Product Introduction
YT-BHZ Frequency Relay Features * For generator protection and control * Measuring voltage: 100V-220V-380V-440Vac * Frequency range: 45…65Hz * Setpoint parameters: * Underfrequency: 0.9…1.0xfn * Overfrequency: 1.0…1.1xfn * Time delay: 0…10s * Contact capacity: 250V-5A (AC) 28V-5A (DC) * Ambient temperature: -25℃…+55℃ * Enclosure protection: IP42. * Vibration resistance: 2-100Hz, ≤0.7g * Withstand voltage: AC2.5kV, 50Hz, 1min * Power consumption: ≤3VA * 35mm DIN rail mounting or base mounting.
Specifications
YT-BHZ Frequency Relay
Features
* For generator protection and control
* Measuring Voltage: 100V-220V-380V-440Vac
* Frequency Range: 45…65Hz
* Setpoint Parameters:
* Underfrequency: 0.9…1.0xfn
* Overfrequency: 1.0…1.1 xfn
* Time Delay: 0…10s
* Contact Capacity: 250V-5A (AC) 28V-5A (DC)
* Ambient Temperature: -25℃…+55℃
* Enclosure Protection: IP42
* Vibration Resistance: 2-100Hz, ≤0.7g
* Withstand Voltage: AC2.5kV, 50Hz, 1min
* Power Consumption: ≤3VA
* 35mm DIN rail mounting or base mounting.
Product Categories
| Model | Function | Weight (kg) |
| YT-BHZ | Frequency relay | 0.4 |
Instructions for Use
1. When the power is connected, the green indicator light will illuminate, indicating that the instrument is in working condition.
2. When an over-frequency event occurs, the ****** indicator light (f>) will illuminate, indicating that the frequency has exceeded the set point and is in an over-frequency state. After a set time delay, the red indicator light (RELAY) will illuminate, indicating that the relay (C) has activated and changed its state.
3. When an under-frequency event occurs, the ****** indicator light (f<) will illuminate, indicating that the frequency has fallen below the set point and is in an under-frequency state. After a set time delay, the red indicator light (RELAY) will illuminate, indicating that the relay (B) has activated and changed its state.



