Jntech JNP370LS-V1, Quick Installation

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6
Table 3-3 selection of DC circuit breaker:
Model
Recommended parameters of DC circuit
breaker
JNP370L 440VDC,20A
JNP370LS 440VDC,20A
JNP550L 440VDC,20A
JNP550LS 440VDC,20A
Notice!
1. It must be DC breaker, it’s prohibited to be
replaced by AC breaker;
2. Shown as right side picture DC breaker
should be 2 stages.
3.2 Cable Selection for Electrical
Connection
Table 3-4 users can select the electrical connection cable
according to the following specifications:
Model
Cable range
（
AWG
）
DC side AC side
PV+
、
PV- U
、
V
、
W PE
JNP370L 14-12 14-12 12
JNP370LS 14-12 14-12 12
JNP550L 14-12 14-12 12
JNP550LS 14-12 14-12 12
PV+
PV+
PV- PV-
DC Breaker