GRANKIA GIR4K-48 3U single phase 48v rack mount power inverter 4000w offers true sine-wave output suitable for sensitive electronics. The 48v rack mount power inverter 4000w is a heavy-duty, industrial-grade power solution. It’s designed for seamless integration into standard 19-inch rack systems.
This rack mount power inverter is engineered for reliability and high efficiency. It converts 48V DC battery power into stable, clean AC power. This makes it the ideal choice for telecommunications, data centers, and critical emergency backup systems.
The 48v rack mount power inverter stands out for its stability and ease of installation. Whether you are managing a remote telecom site or a sophisticated server room, this inverter offers reliability. This reliability is of the “set-and-forget” type, essential for mission-critical operations.
Rack Mount Power Inverter Features
Built-in Toroidal Transformer
Enhances conversion efficiency, reduces electrical noise, and ensures a stable, low-distortion sine wave output.
Peak/surge capacity
Up to 12000W for short-duration motor starts and high inrush loads.
48V DC input
Direct connection to common telecom and battery backup systems (lead-acid, AGM, gel, or Li-ion banks sized for 48V).
Rack-mount 3U form factor
3U rack-mount chassis for dense equipment racks and cabinets.
Protections
Overload, short-circuit, over/under-voltage, over-temperature, reverse polarity, and ground-fault protection to protect both inverter and connected loads.
Cooling
Front-to-back forced-air cooling with smart fan control for temperature-dependent speed.
Technical Specifications (Representative)
- Model: GIR4K-48,
- Rated power: 4000W,
- AC Input: 110V/120V or 220V/230V/240V,
- AC Output: 110V/120V or 220V/230V/240V,
- Frequency: 50/60 Hz (auto-sensing or selectable),
- DC Input: 48VDC,
- Transfer time: <8 ms,
- Battery type: VRLA/AGM/LiFePO4,
- Wave Form: Pure Sine Wave,
- Communications: RS-232,
- Dimension: 483x420x132mm [3U].
Product Overview
Fault Code List
| Code | Description |
| E01 | Power amplifier over current |
| E02 | Output short circuit protection |
| E03 | Overload protection |
| E04 | Over temperature protection |
| E05 | Battery over voltage protection |
| E06 | Low battery voltage protection |
| E07 | Phase reverse protection |
| E08 | Low output voltage protection |
| E09 | Date of manufacture does not match |
| E10 | Battery power down, voltage drop |
Applications
- Data centers and server racks requiring compact, high-power DC-to-AC conversion.
- Telecom base stations and network shelters with 48V battery banks.
- Edge computing, industrial automation, and control rooms.
- Backup power for critical loads, UPS systems, and inverter-based power distribution.
- Renewable energy systems where 48V battery storage is used.
Installation
- Mount unit in a 19″ rack with specified front/rear clearances (min. 50 mm rear, 100 mm top recommended).
- Install appropriate battery cabling: use battery‑rated, low‑impedance cables sized for max DC current; keep cable runs short.
- Fit DC protection: DC fuse or breaker sized per inverter input current, installed close to battery positive terminal.
- Connect AC output to distribution panel via appropriately rated breakers and wiring. Ensure neutral and earth bonding per local code.
- Configure output voltage/frequency and protection thresholds via local display or remote interface.
- Enable/verify communications and logging; integrate into monitoring system.
- Perform no‑load and stepped-load commissioning tests; verify thermal behavior and alarm responses.
- Document serial numbers, firmware versions, and commissioning measurements.
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