Dairyland
Over-Voltage Protection 2 (OVP2)
SKU: OVP2
Rugged Over-Voltage Protection
Unlike other “arrester” type over-voltage products, the OVP2 uses solid-state switching components to conduct at very low voltages, providing the most reliable over-voltage protection available to the industry. The OVP2 is rated for AC fault current, and lightning, ensuring peak performance for the product’s long life vastly outperforming other protection products such as spark gap arresters and surge diverters.
Note: the OVP2 is not suitable for applications where steady-state induced AC voltage exists between the connection points.
Key Benefits
- Over-Voltage Protection: Provides over-voltage protection for applications such as isolation joints, including protection against lightning and AC fault current.
- AC and DC Isolation: Provides AC and DC isolation for voltages below the selected voltage blocking level and an effective grounding (or coupling) path whenever voltage attempts to exceed the blocking level.
- Automatic Reset: Instantly switches to the shorted mode when voltage exceeds the selected threshold, providing over-voltage protection. After the event is over, the device automatically switches back to the blocking mode.
- Solid-State Design: Uses proven solid-state components with an instantaneous response to voltage, initiating voltage clamping immediately when voltage attempts to exceed the selected blocking level.
- Fail-Safe and Maintenance-Free: If failure occurs due to AC fault current or lightning impulse current, the device fails in the shorted mode, maintaining an effective grounding path. The OVP2 is completely maintenance-free.
Specifications
- Blocking Voltage Ratings: Standard: -2 V/+2 V; optional: -3 V/+1 V and other lower blocking voltage combinations.
- AC Fault Current Ratings (Amps AC-RMS Symmetrical, 50/60 Hz): 1 cycle: 2,100 A at 1.2 kA, 5,300 A at 2 kA, 6,500 A at 3.7 kA and 8,800 A at 5 kA; 3 cycles: 1,600 A, 4,500 A, 5,000 A and 6,800 A, respectively; 10 cycles: 1,400 A, 3,700 A, 4,200 A and 5,700 A, respectively; 30 cycles: 1,200 A, 2,000 A, 3,700 A and 5,000 A, respectively.
- Maximum Voltage During AC Fault Current: Less than 10 V AC under the maximum fault current ratings.
- Impulse Current Withstand Rating: Standard: 100 kA crest, 8 × 20 microseconds for all models; optional Class N: 50 kA crest, 10 × 350 microseconds for the 5 kA model.
- DC Leakage Current: Normally less than 10 mA at maximum blocking voltage at 20°C and less than 100 mA at 65°C. Under normal cathodic protection voltage, typically well under 1 mA.
- Enclosure: Molded, non-metallic enclosure; IP68 rated to 2 m depth; suitable for indoor or outdoor use in submersible and non-submersible applications.
- Temperature Range: -45°C to +65°C (-49°F to +149°F).
- Electrical Connection: Polarity-marked positive and negative terminals. The negative terminal connects to the more negative structure or structure with cathodic protection; the positive terminal connects to the grounded or more positive structure.
- Mounting: Multiple mounting options available. Optional stainless steel mounting bracket (MTG-OVP2) must be ordered separately.
- Energy Requirements: None. The device is totally passive.
- Number of Operations: Virtually unlimited under rated lightning or AC fault current conditions, provided operations are not immediately repetitive.
- Certifications: Class I, Division 2, Groups A, B, C and D; Zone 2, Group IIC. UL and C-UL certifications for the Class and Division system; ATEX, IECEx and UKEx for the Zone system.
Downloads
Shipping & Returns
Shipping costs and delivery timelines vary by order. All returns require prior written approval and may be subject to a restocking fee.
Please review our Terms & Conditions for complete shipping, return, and warranty details.
