ABB TB852 3BSC950263R1 I/O terminal base module

ABB TB852 3BSC950263R1 I/O terminal base module

Specific Parameters

• Electrical ParametersTerminal Type: Spring-loaded tool-free wiring terminals, supporting wire diameter 0.2-2.5mm²Terminal Quantity: 32-position wiring terminals (including signal terminals, power terminals, PE grounding terminals)Rated Voltage: 250V AC/DC (compliant with IEC 60947-1 standard)Rated Current: 10A (long-term operation), 20A (short-term peak)Insulation Resistance: ≥100MΩ (measured at 500V DC)Dielectric Strength: 2.5kVrms (between terminals, between terminals and housing, 1-minute withstand voltage)Grounding Method: Independent PE grounding terminal, compliant with IEC 61140 safety standardSignal Compatibility: Supports analog (4-20mA, thermocouple, RTD) and digital (DI/DO) signal transfer
• Environmental ParametersOperating Temperature: -40℃ to 70℃ (non-condensing environment)Storage Temperature: -40℃ to 85℃Relative Humidity: 5% to 95% (non-condensing, compliant with IEC 60068-2-3 standard)Protection Rating: IP20 (module itself, compliant with IEC 60529 standard)Anti-interference Performance: Compliant with IEC 61326-1 standard, common-mode interference immunity ≥80dBVibration Resistance: 10-500Hz frequency range, 1g acceleration (sine wave), 30 minutes per axis
• Mechanical ParametersOverall Dimensions: 100mm×160mm×25mm (L×W×H, compatible with standard I/O module installation size)Housing Material: UL94 V-0 grade flame-retardant engineering plastic, with anti-static coatingWeight: Approximately 200gMounting Method: 35mm standard DIN rail mounting, supporting snap-on connection with I/O modulesStatus Indication: 1 LED power indicator (green, lit when power is normal)Wiring Marking: Laser-etched markings next to terminals, clearly indicating signal type and terminal number

Product Performance

High wiring efficiency: The spring-loaded tool-free design allows wire crimping without a screwdriver, with a single terminal wiring time ≤10 seconds, significantly shortening on-site wiring cycles; the wide compatible range of wire diameters adapts to commonly used industrial signal wire specifications.

Strong compatibility: It can be directly connected to AC 800M series AI, AO, DI, DO modules through a snap-on structure, without additional adapter accessories, and supports universal analog and digital signals, reducing the types of spare parts and inventory costs.

Outstanding operational reliability: 2.5kVrms high dielectric strength and ≥100MΩ insulation resistance prevent leakage between terminals or signal crosstalk; the UL94 V-0 grade flame-retardant housing can prevent flame spread in high-temperature or short-circuit scenarios, complying with industrial safety standards.

Excellent maintenance convenience: The laser-etched terminal markings are wear-resistant and non-fading; combined with the LED power indicator, the power supply status can be quickly confirmed; the independent disassembly design of the module and I/O module allows replacement of the I/O module without removing the wiring, reducing maintenance downtime.

Strong environmental adaptability: The wide temperature operating range of -40℃ to 70℃ covers extreme industrial scenarios; the anti-vibration and anti-interference design ensures stable contact of wiring terminals in complex environments such as power plants and petrochemical industries, with no risk of signal interruption.