Specification

Features
• Patent pending snap switch design
• Snap switch tested to over 1,000,000 cycles @ 12V
• Highly abrasion resistant marine grade blocked wire
• Exclusive moisture tight seals
• Environmentally friendly mercury free design.
Models
Model Description Max. Current
@ 12V DC
35A Rule-a-Matic 14A
35FA Rule-a-Matic with fuse holder 14A
37A Super Switch 20A
37FA Super Switch with fuse holder 20A
40A Rule-a-Matic covered switch 20A
40FA Rule-a-Matic covered switch 20A
with fuse holder
Installation Instructions
The Rule-a-Matic, Super Switch, and Rule-a-Matic Plus
float switches are suitable for any submersible bilge
pump with an operating current rating as listed below.
Maximum Current Rating
Voltage Rule-a-Matic Super Switch /
Rule-a-Matic Plus
12V 14A 20A
24V 7A 10A
32V n/a 6.5A
All switches will turn the pump on when the water level
reaches 2” (51mm) and will turn the pump off when
water level falls to 3/4” (19mm). They can also be used
to operate high water alarm systems.
This product must be fused with the correct
recommended fuse size for the pump to which it is
connected. Do NOT use these switches in applications
where the pump is operating above the maximum
current in the table above.
Specifications
Float Switches
The Next Gener ation
Models 35A, 35FA, 37A, 37FA, 40A, 40FA
Dimensional Drawings
Dimensions in Inches (millimeters)
Model Voltage Wire Size Wire Length Max. Amps Guard Warranty
35A 12/24/32 VDC 16 Gauge (1.29mm) 28” (712 mm) 14 No 2 Years
37A 12/24/32 VDC 14 Gauge (1.63mm) 28” (712 mm) 20 No 5 Years
40A 12/24/32 VDC 14 Gauge (1.63mm) 28” (712 mm) 20 Yes 2 Years