Single-phase heaters three-phase heaters, Three-phase heaters, Based on 60°c copper wire. see table ii – Bryant 559B User Manual
Page 12: Circuita to fused disconnect circuit
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TO FUSED
DISCONNECT
TO FUSED
DISCONNECT
TO FUSED .
DISCONNECT
KW
Voltage-
Phase
Circuits
Used
Wire
Size*
5
240-1
1
A
10
7.5
240-1
1
A
8
10
240-1
1
A
6
15
240-1
2
A
6
B
. 10
20
240-1
2
A
6
B
6
25
240-1
3 .
A
6
B
6
C
10
*Based on 60°C copper wire. See Table II.
SINGLE-PHASE HEATERS
THREE-PHASE HEATERS
(PIGTAIL CONNECTIONS)
CIRCUITA
TO FUSED
DISCONNECT
CIRCUIT
B
TO FUSED
DISCONNECT *Based on 60°C copper wire. See Table II.
THREE-PHASE HEATERS
(TERMINAL BOARD CONNECTIONS)
KW
Voltage-
Phase
Circuits
Used
Wire
Size*
25
208-3
2
A
'6
B
6
14.9/19.8
208/240-3
1
A
6/4
18.75/25
208/240-3
2
A
8/8
B
8/8
20
480-3
1
A
10
LEGEND
FACTORY LINE-VOLTAGE WIRING
FIELD LINE-VOLTAGE WIRING
FIELD SPLICE
Figure 10—Line-Power Connections
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12
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