Telecom/Datacom Surge Protection Products
ESP Series


ESP modules are solid-state surge protectors for Key/PABX Extension pairs. These secondary protectors are intended to be used in conjunction with proper primary surge protectors (UL497)

Several ESP modules are designed for low voltage circuits without the presence of ring voltage: The ESP-050 or ESP-050T is the most popular model for digital telephone extension pairs. The ESP-200 or ESP-200T are designed for analog Key/PABX extensions with the presence of ring voltage.

Features & Benefits

bullet1 Nanosecond Response Time
bulletState-of-Art Silicon Technology
bulletLine-to-Line Protection
bulletLine-to-Ground Protection
bulletOptional Polyswitch Resettable Fusing - VI{2's
bulletOver-current Protection
bulletReplaces Bridging Clips on MI-50 Block
bulletUL Listed 497A
bulletUtilizes MGB Grounding Rail



Caution: The hybrid design of this product includes series resistance. Do not place this product in service on any signal lines capable of supplying more than 150 milliamperes continuously.

US PATENT NO. 4,703,983

MGB Ground Rail - Designed to fit standard 66M1-50 Punch Down Block. Allows TSP, COHP, OPX, ESP Series and other similar Surge Suppressors to access ground when snapped onto the 66M1-50 Punch Down Block.

The Std. 66M1-50 Block is capable of terminating 24 to 20 AWG solid wire.

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