OVT-X1 Overvoltage Release

OVT X1 Accessories (Final Power Distribution)

OVT X1 Accessories (Final Power Distribution) Front

OVT X1 Accessories (Final Power Distribution) Side 1

OVT X1 Accessories (Final Power Distribution) Side 2

OVT X1 Accessories (Final Power Distribution)

OVT X1 Accessories (Final Power Distribution) Front

OVT X1 Accessories (Final Power Distribution) Side 1

OVT X1 Accessories (Final Power Distribution) Side 2

OVT-X1 Overvoltage Release

The OVT-X1 Overvoltage Release is an accessory designed to provide overvoltage protection for CHINT’s NXB-63 and NXB-40 circuit breakers. When the main circuit voltage exceeds 280V ±5%, the OVT-X1 automatically trips the connected circuit breaker, preventing damage to electrical systems. It operates reliably within 85%–110% of rated voltage (AC 240V, 50/60Hz), ensuring consistent performance. Compact, easy to mount on TH35-7.5 DIN rails, and durable with over 4000 operation cycles, it is ideal for residential and light commercial protection.

Product Information

Function: Trips circuit breaker when voltage exceeds the safe threshold (overvoltage protection)
Compatible Devices: NXB-63 and NXB-40 series circuit breakers
Rated Operating Voltage (Ue): AC 240V, 50Hz (or 60Hz)
Rated Insulation Voltage (Ui): 500V
Overvoltage Setting (Uvo): 280V ±5%
Operational Range: Maintains normal operation from 85%–110% Ue
Tripping Action: Automatically trips breaker at 280V ±5% to prevent equipment damage
Mechanical & Electrical Life: ≥4000 cycles
Mounting Type: TH35-7.5 steel DIN rail
Installation Position: Left side of the circuit breaker (remove cover before assembly)
Dimensions (mm):
- Height: 79
- Width: 18
- Depth: 43.5
Mounting hole spacing: 76.7 ±1.2
Certification: RoHS compliant

Name

Size

Release time

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OVT-X1-ACCESSORIES-(FINAL-POWER-DISTRIBUTION)-Catalog.pdf

370.19KB

2025-12-04

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Size

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2004-OVT-X1-Accessories (Final Power Distribution)-Manual.pdf

831.07KB

2024-09-22

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Release time

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OVT-X1-Accessories (Final Power Distribution)-Drawing-3D.igs

2024-09-22

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OVT-X1-Accessories (Final Power Distribution)-Drawing-2D.dwg

5.98MB

2024-09-22

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FAQs

What is the purpose of the OVT-X1 Overvoltage Release?

The OVT-X1 protects electrical circuits by tripping the circuit breaker when the voltage exceeds 280V ±5%, preventing overvoltage damage to connected equipment.

Which circuit breakers are compatible with OVT-X1?

It is specifically designed for CHINT’s NXB-63 and NXB-40 series miniature circuit breakers, ensuring seamless installation and reliable operation.

How is the OVT-X1 installed?

Mount the OVT-X1 on the left side of the breaker, secure it on a TH35-7.5 DIN rail, and ensure proper alignment before use. The installation diagram in the catalog provides clear visual guidance.

What is its operating range?

The release functions reliably between 85% and 110% of the rated voltage (240V AC) and trips automatically once the voltage exceeds 280V ±5%.

How durable is the OVT-X1?

It is rated for over 4000 mechanical and electrical operations, ensuring long-term, maintenance-free performance.