Allen-Bradley 1756-PB75K ControlLogix Conformal-Coated DC Power Supply
- Brand
- Allen-Bradley
- Model
- 1756PB75K
- GEARWELL SKU
- GWP-000003154
- Category
- PLCs & I/O
Key specifications
- Product type
- ControlLogix DC chassis power supply, conformal coated
- Dimensions H x W x D (approx.)
- 140 x 112 x 145 mm
- Manufacturer lifecycle status (checked October 2026)
- Active
- Power supply connection
- Direct chassis backplane connection; no redundant-supply cable required
- Maximum combined backplane output
- 75 W at 0-60 deg C; sum of all output rails must not exceed 75 W
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The Allen-Bradley 1756-PB75K is a standard DC power supply from Rockwell's ControlLogix 1756 range. It is the K (harsh-environment) version of the 1756-PB75 with the same ratings. It takes 18…32 V DC (24 V DC nominal) and delivers up to 75 W at 0…60 °C (32…140 °F) to the backplane: 13 A at 5.1 V DC, 4 A at 3.3 V DC, 1.5 A at 1.2 V DC and 2.8 A at 24 V DC. It measures 14.0 x 11.2 x 14.5 cm (H x W x D) and weighs about 0.95 kg. It mounts on the left side of a 1756 ControlLogix chassis (1756-A4, 1756-A7, 1756-A10, 1756-A13 or 1756-A17).
Technical reference
| Product name | Allen-Bradley 1756-PB75K ControlLogix Conformal-Coated DC Power Supply |
|---|---|
| Brand | Allen-Bradley |
| Model | 1756PB75K |
| Category | PLCs & I/O |
| Product type | ControlLogix DC chassis power supply, conformal coated |
| Dimensions H x W x D (approx.) | 140 x 112 x 145 mm |
| Manufacturer lifecycle status (checked October 2026) | Active |
| Power supply connection | Direct chassis backplane connection; no redundant-supply cable required |
| Maximum combined backplane output | 75 W at 0-60 deg C; sum of all output rails must not exceed 75 W |
| Input voltage range | 18-32 V DC; 24 V DC nominal |
| Power supply configuration | 24 V DC nominal input; conformal-coated ControlLogix supply with 75 W maximum combined output |
| Redundancy configuration | Non-redundant chassis power supply |
| Compatible standard chassis series | B or C; check chassis catalog number |
| Backplane output rail limits | 1.2 V DC: 1.5 A; 3.3 V DC: 4 A; 5.1 V DC: 13 A; 24 V DC: 2.8 A. Combined output: 75 W maximum. |
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