Overview
Henry Series 80 PowerClamp Surge Suppressors
Henry Engineering introduces the PowerClamp series of Transient Voltage Surge Suppression (TVSS) units by Sine Control Technology, Inc. Thousands of these highly effective TVSS units have been in use since the early 1980’s in the defense*, medical, petroleum, and manufacturing industries. Their superb performance and reliability is now available to the broadcasting industry. (*Sine Control has been selected as a Justified Sole Source supplier of TVSS units to the United State Department of Defense.)
Sophisticated broadcast equipment demands clean power. Power line spikes, surges, and waveform distortions will produce system reliability problems, data errors, intermittent or unexplainable operation, computer lockups and failures. PowerClamp TVSS units virtually eliminate the power line spikes and surges that cause these malfunctions and failures.
PowerClamp TVSS units are the most advanced TVSS units in the industry. Their unique design utilizes multi-stage hybrid circuitry to yield clamping levels as low as 2 volts above the AC waveform. Where other units won’t clamp a surge until it’s 500-800 volts above normal voltage, PowerClamp TVSS units instantly attenuate surges within a few volts of the AC waveform. Their highly effective surge suppression and waveform tracking results in superior AC waveform integrity, i.e., “clean power” without spikes, surges, noise, harmonics, or distortion.
PowerClamp TVSS units are designed specifically for broadcast applications. They are ideal for installation at transmitter sites where massive power surges and lightning-induced transients are a major cause of transmitter unreliability and damage. PowerClamp units will drastically reduce tripped breakers, transmitter shutdowns, and prevent or minimize damage to transmitting equipment caused by such power surges.
PowerClamp TVSS units should also be installed at studio locations to prevent power line problems from causing malfunctions and damage to audio/video equipment and computers. PowerClamp units will eliminate power line spikes from entering a facility from the main AC feed line. Their bi-directional design will also prevent power line noise, spikes, and disturbances generated within the facility from being distributed to other equipment.
PowerClamp TVSS units are always installed IN PARALLEL with AC feed lines. They suppress power line spikes and surges by shunting them to ground. PowerClamp units do not need to be “matched” to the equipment they are protecting, nor do they introduce any loss in the line.
The new Series 80 and Series 200 PowerClamp units now offer higher surge-amp capacity, internal LED status indicators, and UL-Listed weatherproof enclosures suitable for indoor or outdoor installation.
Models/Specifications
A certified Electrician should provide assistance in choosing the correct unit
| Model | Service Type | Surge Joules Per Ø | Surge Amps 20 microsec | Modes of Protection | Connection Wiring |
| HP200-1-TX | 120/240V 1Ø | 3,350 | 200,000 | L-L/L-G | 2-L, 1-G |
| *HP200-2 | 120/240V 1Ø | 3,350 | 200,000 | L-L/L-N/L-G/N-G | 2-L, 1-N, 1-G |
| HP200-3 | 120/208V 3Ø WYE | 3,350 | 200,000 | L-L/L-G | 3-L, 1-G |
| *HP200-4 | 120/208V 3Ø WYE | 3,350 | 200,000 | L-L/L-N/L-G/N-G | 3-L, 1-N, 1-G |
| HP200-7 | 277/480V 3Ø WYE | 10,185 | 200,000 | L-L/L-G | 3-L, 1-G |
| *HP200-8 | 277/480V 3Ø WYE | 10,185 | 200,000 | L-L/L-N/L-G/N-G | 3-L, 1-N, 1-G |
| *HP200-9 | 120 HI LEG/208 3Ø WYE | 10,185 | 200,000 | L‐L/L‐N/L‐G/ N‐G | 3‐L, N, G |
L-L = line to line; L-N = line to neutral; L-G = line to ground; N-G = neutral to ground common mode*
*With Neutral-to-Ground Common Mode protection: needed when not installed at main panel where Neutral and Ground are tied.
- Response time: 1-2 nanoseconds
- Maximum leakage current: 6mA/phase
- Fusing: One fuse per phase with failure indicator LEDs
- Minimum Humidity Range: 5% to 97%
- Operating temperature: -20ºC (-68º F) to 70º C (158º F) ambient temperature
- Dimensions: 8.25" wide, 11.5" high, 6" deep (HP200-1-TX: 6.5” wide, 6” high, 3.5” deep)
- Shipping weight: approximately 10 lbs. (including packaging)
- 5 Year pro-rated Limited Replacement Warranty
