Description
PIONEER MAGNETICS HYRSP-1500-56 – Hot‑swap 56 VDC, 1.5 kW Redundant Power Supply Module

The PIONEER MAGNETICS HYRSP-1500-56 is a high‑density, hot‑swappable AC/DC power module engineered for redundant shelves and 19-inch rack systems that need a stable 56 VDC bus. From my experience, this form factor is popular in telecom and networking (PoE++/L3 switches), RF amplifiers, battery charging arrays, and industrial controls where 56 VDC provides a little headroom over 48–54 V lines. You might notice that the HYRSP family typically emphasizes reliability—current share, OR’ing, and robust protection are built in so you can scale capacity or maintain uptime without shutting down the rack.
Order Placement Process and Guarantees
- Warranty: 365 days
- Lead time: typically 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment prior to delivery
- Express options: FedEx, UPS, DHL
Key Features
- 56 VDC, ~1.5 kW output – Suited for PoE++ infrastructure, RF, and industrial DC buses where 56 V improves margin over 48–54 V rails.
- Hot‑swappable, redundant architecture – Slide the module in/out of a powered shelf for N+1 redundancy with minimal downtime.
- Wide AC input for global mains – Typically supports 180–264 VAC for full power; 90–132 VAC operation with derating in many cases.
- Active current sharing – Parallel multiple HYRSP modules; share bus helps balance load across units.
- Comprehensive protection – Over‑voltage, over‑current, over‑temperature, and short‑circuit protection help safeguard your DC bus and downstream loads.
- Front‑to‑back forced‑air cooling – Optimized for rack airflow; fans usually controlled thermally for better acoustics and longevity.
- Remote sense & status signals – Compensate cable drops and monitor DC OK / AC OK / Fault; an inhibit/enable pin is typically provided.
- High efficiency for the class – Commonly around 90%+ at nominal load, reducing heat in dense racks.
Technical Specifications
| Brand / Model | PIONEER MAGNETICS HYRSP-1500-56 |
| HS Code | 8504.40 (Static converters – Power supplies) |
| Output Rating | 56 VDC nominal; up to ~1.5 kW (≈ 26–27 A max) |
| Voltage Trim | Typically adjustable around 52–58 VDC via trim/sense (varies by build) |
| Power Requirements | AC input, typically 180–264 VAC, 47–63 Hz for full power; 90–132 VAC with derating (typical for this series) |
| Efficiency | ~90%+ at nominal load (typical for 1.5 kW class) |
| Operating Temperature | 0 to +50 °C at rated load typical; derate above +40 °C depending on airflow |
| Signal I/O Types | Remote sense (+/–), DC OK, AC OK, Fault/Alarm, Inhibit/Enable, Share bus (typical) |
| Communication Interfaces | Discrete control signals as standard; some builds may offer I2C/PMBus (confirm per unit) |
| Cooling | Forced‑air, front‑to‑back; integrated fans |
| Installation Method | Hot‑swap module for redundant power shelf/backplane (19″ rack systems) |
| Dimensions & Weight | 1U‑class module form factor; exact mechanical drawing available on request |
| Protections | OVP, OCP/OLP, OTP, short‑circuit; OR’ing for redundant operation (typical) |
Related or Supporting Products
- PIONEER MAGNETICS HYRSP-1500-48 – 48 VDC variant for systems standardizing on 48 V buses; similar footprint and hot‑swap behavior.
- PIONEER MAGNETICS HYRSP-2000-56 – Higher power (≈2 kW) version for extra headroom or reduced N count in N+1 shelves.
- HYRSP redundant power shelf/backplane – 19″ rack shelf with blind‑mate connectors, share bus, and OR’ing for 2–4 modules (model specifics vary by site standard).
- DC distribution panels (56 V) – For branching to multiple loads; look for panels rated 60 VDC+ with appropriate fuse/CB options.
Quick field note: a systems integrator deploying PoE++ switches told us the 56 V trim range made it easier to stay inside device voltage windows while compensating cable drop in long runs. They also liked being able to swap a failed module in under two minutes without touching the upstream breaker.
Installation & Maintenance
- Rack & environment – Install in a 19″ cabinet with unobstructed front‑to‑back airflow. Keep ambient within 0–50 °C (typical), and allow clearance at fan inlets/outlets.
- Input wiring – Feed from a dedicated AC circuit sized for the shelf’s total current. Use proper PE grounding and follow local electrical codes.
- DC bus & sense – Land outputs on the shelf’s busbars/backplane. Enable remote sense to compensate drop; keep sense leads twisted and routed away from noise sources.
- Redundancy setup – For N+1, ensure current share lines are connected via the shelf. Verify each module’s DC OK and alarm wiring.
- Safety – De‑energize upstream AC (LOTO) before servicing. Wait for DC discharge; indicator LEDs should be off before removal.
- Routine maintenance – Quarterly dust cleaning with dry air; check fan noise and replace if bearings are loud. Confirm output voltage and alarms during PM checks. If the unit supports PMBus, schedule firmware/config audits annually.
Quality & Certifications
- Typically conforms to CE; safety approvals often include UL/CSA for ITE/industrial power supplies.
- RoHS compliance depends on build date and configuration; we can confirm per serial/lot.
- Manufacturing quality systems commonly aligned with ISO 9001 across PMI production eras.
- Manufacturer warranty on original shipments was commonly 12 months; our supplied units carry a 365‑day warranty as stated above.
If you share your target input voltage, required current at 56 V, and whether you plan N+1 redundancy, we can validate the exact HYRSP-1500-56 build options (signals, shelves, and any PMBus availability) and ship from stock when available.









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