Installation Manual
Type
：
General Type DIN rail with Three Phase or High Input Range
（
Series
：
DRH-120, DRT-240, DRT-480, DRT-960
）
DRH-120-24
INPUT: 400 -500VAC 0.65A 50/60Hz
OUTPUT: 24V 5A
DRH-120-48
INPUT: 400 -500VAC 0.65A 50/60Hz
OUTPUT: 48V 2.5A
DRT-240-24
INPUT: 400 -500VAC 0.95A 50/60Hz
OUTPUT: 24V 10A
DRT-240-48
INPUT: 400 -500VAC 0.95A 50/60Hz
OUTPUT: 48V 5A
DRT-480-24
INPUT: 400 -500VAC 1.7A 50/60Hz
OUTPUT: 24V 20A
DRT-480-48
INPUT: 400 -500VAC 1.7A 50/60Hz
OUTPUT: 48V 10A
DRT-960-24
INPUT: 400 -500VAC 2.4A 50/60Hz
OUTPUT: 24V 40A
DRT-960-48
INPUT: 400 -500VAC 2.4A 50/60Hz
OUTPUT: 24V 20A
Introduction
General type with three phase or high input range is a DIN rail power supply series with a high input range,
340-550Vac. Like other Mean Well’s DIN series, they can be mounted on a TS35 Standard DIN rail.
Installation
（
1
）
Always allow good ventilation clearances, 5mm left and right, 40mm above and 20mm below, around the unit
in use to prevent it from overheating. Also a 10-15 cm clearance must be kept when the adjacent device is a
heat source.
（
2
）
The appropriate mounting orientation for the unit is vertical, the input terminals at the bottom and output on
the top for DRH-120, the input terminals on the right and output on the left for DRT-240, DRT-480 and
DRT-960. Mounting orientations other than that, such as upside down, horizontal, or table-top mounting, is
not allowed.
（
3
）
Use copper wire only, and recommended wires are shown as below.
AWG
18
16
14
12
10
Rated Current of
Equipment (Amp)
6A
6-10A
13-16A
16-25A
25-32A
Cross-section of
Lead(mm
2
)
0.75
1.00
1.5
2.5
4
Note: Current each wire carries should be de-rated to 80% of the current suggested
above when using 5 or more wires connected to the unit.
Make sure that all strands of each stranded wire enter the terminal connection and the screw terminals are
securely fixed to prevent poor contact. If the power supply possesses multi-output terminals, please make
sure each contact is connected to wires to prevent too much current stress on a single contact.
（
4
）
Use wires that can withstand temperatures of at least 80°C such as UL1007.
（
5
）
Recommended wire strapping length is 5mm (0.197”).
（
6
）
Recommended screwdriver is
4mm, slotted type.
（
7
）
The recommended torque setting for terminals is 10 kgf-cm (9 Lb-in).
