ID
1259222
$ 96.53
1-2 weeks delivery time
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The Rule 37A automatic float switch controls a pump by switching on at a 51 mm water level and switching off at 19 mm. It is mercury-free, corrosion-resistant, and uses long-life seals with waterproof grommet protection and blocked wiring. The unit has a detachable mounting base and supports pumps up to 20A (12V), 10A (24V), and 6.5A (32V); listed dimensions include 5.7 cm (H) x 12.7 cm (L) x 5.1 cm (W) and 105 mm (L) x 40 mm (W) x 110 mm (H at maximum lift), with product weight 0.19 kg.
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Rule 37A Automatic Bilge Pump Float Switch
The Rule 37A is a float-operated switch designed to provide automatic pump control in marine environments. It starts the pump when the water level rises to the set point and stops it when the level drops, helping manage bilge water while reducing rapid on/off cycling. The corrosion-resistant, mercury-free design and detachable mounting base support installation and servicing in tight spaces.
Technical Specifications
Supplier Code 37A Order Number 00304483 Barcode 042237095497 Switching Level (On) 51 mm (2 inch) Switching Level (Off) 19 mm (3/4 inch) Maximum Current 20A (12V) / 10A (24V) / 6.5A (32V) Operating Voltage 12V / 24V / 32V systems (also listed as compatible with 12–24V) Dimensions (Set 1) Height 5.7 cm, Length 12.7 cm, Width 5.1 cm Dimensions (Set 2) 105 mm long, 40 mm wide, 110 mm high (at maximum lift) Mounting Hole Diameter 3.2 cm (1.25 inches) Temperature Range -10 C to 60 C (14 F to 140 F) Material High-strength plastic and stainless steel components Product Weight 0.19 kg Shipping Weight 0.40 kg Packed Weight (Approx.) 0.39 kg Packaged Dimensions 14.00 x 7.00 x 6.00 cm
Compatibility
- Pumps drawing up to 20A at 12V
- Pumps drawing up to 10A at 24V
- Pumps drawing up to 6.5A at 32V
Features
- Automatic operation: switches on at 51 mm and off at 19 mm water level
- Corrosion-resistant construction with long-life seals
- Waterproof grommet protection and blocked wiring (as listed)
- Mercury-free design
- Detachable mounting base for installation, cleaning, and inspection
- Can be mounted loose or on a bilge pump (as listed)
- Designed to prevent rapid on/off cycling (as listed)
Product Details
This switch is intended for automatic bilge pump control on boats, yachts, and other marine vessels, and is described as suitable for both fresh and saltwater environments.
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