AC-DC Power Supplies
CMH250 Series
250 Watts
• 250 W Convection-cooled
• Industry Standard 4”x 7”Package
• 80 VAC to 300 VAC Input
• 5V/2A Standby & Signals Set (optional)
• IT & Medical Safety Approvals
• 3 Year Warranty
Dimensions:
The universal AC input CMH250 provides 250W of convection cooled output power in a 7” x 4”
package, over the temperature range -40°C to +50°C with derating to +70°C. Approved for IT and
Medical and with a feature set including a 5V/2 A standby output and a range of analog signals, the
CMH250 is ideal for a wide range of applications where convection-cooling is desirable.
CMH250:
7.00 x 4.00 x 1.57” (178 x 101.6 x 39.2 mm)
CMH250-C:
7.39 x 4.06 x 1.92” (187.8 x 103.1 x 48.9 mm)
Models & Ratings
Fan Supply V3
(1,2,3)
Output Voltage 1
Output Current V1
Standby Supply V2
Output Power
Model Number
(optional)
12.0 V / 0.6 A
12.0 V / 0.6 A
12.0 V / 0.6 A
12.0 V / 0.6 A
12.0 V / 0.6 A
12 V
15 V
24 V
28 V
48 V
21.0 A
16.7 A
10.4 A
8.9 A
5.0 V / 2 A
5.0 V / 2 A
5.0 V / 2 A
5.0 V / 2 A
5.0 V / 2 A
250 W
250 W
250 W
250 W
250 W
CMH250PS12
CMH250PS15
CMH250PS24
CMH250PS30
CMH250PS48
5.2 A
Notes
1. Add suffix '-01' for 5V/2A standby & analog signal set, e.g. CMH250PS12-01
2. Add suffix '-C' for covered version, e.g. CMH250PS12-C or for covered
versions with 5V/2A standby & analog signals set add '-01C', e.g.
3. Add suffix '-50' for 5V/2A standby & PMBus signal set, e.g. CMH250PS12-50
CMH250PS12-01C (Derating will be applicable and is under evaluation)
Mechanical Details
6.20 (157.5)
0.40 (10.2)
1.57 0.02
(39.9 0.5)
1.00 (25.4)
M3 MOUNTING HOLES IN 4 POSITIONS.
MAX PENETRATION 2.5mm
0.90 (22.9)
5.20 (132.1)
7.00 0.02 (177.8 0.5)
1.00 (25.4)
2.00 (50.8)
4.00 0.02
(101.6 0.5)
-VE CON3
+VE CON2
OUTPUTTERMINALS
M4 SCREW IN 2 POSITIONS
TORQUETO 8 LBS-IN
(90 cNm) MAX.
L
1.01 (25.7)
0.83 (21.1)
N
E
1.05 (26.6)
0.59 (15.1)
M3 MOUNTING HOLES IN 4 POSITIONS.
MAX PENETRATION 2.5mm
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