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Siemens 6SL3255-0AA00-4CA1 BOP-2 Basic Operator Panel

Siemens 6SL3255-0AA00-4CA1 BOP-2 Basic Operator Panel

Item NO.: 3745409
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Detail

  • Product NameSiemens 6SL3255-0AA00-4CA1 BOP-2 Basic Operator Panel
  • Item NO.3745409
  • Weight0.1400 kg = 0.3086 lb = 4.9384 oz
  • CategoryPLC
  • BrandSiemens
  • Creation Time2026-08-24
  • SINAMICS G120
Siemens 6SL3255-0AA00-4CA1 | BOP-2 Basic Operator Panel

6SL3255-0AA00-4CA1

BOP-2 Basic Operator Panel Siemens SINAMICS G120
SINAMICS · Operator Panel
Overview Specifications Features Applications Lifecycle FAQ Recommended Models

Overview

6SL3255-0AA00-4CA1 is a BOP-2 Basic Operator Panel from Siemens' SINAMICS G120 drive family. It serves as a local human-machine interface for parameter setting, commissioning, status monitoring, and diagnostics of SINAMICS G120 series frequency inverters.

The panel features a menu-driven interface with a 2-line LCD display, allowing engineers to configure motor parameters, adjust operating frequencies, set acceleration and deceleration times, and view real-time operational data without the need for a connected PC or PLC. Its compact design is suitable for direct mounting on the drive or for control cabinet door installation using an optional mounting kit.

The BOP-2 is available as an optional accessory for SINAMICS G120 converters with CU240B/E-2, CU250S-2, CU230P, G120X, and G120C control units. It is an essential tool for field engineers performing on-site drive commissioning and troubleshooting.

SINAMICS G120 BOP-2 Local Operation Parameter Setting Diagnostics
Key details
  • Siemens SINAMICS G120
  • BOP-2 Basic Operator Panel
  • 2-line LCD display
  • IP55 protection rating
  • Direct drive mounting

Specifications

General specifications

Manufacturer Siemens
Model 6SL3255-0AA00-4CA1
Product type BOP-2 Basic Operator Panel
Product family SINAMICS G120
Display 2-line monochrome LCD
Keypad 6 navigation keys
Protection rating IP55 (installed) / UL Type 12
Operating temperature 0°C to +50°C
Storage temperature -40°C to +70°C
Relative humidity 95% (max, non-condensing)

Physical & compatibility

Mounting Direct drive or panel mount
Compatible drives SINAMICS G120/G120C/G120X/G120P
Control units CU240B/E-2, CU250S-2, CU230P
Door mounting kit 6SL3256-0AP00-0JA0
Country of origin GB
Certifications CE, cULus, RCM
Note: The BOP-2 is an optional accessory and is not included with the standard drive package.

Features

Operator interface & commissioning

  • Local commissioning — Enables parameter setting and drive configuration directly at the field location without the need for a PC or PLC connection.
  • 2-line menu display — Simultaneously displays parameters and their values, simplifying navigation and reducing the need for printed parameter lists.
  • Parameter filtering — Allows quick access to commonly used parameters, accelerating the commissioning process.

Diagnostics & maintenance

  • Real-time monitoring — Provides live display of output frequency, motor speed, current, voltage, and other operational data.
  • Fault and alarm display — Quickly reads fault codes for overcurrent, overvoltage, undervoltage, motor overheating, and other issues to reduce troubleshooting and downtime.
  • Parameter cloning — Supports parameter upload and download for rapid configuration of multiple identical drives.

Applications

The BOP-2 is widely used in industrial automation applications where SINAMICS G120 drives are deployed.

Conveyor systems
Fans & blowers
Pumps
Machine tools
Packaging machinery
Material handling
HVAC systems
Textile machinery
Typical industries: Industrial manufacturing, building automation, water/wastewater treatment, and general process control.
Key applications: The 6SL3255-0AA00-4CA1 is ideal for field commissioning and maintenance of SINAMICS G120 drives, enabling engineers to configure and troubleshoot drives without external programming tools.

Lifecycle

Active currently in production — fully supported

Product status: The 6SL3255-0AA00-4CA1 remains an active, supported product in Siemens' SINAMICS accessory portfolio. It continues to be the recommended BOP-2 solution for new SINAMICS G120 installations and system expansions.

Spare parts & support: Replacement units and accessories are available through Siemens' standard support channels and authorized distributors. The SINAMICS G120 family is designed for long‑term availability.

Replacement & migration:

Migration path: The BOP-2 (6SL3255-0AA00-4CA1) is the current standard operator panel for SINAMICS G120 drives. Key considerations include:
  • For new G120 installations, the BOP-2 is the recommended operator interface option.
  • When replacing an older BOP-1 panel, the BOP-2 offers improved menu navigation and display features.
  • For remote operation, the BOP-2 can be mounted on the cabinet door using the optional mounting kit (6SL3256-0AP00-0JA0).
Related models: 6SL3255-0AA00-4HA1 (IOP-2), 6SL3255-0AA00-4JA0 (IOP-2 intelligent operator panel)

Recommendation: For new SINAMICS G120 installations, the 6SL3255-0AA00-4CA1 remains the recommended BOP-2 solution.

FAQ – Frequently Asked Questions

Q1: What is the purpose of the 6SL3255-0AA00-4CA1?

It is a Basic Operator Panel (BOP-2) for Siemens SINAMICS G120 drives, used for parameter setting, commissioning, and diagnostics.

Q2: Which drives are compatible with the BOP-2?

It is compatible with SINAMICS G120, G120C, G120X, and G120P series drives.

Q3: What is the protection rating of the BOP-2 when installed?

It offers an IP55 protection rating when properly installed on the drive or cabinet door.

Q4: Can the BOP-2 be mounted on a control cabinet door?

Yes, with the optional door mounting kit, order number 6SL3256-0AP00-0JA0.

Q5: What is the difference between BOP-2 and IOP-2?

BOP-2 is a basic operator panel with a 2-line monochrome display; IOP-2 is an intelligent operator panel with a graphical display and more advanced features.

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