Resideo L4008E1305/B High Limit Aquastat Controller Manual Reset 100-240°F

The Resideo L4008E1305/B is a manual reset high limit aquastat controller designed to protect hot water heating systems from dangerous temperature spikes. This high-limit protection controller is used in HVAC systems to regulate temperature and control power to equipment when it exceeds set limits.

Key Features:

• Remote temperature sensing element detects and responds rapidly to temperature changes
• Totally enclosed SPST Micro Switch™ snap-acting switch
• Visible control point scale and external adjustment screw permit easy setting
• Horizontal or vertical mounting of the remote element into boiler, tank, or other container
• Case mounts to a vertical surface

Technical Specifications:

• Operating temperature range: 100°F to 240°F with 66-inch capillary
• Switching action: SPST, contacts break on temperature rise
• Bulb size: 3/8 inch x 2-7/8 inch copper
• Capillary length: 66 inches
• Case dimensions: 5-5/8 inch high x 2 inch wide x 2-1/8 inch deep
• Electrical ratings: 0.25A @ 0.25 to 12 Vdc (millivolt), 8A @ 120 Vac

UL Component Recognized (File No. MP466) and CSA Certified (File No. LR95329-1), this controller provides reliable high-limit protection for residential and light commercial boiler and tank applications.