A9L40600 Schneider surge protection

Model A9L40600 Schneider – Model Analysis and Technical Parameters

A9L40600 is the complete order number of a low-voltage surge protection product (Surge Arrester) under Schneider Electric‘s Acti9 Series. It belongs to the iPRD40 modular surge arrester series and is mainly used for Type 2 surge protection in power distribution systems.

Model Segment Analysis

Code Segment	Description	Corresponding Product Attribute
A9	Schneider Acti9 Series Identifier	A standardized low-voltage component series for terminal power distribution, including circuit breakers, surge arresters, etc.
L40	Product Type Sub-code	Represents the iPRD40 series modular surge arrester. “L” generally indicates surge protection products, and “40” corresponds to the 40kA maximum discharge current rating.
600	Structural Feature and Configuration Code	Corresponding to 3P+N (three-phase + neutral) pole configuration, 350V rated voltage, and equipped with a pluggable trip module

Summary of Core Product Attributes

Item	Specification Parameter
Brand and Series	Schneider Acti9 iPRD40 Series
Product Type	Type 2 modular surge arrester (with pluggable trip unit)
Pole Configuration	3P+N (three-phase + neutral)
Rated Voltage (Uc)	350V AC (suitable for domestic 400V three-phase systems)
Maximum Discharge Current (Imax)	40kA (8/20μs waveform)
Protection Class	Type 2 (secondary surge protection for power distribution systems)
Technical Principle	Combined technology of MOV (Metal Oxide Varistor) + GDT (Gas Discharge Tube)
Applicable Earthing System	TN-S, TT systems (not applicable to TN-C, IT systems)

Detailed Technical Parameter Table

Parameter Category	Specific Value	Remarks
Electrical Parameters
Rated Operating Voltage	350V AC	50/60Hz
Maximum Discharge Current	40kA (8/20μs)	Core indicator of surge protection
Nominal Discharge Current	20kA (8/20μs)
Voltage Protection Level (Up)	≤ 1.5kV	Measured at In=10kA
Response Time	≤ 25ns	MOV+GDT combined technology ensures fast response
Mechanical and Installation Parameters
Module Width	4 modules (72mm)	Suitable for 35mm DIN standard rail
Dimensions	85mm (H) × 72mm (W) × 69mm (D)
Terminal	Suitable for 2.5~35mm² copper conductors	Recommended torque: 8~10N·m
Protection Class	IP20	Suitable for installation inside power distribution cabinets
Environmental and Service Life Parameters
Operating Temperature	-25°C ~ +60°C
Storage Temperature	-40°C ~ +85°C
Mechanical Service Life	≥ 10,000 times (plug-in operation)
Electrical Service Life	Complies with IEC 61643-11 standard	The pluggable module can be replaced when surge protection components age
Certification and Standards
Compliant Standards	IEC 61643-11, GB 18802.1	Certified with CE and CCC

Core Functions and Working Principle
Surge Suppression Mechanism: Adopts MOV+GDT hybrid technology. MOV is responsible for fast response (≤25ns) to suppress most surges, while GDT provides higher surge withstand capacity and lower leakage current.
Fault Indication Function: The pluggable module is equipped with a visual status indicator (green = normal, red = fault) for quick identification of protection status.
Thermal Trip Protection: Built-in thermal trip device automatically trips when surge energy is excessive or components age, preventing overheating damage to the arrester.
Replaceable Design: Only the pluggable trip module needs to be replaced after a fault, eliminating the need for overall replacement and reducing maintenance costs.
Typical Application Scenarios

Application Field	Specific Application Scenario	Protection Target
Commercial Buildings	Main/distribution power cabinets in office buildings, shopping malls, hotels	Protect critical loads such as air conditioners, elevators, and lighting systems
Industrial Plants	Production line control circuits, PLC systems, front-end of frequency converters	Prevent damage to precision electronic equipment caused by lightning strikes or grid fluctuations
Data Centers	UPS input/output terminals, front-end of server cabinet PDUs	Ensure continuous and stable operation of IT equipment and avoid data loss
Infrastructure	Critical power distribution circuits in hospitals and transportation hubs	Protect life-safety related equipment and control systems
Photovoltaic Systems	AC side output terminals of inverters	Suppress surges generated by photovoltaic systems and grid feedback surges

Installation and Operation Precautions
Installation Location:

As Type 2 protection, it should be installed in the main or distribution power cabinet, after the main circuit breaker.

Recommended to be installed close to the protected equipment, with the line length not exceeding 10 meters.

Wiring Requirements:

Phase lines (L1/L2/L3) and neutral line (N) must be wired correctly according to the markings.

The protective earthing (PE) wire should be as short and thick as possible. It is recommended to use ≥16mm² copper conductors with a length not exceeding 50cm.

All terminals must be tightened to the recommended torque (8~10N·m) to prevent overheating due to poor contact.

Matching Requirements:

A 16A~32A miniature circuit breaker or fuse must be installed upstream as overcurrent protection to prevent short circuits caused by surge arrester faults.

Not applicable to IT and TN-C earthing systems, only suitable for TN-S and TT systems.

Maintenance Points:

Regularly check the status indicator (green = normal, red = fault).

Replace the pluggable trip module in a timely manner after a fault; do not perform plug-in operations with power on.

It is recommended to conduct a surge protection performance test every 2 years.

Reference of Related Models in the Same Series

Model	Pole Number	Maximum Discharge Current	Rated Voltage	Application Scenario
A9L40200	1P+N	40kA	350V	Type 2 surge protection for single-phase power distribution systems
A9L40400	2P+N	40kA	350V	Two-phase power distribution systems (e.g., lighting systems)
A9L40600	3P+N	40kA	350V	Three-phase power distribution systems (mainstream model)
A9L15600	3P+N	15kA	350V	Places with low surge risk