OVT-X3 Overvoltage release

OVT X3 Accessories (Final Power Distribution) Side

OVT X3 Accessories (Final Power Distribution)

OVT X3 Accessories (Final Power Distribution) Side

OVT X3 Accessories (Final Power Distribution)

OVT-X3 Overvoltage release

The OVT-X3 Overvoltage Release is designed to integrate with NXB-125 series circuit breakers, providing automatic protection against abnormal overvoltage conditions. Operating at AC 230V 50/60Hz, it detects voltage surges beyond the safe limit (280V ±5%) and triggers the breaker to disconnect the circuit. Compact, reliable, and easy to install on TH35-7.5 DIN rails, the OVT-X3 ensures enhanced safety for residential and commercial power distribution systems.

Product Information

Function: Provides automatic circuit disconnection under overvoltage conditions when paired with NXB-125 series circuit breakers
Rated Operating Voltage (Ue): AC 230V, 50Hz / 60Hz
Rated Insulation Voltage (Ui): 500V
Overvoltage Setting Value (Uvo): 280V ±5%
Action Characteristics:
- Reliable operation within 85%–110% of Ue
- Trips the connected breaker when voltage rises to 280V ±5%
Compatible Circuit Breaker: NXB-125 series
Mechanical and Electrical Life: 4000 operation cycles
Mounting Method: TH35-7.5 steel DIN rail
Installation Process:
- Remove the left cover of the circuit breaker
- Attach the OVT-X3 module to the breaker
- Mount the assembly on the TH35-7.5 rail
Dimensions:
- Height: 81 mm
- Width: 18 mm
- Depth: 75.2 ±1.2 mm
Mounting hole distance: 45 ±0.3 mm; slot size 50.5 ±0.3 mm (Figure 3, p.137)
Certifications: RoHS compliant

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Release time

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OVT-X3-Accessories-catalog.pdf

251.65KB

2025-06-13

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Name

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Release time

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2004-OVT-X3-Accessories (Final Power Distribution)-Manual.pdf

454.93KB

2024-09-22

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FAQs

What is the primary function of the OVT-X3 Overvoltage Release?

It safeguards connected equipment by automatically tripping the circuit breaker when the voltage exceeds 280V, preventing potential damage from power surges.

Which circuit breakers can the OVT-X3 be used with?

The OVT-X3 is designed for seamless integration with CHINT’s NXB-125 series circuit breakers, ensuring compatibility and reliable performance.

How is the OVT-X3 installed?

Simply remove the left cover of the NXB-125 breaker, attach the OVT-X3 module, and mount the assembly on a TH35-7.5 steel DIN rail.

What happens when an overvoltage occurs?

When the line voltage exceeds 280V ±5%, the OVT-X3 triggers the breaker to disconnect the circuit, protecting downstream equipment and ensuring system safety.

How long does the device last?

The OVT-X3 offers a mechanical and electrical lifespan of 4000 operations, ensuring durable and reliable overvoltage protection for long-term use.