Product Introduction
In industrial automation, unexpected output failures can cause costly downtime. The Honeywell 900H32-0302 High Side Driver addresses this with robust overcurrent protection and fail-safe configuration. This 32-channel digital output module provides high-side current sourcing for DC loads, with galvanic isolation in two groups of 16 outputs. Each channel features a green LED status indicator, while a blinking green status LED signals normal scanning and a red LED indicates diagnostics. The module requires a Euro style 36-terminal terminal block.
Technical Specifications Breakdown
| Parameter |
Specification |
| Outputs per module |
32 (current sourcing, high side) |
| Galvanic Isolation |
2 groups of 16 outputs |
| Operating Voltage |
10.5 to 32 VDC |
| Output Type |
High side driver |
| Peak Voltage |
32 VDC |
| ON Voltage Drop |
0.15 VDC @ 0.5 A load |
| Overload Protection |
Active Current Limiting integrated as 4 groups of 8 channels each. Power cycling not required after fault. |
| Maximum Load Current |
0.5 A per point, 6 A max per group, 12 A max per module resistive; 0.25 A per point incandescent lamp (5 mH max) |
| Maximum Leakage Current |
0.15mA @ 32 VDC |
| Maximum Inrush Current |
2 A for 10 ms |
| Minimum Load |
0.0 mA |
| OFF to ON response time |
6 ms |
| ON to OFF response time |
6 ms |
| Fail Safe State configuration |
Yes (Hold Last State, Failsafe State) |
| Fuses |
Electronic limiting |
| Operating /Storage Temperature |
-40 to 70°C / -40 to 85°C |
The Honeywell 900H32-0302 integrates active current limiting in groups of eight channels, so a short circuit on any channel shuts off only that group without requiring a power cycle. This design minimizes system disruption and speeds recovery.
Industry Applications
The Honeywell 900H32-0302 High Side Driver excels in discrete control applications such as conveyor systems, packaging machinery, and material handling equipment. In a typical manufacturing line, this module drives solenoid valves and indicator lamps reliably, with its 0.5 A per point capacity handling most DC loads. The fail-safe configuration ensures that outputs revert to a safe state during communication loss, preventing unintended machine motion.
Maintenance & Reliability
Maintenance is simplified by the module's self-diagnostic LEDs. Green LEDs per channel indicate output status, while the blinking green status LED confirms normal scanning. A red status LED alerts operators to diagnostics, enabling quick troubleshooting. The electronic current limiting eliminates the need for fuse replacement, reducing spare parts inventory and downtime. The module operates reliably from -40°C to 70°C, making it suitable for harsh industrial environments.
Selection Guide & Purchasing Advice
Before purchasing the Honeywell 900H32-0302, verify your system voltage falls within 10.5–32 VDC and that you have a compatible 36-terminal Euro style terminal block. This module is a direct replacement for existing Honeywell high-side output modules in many DCS and PLC systems. For a reliable supply of genuine Honeywell parts, contact UBEST Automation at ubest101. Our inventory includes new and refurbished modules with fast worldwide shipping.