Xylem 309100 McDonnell & Miller No. 11 Replacement Switch for Low Water Cut-Offs

The Xylem 309100 is a McDonnell & Miller Model No. 11 automatic reset switch designed as a replacement component for low water cut-off systems in boiler applications. This switch is compatible with 24, 120, or 240-volt power supplies, making it versatile for various HVAC installations.

Key Features:

• Compatible with Series 61, 64, 67, 69, 764, and 767 low water cut-offs
• Contains two single-pole single-throw switches to control a water feeder or a low water alarm and the low water cut-off
• Automatic reset functionality for reliable operation
• Multi-voltage capability for flexible installation requirements
• Engineered by McDonnell & Miller, a trusted Xylem brand specializing in boiler controls

This replacement switch is essential for maintaining proper low water cut-off system operation, ensuring safe and reliable boiler performance. The dual switch design provides comprehensive protection by controlling both alarm and shut-off functions.