Sr.

No.

Description

Surge Protection Devices (SPD)

Transient Voltage Surge Suppression (TVSS)

1

Application

For Electrical Panels

MDB/SDB / DB

Electronics or Information Technology Equipment (ITE)

2

Technology

Spark Gap & Metal Oxide Varistor (MOV)

Metal Oxide Varistor (MOV)

+ Surge Capacitance (Filter)

3

Protection

Surge Protection / No filtering

Transient/Surge +Noise Protection

4

Connection Mode

Two Mode Protection

L-N and N-G

All Mode Protection

L-L, L-N, L-G & N-G

5

Maximum Continuous Operating Voltage

MCOV: 255V – 380 V

MCOV: Min. 320 V

6

Response Time

25ns  – 1ms

< 0.5 ns

7

Protection Level

Spark Gap : 0.9 to 4 kV

MOV         : 1.3 to 1.6 kV

0.8 kV

8

Surge Current Capacity

Spark Gap : 50 kA

MOV         : 20 KA

25kA – 400 kA

9

EMI/RFI Attenuation

NIL

40 dB typical

10

Life

Life – Not sure

Life Testing – Chart

11

Monitoring / Life Indication

Spark Gap - No monitoring

MOV–Physical & NO/NC contacts

All Mode Monitoring

LED Indication & DRY Contacts

12

Connection / Installation

Parallel

TVSS Parallel / ATF, Filter Series

13

Coordination

No component coordination

Different Technology

Coordinated components with internal fusing

14

Warranty

0 – 5 years

5 – 10 years

15

Safety

IP 20

NEMA 12/IP55 enclosure, silver link fusing with thermal protection.

16

Approval

No UL Listing

Listed UL 1449-2 / CUL,

ISO 9001/2000, CE mark