Excellent PLC
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Overview
The Honeywell 900H01-0001 Relay Output Module is part of the ControlEdge HC900 series, designed for industrial process control applications. It provides 8 channels of relay-based digital outputs with both Form A and Form C contacts. This module ensures galvanic isolation and is ideal for switching moderate power loads, including resistive and lamp loads.
Technical Specifications
| Parameter | Description |
|---|---|
| Module Type | Relay Output Module |
| Channels | 8 (4 Form A + 4 Form C) |
| Contact Type | Electromechanical |
| Output Voltage | 120/240 VAC, 30 VDC |
| Current Rating | 4 A @ 240 VAC / 30 VDC (resistive load) 0.5 A @ 240 VAC / 30 VDC (lamp load) |
| Max Leakage Current | 1 mA @ 350 VDC |
| Galvanic Isolation | Relay-to-relay and relay-to-logic |
| Response Time (OFF to ON) | ≤11 ms |
| Response Time (ON to OFF) | ≤8 ms |
| Life Expectancy | 50 million (mechanical), 100k (electrical) |
| Power Consumption | 5V: 110 mA max, 24V: 100 mA max |
| Dimensions | 137 x 35.6 x 137.16 mm |
| Weight | 0.425 kg |
Applications
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Distributed I/O systems in process automation
-
On/off control of pumps, motors, solenoids
-
Interfacing with alarms, lamps, and indicators
-
Switching of high-voltage discrete signals
-
Industrial furnace or kiln controls
Advantages
-
Galvanic Isolation: Protects control system from external disturbances
-
Mixed Relay Types: Offers flexible control with both Form A and Form C
-
Hot Swap Support: Can be inserted/removed under power without affecting operations
-
Robust Design: Designed for high lifecycle operation in harsh environments
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Diagnostics Indicators: Channel and module status LEDs simplify troubleshooting
FAQs
Q1: How many relay channels are provided?
A1: The module includes 8 relay channels—4 Form A and 4 Form C.
Q2: What is the maximum voltage and current supported per channel?
A2: 240 VAC or 30 VDC at 4 A for resistive loads.
Q3: Can this module be inserted or removed while powered?
A3: Yes, it supports hot-swap capability under controller power.
Q4: What is the typical mechanical life of the relays?
A4: 50 million cycles under standard conditions.
Q5: Is the module suitable for lamp loads?
A5: Yes, it supports up to 0.5 A at 240 VAC or 30 VDC for lamp loads.
Q6: Does it provide channel-specific fault indication?
A6: Yes, each channel has a green LED indicator; module status is shown with red and amber LEDs.
Q7: Is there galvanic isolation between channels?
A7: Yes, each relay output is galvanically isolated from the others and from the logic.
Q8: What field terminal types are compatible?
A8: Both barrier and Euro-style terminal blocks are supported.
Q9: What is the typical use in a process control environment?
A9: Used for switching loads such as valves, motors, alarms, and contactors.
Q10: Are the relay outputs fused internally?
A10: No, fuses should be installed externally at the field devices.
Related Models (Same Series)
| Model | Description | Channels | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 900H02-XXXX | Digital Output, DC Type | 16 | 137 x 35.6 x 137.16 | 0.18 kg |
| 900H03-0202 | Digital Output, 120/240 VAC | 8 | 137 x 35.6 x 137.16 | 0.23 kg |
| 900G01-0202 | Digital Input, Contact Type | 16 | 137 x 35.6 x 137.16 | 0.354 kg |
| 900G03-0202 | Digital Input, 120/240 VAC | 16 | 137 x 35.6 x 137.16 | 0.210 kg |
| 900B01-0301 | Analog Output, 4 Ch | 4 | 137 x 35.6 x 137.16 | 0.408 kg |
| 900A01-0202 | Analog Input, Universal | 8 | 137 x 35.6 x 137.16 | 0.210 kg |
Popular Honeywell Models
| Model | Description | Function | Dimensions (mm) | Weight |
|---|---|---|---|---|
| 8C-PCNT01 | C300 Controller | Processor | 150 x 40 x 150 | ~0.5 kg |
| 8C-PAONA1 | Analog Output Module | Output | 150 x 40 x 150 | ~0.4 kg |
| 8C-PAIMA1 | Analog Input Module | Input | 150 x 40 x 150 | ~0.4 kg |
| 8C-PDODA1 | Digital Output Module | Output | 150 x 40 x 150 | ~0.3 kg |
| 8C-PDILA1 | Digital Input Module | Input | 150 x 40 x 150 | ~0.3 kg |
| FC-IO-0001 | I/O Extension Module | I/O | 137 x 35.6 x 137.16 | ~0.5 kg |
