Description
Product Description
The Honeywell 05701-A-0327 is a dual-channel SPCO (Single Pole Change Over) relay card designed for Honeywell System 57 industrial automation and gas detection platforms. This module provides reliable and precise switching for safety-critical and process control applications. Each relay supports both normally open (NO) and normally closed (NC) contacts, offering versatile integration with alarms, actuators, and other control devices. An integrated fault relay ensures immediate alert in case of malfunction.
Technical Specifications
| Specification |
Details |
| Relay Type |
Double SPCO (Each relay has NO + NC contacts) |
| Number of Relays |
2 Independent Channels |
| Operating Voltage |
24V AC/DC or 120V AC |
| Switching Accuracy |
±0.05% Full-Scale |
| Fault Relay |
Built-in single-pole relay triggers alarm on failure |
| Dimensions |
12.7 × 5.1 × 12.7 cm (5 × 2 × 5 in) |
| Weight |
1.2 kg |
| Operating Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Durability |
Shock and vibration resistant, industrial-grade construction |
Key Features & Advantages
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Dual independent SPCO relays for flexible switching
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Fault relay ensures safety monitoring and alarm activation
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Supports multiple voltage systems: 24V AC/DC and 120V AC
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Rugged construction withstands harsh industrial conditions
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Compact and lightweight design for easy integration in System 57 racks
Applications
The Honeywell 05701-A-0327 is suitable for:
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Gas detection and monitoring racks
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Safety-critical control systems
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Industrial process automation requiring redundant relay switching
FAQ
Q: Can this card be used in modern Experion PKS systems?
A: No, it is primarily designed for Honeywell System 57 platforms. Compatibility with newer systems is limited.
Q: How many devices can this relay card control?
A: Each card provides two independent relays. For larger applications, multiple cards are required.
Q: Is the module still widely available?
A: It is considered legacy and mostly available through surplus or secondary suppliers. Always verify condition before purchase.
Q: Are the relays rated for high current switching?
A: Yes, relays can handle standard control voltages up to 120V AC with industrial switching reliability.
