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PS Series TRU Docking Station for Hybrid or Electric Standby Capable Refrigerated Truck-Trailers
Power your electric Standby Capable refrigerated trailer or hybrid reefer with ESL’s eTRUconnect®, a compact, cost-effective solution built for safety and daisy-chain flexibility.
The PS Series is part of the larger eTRUconnect® product family, delivering operator and operational safety, efficient shore power for electric refrigerated trailers and hybrid units with a compact footprint, easy operation, and the industry’s lowest cost of ownership. Using standard, non-proprietary pin and sleeve connectors, the PS Series is designed to deliver power reliably and safely to your electric reefer trailer fleet, whether you’re running a distribution center, cold storage facility, or truck yard.
Each unit is UL/cUL Listed, safety-interlocked, and built with integrated branch circuit protection. The PS Series is supplied with a Drive-off capable power cord and interlocked connector, simplifying installation and ensuring safe operation.
Key Features of the eTRUconnect® PS Series for Electric Standby Capable Refrigerated Trailers
- UL/cUL Listed safety-interlocked power station with branch circuit protection
- Connection sensing prevents unsafe energization
- High-visibility LED power indicator
- Molded case circuit breaker with short circuit and overload protection
- Compact design for space-constrained loading docks
- Durable Type 3R powder-coated steel enclosure (optional stainless steel)
- Two drive-off safety features to minimize maintenance cost and protect equipment
Configurations include:
- 30A 480VAC, 4-pin 3-wire (IEC 60309)
- 50A 240VAC, 4-pin 3-wire
- Custom cord lengths from 5 to 70 feet

eTRUconnect V2 Power Station
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Dual Voltage eTRUconnect® PS Series
Power Flexibility Without Compromise
The dual voltage version of the PS Series allows facilities to support both 30A 480VAC and 30A 240VAC units with one wall-mounted autotransformer. Ideal for mixed fleets, this transformer safely steps voltage up or down and includes safety interlocks on each output.
Transformer Features:
- 15kVA 480:240 VAC self-contained, wall-mounted unit
- Supports both 480VAC and 240VAC trailer units
- Safety interlocks prevent making or breaking under load
- Each output protected by molded case circuit breakers
Why ESL for Electric Standby Capable Reefer Trailer Power?
- Tailored solutions designed for your facility, with expert support from planning to execution
- Built for standard OEM trailer accessories—no proprietary limitations, lower costs, future-ready
- Engineered specifically for electric Standby Capable refrigerated trailer applications
- Built to minimize risk, simplify operations, and ensure safety at every dock
- Customizable to your yard, fleet size, and power specs
- Proven performance in high-volume logistics and cold chain environments
Want to explore more electric TRU shore power solutions? Visit our eTRUconnect® product catalog to see full system options, specifications, and compatible accessories.
Frequently Asked Questions
What are the benefits of installing eTRUconnects?
Installing eTRUconnects reduces emissions, lowers diesel fuel use, and cuts maintenance and labor costs. Facilities may also qualify for incentives like the LCFS program in select states—making it a smart move for both sustainability and savings.
What makes ESL’s PS Series different from other eTRU power stations?
The PS Series features a compact footprint, drive-off protection, daisy-chain capability, and UL/cUL Listing with integrated safety interlocks. These units are built for reliability in high-traffic docks and cold chain facilities.
Can ESL’s eTRUconnect power multiple electric reefer trailers at once?
Yes. The Dual PS Series allows for daisy-chaining up to two units from a single circuit, making it ideal for facilities with limited infrastructure or high-density operations.
Can ESL’s eTRUconnect systems be integrated into existing facility infrastructure without major retrofits?
Yes. ESL’s PS Series is designed for compatibility with most existing electrical infrastructures. Configurable cord lengths, mounting options, and voltage flexibility allow seamless integration without requiring extensive redesign or downtime.
Power Up Your Fleet with Confidence
Get a custom quote for your PS Series solution with specs, pricing, and expert support to help you build the right system for your operation.