Honeywell 900H03-0202 8-Channel Triac AC Output Module

Honeywell 900H03-0202 AC Digital Output Module

The 900H03-0202 is an 8-channel solid-state AC output module for the Honeywell HC900 controller. It provides reliable switching for AC loads such as heaters, solenoids, and contactor coils with built-in protection.

Core Technical Specifications

• Brand: Honeywell
• Model Number: 900H03-0202
• Product Type: Digital Output (DO) Module, AC Voltage
• Outputs per Module: 8 Channels
• Output Device: Triac (Zero-Voltage Switching)
• Operating Voltage Range: 85 VAC to 240 VAC
• Peak Voltage Rating: 250 VAC
• AC Frequency Range: 47 Hz to 63 Hz
• Galvanic Isolation: Per Output-to-Output, Output-to-Logic
• Maximum Load Current: 2 A per Point, 8 A Maximum per Module (Resistive Load)
• Minimum Load Current: 50 mA
• Maximum Inrush Current: 15 A for 10 ms
• Maximum Leakage Current: 4 mA (@240V AC, 60Hz), 1.2 mA (@100V AC, 60Hz), 0.9 mA (@100V AC, 50Hz)
• ON Voltage Drop: < 2.0 VAC (>0.1 A), < 3.0 VAC (<0.1 A)
• OFF to ON Response Time: 3 ms + 0.5 Line Cycle Max.
• ON to OFF Response Time: 3 ms + 0.5 Line Cycle Max.
• Transient Overvoltage Protection: MOV (Metal Oxide Varistor) per Output
• Fuse Protection: 1 per Output, 3.15 A Time-Lag (Littelfuse 37413150410 or equivalent)
• Fail-Safe Modes: Hold Last State, User-Defined Failsafe State
• Shorting Comb: Available (P/N 900J02-0001 / 900J10-0001) for Common Voltage Source Wiring
• Channel Status Indicator: Green LED per Channel (ON when output is active)
• Module Status LED: Green Blinking (Active Scan), Red (Fault/Diagnostic)
• Operating Temperature: 0°C to +60°C (Standard HC900 Range)

Module Features & Protection

• Zero-crossing Triac switching minimizes electromagnetic interference (EMI) and extends load life.
• Full isolation between each output and from controller logic enhances system safety and noise immunity.
• Integrated MOV protects against voltage spikes and transients on the AC line.
• Field-replaceable fuses (3.15A time-lag) protect each output from overload and short-circuit conditions.
• Shorting comb accessory simplifies wiring when all outputs share a common AC voltage source.
• Configurable failsafe operation ensures predictable behavior during communication loss or system fault.
• Low leakage current minimizes energy waste and prevents unintended activation of sensitive loads.

Installation & Wiring Guidelines

• Install in a compatible Honeywell HC900 rack. Ensure the AC line voltage is within 85-240V AC.
• Use appropriate wire gauge for the load current (up to 2A per channel).
• For inductive loads (solenoids, contactors), consider using an external snubber circuit to reduce EMI.
• When using the shorting comb, connect the common AC source to the comb and then to the barrier terminal block.
• Replace blown fuses only with the specified 3.15A time-lag type (e.g., Littelfuse 37413150410).
• Observe the minimum load requirement of 50 mA; for smaller loads, a parallel load resistor may be necessary.
• Ensure proper heat dissipation; do not exceed the total module current rating of 8A.

Typical Applications

• Switching resistive heating elements.
• Controlling solenoid valves and AC contactor coils.
• Activating fans, pumps, and small AC motors.
• General-purpose AC power control in industrial processes.

For fuse specifications or to order the Honeywell 900H03-0202, contact our technical sales team.

Contact: Email sales@nex-auto.com or WhatsApp +86 153 9242 9628.

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