User's Manual

ALPHA meter
IL42-4001S
8
4 wire delta meters
CIRCUIT
CLOSING
DEVICE
1
2
3
N
3
2
1
N
Form 10S (Form 8S application)
3 phase, 4 wire delta, 3 CTs, no PTs
20E01
Wiring is different than a traditional
Form 8 meter
Form 10A (Form 8A application)
3 phase, 4 wire delta, 3 CTs, no PTs
23E01
1
2
3
N
3
2
1
N
Wiring is different than a traditional
Form 8 meter
1
2
3
L
O
A
D
1
N
3
N
2
3
2
1
N
Form 16S (Form 15S application)
3 phase, 4 wire delta, self-contained
20E01
1
2
3
N
L
O
A
D
1
2
3
N
3
2
1
N
Form 16A (Form 15A application)
3 phase, 4 wire delta, self-contained
20E01
Form 26S
3 phase, 4 wire delta, 2 CTs, no PTs
20C06
CIRCUIT
CLOSING
DEVICE
3
2
1
N
K
Z
Y
1
2
3
N
Reduce CT ratio
by ½
CIRCUIT
CLOSING
DEVICE
3
2
1
N
K
Z
Y
1
2
3
N
Form 26S
3 phase, 4 wire delta, 2 CTs, 2 PTs
29A02
Reduce CT ratio by ½
60 Hz only
ALPHA Plus with
autodetection enabled &
A3 ALPHA only
3
21
N
CIRCUIT
CLOSING
DEVICE
1
2
3
N
Form 35S
3 phase, 4 wire delta, 2 CTs, 2 PTs
Reduce CT ratio by ½
21C06
Form 35S
3 phase, 4 wire delta, 2 CTs, no PTs
3
21
N
CIRCUIT
CLOSING
DEVICE
1
2
3
N
Reduce CT ratio by ½
60 Hz only
ALPHA Plus with
autodetection
enabled &
A3 ALPHA only
16C06
1
2
3
N
3
21
N
Form 35A
3 phase, 4 wire delta, 2 CTs, 2 PTs
27A02
Reduce CT ratio by ½