Q: Which Eltek power shelves and controllers support this module, and does it allow hot-swap expansion with legacy Flatpack2 units?

Designed in a standard 1U form factor (41.5×109×327 mm), the Flatpack2 48/3000 HE natively fits Eltek Flatpack2 1U/2U/3U 19-inch racks and Compact DC systems. It communicates over high-speed digital CAN bus with Smartpack, Smartpack S, and Smartpack2 monitoring controllers. The module incorporates true hot-swap capabilities and autonomous digital active current sharing (imbalance <±5%), allowing seamless parallel expansion and mixed deployment alongside legacy Flatpack2 48/2000 or standard 48/3000 modules on the same DC bus.

Q: What protection architectures and environmental durability specifications ensure the reliability of Flatpack2 48/3000 HE?

The module operates within a harsh temperature envelope of -40°C to +75°C, delivering full 3000W rated output up to +55°C with automatic thermal derating up to +75°C driven by smart internal forced-air fans. Integrated input metal oxide varistors (MOV) provide surge immunity up to 4kV/2kA and sustain input surges up to 300VAC. Critical protection layers include output overvoltage latch-off (OVP), input undervoltage shutdown, continuous short-circuit protection, and galvanic isolation, achieving a verified MTBF exceeding 350,000 hours per Telcordia SR-332.

Question 1

What are the core electrical specifications and power efficiency metrics of the Eltek Flatpack2 48/3000 HE (ELTEK-REC-FP2-3000-HE)?

Accepted Answer

The Eltek Flatpack2 48/3000 HE delivers an engineering-grade nominal output of 3000W at -48VDC (adjustable from 43.5V to 57.6VDC) with a maximum continuous output current of 62.5A (nominal 60A). Featuring advanced high-frequency soft-switching resonance topology, it achieves a peak efficiency of 96.5% with power factor >0.99 and THD <5%. The AC input voltage spans from 85VAC to 300VAC, providing full 3000W output within the nominal 185VAC–275VAC envelope and smooth linear derating below 185VAC down to 85VAC to prevent system drops.

Question 2

Which Eltek power shelves and controllers support this module, and does it allow hot-swap expansion with legacy Flatpack2 units?

Accepted Answer

Designed in a standard 1U form factor (41.5×109×327 mm), the Flatpack2 48/3000 HE natively fits Eltek Flatpack2 1U/2U/3U 19-inch racks and Compact DC systems. It communicates over high-speed digital CAN bus with Smartpack, Smartpack S, and Smartpack2 monitoring controllers. The module incorporates true hot-swap capabilities and autonomous digital active current sharing (imbalance <±5%), allowing seamless parallel expansion and mixed deployment alongside legacy Flatpack2 48/2000 or standard 48/3000 modules on the same DC bus.

Question 3

What protection architectures and environmental durability specifications ensure the reliability of Flatpack2 48/3000 HE?

Accepted Answer

The module operates within a harsh temperature envelope of -40°C to +75°C, delivering full 3000W rated output up to +55°C with automatic thermal derating up to +75°C driven by smart internal forced-air fans. Integrated input metal oxide varistors (MOV) provide surge immunity up to 4kV/2kA and sustain input surges up to 300VAC. Critical protection layers include output overvoltage latch-off (OVP), input undervoltage shutdown, continuous short-circuit protection, and galvanic isolation, achieving a verified MTBF exceeding 350,000 hours per Telcordia SR-332.

Key specifications	Value
AC Input Voltage Range	85VAC ~ 300VAC (Nominal 185~275VAC) VAC
Nominal DC Output Voltage	-48 V DC
Cooling Method	Built-in fan-forced air cooling and automatic derating protection against overtemperature
Physical Dimensions Spec	41.5 (1U) × 109 × 327 mm

Eltek Flatpack2 48/3000 HE Flagship High Efficiency Rectifier -48V 60A 3000W

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