OEM GNSCB Special Protection Device For Surge Protective Device Supplier, Suppliers

GNSCB series surge protector special protection device is connected in SPD loop in series to realize the function of quickly cutting off power frequency small current and high current lightning strike without trip using internal current sorting channel device. Compared with conventional backup protection devices, it has advantages of higher.

Product Description

Surge Protector Special Protection Device (SCB)

Product range Experimental categories Current Parameters (limp/Imax) Disconnection ability Number of poles
CDYNSCB 1 40 100 4P
Selection Guide 1: Ⅰ (10/350us) Inrush current limp: 15kA 100kA / 65kA 1P, 2P, 3P, 4P
2: Ⅱ (8/20us) Imax: 20kA, 40kA, 65kA, 80kA, 120kA
Material number rules: For example, CDYNSCB test category I, impulse current 15kA, breaking capacity 100kA, pole number 4P: the corresponding material number is CDYNSCB1151004.

Dimensions (mm)

CDYNSCB Dimensions

Technical Parameters & Electrical Characteristics

Electrical Characteristics
Comply with standards NB/T 42150 《Special protection device for low voltage surge protector》
Rated operating voltage Uo AC 230V/400V
Number of poles 1P, 2P, 3P, 4P
Matching SPD test category Class I (T1) Class II (T2)
Model (CDYNSCB) -15 -20 -40 -65 -80 -120
Waveform (us) 10/350us 8/20us
Max impulse current limp 15kA / / / / /
Max discharge current Imax / 20kA 40KA 65kA 80kA 120kA
Short circuit capability Icn 65kA, 100kA
Min delayed action current ld 3A
Other Parameters
Wiring Capacity 2.5~25mm²
Remote indication function 2.5 N.m
IP rating IP20 (Handle indication: ON-closed, OFF-opened)
Operating temperature -25℃~+60℃, relative humidity ≤95%
Storage temperature -40℃~+75℃, relative humidity ≤75%
Installation Direction Up in and down out
Note: Only applicable to voltage limiting surge protectors.

Frequently Asked Questions

What is the primary function of the CDYNSCB device?
The CDYNSCB is a special protection device designed specifically for surge protectors (SPD). It prevents the SPD from catching fire in case of failure or short circuit while ensuring that the SPD remains operational during normal surge events.
Does this device support both T1 and T2 surge protectors?
Yes, it supports both Class I (T1) using 10/350us waveforms and Class II (T2) using 8/20us waveforms, with current capacities ranging from 15kA to 120kA depending on the model.
What are the environmental requirements for installation?
The device is designed to operate in temperatures between -25℃ and +60℃ with relative humidity up to 95%. For storage, it can withstand -40℃ to +75℃.
What wiring size is compatible with this protector?
The CDYNSCB supports a wiring capacity of 2.5mm² to 25mm², accommodating a wide range of industrial electrical connections.
Can this device be used with any surge protector?
According to the technical specifications, this device is specifically applicable to voltage-limiting surge protectors.
What is the IP rating of the CDYNSCB?
The device has an IP20 rating, providing protection against solid objects while being suitable for indoor distribution board installations.

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