Emiter EM-317_DC Combiner Box (5x MPPT, Type 1+2 Surge Arrester)

The Emiter EM-317_DC solar DC combiner box is designed to protect PV installations with up to five MPPTs. The device is supplied pre-assembled, equipped with five Dehn Type 1+2 surge arresters and hermetic MC4 panel receptacles.

The Emiter EM-317_DC surface-mounted hermetic combiner box is designed to protect photovoltaic systems operating with five module strings. The PHS 24T enclosure offers an IP65 protection rating, IK08 impact resistance, and is made of halogen-free material. The interior conceals five factory-installed Dehn DCB YPV 1200 Type 1+2 surge arresters, ensuring safe operation in buildings with and without lightning protection systems. This is complemented by convenient MC4 panel connectors for efficient installation.

Key features

• Support for 5 PV module strings on 5 independent MPPT inputs.
• Five integrated Dehn DCB YPV 1200 Type 1+2 surge arresters.
• Surface-mounted enclosure with IP65 protection rating and IK08 mechanical resistance.
• Halogen-free plastic construction equipped with a transparent door.
• Standard MC4 panel receptacles ready for immediate connection.

Technical data

Number of enclosure modules	24
Protection rating	IP65
Protection class	II
Impact resistance	IK08
Rated enclosure insulation voltage	690 V AC, 1000 V DC
Maximum PV voltage for the arrester	<= 1200 V
Surge arrester type	Type 1+2
Nominal discharge current In (8/20 µs)	20 kA
Maximum discharge current Imax (8/20 µs)	40 kA
Total impulse current Itotal (10/350 µs)	12.5 kA
Voltage protection level Up	< 3.8 kV
Arrester response time	<= 25 ns
Operating temperature range	-40°C ... +80°C
Net enclosure depth	144 mm