Characteristics

Advantages

• 4 safety levels — Built-in temperature limiting sensor, connection terminals between control barriers and automatic and manual overload protection.
• Advanced electronic controls compatible with 4 control signals — 0-10 VDC, 2-10 VDC, 24 VDC PWM or 24 VAC control
• Modulating elements (SCR technology) — Accurate and stable temperature
• Multiple sensor options

FINISH

• 20 to 16 gauge galvanized steel cabinet resistant to corrosion

MANUFACTURING

• Junction box door
• Removable electric elements (optional)
• Double thermal protections (manual and automatic)
• Neoprene gasket (optional)
• Nema 4, Nema 4x and Nema 12 control box (optional)
• Stainless steel element housing (optional)

ELEMENTS

• Open, nichrome elements
• Tubular in Incoloy 800
• Modulation of the elements by SCR technology to maintain a constant temperature using only the required energy

CONTROL

• Built-in temperature limit sensor (TT option)
• Electronic air velocity sensor (P option)
• For more electronic control and card options, see the options and controls table
• Control voltage: 0-10 V, 2-10 V (4-20mA), 24Vac (PWM), 24Vdc
• Heater interlock included

INSTALLATION

• Round duct starting at 4 in. (SDHR model)
• Rectangular duct starting at 6 in. x 6 in. (SDHI and SDHF models)
• Vertical, horizontal, upflow or downflow position
• “Zero inch” clearance from flammable materials

WARRANTY

• Three years

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