Smart Lightning Protection

DZ47 Surge Protective Backup Protector

Name: DZ47 Surge Protective Backup Protector
Brand: YESLON
SKU: sdscb-dz47-protector
Price: 1 CNY
Availability: InStock

SDSCB40

T2 class surge protection with S-suffix signalling models that report failure status remotely; standard 35mm DIN rail clip mounting.

≤50ns40kA0.3s

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Product Overview

T2 class surge protection with S-suffix signalling models that report failure status remotely; standard 35mm DIN rail clip mounting.

Core capabilities

T2 Class Protection: Effectively discharges induced lightning surges and internal grid overvoltages. High Surge Capacity: Nominal discharge current 20kA, maximum 40kA. Low Residual Voltage: Voltage protection level down to 1.5kV with response time ≤50ns.

Data Generated

≤50ns40kA0.3s

Product Features

T2 Class Protection

Effectively discharges induced lightning surges and internal grid overvoltages

High Surge Capacity

Nominal discharge current 20kA, maximum 40kA

Low Residual Voltage

Voltage protection level down to 1.5kV with response time ≤50ns

Multiple Configurations

2P/4P and 275V/385V combinations, compatible with AC and DC

Remote Signalling

S-suffix models carry a built-in dry contact for failure status reporting

Easy Rail Mounting

Standard 35mm rail clip design, suited to volume deployment

System Topology

Technical Parameters

Technical Data

Rated operating voltage Ue 230/400V AC Operating frequency 50/60Hz Maximum continuous operating voltage Uc 275V / 385V Nominal discharge current In 10 / 20 / 30 / 40kA Maximum discharge current Imax 20 / 40 / 60 / 80 / 100kA Voltage protection level Up 1.5kV (Uc=275V) / 1.8kV (Uc=385V)

Rated operating voltage Ue	230/400V AC
Operating frequency	50/60Hz
Maximum continuous operating voltage Uc	275V / 385V
Nominal discharge current In	10 / 20 / 30 / 40kA
Maximum discharge current Imax	20 / 40 / 60 / 80 / 100kA
Voltage protection level Up	1.5kV (Uc=275V) / 1.8kV (Uc=385V)
Response time	≤50ns
Power-frequency short-circuit operating current	3A
Power-frequency disconnection time	0.3s
Power-frequency current disconnection cycles	1000 cycles
Poles	1P / 2P / 3P / 4P
Maximum conductor cross-section	6~25mm²
Ambient temperature	-40℃ ~ +80℃
Dimensions	87.5×81.5×18mm (single pole)
Remote signalling	Built-in dry contact on S-suffix models
Mounting	Standard 35mm DIN rail

Installation Instructions

Standard 35 mm DIN rail mounting; terminals: supply side L1/L2/L3, N, PE, communication and signal terminals as marked on the device.

Key Points

FAQ

Which models does the DZ47 backup protector range include?

Two models are offered, SDSCB40 and SDSCB20, with maximum discharge currents of 40kA and 20kA (8/20μs) respectively. They are matched to SPDs rated ≤40kA and ≤20kA.

How does the DZ47 structure differ from the C65 structure?

The housing structure differs: the DZ47 version matches the mounting position and appearance system of DZ47 series distribution boxes. Electrical parameters are given at test class T3, with power-frequency short-circuit breaking capacity of 25kA and 15kA.

What does an S-suffix signalling model provide?

Models with the S suffix contain a built-in dry contact that reports failure status to a monitoring system for remote maintenance. A local failure indication window is still provided on the device.

What are the wiring and dimensional figures?

The device clips onto a standard 35mm rail, with a single-pole outline of 87.5×81.5×18mm and maximum conductor cross-section of 6~25mm². Pole options are 1P/2P/3P/4P.

What are the operating conditions and certification status?

Operating temperature is -40℃ to +80℃ and the device withstands 1000 power-frequency current disconnections. Certification is CE / CMA / CNAS accredited laboratory, and price is Request a quote.

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