1756-PB72 ControlLogix 24VDC 75W Chassis Power Supply

Availability: 20 left in stock

Product Overview The Allen Bradley 1756-PB72 functions as a high-performance DC-input power supply designed specifically for ControlLogix chassis. This single-slot...

SKU: 1756-PB72

Manufacturer: Allen Bradley
Product No.: 1756-PB72
Product Type: Chassis Power Supplie
Product Origin: USA
Payment:T/T, Western Union
Weight: 950g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Allen Bradley 1756-PB72 functions as a high-performance DC-input power supply designed specifically for ControlLogix chassis. This single-slot module installs directly into the standard power supply slot on the left side of the rack, delivering regulated backplane power to drive CPUs, I/O modules, and communication cards. It sources 100% original, brand-new components to guarantee continuous uptime in demanding process control, automotive manufacturing, and utility automation facilities.

Technical Specifications

Parameter	Specification
Manufacturer	Allen Bradley
Product Line	ControlLogix
Part Number	1756-PB72 (Series C)
Condition	100% Brand New Original
Nominal Input Voltage	24V DC
Input Voltage Range	18-32V DC (19-32V DC operational range)
Max. Input Power	95 Watts
Max. Output Power	75 Watts at 0 to 60 degrees Celsius
Backplane Current Capacity	13 A at 5V DC, 2.8 A at 24V DC, 2.8 A at +/-12V DC
Max. Inrush Current	30 Amps
Continuous Isolation Voltage	250 Volts (Between power input and backplane)
Insulation Type	Reinforced Insulation
Conductor Screw Torque	0.565 Nm
Operating Temperature	0 to +60 degrees Celsius
Storage Temperature	-40 to +85 degrees Celsius
Humidity	5% to 95% non-condensing
Protection Layout	Overload, short-circuit, and thermal shutdown

Engineering Advantages

Mitigates Voltage Fluctuations: The wide input range (18-32V DC) protects the control system from heavy machinery voltage drops on the factory floor, ensuring the PLC remains online during DC grid strain.
Simplifies Dense Rack Thermal Management: The high-efficiency design delivers full 75W output up to 60 degrees Celsius. This prevents localized hot spots in tight, unventilated enclosures and eliminates the need for external cooling fans.
Eliminate Ground Loop Noise: The 250V reinforced insulation barriers separate the raw input power lines from the sensitive digital backplane. This stops electromagnetic interference (EMI) from corrupting analog I/O signals.
Saves Footprint Space: The compact, single-slot mounting mechanism mounts directly to the chassis edge, leaving all standard slots open for operational I/O modules.

FAQs

Can I use the 1756-PB72 in a system that requires AC power?

No. This module accepts only DC input voltages (18-32V DC). Connecting this unit to AC mains will damage the internal circuitry. You must use an external AC-to-DC step-down transformer or source an AC-native ControlLogix power supply model instead.
Does this power supply support hot-swapping or redundancy configurations?

No. The 1756-PB72 is a standard single-slot power supply. You must power down the chassis completely before replacing or servicing this module. For redundant architectures, choose the 1756-PR2 framework.
What wire sizes and installation constraints should I use for safety?

Use solid or stranded copper wire rated for the operational temperature environment. Secure the terminal block conductor screws to a torque of exactly 0.565 Nm to prevent loose connections or arcing under heavy industrial vibration.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.