Owner's
Manual
Please read this
manual before
installing your
connectors
Solar Panel
Multi-Contact
Connectors
MC4-2
1
INTRODUCTION
MC4 Multi-Contact Connectors (Fig. 1)
Samlex's MC4-2 Kit contains 1 male and 1 female MC4 solar panel connector. This type of connector system
is easy to install and uses “snap-in” safety locking tabs to lock two mating connectors, thereby avoiding
unintentional disconnection. Also when locked, the mating contacts are sealed against ingress of dust and
water. Specifi cations are as follows:
•
Connectors supplied with this kit are for use with wire size AWG # 10 or AWG # 12 with outer insulation
diameter of 3 – 6 mm
•
Contact diameter Ø 4 mm
•
Maximum rated current - 30 A
•
Maximum system voltage - 1000 V
•
Degree of ingress protection when connected and properly locked - IP67
•
Temperature range 40°C to +90°C
•
TÜV Rheinland – type approved, UL listed
Construction of MC4 Connectors (See Fig. 1)
The connectors can be crimped / soldered to wire size AWG #10 or AWG # 12 with an outer insulation
diameter of 3 to 6 mm.
1. Outer insulated housing
2A. Tin plated, Copper female mating contact
2B. Tin plated, Copper, male mating contact
3. Nut with internal rubber bush for tightening the sealing around the wire entry
4. Crimping area
1
2A
6
3
2B
4
MC4 Female Connector (PV-KBT4/6I)
MC4 Male Connector (PV-KST4/6I)
Note:
“Male” and “Female” designation is based on the mating characteristic
of the internal mating contact (see 2A and 2B)
1
3
4
Fig. 1. MC4 Male and Female Connectors
The Male and Female MC4 Connectors consist of the following components (See Fig. 1).
•
Outer insulated housing with locking arrangement (1 of Fig. 1)
•
Tin-plated Copper metallic male & female mating contacts (2A and 2B of Fig. 1). The wire is placed in
the crimping area (4 of Fig 1) and crimped with a special crimping tool
•
Nut & internal rubber bush (3 of Fig. 1). When the nut is tightened, the internal rubber bush is
compressed around the outer jacket of the cable and thus, provides water-tight sealing.
