ETM1-63 Solar AC Circuit Breaker | 6kA Breaking Capacity

Standard: IEC60898-1，IEC60947-2

Type of trip: Thermo-magnetic

Rated current: 1~63A

Rated voltage: 230/400V~240/415V

Number of poles: 1P,2P,3P,4P

Rated short-circuit breaking capacity: 6kA

Tripping curve: B, C, D

Ambient air temperature: -25...+40 ºC

Connection: From top and bottom

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Product Introduction

EKM1-63 AC circuit breaker provides reliable protection for photovoltaic system AC circuits with a 6kA breaking capacity, specifically engineered to address the unique protection requirements of solar power installations. Available in multiple configurations, this breaker offers essential overcurrent and short-circuit protection to safeguard your inverters, AC distribution systems, and grid interconnection points.

Applications

• Grid-Tied Residential Systems: Protects against AC-side faults in single-phase 240V systems with ≤10kW inverters

• Solar Water Pumping Systems: Handles motor starting currents (D-curve) in off-grid agricultural applications

• Battery Backup Systems: Provides overload protection for ≤20kVA hybrid inverters

• DC-AC Combiner Boxes: Branch circuit protection for parallel inverter configurations

Product Parameters

General data
Protection	Overcurrent and short circuit
Type of trip	Thermo-magnetic
No. of poles	1P, 2P, 3P, 4P
Rated Current	1,2,3,4,5,6,10,16,20,25,32,40,50,63A
Rated frequency	50/60Hz
Insulation voltage (Ui)	415V
Pollution degree	2
Data acc. to IEC/EN 60898-1
Rated operational voltage (Ue)	1P:230/400VAC,240/415VAC;2P,3P,4P: 400/415VAC
Rated short-circuit capacity (Icn)	6kA
Rated service short-circuit breaking capacity (Ics)	6kA
Energy limiting class	3
Rated impulse withstand voltage (Uimp) (1.2/50μs)	6kV
Dielectric test voltage	2kV (50/60Hz, 1 min.)
Thermal tripping characteristics	1.13In No tripping within an hour 1.45In Tripping within an hour
Instantaneous tripping characteristics	B: 3In-5In; C: 5In-10In; D: 10In-20In
Data acc. to IEC/EN 60947-2
Rated operational voltage (Ue)	1P:230/400VAC,240/415VAC; 2P,3P,4P:400/415VAC 1P: 80VDC; 2P: 125VDC
Rated ultimate short circuit breaking capacity Icu (kA)	6kA
Rated service short circuit breaking capacity Ics (kA)	6kA
Rated impulse withstand voltage (Uimp) (1.2/50μs)	6kV
Dielectric test voltage	2kV (50/60Hz, 1 min.)
Thermal tripping characteristics	1.05In No tripping within an hour 1.30In Tripping within an hour
Instantaneous tripping characteristics	8In-12In
Mechanical data
Electrical life	4,000 Cycles
Mechanical life	20,000 Cycles
Contact position indication	green OFF / red ON
Protection degree	IP20
Reference temperature	30℃
Operating ambient temperature (with daily average≤35℃)	-25℃~ +55℃
Storage temperature	-30℃ ~ +70℃
Installation
Terminal connection type	Cable/Pin-type/ Fork-type busbar
Terminal block	Screw press-connected
Max. terminal size for cable	25mm²
Max. Tightening torque	2.5Nm
Mounting type	Mounting on 35mm DIN rail
Incoming method	Bi-Directional