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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.
4
2A
MC4 Female Connector (PV-KBT4/6I)
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
Note:
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.
Solar Panel
Multi-Contact
Connectors
MC4-2
3
1
6
"Male" and "Female" designation is based on the mating characteristic
of the internal mating contact (see 2A and 2B)
Fig. 1. MC4 Male and Female Connectors
Owner's
Manual
3
1
4
2B
MC4 Male Connector (PV-KST4/6I)
Please read this
manual before
installing your
connectors
1
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Related Manuals for Samlex Solar MC4-2
Summary of Contents for Samlex Solar MC4-2
- Page 1 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.
- Page 2 In most solar panels (for example, solar panels manufactured by Samlex Solar), the other end of each wire is terminated with an MC4 connector. The Positive (‘+’) wire has a Female MC4 Connector and the Negative (‘-‘) wire has a Male MC4 Connector. To extend the length of the wires of these solar panels for connection to a charge controller, combiner box or grid-connected inverter, an extension wire is required with corresponding Male and Female MC4 Connectors.
- Page 3 Warning! When the surface of the solar panel / array is exposed to sunlight, a DC voltage appears at the output terminals turning it into a live voltage source. For example, a 24 V nominal solar panel my put out an open circuit voltage of around 45 VDC that may produce electrical shock. Multiple so- lar panels connected in series (to increase the output voltage) will put out higher lethal voltages To avoid any electrical shock hazard during installation, make sure that the solar panel / array is covered with an opaque (dark) material to block solar irradiation.
- Page 4 2 YEAR LIMITED WARRANTY The MC4-2 Solar Panel Multi-Contact Connectors supplied by Samlex America, Inc. (the “Warrantor “) are warranted to be free from defects in workmanship and materials under normal use and service. This warranty is in effect for 2 years from the date of purchase by the user (the “Purchaser “).