PRODUCT INFORMATION
Product Overview
The Honeywell 900H32-0302 is a 32-channel digital output module designed for HC900 process automation systems. This module provides 32 current-sourcing high-side outputs across an operating range of 10.5 to 32 VDC. The outputs are split into two galvanically isolated groups of 16 channels to prevent ground loop interaction. Each channel supports up to 0.5 A continuous resistive load under rated operating temperatures.
Integrated protection includes active current limiting configured across four independent groups of eight outputs. Fault clearing occurs automatically without requiring an external power cycle or fuse replacement. Backplane power demands remain low, consuming 235 mA at 5 VDC and zero current at 24 VDC. External field connections require a dedicated 36-terminal Euro-style block mounted directly to the module front.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Outputs | 32 current-sourcing, high-side outputs |
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| Galvanic groups | Two isolated groups of 16 |
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| Operating voltage | 10.5–32 VDC |
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| Peak voltage | 32 VDC |
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| On-state voltage drop | 0.15 VDC at 0.5 A load |
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| Maximum load | 0.5 A per point, 6 A per group, 12 A per module for resistive load |
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| Lamp load | 0.25 A per point; 5 mH maximum |
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| Overload protection | Active limiting in four groups of 8; power cycling is not required |
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| Leakage current | 0.15 mA at 32 VDC |
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| Inrush current | 2 A for 10 ms |
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| Response time | 6 ms off-to-on and 6 ms on-to-off, excluding scan/backplane time |
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| Backplane load | 5 V at 235 mA; 24 V at 0 mA |
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| Dimensions | 137 mm high × 35.6 mm wide |
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| Weight | 180 g |
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| Terminal requirement | Euro-style 36-terminal block |
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| Channel restriction | Outputs 17–32 cannot be used for TPO, PPO, or TPSC |
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TECHNICAL INFORMATION
Features
- 32 current-sourcing high-side discrete outputs rated for 10.5 to 32 VDC operation.
- Two galvanically isolated channel groups of 16 outputs each.
- Active current overload limiting arranged in four groups of eight points.
- Automatic recovery from overload conditions without requiring field power interruption.
- Low backplane power draw of 235 mA at 5 VDC.
- High-density design utilizing a standard 36-terminal Euro-style connector block.
TECHNICAL INFORMATION
Applications
- HC900 process automation systems requiring high-density discrete output control.
- Switching 24 VDC field actuators, pilot lamps, intermediate relays, and solenoids.
- Distributed I/O rack installations requiring group-isolated DC sourcing circuits.
TECHNICAL INFORMATION
Connections / Interfaces
- Requires a removable Euro-style 36-terminal block for field wiring connection.
- Provides two isolated wiring groups with independent field power supply feeds.
- High-side sourcing topology delivers external DC power directly to grounded field loads.
TECHNICAL INFORMATION
Installation Guidelines
- Insert module into any available I/O slot in an HC900 rack enclosure.
- Ensure external field power is de-energized before seating or removing the terminal block.
- Maintain total module load at or below 12 A across all active output circuits.
TECHNICAL INFORMATION
Configuration Guidelines
- Channels 17 through 32 cannot be assigned to TPO, PPO, or TPSC pulse control blocks.
- Configure output state hold or de-energize behavior using HC900 system software during scanner communication loss.
- Calculate aggregate group load to ensure current remains below 6 A per 16-channel bank.
TECHNICAL INFORMATION
Compatibility
- Compatible with Honeywell ControlEdge HC900 controller racks and remote I/O scanners.
- Requires a 36-terminal Euro-style terminal block for wiring installation.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Honeywell ControlEdge HC900 controller racks and remote I/O scanners. Requires a 36-terminal Euro-style terminal block for wiring installation.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the maximum output current rating for the Honeywell 900H32-0302?
Each channel handles up to 0.5 A resistive load, with 6 A per group and 12 A total.
Can all channels on the 900H32-0302 module be used for pulse output functions?
No, outputs 17 through 32 cannot be used for TPO, PPO, or TPSC pulse configurations.
How does the 900H32-0302 handle overcurrent faults?
It uses active current limiting in four groups of eight channels. Power cycling is not required.
What type of terminal block is required for wiring this module?
The module requires a Euro-style 36-terminal removable block for all field I/O connections.
