AC Distribution Box Emiter EM-307_AC (20 A, 3-phase, IP65)

The Emiter EM-307_AC hermetic AC distribution box is a ready-to-connect surface-mounted enclosure designed for 3-phase photovoltaic installations. The device features an IP65 protection rating and is equipped with a Dehn type 1+2 surge arrester, a 20 A circuit breaker, and a residual current device (RCD).

The Emiter EM-307_AC AC connection box is designed to protect photovoltaic installations. Its design allows for safe surface mounting wherever a high degree of enclosure tightness is required. The box is fully assembled and ready for direct connection in a 3-phase system. The enclosure with a transparent door is made of halogen-free, impact-resistant plastic.

Key features

• Integrated AC surge arrester Dehn DSH TNS 255 (type 1+2)
• Built-in 3-pole 20 A miniature circuit breaker (MCB) with B tripping characteristic
• Applied 300 mA residual current device (RCD) sensitive to pulsating current (type A)
• High IP65 protection rating and IK08 mechanical impact resistance
• Equipped with MC4 standard panel receptacles

Technical data

Number of phases	3
Protection type	AC
Max AC current	20 A
Surge arrester type	1+2
Rated residual current RCD	300 mA
Protection rating	IP65
Impact resistance	IK08
Rated short-circuit breaking capacity ICN	6 kA
Net depth	144 mm