Ranco J10-810 Vertical Wall Mount Dehumidistat 20-80% RH Range

The Ranco J10-810 is a line voltage dehumidistat designed to regulate relative humidity in confined spaces by automatically cycling dehumidifying equipment on and off. This vertical wall-mount control activates on a rise in humidity, making it ideal for applications requiring precise moisture control.

Key Features:

• Adjustable humidity range: 20% to 80% relative humidity
• Improved woven nylon sensing element provides 12 times faster response than film nylon elements
• SPST switch rated for 7.5 amps at 125VAC or 3.3 amps at 250VAC
• Switch-grade plastic frame eliminates the need for grounding
• Operating temperature range: 32°F to 140°F (0°C to 60°C)
• Differential: 5% to 15% RH (model dependent)
• High cycle ratings: 50,000 automatic cycles at 140°F, 6,000 manual cycles
• White finish with brushed dial plate for easy adjustment

Applications:

• Dehumidifiers for residential and commercial spaces
• Central HVAC humidity control systems
• Warehouses, storage facilities, and greenhouses
• Ventilation fans for confined spaces
• Materials processing environments
• Portable dehumidifier internal components

The J10-810 consists of a humidity sensing element, adjustable setpoint cam, and electrical switch. The sensing element changes length in response to relative humidity levels, moving the switch mechanism at the appropriate setpoints. Greater stability of setpoints ensures reliable performance even during dramatic changes in relative humidity.

Note: This is a dehumidistat (activates on rising humidity). For humidification control (activates on falling humidity), see model J10-821. Replaces Honeywell H46C1166.