TES 240 MSA
Introducing the TES 240 MSA Surge Arrester, installed at wattmeter, locations for residential and light industrial applications. The TES 240 MSA 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.
Specs
40,000 Amp peak capability, each VAC leg 210 VAC, continuous 5 minutes, temporary overvoltage clamping capability.
Lowest, reliable voltage clamping level Safety fusing, both 120 VAC legs, patented LED "unit good" indicators, both 120 VAC legs Fire proof and explosion proof polycarbonate glass-fiber reinforcement enclosed with matching mounting connector Sealed units except for mounting connector wiring opening For less inductance, #10 AWG tinned wires. Competitive pricing
Electrical Ratings
| Maximum Peak Surge Current (each 120 VAC leg) |
Excellent |
| Maximum Clamping Voltage Level |
Very Good |
| Start Clamping Voltage Level |
Very Good |
| Accelerated Life Test - look at the test results and the guidelines for testing of TESCO products. |
Surge Arrester still in excellent condition at end of tests. No arcing. |
| Temporary Overvoltage - continuous, 5 minutes, maximum line voltage without thermal runaway. Must be 185 VAC or greater. |
Excellent |
| End of Life Failure Mode |
Surge Arrester still in excellent condition at end of tests. No arcing. |
| Enclosure Flammability (550C or greater) | 960C, UL 94 V1 |
| Ultra-Violet Resistance | Good UV stability in tropical conditions |
| Salt-Fog Corrosion Resistance | Very good |
| Enclosure dimensions | ********** |
| Recommendation "Hole Size" for Mounting Connector | ********** |
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| 120 VAC - 240 VAC Surge Arrester for residential and light industrial usage. Installed at wattmeter, safely clamps and dissipates lightning induced AC line high voltage current impulses going to a residence, apartment or a light industrial building. |









