• High limit opens burner circuit only.
• Include transformer and accessory terminals for adding a remote low limit controller.
• Case available for horizontal or vertical mounting.
• Requires a 24 Vac thermostat with heat anticipator set at 0.2A.
• TRADELINE models include well adapter, tube of heat conductive compound and range stops.L8148J1009 Aquastat Relay, SPST: High Limit and CirculatorSetpoint Temperature Range (F) | 240 F |
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Overview | Immersion-type controllers that combine high limit protection with switching relay control of burner and circulator motors. |
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Setpoint Temperature Range (C) | 116 C |
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Operating Range, High Limit (F) | 120 F to 240 F |
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Maximum Safe Operating Pressure (psi) | Immersion Well: 255 psi |
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Operating Range, High Limit (C) | 54 C to 116 C |
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Maximum Safe Operating Pressure (kPa) | Immersion Well: 1757 kPa |
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Electrical Ratings | Low Voltage-0.8 A max. @ 24 Vac; Millivolt--0.25 A @ 1/4 to 12 Vdc |
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Application | Aquastat Relay |
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Electrical Ratings (burner AFL) | 7.4 A @ 120 Vac |
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Electrical Ratings (burner ALR) | 44.4 A @ 120 Vac |
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Electrical Ratings (burner millivolt) | 0.25 A @ 1/4 to 12 Vdc |
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Electrical Ratings (circulator AFL) | 7.4 A @ 120 Vac |
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Electrical Ratings (circulator ALR) | 22.2 A @ 240 Vac |
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Switching Action | SPST: High Limit & Circulator |
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Operating Temperature Range (F) | High Limit-- 120 F to 240 F |
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Operating Temperature Range (C) | High Limit-- 54 C to 116 C |
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Capillary Length (in.) | 4 1/2 in. |
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Dimensions (in.) | Vertical Mount: 6 1/8 in. high x 4 5/16 in. wide x 3 1/8 in. deep |
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Dimensions (mm) | Vertical Mount 156 mm high x 110 mm wide x 79 mm deep |
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Insulation Depth (in.) | 1 1/2 in. to 3 in. less well. |
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Insulation Depth (mm) | 38 mm to 76 mm less well |
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Operating Humidity Range (% RH) | 0 to 95% RH, non-condensing |
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Electrical Connections | Quick-Connect / Screw |
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Differential Temperature (F) | 8 F fixed |
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Maximum Ambient Temperature (F) | 150 F with 1.2 A 24 V load; 77 F with 1.4 A 24 V load |
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Maximum Ambient Temperature (C) | 66 C with 1.2 A 24 V load; 25 C with 1.4 A 24 V load |
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Mounting | Horizontal or Vertical |
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Approvals, Underwriters Laboratories Inc | UL Listed: File No. MP466, Vol. 13, Sec. 2, Guide No. MBPR2. |
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Approvals, Canadian Standards Association | Certified: File No. LR1620, Guide No. 400-E-O |
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Capillary Length (mm) | 114 mm |
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Product Family
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