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Type：
General Type DIN rail with Three Phase or High Input Range
（Series：DRH‐120, DRT‐240, DRT‐480, DRT‐960）
DRH‐120‐24
DRH‐120‐48
DRT‐240‐24
DRT‐240‐48
DRT‐480‐24
DRT‐480‐48
DRT‐960‐24
DRT‐960‐48
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
Rated Current of
Equipment (Amp)
Cross‐section of
2
Lead(mm
)
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).
Installation Manual
INPUT: 400 ‐500VAC 0.65A 50/60Hz
INPUT: 400 ‐500VAC 0.65A 50/60Hz
INPUT: 400 ‐500VAC 0.95A 50/60Hz
INPUT: 400 ‐500VAC 0.95A 50/60Hz
INPUT: 400 ‐500VAC 1.7A 50/60Hz
INPUT: 400 ‐500VAC 1.7A 50/60Hz
INPUT: 400 ‐500VAC 2.4A 50/60Hz
INPUT: 400 ‐500VAC 2.4A 50/60Hz
18
16
6A
6‐10A
0.75
1.00
OUTPUT: 24V 5A
OUTPUT: 48V 2.5A
OUTPUT: 24V 10A
OUTPUT: 48V 5A
OUTPUT: 24V 20A
OUTPUT: 48V 10A
OUTPUT: 24V 40A
OUTPUT: 24V 20A
14
12
13‐16A
16‐25A
1.5
2.5
10
25‐32A
4
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Summary of Contents for Mean Well DRH-120-24
- Page 1 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. ...
- Page 2 Installation Manual （8）Suggested fuse and maximum number of the PSUs that can be connected to a circuit breaker at 230V are shown as below. Circuit breaker Model Fuse C16 D16 DRH‐120 T4A/H250V 14 16 DRT‐240 F3A/L250V 8 10 DRT‐480 F6.3A/L250V 3 5 DRT‐960 F6.3A/L250V ...
- Page 3 Installation Manual Warning / Caution !! （1）Risk of electrical shock and energy hazard. All failure should be examined by a qualified technician. Please do not remove the case of the power supply by yourself! （2）Risk of electric arcs and electric shock (danger to life). Connecting both the primary and the secondary sides together is not allowed. （3）Risk of burn hazard. Do not touch the unit in operation and shortly after disconnection! （4）Risk of fire and short circuit. The openings should be protected from foreign objects or dripping liquids. （5）Only install the unit in a pollution degree 2 environment (Note.1). （6）Please do not install the unit in places with high moisture or near the water. （7）The maximum operating temperature is 40°C for DRT‐240 and DRT‐480 series, 50°C for DRH‐120 series and DRT‐960 series, please do not install the unit in places with high ambient temperature or near fire source. （8）The FG ( ) must be connected to PE (Protective Earth). （9）Output current and output wattage must not exceed the rated values on its specification. （10）Disconnect system from supply voltage: Before commencing any installation, maintenance or modification work: Disconnect your system from supply voltage. Make sure that inadvertent connection in circuit will be impossible! （11）For continued protection against risk of fire, replace only with same type and rating of fuse. Pour ne pas compromettre la protection contre les risqué d’incendie, remplacer par un fusible de même type et de memes caractéristiques nominales. Note.1: Pollution Degree 2 applies where there is only non‐conductive pollution that might temporarily become conductive due to occasional condensation. Generally refer to dry, well‐ventilated locations, such as control cabinets. Manufacturer： MEAN WELL ENTERPRISES Co., Ltd. No.28, Wuquan 3rd Road, Wugu District, New Taipei City, Taiwan, 24891 Tel: +886‐2‐2299‐6100 Web: www.meanwell.com ...
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