The 24V DC Power Line Control Rapid Shutdown Device, supplied by China manufacturer Zhejiang Soutya New Energy LLC, is a safety component specially engineered to meet the fire-safety requirements of PV systems in residential and light-commercial rooftop installations up to 20 kW.
▶ Configuration: SYFS-PMS Rapid Shutdown Device ,SYFS-PMSC 24V DC Controller
The 24V DC Power Line Control Rapid Shutdown Device is designed to meet the fire safety requirements
of PV systems, quickly shut off PV modules in emergency situations, reduce
the risk of electric shock, and solve the rescue and maintenance risks in PV
systems.
CHARACTERISTIC
▶ 24Vdc Control. Accurate detection of 85℃ over temperature protection.
▶ Adopting redundant design technology, the reliability of the rapid
shutdown device is higher.
▶ Fire retardant V-0/UV resistant material.
▶ The product is resistant to high temperature, corrosion, impact, and is
safe and reliable.
▶ The product is used in various photovoltaic systems for household,
industrial and commercial purposes.
▶ Meet the requirements of UL1741 and UL3741 standards.
PARAMETER
Model
SYFS-PMS1
SYFS-PMS2
Number of PV Inputs
1
2
Maximum allowable input voltage(V)
80V / 120V
Maximum Allowed Input Current(A)
20A / 25A / 30A
Maximum Output Voltage(V)
80V / 120V
160V / 240V
System Voltage(V)
1000V / 1500V
Control Compliance
24V DC Power Cord
Maximum ambient
85℃
operating temperature
Maximum allowable current
20A / 25A / 30A
of bypass diode
IP Level
IP67
PV Connectors
MC4
Size
135x78x21mm
Cable Length (input)
160mm
160mm / 1200mm
Cable Length (output)
1200mm
Standard
NEC690.12-2017; Ul1741; IEC/EN62109; IEC/EN61000
CONTROLLER PARAMETERS
Model
SYFS-PMSC-80
SYFS-PMSC-80K
24V DC controller (without lock)
24V DC controller (with lock)
Rated input voltage range(A)
Single-phase 100~240VAC
Rated Frequency(Hz)
50/60Hz
Output Voltage (V)
24V DC
Output Current(A)
Assembly
1~ 2 String formation
Assembly
1~ 2 String formation
2.2A
(1~2)x2.2A
2.2A
(1~2)x2.2A
Output Signal
24V Shutdown
Maximum number of controllable rapid shutdown
1 for 1
1 for 2
1 for 1
1 for 2
100
80
100
80
Control Function
Power on the AC power supply, and the rapid shutdown device will
conduct; Press the emergency button or disconnect the AC power
supply, or if the ambient temperature exceeds 85℃, the quick
shutdown device will quickly shut off.
Protection Level
IP65
Ambient Operating Temperature
-5℃~+40℃
External Dimensions (mm)
155×185×107mm
Application scenarios
1.Rooftop PV systems on single- and two-family houses where firefighters need a safe, code-compliant shutdown path before venting roofs or entering attics.
2.Light-commercial buildings with rooftop arrays ≤20 kW, ensuring first responders can de-energize DC conductors at the module level during an emergency.
3.Agricultural sheds and barn integrations where livestock and stored crops demand rapid arc-fault mitigation to reduce fire-ignition risk.
4.Carport and canopy installations in school or hospital parking lots, allowing maintenance crews to isolate strings quickly without climbing structures.
5.Residential energy-storage retrofits that add DC optimizers; the device guarantees shutdown on both PV and battery sides for unified fire-service isolation.
Hot Tags: 24V DC Power Line Control Rapid Shutdown Device
East of No.148, Wei 12th Road, Economic Development
Zone,Yanpan Subdistrict,Yueqing City,Wenzhou,Zhejiang
Province,China
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