描述 Description

The ALT-xxx-1-SW/ALT-xxx-3-SW Series are used to alternate

between two loads and are commonly used in duplex

pump-up and pump-down applications to balance the runtime

of both pumps.

The ALT relays have a built-in debounce time delay that prevents

the relay from changing state if the float momentarily bounces,

and they have a built-in switch to manually force a specific load

(pump) to operate each time the input float closes. This is helpful

when performing periodic maintenance or pump repair.

Must use the OT08PC socket for the 8-pin models, and the OT11PC socket for the

11-pin models, for UL Rating!

*Note: Manufacturer’s recommended screw terminal torque for the OT Series

Octal Sockets is 12 in.-lbs.

FEATURES BENEFITS

Debounce time delay Prevents rapid cycling caused by waves or splashing

in the tank

LED indicators Visual indication of load operation in

duplex application

Built-in manual switch

to force load operation

Helpful to control load operation when performing

periodic maintenance or pump repair

ALT-xxx-3-SW

offers duplexing

Allows lag pump to energize if lead pump can’t

handle current demand