TES 240 MSA-320

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Introducing the TES 240MSA-320 Surge Arrester, installed at wattmeter, service entry or weatherhead locations for residential and light industrial applications. The TES 240RMSA-320 Surge Arrester is specifically designed for long lifetimes even with strong lightning activity and temporary line overvoltage conditions. A tough Surge Arrester for tough line conditions.

Applications
120 VAC-240 VAC Surge Arrester for residential and light industrial usage. Installed at heating and air conditioning system units, safely clamps and dissipates lightning induced AC line high voltage current impulses going to a residence, apartment or light industrial building. Also protects against AC line temporary overvoltage conditions.

Description
Environmental Specifications

Description

Features
Intertek certified to UL 1449 4th edition surge suppressor with thermal protection designed to open in the event of over heating due to an abnormal over-voltage or temporary overvoltage (TOV) and will interrupt any abnormal current that may be encountered.

• Compact Size
• Intertek tested and approved to ANSI / UL 1449 4th edition
• Quick thermal response and perfect circuit cutoff function due to special thermal disconnector design with intemal arc extinguishing device (Patent)
• Wide operating temperature range and high reliability
• Low leakage current
• Application in the AC mains, service entrance, and heavy industrial etc
• SCCR up to 100 KAtms without external fuse or CB
• Fire Proof and explosion proof polycarbonate glass-fiber reinforced enclosure with matching mounting connector
• Sealed unit except for mounting connector wiring opening
• For less inductance, #10 AWG tinned copper wire
• MCOV 150

Environmental Specifications

Intertek certified to UL 1449 4th edition surge suppressor with thermal protection designed to open in the event of over heating due to an abnormal over-voltage or temporary overvoltage (TOV) and will interrupt any abnormal current that may be encountered.

Type 1 SPD

VOLTAGE:
120/240 VRMS
SINGLE PHASE, 50/60HZ, MCOV 150V
VOLTAGE PROTECTION RATING – VPR
L-L 1200V, L-G 600
NOMINAL DISCHARGE CURRENT (In) 10 KA
SHORT CIRCUIT CURRENT RATING
SCCR 100 KA
TYPE 3R ENCLOSURE
TYPE 1 SPD
Suitable for 320A ring or ringless style watt hour meter base.

End of Life Failure Mode
While in overvoltage induced thermal runaway, apply 7 KA at 120 VAC. Surge arrester must fail safe without faulting the AC line. No arcing allowed.

Surge arrester fails safe– surge element punctures, safety fuse opens, LED turns off, no fire, slight puff of smoke out connector wiring opening. AC line not faulted. No arcing.

Specification	Value
Enclosure Flammability (550° C or greater)	960° C, UL 94 V1
Ultra-Violet Resistance	Good UV stability in tropical conditions
Thermal Withstand	80° C
Salt-Fog Corrosion Resistance	Chemical resistance
Enclosure Dimensions	2.75” deep X 7” diameter
Recommended Mounting	Form 2S or 12S ring or ringless style