Mersen Surge Protection & Filters

Mersen’s surge protectors and filters prevent transient overvoltage, noise, and power disturbances from affecting the reliability and availability of sensitive electrical and electronic systems. They are typically used in industrial automation and power distribution applications such as process control, renewable energy, transportation, or data processing, where lightning, switching surges, or electromagnetic interference could cause equipment failure or disruption. Mersen’s surge protectors and filters ensure continuity of service and prevent long-term degradation of system performance.

Surge protection devices are used to shunt or clamp transient voltage surges to a safe level before they can damage equipment. Common applications include: service entrance protection; distribution panel protection; control panel and automation cabinet protection for PLCs, HMIs, power supplies, AC drives and communication equipment. Their fast response time and high energy absorption capability minimize equipment failure and prolong lifespan.

Found 243 items
Normally In Stock
Mersen STXP120P10XP T1 100kA 120V 1P
Free U.S Ground shipping
$1182.71
$985.59
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Mersen STXP120P10AXP T1 100kA 120V 1P ALM
Free U.S Ground shipping
$1372.09
$1143.41
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Mersen STXP208Y10ALXP T1 100kA 208Y/120V ALM LL
Free U.S Ground shipping
$1517.68
$1264.73
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Mersen STZ208Y10BRZB RB 100kA 208Y/120V
Free U.S Ground shipping
$4489.00
$3740.83
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Mersen STZ208Y10BRUZB RB 100kA 208Y/120V SW
Free U.S Ground shipping
$4809.65
$4008.04
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Mersen STZ240S10BRZB RB 100kA 240/120V SP
Free U.S Ground shipping
$4489.00
$3740.83
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Mersen STZ240S10BRUZB RB 100kA 240/120V SP SW
Free U.S Ground shipping
$4809.65
$4008.04
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Mersen STXP240P10XP T1 100kA 240V 1P
Free U.S Ground shipping
$1141.61
$951.34
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Mersen STXP240P10AXP T1 100kA 240V 1P ALM
Free U.S Ground shipping
$1324.40
$1103.67
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Mersen STXP240D10ALXP T1 100kA 240V DELTA ALM LL
Free U.S Ground shipping
$1548.59
$1290.49
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Mersen STXT240P10XT T1 100kA 240V 1P
Free U.S Ground shipping
$1700.68
$1417.23
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Mersen STXT240P10AXT T1 100kA 240V 1P ALM
Free U.S Ground shipping
$1882.79
$1568.99
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Mersen STZ240D10BRZB RB 100kA 240V DELTA
Free U.S Ground shipping
$4489.00
$3740.83
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Mersen STZ240D10BRUZB RB 100kA 240V DELTA SW
Free U.S Ground shipping
$4809.65
$4008.04
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Mersen STXT380Y10XT T1 100kA 380Y/220V
Free U.S Ground shipping
$1818.72
$1515.60
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Mersen STXT380Y10AXT T1 100kA 380Y/220V ALM
Free U.S Ground shipping
$2008.10
$1673.42
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Mersen STZ380Y10BRZB BR 100kA 380Y/220V
Free U.S Ground shipping
$4219.10
$3515.92
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Mersen STZ380Y10BRUZB BR 100kA 380Y/220V Int U
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$5108.57
$4257.14
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Mersen STZ380Y10BQZB QB 100kA 380Y/220V
Free U.S Ground shipping
$2627.34
$2189.45
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Mersen STZ380Y10B1ZB T1 100kA 380Y/220V N1
Free U.S Ground shipping
$5665.81
$4721.51
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Mersen STZ380Y10B1TZB T1 100kA 380Y/220V N1 T
Free U.S Ground shipping
$7278.50
$6065.42
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Mersen STZ380Y10BXZB T1 100kA 380Y/220V N4X
Free U.S Ground shipping
$7359.20
$6132.67
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Mersen STZ380Y10BXTZB T1 100kA 380Y/220V N4X T
Free U.S Ground shipping
$9916.73
$8263.94
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Mersen STXP480H10AXP T1 100kA 480/240V HL ALM
Free U.S Ground shipping
$1492.28
$1243.57
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Mersen STXP480S10XP T1 100kA 480/240V SP
Free U.S Ground shipping
$1247.03
$1039.19
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Mersen STXP480D10ALXP T1 100kA 480V DELTA ALM LL
Free U.S Ground shipping
$1548.59
$1290.49
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Mersen STXP480B10XP T1 100kA 480V CORNER GROUND
Free U.S Ground shipping
$1325.64
$1104.70
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Mersen STXP480B10AXP T1 100kA 480V CORNER GROUND
Free U.S Ground shipping
$1515.02
$1262.52
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Mersen STZ480D10BRZB RB 100kA 480V DELTA
Free U.S Ground shipping
$4489.00
$3740.83
Normally In Stock
Mersen STZ480D10BRUZB RB 100kA 480V DELTA SW
Free U.S Ground shipping
$4809.65
$4008.04
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Mersen STXP480Y10ALXP T1 100kA 480Y/277V ALM LL
Free U.S Ground shipping
$1590.04
$1325.03
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Mersen STZ480Y10BRZB RB 100kA 480Y/277V
Free U.S Ground shipping
$4489.00
$3740.83
Normally In Stock
Mersen STZ480Y10BRUZB RB 100kA 480Y/277V SW
Free U.S Ground shipping
$4809.65
$4008.04
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Mersen STZ600Y10BRZB BR 100kA 600Y/347V
Free U.S Ground shipping
$4489.00
$3740.83
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Mersen STZ600Y10BRUZB BR 100kA 600Y/347V Int U
Free U.S Ground shipping
$4809.65
$4008.04
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Mersen STZ600Y10BQZB QB 100kA 600Y/347V
Free U.S Ground shipping
$4489.00
$3740.83
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Mersen STZ600Y10B1ZB T1 100kA 600Y/347V N1
Free U.S Ground shipping
$4809.65
$4008.04
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Mersen STZ600Y10B1TZB T1 100kA 600Y/347V N1 T
Free U.S Ground shipping
$5130.28
$4275.23
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Mersen STZ600Y10BXZB T1 100kA 600Y/347V N4X
Free U.S Ground shipping
$5611.25
$4676.04
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Mersen STZ600Y10BXTZB T1 100kA 600Y/347V N4X T
Free U.S Ground shipping
$5931.88
$4943.23
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Mersen 83230302SPD T2+3,10kA,Uc420V,C12
Free U.S Ground shipping
$238.60
$198.83
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Mersen 83120102SPD T1+2,12.5kA,Uc275V,L-N,1P,
Free U.S Ground shipping
$499.22
$416.02
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Mersen 83120103SPD T1+2,12.5kA,Uc275V,L-N,R
Free U.S Ground shipping
$589.09
$490.91
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Mersen 83120141SPD T1+2,12.5kA,Uc320V,3+1,R
Free U.S Ground shipping
$1810.97
$1509.14
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Mersen 83120147SPD T1+2,12.5kA,Uc320V,4+0,R
Free U.S Ground shipping
$1738.54
$1448.78
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Mersen STZ208Y15BQZB QB 150kA 208Y/120V
Free U.S Ground shipping
$4952.02
$4126.68
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Mersen STZ208Y15BRZB RB 150kA 208Y/120V
Free U.S Ground shipping
$5130.28
$4275.23
Normally In Stock
Mersen STZ208Y15BRUZB RB 150kA 208Y/120V SW
Free U.S Ground shipping
$5450.93
$4542.44

FAQs 

What are Mersen surge protection devices used for?

Mersen surge protection devices are used to protect industrial electrical and electronic equipment from transient voltage spikes caused by lightning, switching events, and power disturbances.

Where are Mersen surge protection devices commonly installed?

They are commonly installed at service entrances, power distribution panels, control panels, and near sensitive equipment such as PLCs, HMIs, power supplies, drives, and communication devices.

What do Mersen power line filters do?

Mersen power line filters reduce electrical noise such as EMI and RFI on power lines, helping prevent interference-related faults and improving the reliability of industrial automation systems.

Why are surge protection and filters important in industrial systems?

They are important because industrial systems rely on sensitive electronics that can be damaged or disrupted by voltage spikes and electrical noise, leading to downtime and equipment failure.

How do Mersen surge protection and filters improve system reliability?

By limiting overvoltage events and suppressing electrical noise, Mersen surge protection and filters help prevent equipment damage, reduce errors, and support long-term stable operation.