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Since Tuesday, 02/23/2021 04:00
Eastern Time Zone

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Stelpro > Furnaces and HVAC > Duct Heaters > SDHR-SDHx

Round and Custom Duct Heaters

Made-to-order comfort

SDHR-SDHx

As practical as they are efficient, duct heaters supply the energy required to raise a room's temperature to the desired setpoint. Their modulation system and temperature sensor deliver precise and efficient performance, while their modular design makes for easy installation and maintenance. Customize your ventilation system with our standard or custom duct heaters.

Product images

  • SDHX | AMBIANCE2
  • SDHX | AMBIANCE1
  • SDHx | 3PRODUCTS
  • SDHR | ANGLE
  • SDHR | FACE
  • SDHI | ANGLE
  • SDHI | FACE
  • SDHF | ANGLE2
  • SDHF | FRONT2
  • SDHF | ANGLE
  • SDHF | FACE

Advantages

  • 4 safety levelsBuilt-in temperature limiting sensor, connection terminals between control barriers and automatic and manual overload protection.
  • Advanced electronic controls compatible with 4 control signals0-10 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
SpecsheetDownload the product specsheet containing product specs and other useful information
Installation guideDownload the product installation guide
SpecificationsDownload the product specifications
SDHR Shop drawingsDownload the SDHR shop drawings
SDHx Shop drawings Download the SDHx shop drawings
Revit filesDownload the product revit files

Filter results using the options below
Accessories
Code Description
D010 24 V thermostat
ET120 0-10 V electronic thermostat (Celsius only)
ET180 24 V electronic thermostat (Celsius only)

Code Description
BREA-001 CIRCUIT BREAKER 120/240V 30A 2P
BREA-002 CIRCUIT BREAKER 120/240V 40A 2P
BREA-003 CIRCUIT BREAKER 120/240V 50A 2P
CONT-3002 CONTACTOR 2P/24V/30A RESISTIVE
CONT-3503 CONTACTOR 3P/24V/35A RESISTIVE
CONT-5002 CONTACTOR 2P/24V/50A RESISTIVE
CONT-5003 CONTACTOR 3P/24V/50A RESISTIVE
CONT-5099 AUXILIARY CONTACT 15A/600V SERIES 42
KIT-SDH-CIR-011 P REPLACEMENT KIT CIR-011 P, PRE-PROGRAMMED MULTIFONCTIONAL BOARD, 9 OUTPUT
KIT-SDH-CIR-017 P REPLACEMENT KIT CIR-017 P, PRE-PROGRAMMED MULTIFONCTIONAL BOARD. AC/DC 5 OUTPUTS
KIT-SDH-CIR-047 REPLACEMENT KIT CIR-047, PRE-PROGRAMMED MULTIFONCTIONAL BOARD
KIT-SDH-CIR-048 REPLACEMENT KIT CIR-048, PRE-PROGRAMMED MULTIFONCTIONAL BOARD
KIT-SDH-REL-016 REPLACEMENT REL-016, SSR RELAY 600V 25A, 4-32VDC CONTROL
KIT-SDH-REL-017 REPLACEMENT REL-017, SSR RELAY 600V 50A, 4-32VDC CONTROL
KIT-SDH-REL-018 REPLACEMENT REL-018, SSR RELAY 600V 25A, 4-32VDC AND 20-250VAC CONTROL
KIT-SEN-004 REPLACEMENT KIT SEN-004, NTC TEMPERATURE SENSOR WITH 5' CABLE
KIT-SEN-005 REPLACEMENT SEN-005 KIT, SDH A.S. SENSOR
KIT-SEN-012 REPLACEMENT SEN-012 KIT, SDH A.S. SENSOR, IN TWO PARTS, CABLE IS 15' LONG
KIT-SEN-013 REPLACEMENT SEN-013 KIT, SDH TEMP SENSOR, GREY CABLE 2/20AWG , CABLE IS 15' LONG
KIT-SEN-016 REPLACEMENT SEN-016 KIT, ELEMENT TEMPERATURE SENSOR
KIT-SEN-017 REPLACEMENT SEN-017 KIT, CIR-011 TEMP SENSOR, CABLE IS 15' LONG
KIT-SWI-019 REPLACEMENT KIT SWI-019, AFS DIFFERENTIAL PRESSURE SWITCH
LUG-002 LUG 50-125A #8-1 AWG CU/#6-1/0 AWG AL
LUG-003 LUG 10-45A #14-6 AWG CU/#12-6 AWG AL
LUG-005 GROUND LUG, FOR 2/0 AWG, MOUNTING HOLE 1/4"
PL-001 PILOT LIGHT 24V (GREEN) 10'' STRIP 1/2 ''
PROT-004 THERMAL PROTECTION L130-30F
PROT-006 THERMAL PROTECTION L150-40F
PROT-019 THERMAL PROTECTION L140-5F (CLOSE 100F-8)
PROT-022 THERMAL PROTECTION, L-115-20°F, 60T11, Automatic Reset, Horizontal Connector
PROT-023 THERMAL PROTECTION, L-135°F, 60TX15, Manual Reset, Vertical Connector
PROT-032 THERMAL PROTECTION, L-110-20°F, 60T11, Automatic Reset, Horizontal Connector
PROT-035 THERMAL PROTECTION, L-125°F, 60TX15, Manual Reset, Vertical Connector
PROT-038 THERMAL PROTECTION, L-140°F, 60TX15, Manual Reset
PROT-039 THERMAL PROTECTION, L-175°F, 60TX15, Manual Reset
REL-003 24VAC RELAY FORM C 1NO 20A/1NC 10A (PANEL MOUNT)
REL-006 RELAY 1 POLE 23A/250VAC 24VDC
REL-017 SCR RELAY 600V 50A, 4-32VDC CONTROL
REL-021 RELAY DOUBLE POLE 250VAC 23A 24VDC
SEQ-003 SEQUENCER RELAY SP 24V (H40-90/C1-30)
SWI-027 MOTOR SWITCH 600V/30A, 2 POLES LEVITON MS302-DSS
TB-006-2 TERMINAL BLOCK #327 600V/65A (2 TERMINALS)
TB-007-2 TERMINAL BLOCK #324 500V (2 TERMINALS)
TB-007-3 TERMINAL BLOCK #324 500V (3 TERMINALS)
TB-007-4 TERMINAL BLOCK #324 500V (4 TERMINALS)
TB-007-5 TERMINAL BLOCK #324 500V (5 TERMINALS)
TB-007-6 TERMINAL BLOCK #324 500V (6 TERMINALS)
TRF-032 TRANSFORMER 120/208/240/277/480 24V 96VA CL2
TRF-038 TRANSFORMER 480/24/40VA CL2
TRF200040D TRANSFORMER 208-240/24/40VA CL2
TRF600040 TRANSFORMER 600/24/40VA CL2
TRF600040TL TRANSFORMER 600/24/40VA CL2 WITH TERMINALS
TRF600100 TRANSFORMER 600/24/100VA
MUAA
Make-Up Air Unit
SFEX-SFECM
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