3/6/2021 12:53 PM | |
Joined: 1/17/2011 Last visit: 6/4/2024 Posts: 4 Rating:
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What would be the recommended circuit breaker from the 3RV range for a 3 phase 3 kw 415volt heater? |
3/16/2021 3:28 PM | |
Joined: 6/19/2019 Last visit: 9/5/2024 Posts: 697 Rating:
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Hello, You can read information in internet like here. But I think if heater power is 3000 Wats and you have incoming 3 phases (415 Volts) it take about 7.5 Amps. So I will put 10Amps circuit breaker |
3/15/2022 10:27 AM | |
Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating:
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Hello ALI_N23, Please refer your attached snap (shown in star connection) from your description, the heaters are connected across two phase, since you mentioned voltage as 415 volt, in such case two heaters will be in-series so total load across two phase will be either 2000 Watt (if 1000 watt per heater) or 6000 watt (if 3000 per heater) If heaters are connected across phase & neutral then load will be 1000 Kw & in such case current = kw/ 1/sq. root 3 * voltage i.e. 1000/(1.732*240) = 2.4 A Please check. |
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