Power supply for DIN rail, 12V / 1.25A DC

Properties:

General information:

• Compact housing cross-section (similar to a circuit breaker)
  • allows use of the power supply in building automation control cabinets
• Flexible in application:
  • Generous 100...240V input range
  • CE Marking and UL Listed
• High efficiency: typ. 85%
• Large operating temperature rnage: -20..+60 degrees Celsius
• Compact DIN rail housing: 25 x 93 x 56 mm

Standards & more

• Conforms to standards both in office and industrial environments:
  • High noise resistance per EN 61000-6-2
  • Low noise emission per EN 55032:2015 + A1 Cl. B, EN 61000-3-2 & EN 61000-3-3

Background information

W&T Web-IOs are often used in larger quantities at a centralized location. In such situations a common power supply for the devices makes the application much more transparent than would be the case if the devices were powered individually.

If there is not already a 12V power supply in the installation, this problem can be solved elegantly and cost-effectively with the 15W DIN rail power supply #11087, which can be used to power multiple 12V devices.

Of course the power supply can also be used where in addition to the 12V supply for the Web-IO assembly group power is also required for the rest of the installation. In this case you simply need to ensure that the total current draw does not exceed the rating of the DIN rail unit.

Technical data

• Output power:
  • max. 15W
• Efficiency:
  • typ. 84%

• Input voltage:
  • 85..264VAC, 120..370VDC
• Frequency:
  • 47..63 Hz
• Input current:
  • 0.48A at 230V AC
• Inrush:
  • max. 65A at 230V AC
• No-load losses:
  • <0.5W

• Output voltage:
  • 12V DC (selectable 10.8...13.2V)
• Tolerance:
  • +/-1%
• Ripple:
  • max. 120mV
• Rated current:
  • 1.25A
• Minimum load:
  • none

• Overcurrent limiter:
  • at 105%...160% of the nominal current
• Short circuit protected:
  • Yes
• Overvoltage protection:
  • Shutdown at 13.8...16.2V
  • Reset using POWER ON

• Start time:
  • 1000ms at rated load and 230V AC
• Rise time:
  • 50ms at rated load and 230V AC
• Voltage bridging:
  • 70ms at rated load and 230V AC

• Cooling:
  • Convection cooling
• Dielectric strength:
  • In-Out: 3KV AC
• Isolation resistance:
  • In-Out: 100 Mohm at 500VDC

• Operating temperature:
  • -20..60°C, power derating
  • over a range of 50..60°C
• Storage temperature:
  • -40..85°C
• Relative humidity:
  • Operating: 20..90% relative humidity
  • Storage: 10..95% relative humidity
  • (non-condensing)

• Connections:
  • 2-pin input, 2-pin output
  • with screw terminals
• MTBF:
  • >1,172,300 hours (per MIL-HDBK-217F at 25° C)
• Merchandise:
  • 2-year manufacturer’s guarantee

• Weight:
  • 85 g
• Dimensions:
  • 25 x 93 x 56 mm

• Approvals:
  • UL, c-UL, TÜV, CB, CE
• Safety:
  • Meets
  • UL 60950-1 / EN 60950-1
• EMC:
  • Meets
  • EN 55022 B
  • EN 61000-3-2, EN 61000-3-3
  • EN 61000-4-2, EN 61000-4-3
  • EN 61000-4-4, EN 61000-4-5
  • EN 61000-4-6, EN 61000-4-8
  • EN 61000-4-11, ENV 50204
  • EN 61204-3, EN 61000-6-1

• Manufacturer:
  • MEAN WELL Enterprises Co., Ltd.
• Power supply type:
  • DR-15-12