GE IC660BBD021 Mark I/II Series Sink I/O Block

Overview
The IC660BBD021 from GE Fanuc is a Sink I/O Block belonging to the Genius I/O family, designed for high-performance industrial control systems. Engineered for reliability and precision, it provides efficient digital input and output management for distributed control networks. The module is widely used in GE Mark I and Mark II control systems, offering robust electrical isolation and durable operation under demanding industrial conditions.

Technical Specifications

• Model: IC660BBD021

• Manufacturer: GE Fanuc (General Electric)

• Series: Mark I / Mark II

• Product Type: Sink I/O Block

• Operating Voltage: 18–56 VDC (24/48 V nominal), 18–30 VDC (24 V operation)

• Power Requirement: 150 mA typical / 300 mA maximum

• Power Supply Dropout Time: 10 ms

• Heat Dissipation: 68.8 W (with all 16 outputs active at 2A each)

• Block-to-Block Isolation: 1500 V

• Indicators (Block): Unit OK, I/O Enabled LEDs

• Indicators (Per Circuit): Individual load-side LEDs for each channel

• Dimensions (H × W × D): 22.44 cm × 8.89 cm × 10.00 cm

• Weight: 4 lbs (1.8 kg)

• Mounting Type: Panel or rack mounted

• Material: Industrial-grade aluminum housing

• Country of Origin: United States of America

• Availability: In stock

Key Features

• Provides digital I/O connectivity for GE Genius control systems

• Built-in visual diagnostics with per-channel and block-level LED indicators

• 1500V electrical isolation for enhanced safety and noise immunity

• Handles high-current loads up to 2A per output

• Fast response with stable voltage operation from 18–56VDC

• Compatible with GE Fanuc Mark I and Mark II systems

• Compact, rugged design for long-term industrial reliability

Applications

The IC660BBD021 Sink I/O Block is commonly used in:

• Distributed industrial automation systems

• GE Mark I / Mark II turbine and process control systems

• Machine control and motor management

• Manufacturing and energy applications requiring reliable digital I/O performance

FAQ

Q: What voltage range does the IC660BBD021 operate within?
A: It operates between 18 and 56 VDC, supporting both 24V and 48V configurations.

Q: Does this module include electrical isolation?
A: Yes, it features 1500V block-to-block isolation for added protection.

Q: How many outputs can be active simultaneously?
A: All 16 outputs can be active at 2A each, with total heat dissipation of 68.8 W.

Q: Which GE systems are compatible with this block?
A: It is designed for use with GE Mark I and Mark II control platforms.