GBV-100-385-3+1 FM AC Power Surge Protective Device, Class I, 3+1 Configuration

Description

The GBV-100-385-3+1 FM is a Class I AC power surge protective device designed for lightning overvoltage protection of three-phase AC power systems. It is a 3+1 configuration device with a nominal discharge current In of 50kA and a maximum discharge current Imax of 100kA.

Product Overview

The GBV-100-385-3+1 FM is an AC power surge protective device (SPD) classified as Class I. It is intended for use on three-phase AC power supplies to provide lightning overvoltage protection. The device uses a 3+1 pole configuration and is designed for 35mm DIN rail mounting.

Key Features

• Class I surge protective device for three-phase AC power systems
• Nominal discharge current In: 50kA
• Maximum discharge current Imax: 100kA
• L-N voltage protection level Up (In@8/20µs): 3.0kV
• N-PE voltage protection level Up (In@8/20µs): 2.3kV
• L-N response time tA: 25ns
• N-PE response time tA: 100ns
• Status indicator: white for normal operation, red for failure
• Remote signaling contact: changeover contact NC-COM-NO
• PBT housing with UL94-V0 flame retardant rating
• IP20 enclosure protection

Technical Specifications

Parameter	Value
Model	GBV-100-385-3+1 FM
SPD classification	Class I
Nominal operating voltage Un	220V~
Maximum continuous operating voltage Uc	385V~
Nominal discharge current In	50kA
Maximum discharge current Imax	100kA
L-N voltage protection level Up (In@8/20µs)	3.0kV
N-PE voltage protection level Up (In@8/20µs)	2.3kV
L-N response time tA	25ns
N-PE response time tA	100ns
Status indicator	White: normal / Red: failure
Mounting method	35mm DIN rail
Conductor connection capacity	≤35mm²
Maximum torque	3.5Nm~4.5Nm
Housing material	PBT
Housing flame retardant rating	UL94-V0
Enclosure protection rating	IP20
Remote signaling contact type	Changeover contact NC-COM-NO; NC-COM normally closed, NO-COM normally open
Remote signaling contact AC performance	250V/0.5A
Remote signaling contact DC performance	125V/0.2A
Remote signaling contact terminal conductor capacity	≤1.5mm²
Temperature (humidity) range	-40℃～+80℃, relative humidity ≤95%
Altitude	≤3000m
Main body dimensions (L×H×D)	144mm×90mm×67mm (±1)

Applications

The GBV-100-385-3+1 FM is used for lightning overvoltage protection of three-phase AC power systems. It is suitable for installation in AC power distribution systems requiring Class I surge protection.

Installation and Use

The device can be connected using direct parallel wiring or V-shaped wiring as shown in the wiring diagram. For better protection performance with direct parallel wiring, the wiring should be as short as possible, with total length controlled within 0.5m.

Connecting conductors should be 16-35mm² multi-strand copper wire. A suitable circuit breaker or fuse must be connected in series at the front end of the device; the circuit breaker should have a C trip characteristic.

Power must be disconnected during installation. Live operation is strictly prohibited, and connecting conductors must meet the requirements.

When the device is operating normally, the status indicator window should be white and the alarm dry contact NC-COM should be in a conducting state. When the device fails, the status indicator turns red and the alarm dry contact NC-COM becomes an open circuit.

The device requires no special maintenance; only regular checks are needed to confirm the module is not loose and the status indicator is normal.

The device is considered failed and should be replaced promptly if either of the following occurs: the status indicator turns red, or the alarm dry contact becomes an open circuit.

Frequently Asked Questions

What does the status indicator show?

The status indicator window shows white during normal operation and red when the device has failed.

What is the difference between the L-N and N-PE voltage protection levels?

The L-N voltage protection level Up is 3.0kV, and the N-PE voltage protection level Up is 2.3kV, both measured at In@8/20µs.

How is the device mounted?

The device is designed for 35mm DIN rail mounting.

What conductor size is recommended for connection?

Connecting conductors should be 16-35mm² multi-strand copper wire.