy, rugged design, and smart automation features to support manufacturers, utilities, and testing labs. The TESCO PL4000 AC programmable load box combines lab-grade precision with rugged portability. Whether you’re conducting AC EVSE compliance testing, field validation, or manufacturer R&D, the PL4000 ensures accuracy, safety, and seamless integration with the TESCO T4000 and T4350 EVSE Test Systems. Charger Testing Capabilities: • 29A at 120V chargers (~3.5kW) • 50A at 208V chargers (~10.5kW) • 58A at 240V chargers (~14kW) This makes the PL4000 ideal for high-power AC charger validation across CCS1 (J1772) and NACS standards. Key Features: • Auto-Interface: When paired with TESCO’s T4000 or T4350 EVSE Test Systems, the PL4000 is automatically detected. No manual configuration is needed in the EVSE Tester UI. • Auto Cool-Off: After each test, the system uses the EVSE Tester’s internal battery to power cooling fans, ensuring safe and efficient operation. • Integrated Breakers: Includes AC breakers, with DC breakers available for specialized testing with DC chargers. • Built-In Sensors: Monitors ambient temperature, exhaust temperature, humidity, and fan speed. The system halts testing if a fault is detected, protecting equipment and accuracy.
PROGRAMMABLE AC LOAD BOX CATALOG NO. PL4000
PL4000 Specifications: Unit
Details
Size
15”L x 15”W x 12”H
Weight Cabling
44 lbs
Conduit with Staubli termination (7ft) to be used with a T4000 or T4350 L1, L2 and PE VBatt, digital GND, and Comms • Green LED to indicate power • Yellow / Amber LED to indicate Comms with T4000 / T4350 • Red LED to indicate unit is running and dissipating power
LEDs
Operating Temperature Storage Temperature
-4°F to 122°F (-20°C to 50°C) -22°F to 140°F (-30°C to 60°C)
TESCO Metering 925 Canal Street · Bristol, PA 19007 · Phone: 215.228.0500 tescometering.com
2026 V1
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