Allen-Bradley 1756-PB50K ControlLogix Conformal-Coated Slim DC Power Supply

Brand: Allen-Bradley
Model: 1756PB50K
GEARWELL SKU: GWP-000002059
Category: PLCs & I/O

Key specifications

Depth (approx.): 145 mm
Width (approx.): 78 mm
Height (approx.): 140 mm
Weight (approx.): 0.77 kg
Maximum input power: 85 W at 50 deg C; 70 W at 60 deg C

ControlLogix 1756 power supply and chassis catalog number list (PDF, 111 KB)

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Product overview

The Allen-Bradley 1756-PB50K is a slim DC power supply from Rockwell's ControlLogix 1756 range. It is the K (harsh-environment) version of the 1756-PB50 with the same ratings. It is a slim supply that takes 18…32 V DC (24 V DC nominal) and delivers 60 W at 0…50 °C or 50 W at 0…60 °C: 8 A at 5.1 V DC at 50 °C (6 A at 60 °C), 2 A at 3.3 V DC, 1.5 A at 1.2 V DC and 2.5 A at 24 V DC at 50 °C (2.0 A at 60 °C). It measures 14.0 x 7.8 x 14.5 cm (H x W x D) and weighs about 0.77 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-PB50K ControlLogix Conformal-Coated Slim DC Power Supply
Brand	Allen-Bradley
Model	1756PB50K
Category	PLCs & I/O
Depth (approx.)	145 mm
Width (approx.)	78 mm
Height (approx.)	140 mm
Weight (approx.)	0.77 kg
Maximum input power	85 W at 50 deg C; 70 W at 60 deg C
Current capacity at 5.1 V DC	8 A at 50 deg C; 6 A at 60 deg C; subject to the combined output-power limit
Maximum combined backplane output	60 W at 0-50 deg C; 50 W at 0-60 deg C
Input voltage range	18-32 V DC; 24 V DC nominal
Current capacity at 24 V DC	2.5 A at 50 deg C; 2.0 A at 60 deg C; subject to the combined output-power limit
Enclosure type	Open-style (no enclosure rating)
Power supply operating temperature	0-60 deg C; observe the output derating above 50 deg C
Conductor screw torque	0.565 N m (5 lb-in)