Schneider voltage protector EOVR-380R7 substitute

EVR-3P44 is a direct and reliable alternative model to Schneider EOVR-380R7The function, voltage range, reset method, and installation are all compatible, and can be replaced without modification.

1、 Model positioning and substitution relationship

EOVR-380R7It's from Schneider's EOCR seriesSingle phase/three-phase overvoltage protection relay(R7 represents automatic reset type), rated voltage AC380V, focusing only on overvoltage protection.EVR-3P44For the new generation of three-phase voltage protection relays, it integrates full functions of overvoltage, undervoltage, phase loss, reverse phase, and three-phase imbalance. The voltage covers 200-440V AC and can cover 380V application scenarios of EOVR-380R7, making it a standard upgrade alternative.

2、 Comparison of core parameters and functions (replacement key)

1. Voltage and protection range

• EOVR-380R7Only overvoltage protection, set rangeAC380–460VNo undervoltage, phase loss, or imbalance protection.

• EVR-3P44Overvoltage200–550VUnder voltage140–440VAdjustable; NewPhase loss, reverse phase, three-phase imbalanceProtection; Rated voltage reference200–440VAdjustable and compatible with 380V system.

2. Reset and time parameters

• EOVR-380R7Automatic reset (R-type), reset time0.5–30s; Release delay0.2–10s.

• EVR-3P44: SupportManual (N-type)/Automatic (R-type)Dual mode; Automatic reset time0.5–30sAdjustable; The release delay can be set to match the prototype number.

3. Accuracy and output

• EOVR-380R7Voltage accuracy±5%; Output1C（SPDT）Contact point, AC250V/3A。

• EVR-3P44: Improved accuracy to±2%; Output1C（SPDT）， AC15:2A/240V， Contact capacity compatibility.

4. Installation and Dimensions

• EOVR-380R735mm rail installation.

• EVR-3P44：35mm rail/panelDual installation; Size62(W)×89.5(D)×75(H)mmCompatible with the installation holes of the prototype number.

3、 Key points of replacement operation

1. Selection confirmation: Directly selectEVR-3P44-R(Automatic reset type), consistent with the reset logic of EOVR-380R7.

2. Parameter Settings：

• The rated voltage (VN) knob is set to380V.

• Adjust the overvoltage (OV) knob according to the original EOVR-380R7 setting value (such as 420V, 440V, etc.).

• Under voltage (UV) can be turned on or off as needed.

• Reset the dial code toR-type (automatic reset)The reset time is consistent with the prototype number.

3. wiringThree phase voltage connected to L1/L2/L3; The output contacts 95-96 (normally closed) and 95-98 (normally open) are consistent with the prototype number, and the wiring can be directly replaced.

4. debugAfter powering on, use the TEST button to self check and confirm that the PWR and TRIP indicator lights are normal and the protection action is reliable.

4、 Replacing advantages,Schneider voltage protector EOVR-380R7 substitute

• More comprehensive functionalityAdd undervoltage, phase loss, reverse phase, and imbalance protection on the basis of overvoltage, providing better protection.

• higher accuracy± 2% accuracy, more precise actions, reducing misoperation.

• Strong compatibilityVoltage, reset, installation, and wiring are fully compatible, without the need to modify the cabinet or wiring.

• Reliability improvementNew generation circuit design with stronger anti-interference and environmental adaptability.

EOCR, also known as Electronic Over Current Relay, is an intelligent motor comprehensive protector under Schneider Electric (formerly Sanhe, South Korea). It is used to comprehensively protect three-phase/single-phase motors from overload, phase loss, locked rotor, grounding and other faults and damages. The brand was originally owned by SAMWHA in South Korea and was acquired by Schneider Electric in 2001. It is now Schneider's core motor protection product.

Tangshan Hanya Electrical Equipment Co., Ltd. is the core agent of Schneider EOCR (formerly known as Sanhe) motor protector marketing service center in China. Responsible for the sales and technical services of products in the national market, we are a professional service provider for the national market. The company specializes in Schneider EOCR's full range of motor protection products, covering various motor protection functions such as overload, phase loss, locked rotor, three-phase imbalance, undercurrent, grounding, and reverse rotation. They are widely used in industries such as metallurgy, power, petroleum, chemical, cement, coal, and machinery manufacturing.

We provide original factory guarantees, professional selection and configuration, on-site debugging guidance, fault solutions, and after-sales support to customers across the country. With stable and reliable product quality, sufficient stock supply, and fast response services, we help customers ensure the safe operation of motor systems, reduce equipment failures, and improve operation and maintenance efficiency. We are a long-term partner in the field of industrial motor protection.

Schneider voltage protector EOVR-380R7 substitute

This product adopts standard size design, supports 35mm rail installation or panel installation, and has a working temperature range of -20 ° C~60 ° C. It is suitable for various industrial environments, distribution cabinets, and automation systems with high power supply quality requirements. It is a commonly used protective element for stable operation of three-phase equipment.Three phase voltage protector

EOCR, also known as Electronic Over Current Relay, is an intelligent motor comprehensive protector under Schneider Electric (formerly Sanhe, South Korea). It is used to comprehensively protect three-phase/single-phase motors from overload, phase loss, locked rotor, grounding and other faults and damages. The brand was originally owned by SAMWHA in South Korea and was acquired by Schneider Electric in 2001. It is now Schneider's core motor protection product.

Tangshan Hanya Electrical Equipment Co., Ltd. is the core agent of Schneider EOCR (formerly known as Sanhe) motor protector marketing service center in China. Responsible for the sales and technical services of products in the national market, we are a professional service provider for the national market. The company specializes in Schneider EOCR's full range of motor protection products, covering various motor protection functions such as overload, phase loss, locked rotor, three-phase imbalance, undercurrent, grounding, and reverse rotation. They are widely used in industries such as metallurgy, power, petroleum, chemical, cement, coal, and machinery manufacturing.

We provide original factory guarantees, professional selection and configuration, on-site debugging guidance, fault solutions, and after-sales support to customers across the country. With stable and reliable product quality, sufficient stock supply, and fast response services, we help customers ensure the safe operation of motor systems, reduce equipment failures, and improve operation and maintenance efficiency. We are a long-term partner in the field of industrial motor protection.