SMA PPM-10 - Connecting the Voltage Measurement

6 Electrical Connection
SMA Solar Technology AG
Installation Manual 43PPM-10-IA-en-16
☐ When the synchronization assembly is used, the current transformers used must have a secondary rated current of
5A (variant: Hybrid Controller XL Synch).
Cable requirements:
☐ Conductor type: copper wire
☐ Conductor cross-section: 1.5mm² to 2.5mm² (16AWG to 14AWG)
☐ Maximum cable length: 30m (98ft)
☐ Cable with shielding: Yes
SMA Solar Technology AG recommends using a 10-conductor cable with a conductor cross-section of 2.5mm²
(14AWG) to connect the current- and voltage-measurement device of the product.
Procedure:
1. Insert the cable into the product (see Section6.10.1, page55).
2. Connect the insulated conductors in accordance with the customer-specific system circuitry (see Section6.10.2,
page56).
3. Remove the jumpers from the wired terminals using suitable pliers. The black jumpers are fitted at the factory.
4. Ensure that the wires are correctly connected and fit tightly.
5. Ensure that the black jumpers are plugged into the unconnected terminals.
6.4.4 Connecting the Voltage Measurement
DANGER
Danger to life due to electric shock when live components or cables are touched
High voltages are present in the conductive components or cables of the product. Touching live parts and cables
results in death or lethal injuries due to electric shock.
• Do not touch non-insulated parts or cables.
• Before performing any work or opening the product, short-circuit the secondary circuits of the current
transformers through an external short circuit device, externally disconnect the supply voltage and cables for
the current and voltage measurement.
• Observe all safety information on components associated with the product.
• Wear suitable personal protective equipment for all work on the product.
• Always perform all work in accordance with the locally applicable standards, directives and laws.
• Cover or isolate all live components.