SMA SB 240 - Manual (Page 34)

Danger to life due to electric shock
• Do not disconnect or connect the AC field plug under load.
• Only assemble the AC field plug in a dry environment.
• Observe the operating temperature range of −40°C to +85°C.
Cable requirements:
☐ Cable cross-section: 2.5 mm²
☐ Temperature-resistant up to at least +90°C
☐ External diameter of the cable sheath: 9.6 mm to 10 mm
☐ Number of stranded wires: 46
☐ Cable type: copper wire, tin-plated
☐ Wire cross-section: 0.25 mm²
Removing and reassembling the AC field plug is only possible within 72 hours
• In total, the AC field plug may at maximum be removed three times and only within the
first 72 hours after the first assembly.
• After the period of 72 hours has expired, the AC field plug must not be removed.
• The cable must be shortened again before each assembly.
• Only disconnect and disassemble the AC field plug following the instructions in this
document (see Section 13.1 "Disconnecting the AC Field Plug", page 64).
Procedure:
To assemble and connect the AC field plug, carry out the following steps in the given sequence. The
exact procedure is described in the paragraphs below.
• Assembling the Cable
• Premounting the AC Field Plug
• Mounting the Insulator
• Completing Mounting of the AC Field Plug
Assembling the Cable
1. Shorten the cable to the desired length using cable shears.
2. Dismantle the cable by 42 mm using the stripping knife. Take care not to damage the
individual insulated conductors.
3. Shorten L and N by 7 mm.
6 Electrical Connection SMA Solar Technology AG
Installation Manual SMA-SB240-IA-en-12 34