Description
The APC PD3P300AT5B 3-Pole Circuit Breaker (T5 Type) delivers robust protection and modular scalability for your Symmetra PX250/500kW power systems. Designed to manage high-capacity data center loads, this 300A breaker supports both 400V and 480V 3-phase power configurations. With CE and UL certifications, it ensures compliance and safety in demanding environments. The unit comes with a comprehensive installation guide and is backed by APC’s industry-leading warranty. Ideal for IT professionals scaling mission-critical infrastructure.
| Category | Details |
|---|---|
| Manufacturer | APC by Schneider Electric |
| Part Number | PD3P300AT5B |
| Product Type | 3-Pole Circuit Breaker (T5 Type) |
| Application | For Symmetra PX250/500kW |
| Input Voltage | 400V / 480V 3-Phase |
| Input Frequency | 50/60 Hz |
| Output Voltage | 400V / 480V 3-Phase |
| Max Line Current | 300 A |
| Output Connector Type | Hard Wire 3-wire (H N + E) |
| Mounting Mode | Not rack-mountable |
| Mounting Location | Front |
| Certifications | CE, UL Listed |
| Ambient Operating Temp | 32 to 104 °F (0 to 40 °C) |
| Storage Temp | 5 to 104 °F (-15 to 40 °C) |
| Included Accessories | Installation guide |
| Dimensions (H x W x D) | 17.01 x 22.01 x 21.50 in (43.2 x 55.9 x 54.6 cm) |
| Weight (Net) | 15.12 lb (6.86 kg) |
| Warranty | 1 Year Repair or Replace |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
