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1756-OB32 A-B Central control module
1756-OB32 A-B Central control module - Image 2
1756-OB32 A-B Central control module - Image 3

1756-OB32 A-B Central control module

Brand： A-B

Model number：1756-OB32

Colour：new                                    Warranty: 12 months

Lead Time：3-day working day   Country of origin: USA

Price: Please contact us         Product weight：0.5kg

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Category: SKU: 1756-OB32 Brand:

Description

1756-OB32 A-B Central control module

Product Dimensions：

Product Description

The Allen-Bradley 1756-OB32 is a high-density digital output module from the ControlLogix family, designed to provide reliable and efficient control of industrial output devices. It features 32 output points organized into 4 groups of 8, each with its own common. This module is ideal for applications requiring a large number of on/off outputs in a compact form factor, offering flexible integration with ControlLogix and GuardLogix systems.

Product Specifications

Parameter Value/Description
Part Number 1756-OB32
Type Digital Output Module
Number of Outputs 32 (4 groups of 8 outputs)
Output Type Sourcing (current sourcing to load)
Voltage Range 10–30V DC
Output Current 2A per point, 8A per group (max), 16A total (max)
On-State Voltage Drop 0.5V max at 2A
Off-State Leakage 1.0mA max
Isolation 250V DC continuous between groups and backplane
Diagnostic Capability Yes (wire-off, overload, and fault detection)
Removable Terminal Block (RTB) 1756-TBNH or 1756-TBSH (required)
Operating Temperature 0–60°C (32–140°F)
Certifications UL, CE, C-Tick, KC, Ex, and others (varies by series)

Product Advantages

  • High Density: 32 points in a single module saves valuable panel space and reduces wiring complexity.
  • Grouped Commons: 4 isolated groups allow flexible voltage distribution and mixed sourcing loads.
  • Diagnostics: Advanced diagnostics such as wire-off, overload, and fault detection help reduce downtime and improve maintenance efficiency.
  • Robust Design: Industrial-grade components ensure long-term reliability in harsh environments.
  • Hot-Swappable: Can be inserted or removed while the system is powered, reducing downtime during maintenance.
  • Compatibility: Fully compatible with ControlLogix and GuardLogix systems, enabling seamless integration into existing architectures.

Precautions

  • Terminal Blocks: The 1756-OB32 requires a removable terminal block (1756-TBNH or 1756-TBSH), which must be ordered separately.
  • Current Limits: Ensure that the current per group (8A max) and total current (16A max) are not exceeded to avoid damage or malfunction.
  • Heat Dissipation: When operating at high currents, ensure proper ventilation to prevent overheating.
  • Wiring Precautions: Use appropriate wire gauges and ensure correct polarity to prevent damage to the module or connected devices.
  • Configuration: Properly configure the module in RSLogix 5000 or Studio 5000 Logix Designer to match the application requirements and enable diagnostics.
  • Environmental Considerations: Avoid exposure to moisture, corrosive gases, or extreme temperatures outside the specified operating range.

Product Applications

The Allen-Bradley 1756-OB32 is widely used in industrial automation systems that require a large number of digital outputs, including:

  • Manufacturing: Control of actuators, solenoids, relays, and indicator lamps in assembly lines.
  • Material Handling: Control of conveyors, sorters, diverters, and stackers in automated warehouses and distribution centers.
  • Packaging Machinery: Operation of filling machines, labelers, sealers, and palletizers.
  • Process Control: Control of valves, pumps, and motors in water treatment, chemical processing, and oil & gas applications.
  • Automotive: Control of robotic arms, welding equipment, and safety interlocks in production lines.
  • Energy Management: Switching of circuit breakers, alarms, and status indicators in power distribution systems.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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