Product Description
🔹 General Information
|
Manufacturer |
Allen-Bradley |
|---|---|
|
Model/Part Number |
1738-EP24DC |
|
Description |
POINT I/O Power Supply |
🔹 Technical Specifications
Power & Electrical Characteristics
|
Attribute |
Specification |
|---|---|
|
I/O Module Capacity |
5 to 17 I/O modules (depending on current rating) |
|
Input Voltage Rating |
12V DC, 24V DC nominal (10-28.8V DC range) |
|
Operating Voltage |
10-28.8V DC |
|
Input Current (Max) |
6A for 10ms |
|
Backplane Output Current |
5V DC, 1.3A |
|
Field Side Power Requirements (Max) |
24V DC (+20% = 28.8V DC) @ 400mA |
|
PointBus Output Current |
1A at 10-19.2V input; 1.3A at 19.2-28.8V input |
|
Power Consumption (Max) |
9.8W @ 28.8V DC |
|
Power Dissipation (Max) |
3.0W @ 28.8V DC |
|
Thermal Dissipation (Max) |
10.0 BTU/hr @ 28.8V DC |
|
Isolation Voltage |
50V RMS (Tested at 1250V AC RMS for 60s) |
|
Input Overvoltage Protection |
Reverse polarity protected |
|
Interruption |
Output voltage remains within specifications for 10ms at 10V with max load |
Field Power Bus
|
Attribute |
Specification |
|---|---|
|
Supply Voltage |
12V DC, 24V DC nominal |
|
Voltage Range |
10-28.8V DC |
|
Supply Current (Max) |
10A |
Environmental & Physical Characteristics
|
Attribute |
Specification |
|---|---|
|
Dimensions (H x W x D) |
1.25 x 2.63 x 4.25 inches (31.75 x 66.80 x 107.95 mm) |
|
Weight |
0.637 lb (0.289 kg) |
|
Operating Temperature |
-20 to 60°C (-4 to 140°F) |
|
Storage Temperature |
-40 to 85°C (-40 to 185°F) |
|
Relative Humidity |
5-95% non-condensing |
|
Shock (Operating/Non-Operating) |
30g / 50g |
|
Vibration |
5g @ 10-500Hz |
|
Enclosure Type Rating |
Meets IP65/66/67 (when marked) |
|
Mounting Base Screw Torque |
#8 screw, 7.5 in-lbs in Aluminum, 16 in-lbs in Steel |
EMC & Immunity
|
Attribute |
Specification |
|---|---|
|
ESD Immunity |
IEC 61000-4-2: 6kV contact, 8kV air |
|
Radiated RF Immunity |
IEC 61000-4-3: 10V/m (30MHz - 2000MHz) |
|
EFT/B Immunity |
IEC 61000-4-4: ±4kV at 5kHz on power ports |
|
Surge Transient Immunity |
IEC 61000-4-5: ±1kV line-line (DM), ±2kV line-earth (CM) on power ports |
|
Conducted RF Immunity |
IEC 61000-4-6: 10Vrms (150kHz - 80MHz) |
|
Emissions Standard |
CISPR 11: Group 1, Class A |
