GE IC660BBD100 I/O Block | 115 VAC 8-Circuit Genius

This I/O block handles AC voltage signals for GE Genius distributed control networks. It interfaces directly with field devices such as limit switches and pilot lights. Therefore, it provides reliable AC input and output capabilities for factory automation systems.

Technical Specifications of GE IC660BBD100

Parameter	Specification
Brand	General Electric (GE)
Full Model	IC660BBD100
Category	Grouped I/O Block (115 VAC)
Dimensions (L x W x H)	23.0 cm x 12.5 cm x 7.5 cm (9.06″ x 4.92″ x 2.95″)
Block Weight	0.85 kg (1.87 lbs)
Network Interface	1 x Genius Bus (Terminal Block or D-Sub)
Total Circuits	8 Grouped Circuits (Configurable)
Input Circuits (Max)	8 (All Configurable as Inputs)
Output Circuits (Max)	8 (All Configurable as Outputs)
Mixed Configuration	Any Combination (e.g., 4 In / 4 Out)
Input Voltage Range	85 to 132 VAC (47 to 63 Hz)
Input On-State Voltage	> 74 VAC
Input Off-State Voltage	< 20 VAC
Input Impedance	12 kΩ (Typical)
Input Response Time (On)	25 ms (Maximum)
Input Response Time (Off)	45 ms (Maximum)
Output Type	Triac (Zero-Crossing Switching)
Output Voltage Range	24 to 132 VAC (47 to 63 Hz)
Output Current per Circuit	2.0 A (Continuous), 3.5 A (1 Second Surge)
Output Leakage Current	2.5 mA (Maximum at 132 VAC)
Output Response Time (On)	0.5 AC Cycle + 1 ms (Typical)
Output Response Time (Off)	0.5 AC Cycle + 1 ms (Typical)
Group Common	Shared Neutral Terminal (All Circuits)
On-Board Components	8 Optocouplers + 8 Triacs + 1 Microcontroller + 1 Genius Transceiver
Energy Storage	3 x 1000 µF Electrolytic Capacitors (35V) + 1 x 470 µF (16V)
Operating Voltage	24 VDC (from Genius Bus Power, 150 mA)
Isolation Rating	1500 Vrms (Field to Logic)
Fuse Protection	1 x 10A Fast-Blow (External)
Operating Temperature	0°C to +60°C (32°F to 140°F)
Mounting Type	DIN Rail (EN 50022) or Panel Mount
Status Indicators	8 Red LEDs (Per Circuit) + 1 Green LED (Power/Comm)

Energy Storage and AC Switching Stability

The GE IC660BBD100 stores energy using four electrolytic capacitors. Three large capacitors filter the 24 VDC supply for the microcontroller. The fourth capacitor provides hold-up energy for the Genius transceiver during bus arbitration. Consequently, this block maintains stable AC switching even with noisy line conditions.

Grouped Circuit Configuration and Flexibility

You can configure any combination of inputs and outputs across the eight circuits. Each circuit uses an optocoupler for input sensing or a triac for AC output switching. A shared neutral terminal connects all eight circuits to the same return path. Thus, this block reduces wiring complexity for grouped AC loads.

Installation and Status Monitoring

You will find eight red LEDs positioned near each circuit terminal. A green LED at the top indicates network communication and power status. The block includes a locking lever for secure DIN rail attachment. Thus, it fits seamlessly into any standard Genius distributed I/O network.