T2 Plug-in Surge Protective Device
Plug-in T2 surge protective device with replaceable modules; covers 1P to 4P and 1+NPE/3+NPE protection modes.
Overview
Key Features
Fast Response Protection
≤50ns clamping of induced lightning and switching overvoltages
Strong Surge Capability
Nominal discharge current 20kA, maximum 40kA
Multiple Configurations
1P to 4P and 1+NPE/3+NPE, Uc 275~760V
Local Failure Indication
Window colour change identifies module status
Remote Signalling
Optional dry contact output
Convenient Rail Mounting
Standard 35mm rail, plug-in modules
Technical Data
| Protection class | T2 |
| Protection modes | 1P / 2P / 3P / 4P / 1+NPE / 3+NPE |
| Maximum continuous operating voltage Uc | 275V ~ 760V optional |
| Nominal discharge current In | 20kA |
| Maximum discharge current Imax | 40kA |
| Voltage protection level Up | 1.5kV / 1.8kV |
| Response time | ≤50ns |
| Structure | Plug-in module and base |
| Mounting | Standard 35mm DIN rail |
| Remote signalling | Optional dry contact signalling output |
| Protection degree | IP20 |
Models & Selection
| Parameter | ZL2-V-x/275-4P | ZLS2-V-x/385-4P | ZL2-V-x/275-2P | ZLS2-V-x/385-2P |
|---|---|---|---|---|
| Protection class | T2 | T2 | T2 | T2 |
| Maximum continuous operating voltage Uc | 275V | 385V | 275V | 385V |
| Nominal discharge current In | 10/20/30/40kA | 10/20/30/40kA | 10/20/30/40kA | 10/20/30/40kA |
| Maximum discharge current Imax | 20/40/60/80/100kA | 20/40/60/80/100kA | 20/40/60/80/100kA | 20/40/60/80/100kA |
| Voltage protection level Up | 1.5kV | 1.8kV | 1.5kV | 1.8kV |
| Response time | ≤50ns | ≤50ns | ≤50ns | ≤50ns |
| Poles | 4P | 4P | 2P | 2P |
| Dimensions (L×W×H mm) | 72×83×67 | 72×83×67 | 36×83×67 | 36×83×67 |
Model naming rule：ZL2-V-x/275-4P ZLS2-V-x/385-4P ZL2-V-x/275-2P ZLS2-V-x/385-2P
Installation
FAQ
How does the plug-in series differ from fixed versions?
Both types share the same T2 class electrical parameters, but plug-in modules sit on a base and are swapped out for replacement, while fixed versions are removed and reinstalled as a whole unit.
Which protection modes are supported?
Six protection modes are supported: 1P, 2P, 3P, 4P, 1+NPE and 3+NPE. The same series is rated T2 class with In 20kA, Imax 40kA, Up 1.5kV/1.8kV and response time ≤50ns.
What is the selectable Uc range for the series?
Uc is selectable in multiple steps from 275V to 760V. The step is chosen according to the voltage of the distribution system.
What are the installation requirements?
Mounting is on a standard 35mm rail inside a distribution cabinet or enclosure, with protection degree IP20. Modules plug into the base.
How is the product certified and quoted?
Certification is CE / CMA / CNAS accredited laboratory. Price and lead time are quoted per project; Request a quote with the protection mode and quantity.