Honeywell 05704-A-0123 System 57 Hex Relay Interface Card
The Honeywell 05704-A-0123 is a Hex Relay Interface Card engineered for the Honeywell System 57 / 5704F fire and gas detection platform. It provides six independent relay outputs to drive external alarms, shutdown logic, and control signals across industrial process safety environments.
Signal Switching and Contact Ratings
The card features six single-pole changeover (SPCO) relay outputs rated for up to 5 A at 110/250 VAC or 5 A at 32 VDC (non-inductive). This configuration enables reliable, isolated switching between internal detection logic and field alarm equipment or emergency shutdown systems.
System Integration and Power Performance
Designed for direct installation into a System 57 rack enclosure, the module operates from an 18–32 VDC power supply with a typical power consumption of 1.7 W (2.4 W maximum). Its compact footprint measuring 132 × 25 × 119 mm and weight of 240 g support easy system maintenance and card replacement.
| Parameter | Specification |
|---|---|
| Model | 05704-A-0123 |
| Brand | Honeywell Analytics |
| Product Series | System 57 / 5704F |
| Product Type | Hex Relay Interface Card |
| Relay Outputs | 6 × SPCO (Single-Pole Changeover) |
| Relay Contact Rating (AC) | 5 A at 110/250 VAC, non-inductive |
| Relay Contact Rating (DC) | 5 A at 32 VDC, non-inductive |
| Power Supply | 18-32 VDC |
| Power Consumption | 1.7 W typical / 2.4 W maximum |
| Mounting | System 57 Rack Installation |
| Dimensions | 132 × 25 × 119 mm |
| Weight | 240 g |
Frequently Asked Questions
Q: What is the main function of the Honeywell 05704-A-0123 card? A: It provides six independent SPCO relay outputs to interface fire, gas, and fault signals from System 57 controllers to external control and alarm equipment.
Q: What are the contact voltage and current ratings for the relays? A: Each relay contact is rated for 5 A at 110/250 VAC or 5 A at 32 VDC under non-inductive loads.
Q: How is the card installed and powered? A: It mounts directly into a System 57 rack slot and receives power from an 18-32 VDC supply.
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