G1V-40/85DC-FM DC Power Surge Protective Device, Class II, 85 Vdc, Hot-Swappable

Description

The G1V-40/85DC-FM is a Class II DC power surge protective device (SPD) intended for lightning overvoltage protection of DC power supplies. It limits transient overvoltages with a voltage protection level Up of ≤0.6 kV at In under an 8/20 µs waveform and responds within 25 ns. The plug-in module is hot-swappable and provides a local degradation indicator plus an NC-COM remote signalling contact.

Product Overview

The G1V-40/85DC-FM is a DC power surge protective device classified as Class II. It is designed for lightning overvoltage protection on DC power circuits, with a maximum continuous operating voltage Uc of 85 Vdc. Protection performance is defined by a nominal discharge current In of 20 kA, a maximum discharge current Imax of 40 kA, and a voltage protection level Up of ≤0.6 kV measured at In with an 8/20 µs waveform. The module installs by hot swap into a frame and reports its status through a colour indicator and a remote signalling contact.

Key Features

• Class II DC surge protective device for DC power overvoltage protection
• Maximum continuous operating voltage Uc: 85 Vdc
• Nominal discharge current In: 20 kA; maximum discharge current Imax: 40 kA
• Voltage protection level Up (In @ 8/20 µs): ≤0.6 kV
• Response time tA: 25 ns
• Hot-swappable plug-in installation
• Degradation indicator: green for normal, red for degraded
• Remote signalling contact type NC-COM, normally closed
• Housing material flame rating UL94-V0; enclosure protection IP20
• Operating temperature range -40 °C to +80 °C, relative humidity ≤95%

Technical Specifications

Parameter	Value
Model	G1V-40/85DC-FM
SPD classification	II
Maximum continuous operating voltage Uc	85 Vdc
Nominal discharge current In	20 kA
Maximum discharge current Imax	40 kA
Voltage protection level Up (In @ 8/20 µs)	≤0.6 kV
Response time tA	25 ns
Installation method	Hot swap
Material flame rating	UL94-V0
Degradation indication	Green: normal; red: degraded
Remote signalling contact type	NC-COM, normally closed
Remote signalling contact AC rating	250 V / 0.5 A
Remote signalling contact DC rating	125 V / 0.2 A
Enclosure protection rating	IP20
Temperature and humidity range	-40 °C to +80 °C, relative humidity ≤95%
Altitude	≤3000 m
Insertion / withdrawal force (N)	≤80 / 75
SPD insertion and withdrawal cycles	200
Insertion depth (mm)	Main busbar: 17 to 19; signalling: 11 to 12
Body dimensions	128 mm × 40 mm × 12 mm

Applications

The G1V-40/85DC-FM is used for Class II lightning overvoltage protection of DC power supplies, where the DC system operating voltage does not exceed the specified maximum continuous operating voltage Uc of 85 Vdc. It is suited to installations that require local status indication and remote monitoring of the SPD state through a signalling contact.

Installation and Use

The device is installed by hot swap into a frame. Insertion depth is 17 to 19 mm for the main busbar and 11 to 12 mm for the signalling connection. Insertion and withdrawal force is ≤80 N and ≤75 N respectively, and the device is rated for 200 insertion and withdrawal cycles. Installation altitude should not exceed 3000 m, and the operating environment should remain within -40 °C to +80 °C with relative humidity ≤95%.

During normal operation the alarm contact NC-COM is conductive (closed). When the SPD has degraded, the NC-COM alarm contact is open. The local degradation indicator shows green when the device is normal and red when it is degraded.

Frequently Asked Questions

What does the green and red indicator mean?

Green indicates the SPD is normal; red indicates the SPD is degraded.

How does the remote signalling contact behave?

The NC-COM contact is normally closed and conductive while the SPD is working normally. When the SPD fails, the NC-COM contact opens.

What is the maximum continuous operating voltage?

The maximum continuous operating voltage Uc is 85 Vdc.

Can the module be replaced while installed?

The device uses a hot-swap installation method and is rated for 200 insertion and withdrawal cycles.