Alternating Relays

Description

The Model 261 series Alternating Relay is designed for duplex pumping systems where it is desirable to equalize pump run time. The solid-state alternating circuit drives an internal electromechanical relay. A continuous power source and control switch are required.

The control switch (float, pressure or other isolated contact) is connected between the L1 terminal and the control terminal. Each time the control switch is opened the output contacts will change states. Indicator lights on the case show the internal relay status.

On the optional toggle switch versions, the toggle switch is set to the ALTERNATE position. Setting the switch to Load 1 or Load 2 will lock the relay in position, preventing alternation.

Specs

Model 

261x(T)-xxx 

Supply Voltage 

12V AC/DC 

24V AC/DC 

120V AC/DC 

240V AC/DC 

Voltage Range  

10-14V 

20-28V 

90-130V 

180-250V 

Max. Voltage 

15V 

30V 

140V 

260V 

Supply Current

0.1A 

0.05A 

0.01A 

0.01A 

Control Current

0.001 amp 

Operating Duty 

Continuous 

Min. Cycle Time 

100 msec 

Contacts 

10A at 10 msec 

Expected Relay Life  Mech:  10 million operations
Elec:  100,000 operations at rated load 
Operating Temp  240V models:       -40° to +131°F 
All other models:  -40° to +140°F  
Humidity Tolerance 

0-97% w/o condensation 

Mounting  261D:               11-pin socket*
261S or 261DX:  8-pin socket** 
Enclosure Material 

ABS Plastic 

Weight 

4.3 oz. 

Agency Approvals 

UL Recognized and CSA Certified 

*order 11-pin socket #51X016

**order 8-pin socket #51X120


ORDERING INFORMATION

MODEL 

RELAY POLES 

TOGGLE

 

SUPPLY VOLTAGE

 261

 S=single pole

T

 12 V AC/DC

 D=double pole

 24 V AC/DC

DX=dbl pole x-wired 

 120 V AC/DC

 240 V AC/DC

 EXAMPLE:  261-DX-120 orders 120V AC/DC; double-pole,
x-wired Alternating Relay w/o the toggle option.

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