CENTRAL JUNCTION BOX
Product Description
HORIZON’s Junction Box is an essential component for precise control and seamless connectivity. Engineered to operate flawlessly in extreme environmental conditions, this sealed enclosure guarantees robust protection and reliability for critical electrical connections. Whether it’s handling input, output, or control functions, it is designed to deliver the performance and durability required for effective power management.
Key Technical Features
Input
Input Voltage
230/400 volt AC 3φ nominal source (5 wires)
360-440 volt AC 3φ source leaves output unchanged
340-460 volt AC 3φ source allows continued operation without risk of damage
VAC
Input Frequency
50/60 Hz
Soft Start
Initial start-up current limited to 250% of nominal operating input current.
Input Current
10A to each phase at output power 28V-195A and input voltage 230VAC/400VAC three phase.
Output
# of Outputs
1
Output Voltage
27V
Nominal
Current
Regulated over a range of 10% to max. Amps.
Power
Up to 5460W
When 3 modules of TITAN 3G 28V 1800W are connected in parallel.
Efficiency
86% Nominal
@230 VAC
Operating Regime
Constant voltage, constant current with automatic crossover.
Polarity
Negative pole (-) OUT floated
Stabilization with output Fluctuations
+-700mV for specified extremes 10% max. Load
Stabilization with line fluctuations
+-100mV at max. Load
Ripple & Noise
< 500mV p-p max. 100mV RMS max. At 27VDC, and max. Load
Operational Temp
-30°C to +71°C
No derating between -25C to +40C.
Cooling
Natural cooled
Protection features
Input main circuit breaker three phase
Output voltage protection (OVP)
Internal thermal protection
Automatic shut-off without damage when input voltage is above/below the specified limits
Each Output includes internal blocking diode in series with (+) output connected at junction box
Input-to-chassis, input-to-output insulation exceeds 20M at 500V.
Dielectric voltage withstand of 2500VDC for 1 minute between: input-to-chassis, Input-to-Output
IP Level
IP65 (Designed to meet - Mil-Std 810F Blowing rain)
Dimensions
157x330x285mm
WxHxD
weight
16Kg / 35lbs
Environmental Conditions
Designed to meet - Mil-Std 810F
Free fall test
Vibration
Mechanical shock
Humidity
Blowing rain
Blowing dust
Transportation
Salt
Fungus