Single Phase Heaters, 120 thru 600 Volt AC

Single phase heaters are available from 120, 208, 240, 277, 440, 460, 480 thru 600 V AC.

STAGING & SEQUENCING are based on the number of elements in a Heater. Use the first chart shown to determine the number of elements in the Heater to be staged or sequenced. The next chart shows the staging increments offered.

[Over 4 stages - contact factory]

SINGLE PHASE SINGLE PHASE

KW @ 120V

Elements
@ 120V

KW @ 277V

Elements @ 277V

.5 - 3.0

(1)

.5 - 5.5

(1)

3.5 - 4.8

(2)

5.6 - 11.0

(2)

 

Number of Elements Two Staging Increments THREE STAGING Increments FOUR STAGING Increments

1

1/2,1/2

1/3,1/3,1/3

1/4,1/4,1/4,1/4

2

1/2,1/2

1/3,1/3,1/3

1/4,1/4,1/4,1/4

 

SINGLE PHASE SINGLE PHASE

KW @ 208V

Number of Elements @ 208V

KW @ 240V

Number of  Elements @ 240V

.5 - 5

(1)

.5- 6

(1)

6 - 10

(2)

7 - 11.5

(2)

11 - 15

(3)

12 - 17.25

(3)

16 - 20

(4)

18 - 23

(4)

21 - 29.4

(6)

24 - 34.5

(6)

30 - 34.5

(8)

 

 

No. of Elements
Standard
2 Staging Increments 3 Staging Increments 4 Staging Increments

1

1/2, 1/2

1/3,1/3,1/3

1/4,1/4,1/4,1/4

2

1/2, 1/2

1/3,1/3,1/3

1/4,1/4,1/4,1/4

3

1/3, 2/3

1/3,1/3,1/3

1/4,1/4,1/4,1/4

3

2/3, 1/3

   

3

1/2, 1/2

   

4

1/2, 1/2

1/4,1/4,1/2

1/4,1/4,1/4,1/4

4

 

1/4,1/2,1/4

 

4

 

1/2,1/4,1/4

 

6

1/2, 1/2

1/3,1/3,1/3

1/3,1/3,1/6,1/6

8

1/2, 1/2

1/4,1/4,1/2

1/4,1/4,1/4,1/4