POWER SYSTEM
POWER (e.g.)
SPD1
SPD2
ACC
Single-phase/2-wire 220V AC
MAL-230x
Single-phase/2-wire 110V AC
MAL-230x
–
–
–
–
POWER (e.g.)
SPD1
MAL-230x
SPD2
–
ACC
CNB2-4
Single-phase /3-wire 220/110V AC
POWER (e.g.)
SPD1
MAL-230x
Single-phase /3-wire 220/110V AC
SPD2
MALN-230
ACC
CNB2-5
Single-phase
/2-wire
Single-phase
/3-wire
TN Systems (common earth)
TT Systems (independent earth)
Protected
device
G
N
L1
L2
POWER (e.g.)
SPD1
MAL-230x
MAL-230x
SPD2
MALN-230
MALN-230
ACC
CNB2-4
CNB2-4
N
Protected
device
G
Protected
device
L
N
G
SPD1
Protected
device
ACC
L
N
G
SPD1 SPD2
SPD2
ACC
SPD1 SPD1
Protected
device
G
N
L1
L2
ACC
SPD1 SPD1
POWER (e.g.)
SPD1
Three-phase/3-wire 220V AC
MAL-230x
SPD2
–
ACC
CNB2-4
POWER (e.g.)
SPD1
Three-phase/3-wire 220V AC
MAL-230x
SPD2
MALN-230
ACC
CNB2-5
Three-phase
/3-wire
(delta
connection)
Three-phase
/4-wire
(star
connection)
Protected
device
G
L2
L1
L1
L2
L3
L3
(N)
(N)
SPD2
ACC
SPD1 SPD1
Protected
device
SPD2
G
L2
L1
L3
ACC
SPD1 SPD1
POWER (e.g.)
SPD1
MAL-400A
Three-phase/4-wire 220V AC
MAL-230x
SPD2
–
–
ACC
CNB2-5
CNB2-5
Three-phase/4-wire 400V AC
POWER (e.g.)
SPD1
MAL-400A
MAL-230x
SPD2
MALN-230
MALN-230
ACC
CNB2-7
CNB2-7
ACC
SPD1 SPD1 SPD1
N
Protected
device
G
L1
L2
L3
ACC
SPD1 SPD1 SPD1
Generator or transformer
Generator or transformer
Generator or transformer
Generator or transformer
Generator or transformer
Generator or transformer
Generator or transformer
Generator or transformer
Circuit
breaker
Circuit
breaker
Circuit
breaker
Circuit
breaker
Circuit
breaker
Circuit
breaker
Circuit
breaker
Circuit
breaker
Single-phase/2-wire 220V AC
Single-phase/2-wire 110V AC
Three-phase/4-wire 220V AC
Three-phase/4-wire 400V AC
■
CONNECTION EXAMPLES BY POWER SYSTEMS
MAL
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-8162 Rev.1 P. 5 / 8