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Staged Environment Control (SEC-HD)

A competitively priced control with heavy-duty relays

The Staged Environment Control (SEC-HD) automatically controls the temperature in a room by operating two variable speed fans and up to three single-speed fans or heaters.

To control the temperature, the SEC-HD operates the connected ventilation and heating equipment according to programmed settings. The SEC-HD comes with seven factory-configured operating programs, which can be easily reconfigured for your ideal situation.

The SEC-HD displays alert conditions such as high and low temperatures, power failure, and low line voltage, and can also connect to an alarm siren, alarm panel, or auto-dialer.

The SEC-HD is ideal for poultry, livestock, greenhouse, or light-industrial buildings.

Features

• Two variable stages
• Three heavy-duty relay stages
• Alarm relay
• Seven configurable operating programs
• Adjustable temperature set-point
• Adjustable temperature differential
• Adjustable high/low temperature alert settings
• Three-second full-power-turn-on to minimize fan ice-up
• Power-failure memory protection
• Four-digit LED display and status LEDs
• Fahrenheit and Celsius display
• Error code display for troubleshooting
• 30-foot temperature probe, extendable to 500 feet
• Overload protection fuses
• Rugged enclosure (corrosion resistant, water resistant, and fire retardant)
• CSA approval
• Two-year limited warranty

Electrical ratings

Input: Variable stages: Variable stage fuses: Relays: Relay fuses: Alarm relay:

120/230 VAC, 50/60 Hz 10 A at 120/230 VAC, general-purpose (resistive) 7 FLA at 120/230 VAC, PSC motor 1/2 HP at 120 VAC, 1 HP at 230 VAC, PSC motor 15 A, 250 VAC ABC-type ceramic 6 A at 120/230 VAC, general-purpose (resistive) 1/3 HP at 120 VAC, 1/2 HP at 230 VAC 360 W tungsten at 120 VAC 12 A, 250 VAC ABC-type ceramic 0.4 A at 125 VAC; 2 A at 30 VDC, resistive load 0.2 A at 125 VAC; 1 A at 30 VDC, inductive load

Additional information

• SEC-HD user manual (PDF - 1000K)
• SEC-HD feature sheet (PDF - 124K)
• Ventilation control overview (PDF - 35K)

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