Honeywell 51303968-100 CMOS Backup Assembly Board

Description

The Honeywell 51303968‑100 CMOS Backup Assembly Board is a dedicated memory backup module designed to safeguard volatile RAM data in Honeywell C300 controllers. It integrates a sealed lithium battery to maintain configuration and process data during power interruptions.

Specifications

• Manufacturer: Honeywell
• Model: 51303968‑100
• Product Type: CMOS Backup Assembly Board
• Function: Provides RAM backup during power loss
• Battery Type: Sealed lithium battery (non‑replaceable)
• Nominal Voltage: 24 V input
• Cut‑in Voltage: 19 V
• Input Current: ~50 mA at 24 V
• Expected Battery Life: 3–5 years depending on environment
• Operating Temperature: –40 °C to +60 °C

Features

• Integrated Battery: Maintains controller RAM data during outages
• Fail‑safe Design: Automatic switchover to backup power on loss of supply
• Sealed Construction: Battery is non‑replaceable, requiring full module replacement at end of life
• Long Service Life: 3–5 years typical battery endurance
• Industrial Durability: Designed for harsh operating environments
• Controller Compatibility: Supports Honeywell C300 controllers

FAQ – Common Questions

Q: What is the purpose of the 51303968‑100 board? A: It provides CMOS RAM backup for Honeywell C300 controllers during power loss.

Q: Does the module have a replaceable battery? A: No, the lithium battery is sealed; the entire module must be replaced when the battery expires.

Q: How long does the battery last? A: Typically 3–5 years depending on temperature and usage.

Q: What happens if the battery fails? A: Volatile RAM data may be lost; replacement is required to restore backup capability.

Q: Is the module certified for industrial use? A: Yes, it carries CE and UL approvals.