Honeywell 05701-A-0502 System 57 Control Rack Assembly

Product Overview

The Honeywell 05701-A-0502 comprises a specialized 6U high, half 19-inch wide control rack assembly engineered for the System 57 gas and safety monitoring architecture. This localized chassis provides the physical foundation and electrical backplane required to consolidate engineering cards, signal inputs, and control modules into a unified safety node.

We supply this assembly exclusively as a 100% brand new, original factory-sealed kit to ensure perfect backplane pin alignment and complete structural integrity for high-integrity industrial safety environments.

Technical Specifications

The system hardware integrates the following exact physical components and layout configurations:

Engineering Advantages

• Optimizes Tight Cabinet Layouts: The half 19-inch 6U footprint maximizes spatial efficiency inside crowded control cabinets. This compact format allows engineering teams to install multi-channel safety systems adjacent to existing PLC blocks without expanding the external enclosure footprint.

• Accelerates Termination and Loop Checks: The front-facing field wiring design eliminates the need to access the rear of the rack during commissioning. Field technicians terminate all sensor lines, power leads, and relay contacts directly from the front panel, significantly reducing startup hours and simplify troubleshooting.

• Guarantees Signal and Power Distribution Integrity: The included interconnecting cable and specialized DC input card work in tandem to eliminate inductive voltage drops across the backplane. This hardwired power architecture maintains clean voltage rails for every slotted engineering card, preventing channel-to-channel cross-talk and nuisance alarms.

FAQs

• What components ship inside this complete 05701-A-0502 kit?

  This kit provides a comprehensive out-of-the-box hardware solution. It contains the standard half-19 inch 6U sub-rack, the master engineering card, the dedicated DC input card, a module keying kit to prevent incorrect board insertion, and the necessary heavy-gauge interconnecting cable.

• How does the front field wiring layout affect installation depth requirements?

  Because all field terminations occur at the front face, you do not need wide maintenance clearances behind the rack frame. However, you must factor in the bend radius of your incoming multi-core field cables at the front of the 6U panel to ensure the cabinet outer door closes smoothly without stressing the terminal blocks.

• Does this brand-new unit require specific slot keying before inserting existing System 57 cards?

  Yes. You must use the included key kit to configure the mechanical slots to match your specific card layout (such as 5701 gas control cards). Mechanical keying prevents operators from accidentally sliding a card into the wrong slot during live operations, which safeguards internal electronics from mismatched pin voltages.