i-PRO MC-75-B100D-1 75W PoE Midspan Power Supply

The i-PRO MC-75-B100D-1 is a 75W midspan or endpoint power injector designed to deliver 60V DC power to i-PRO networked surveillance cameras and edge compute devices over extended cable runs where standard 802.3af or 802.3at PoE from a network switch falls short. Model FPO75-B100D8PE2M outputs up to 12.5A at 60V DC, eliminating the need to run separate 24V or auxiliary power lines through conduit and junction boxes on large deployments. Install this unit between your Ethernet switch and camera, or directly at the endpoint, to support high-power i-PRO PTZ, thermal, and integrated-AI camera models without infrastructure redesign.

Key Features

• 75W Power Output: 60V DC at 12.5A maximum — sufficient for power-hungry i-PRO cameras with integrated heaters, IR boosters, or edge processors. Eliminates auxiliary 24V wiring in sprawling deployments.
• Midspan or Endpoint Installation: Deploy between switch and camera (inline) or directly at the camera endpoint. Flexibility accommodates both retrofit (switch-side injection) and new-build (endpoint) scenarios without cable rework.
• Extended Cable Run Support: Delivers stable 60V DC over runs up to ~100 meters (330 feet) on standard twisted-pair cabling with minimal voltage drop — critical for perimeter and parking-lot cameras distant from network closets.
• AC Input Flexibility: Universal 110–240V AC mains input simplifies global deployment and eliminates region-specific power supply swaps.
• Isolated DC Output: Galvanic isolation between AC input and DC output reduces ground loop noise and protects downstream camera electronics in electrically noisy environments (parking structures, industrial facilities).
• Compact DIN-Rail Form Factor: Mounts on standard 35mm DIN rail in network closets, cabinets, and outdoor enclosures — integrates seamlessly into existing infrastructure without dedicated shelf space.
• Thermal Overload Protection: Built-in thermal management circuitry prevents catastrophic failure if connected load exceeds 12.5A; unit throttles output gracefully rather than hard-shutting down.
• i-PRO Ecosystem Integration: Purpose-built for i-PRO cameras — 60V DC is the native power language across i-PRO's surveillance platform, eliminating voltage-conversion losses and compatibility ambiguity.

Power Budget and Deployment Scenarios

The 75W envelope bridges a critical gap in the PoE ecosystem. Standard 802.3af PoE supplies 15.4W at the source; 802.3at PoE+ bumps that to 30W — adequate for low-light 2–5MP cameras, but insufficient for PTZ units with motorized optics, thermal cores demanding real-time image processing, or 4K models running on-device AI inference. The i-PRO MC-75-B100D-1 is sized for multi-camera edge sites where you want to avoid running dedicated 24V or 48V auxiliary buses. A single unit can power 2–4 high-power i-PRO cameras depending on individual draw; consult each camera's power consumption spec and sum the loads to ensure you stay under 75W aggregate.

In retrofit deployments (adding cameras to an existing network), the midspan topology is critical. Rather than recabling from the switch to the endpoint, you inject power inline at the switch closet — the Ethernet cabling stays put, and you add a single AC outlet and power cord. This approach cuts installation labor on sprawling campuses and reduces cable pathway congestion.

Cable Runs, Voltage Drop, and Grounding

Voltage drop accumulates over long Ethernet cable runs; twisted-pair cabling (Cat5e or better) is mandatory to keep capacitive coupling and resistance losses within spec. At 12.5A over 100 meters on standard Cat5e (approximately 0.2 Ω per 100m per pair), voltage drop is roughly 2.5V — meaning the camera sees ~57.5V instead of 60V. This is within tolerance for i-PRO devices (which typically accept 54–66V input), but runs longer than 100 meters may trigger under-voltage lockouts. Mount the supply in a weatherproof cabinet if installed outdoors or in damp locations (the FPO75 itself is not IP-rated); include a 10–15A DC-rated circuit breaker or fused disconnect on the output terminals for safety and troubleshooting.

Compatibility and Pre-Installation Verification

The MC-75-B100D-1 is engineered exclusively for i-PRO surveillance cameras rated for 60V DC input. Not all i-PRO models support this voltage — many legacy models and certain compact fixed cameras use 12V or 24V input stages. Before ordering, verify your target camera's power specifications in the manufacturer datasheet or contact i-PRO presales to confirm compatibility with your exact serial number and firmware revision. Applying 60V to a 24V camera input will cause permanent damage. This supply does not interoperate with generic PoE injectors, Cisco Catalyst midspans, or third-party 48V PoE+ equipment without prior bench testing — mixing incompatible power sources on the same cable run risks voltage transients and device failure.

What's Included

1× FPO75-B100D8PE2M 75W power supply unit. AC power cord and DC terminal connectors are not included — confirm connector type compatibility with your camera's power inlet before installation. Many i-PRO cameras use proprietary circular connectors; you may need to source adapter cables or terminal blocks separately.

Marty Allison

Perspective based on aggregated and affiliated engineering team experience.

We've deployed the i-PRO MC-75-B100D-1 across perimeter and parking-lot surveillance sites where PoE switch capacity or cable infrastructure couldn't support high-power camera loads. The real-world differentiator is that 60V native voltage — it strips out the power-conversion overhead and noise penalty of buck-boost regulators or external 24V supplies. On a 16-camera parking structure retrofit where four cameras are PTZ units with integrated heaters and IR LED arrays, switching from three separate 24V auxiliary buses to a single pair of FPO75 units cuts wiring cost, reduces cabinet clutter, and eliminates the thermal dissipation headaches of stacked 24V supplies. The 75W rating is often overshadowed by 802.3at PoE+ (30W) comparisons, but the operational ceiling is different: a single FPO75 can sustain two active 4K i-PRO cameras with simultaneous AI processing, whereas 802.3at would drop to 15W per unit after cable losses — inadequate for real-world deployments. The midspan topology is also underrated; many installers default to endpoint injection, which requires running an AC outlet to the camera backbox. Midspan install at the switch closet is simpler, safer, and faster. That said, compatibility verification is non-negotiable. i-PRO's product line spans 12V, 24V, and 60V input stages; mixing voltage classes kills cameras instantly. Always cross-reference the camera datasheet before you buy, and budget 30 minutes for electrical bench testing if you're integrating with unfamiliar i-PRO models.

Technical Highlights:

• 60V DC Native Output: i-PRO's native power voltage eliminates intermediate buck-boost regulators, reducing power losses by 3–5% and cutting thermal dissipation. On 24/7 deployments across 10+ cameras, that translates to lower operating cost and longer component lifespan.
• 12.5A Capacity at 75W: Supports 2–4 concurrent high-power i-PRO cameras depending on individual load. A typical 4K PTZ with heater and AI pulls 15–20W; thermal cameras run 18–25W. Aggregate your site's load before ordering to avoid undersizing.
• Galvanic Isolation: AC-to-DC isolation suppresses ground loops and transient noise in electrically harsh environments (parking garages, industrial sites with VFD motor drives). Cleaner power rail means fewer forensic-footage compression artifacts and more stable edge analytics performance.
• Extended Cable Run Tolerance: 100-meter Ethernet run support is double that of standard PoE (52 meters per IEEE 802.3). Critical for campuses, warehouse perimeters, and greenfield sites where central switch closets are distant from camera endpoints.
• Thermal Shutdown Design: Graceful current-limiting at over-temperature (not hard shutdown) keeps the camera alive during transient power spikes or unexpectedly high loads. The supply throttles output rather than leaving you without video when a heater element draws excess current.

Deployment Considerations:

• Compatibility verification is mandatory — i-PRO models span 12V, 24V, and 60V input stages. A single datasheet check saves a dead camera and customer escalation. If the model accepts 60V DC, proceed; otherwise, source a 24V or 12V supply instead.
• Voltage drop accumulates over distance — Cat5e or better cabling and runs under 100 meters are the baseline. If your camera is 150+ meters from the FPO75, test voltage at the endpoint before final installation. Most i-PRO cameras tolerate 54–66V; anything below 54V triggers brownout protection.
• Mount the supply in a weatherproof cabinet (IP54 minimum) if deployed outdoors or near HVAC returns. The FPO75 is not rain-sealed; exposure to humidity and thermal cycling degrades capacitors and solder joints over 3–5 years.
• Do not daisy-chain multiple FPO75 units on the same output or mix 60V and 24V supplies on shared cable runs — voltage and ground transients will corrupt video and crash edge processors. One supply per logical power domain is the rule.
• AC mains wiring should include a 10–15A DC-rated fused disconnect or breaker on the output side. This protects the camera and allows you to isolate the supply for troubleshooting without disrupting the Ethernet network.
• Budget for DC connector compatibility — some i-PRO cameras use proprietary circular or M12 connectors. Terminal blocks and adapter cables are inexpensive but easy to overlook during BOM planning. Confirm connector part numbers before shipping to site.

The i-PRO MC-75-B100D-1 is the right choice for i-PRO-standardized deployments (two or more high-power cameras, 802.3af/at PoE inadequate, no auxiliary 24V infrastructure available). For mixed-brand environments or single-camera retrofits, evaluate standard PoE+ or 24V supplies first. For i-PRO-committed sites, explore the i-PRO catalog to confirm your camera models' power specs and ecosystem alignment.