Overview
Controls high limit and fan motors in forced air heating systems.
Features
- Three wiring terminal options available for easy installation.
- Push-in receptacles for stripped wire.
- Female receptacles for 1/4 inch male flag connectors.
- Auxiliary screw terminals.
- Field adjustable fan and high limit settings.
- L4064B,W, and R models have a manual fan switch that overrides the fan control to keep the fan running continuously.
- TRADELINE models with mounting adapters for easy installation and strain relief bushings to protect wiring from field abuse..
Product Specifications
- Application
- Forced warm air heating systems
- Dimensions (in.)
- 4 9/32 in. high x 3 in. wide x 1 19/32 in. deep excluding element
- Dimensions (mm)
- 109 mm high x 76 mm wide x 40 mm deep excluding element
- Comments
- Turns fan on and off according to plenum temperature via helical bimetal sensing element. High limit stop set at 200F (93 C). Breakaway Jumper included. Includes manual and automatic fan on/off settings. Replaces L4064A,B,E.
- Item Type
- Product
- Mounting
- Surface or universal mounting bracket available (50077438-001/U)
- Electrical Ratings
- Fan- (AFL)-- 14 A @ 120 Vac: 7 A @ 240 Vac; Fan- (ALR)-- 84 A @ 120 Vac: 42 A @ 240 Vac; Limit- (AFL)-- 8 A @ 120 Vac: 4 A @ 240 Vac; Limit- (ALR) 48 A @ 120 Vac: 24 A @ 240 Vac
- Approvals, Underwriters Laboratories Inc.
- Listed File MP466, Guide MBPR
- Approvals, Canadian Standards Association
- Certified: File No. LR1622
- Tradeline Value
- Tradeline
- Temperature Ratings (C)
- Maximum Ambient-- At switch 88 C: At element: 177 C; High Limit-- 38 C to 121 C; Fan-on-- 18 C to 102 C; Fan-off-- 10 C to 93 C
- Temperature Ratings (F)
- Maximum Ambient-- At switch: 190 F: At element: 350 F; High Limit-- 100 F to 250 F; Fan-on-- 65 F to 215 F; Fan-off-- 50 F to 200 F; High Limit Stop-- 200 F; Fan-on Stop-- 125 F; Fan-off Stop-- 100 F
- Operating Temperature Range (F)
- -40 F to +190 F
- Operating Temperature Range (C)
- -40 C to +88 C
- Differential Temperature (F)
- High limit 25 F
- Differential Temperature (C)
- High limit 14 C
- Switching Action
- Fan switch makes and high limit switch breaks on temperature rise.
- Element Insertion Length (in.)
- 11 1/2 in.
- Element Insertion Length (mm)
- 292 mm
- Pilot Duty Ratings
- 0.25 A @ 0.25 to 12 Vdc; 2 A @ 24 Vac
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