Today's Digital QC is the evolution of the original, ground-breaking ESP design which came to market in the 1980s. To this day it remains one of the best selling professional-grade surge protectors in the world - having sold millions of units. It offers very powerful protection but without the advanced monitoring and diagnostic capability of the Next Gen and enVision products.
Unlike standard surge protectors and power strips that use only metal oxide varistors (MOV), the Digital QC combines gas tubes, silicone avalanche diodes and metal oxide varistors into a patented circuit that does not degrade over time and provides very robust protection.
Like all ESP products, the Digital QC is proudly made in the USA with the highest quality components.
The Digital QC offers comprehensive power protection to safeguard equipment from the dangers associated with damaging surges, spikes, over voltage, EMI/RFI noise and wiring faults.
The Digital QC is available in a variety of voltage/amperage configurations. Many models also have Cat5e ETL verified network (RJ-45) and telephone line (RJ-11) surge protection to protect network interface circuits. See the pull-down menu above for the various models. The D5 series also includes power over Ethernet protection.
Note: plug and outlet types as well as phone/network connections will vary from model to model. The product images may not illustrate the exact configurations.
Dimensions - Length: 8.8"
Dimensions - Width: 6.25"
Dimensions - Height: 2.2"
Shipping Weight: 2.8 lbs
Input Connection: AC 3' cord with plug (type depends upon model)
Flexible Output Connection: AC 6" cord with (1) receptacle (type depends upon model)
Additional AC Output Connection: 1 or 2 flush receptacles (depending upon model)
Maximum Line Voltage: 140VAC
Maximum Load Current: 15A or 20A (depending upon model)
* Reverse Polarity Green Light = OK
* Open Ground Green Light = OK
Leakage Current: <3.5 mA
Steady State Efficiency: >99.2% @ 15A >99% @ 20A
Thru-put Resistance: <0.033 Ohm
Patented Hybrid Circuitry: Yes
Response Time: < 5 nS
Sine Wave Tracking: Yes
Clamp Voltage 6kV 3kA - Normal Mode: 306V peak
Clamp Voltage 6kV 3kA - Common Mode: 299V peak (L-G)
Clamp Voltage 6kV 3kA - Common Mode: 70V peak (N-G)
Maximum Surge Current Withstand for 20 μsec: 13000A peak
Residual Energy Let-thru in Joules (less is better)
-All Modes IEEE C62.41 Category A Ringwave: 0.03J
-All Modes IEEE C62.41 Category B Ringwave: 0.05J
-All Modes IEEE C62.41 Category B Impulse: 0.76J
-All Modes UL 1449 Impulse: 0.19J
--Total Residual Energy Let-thru All Modes: 1.03J
Neutral-Ground Let Through Voltage: < 0.5V
Lowest UL 1449 Rating: 330V
>10 dB (3.16 times Reduction Factor): 1 kHz - 30 MHz
>20 dB (10 times Reduction Factor): 6 kHz - 30 MHz
>30 dB (31.6 times Reduction Factor): 45 kHz - 23 MHz
>40 dB (100 times Reduction Factor): 65 kHz - 15 MHz
Filter Order: 2nd
>10 dB (3.16 times Reduction Factor): 2 kHz - >30 MHz
>20 dB (10 times Reduction Factor): 7 kHz - >30 MHz
>30 dB (31.6 times Reduction Factor): 149 kHz - > 19 MHz
>40 dB (100 times Reduction Factor): 6 MHz - 8 MHz
Filter Order: 3rd
Sine Wave Tracking: yes
Connections: RJ-11 in/out
Thru-put Resistance: 14 ohms
Response Time: < 25 nS
Clamp Voltage FCC Part 68 Metallic Waveform: 329V
Clamp Voltage FCC Part 68 Longitudinal Waveform: 347V
Maximum Surge Current Withstand for 160 μsec: 200A
Residual Energy Let-thru in Joules
-All Modes FCC Part 68 Longitudinal Waveform (less is better): 3.6J
Network Connections: RJ-45 in/out
Protected Lines: all
Clamp Voltage: 8V
Peak Pulse Power: 1.5kW
Response Time: <1 Pico Second
Ethernet Data Transmission: Cat 5e 10/100/1000 Base Tx
Best UL 1449 Rating in the Industry: 330 V
Exceeds ANSI/IEEE C62.41 Catergory A&B: >10000 hits
Withstands FCC Part 68 Surge Standard: Yes
Complies with UL 497A & B Standards: Yes
Complies with UL 498 Plug & Receptacles: Yes
Complies with UL 991 Reliabilty Standard: Yes
Complies with UL 1283 EMI Filter Standard Full EMI filter
Mil Std 40 Year Design Life No time limit warranty
Safety Certified: UL-1449 Standard, ETL Listed
IN STOCK - ships in 2-3 business days Interface cable to connect an ESP Next Gen or enVision surge protector to a computer via the USB port.View full product details