The RH21M Earth Leakage Relay is a critical component for electrical safety and protection. It is designed to detect and respond to earth leakage faults in electrical circuits. With a sensitivity of 300 mA and a response time of 0.06 seconds, it provides quick and reliable protection.
Key Features:
Sensitivity: With a 300 mA sensitivity, it can detect low-level earth leakage faults, preventing electrical hazards.
Fast Response: The relay responds in just 0.06 seconds, minimizing the impact of electrical faults.
Voltage Compatibility: Designed for use with 240 V electrical systems.
Reliable Protection: Provides effective protection against earth leakage faults, ensuring the safety of people and property.
The RH21M Earth Leakage Relay is an essential component for preventing electrical hazards and is crucial for ensuring the safety of electrical installations. Schneider Electric's reputation for reliability and performance makes this relay a dependable choice for a wide range of applications.
| Specifications | |
|
Main |
|
| Range | VigiPacT |
| device short name | RH99M |
| Product or component type | Residual current protection relay |
| Relay application | Protection relay |
| mounting support | DIN rail |
| Earth-leakage protection class | Type A |
| Type of setting | Selector |
| Residual earth-leakage sensitity adjustment type | Adjustable 9 settings |
| Earth-leakage sensitivity | 0.03…30 A |
| Earth-leakage time delay | Instantaneous for 0.03 A |
| Adjustable 9 settings 0…4.5 s for 0.03…30 A | |
| Current sensors compatibility | VigiPacT TOA earth leakage current sensor |
| VigiPacT A earth leakage current sensor | |
| VigiPacT L earth leakage current sensor | |
| [Ithe] conventional enclosed thermal current | 8:00 AM |
| Minimum load | 10 mA at 12 V |
| [Us] rated supply voltage | 380...415 V AC 50/60 Hz 55...110 % |
| Power consumption in VA | 4 VA |
| Monitored distribution system | 1000 V - AC at 50/60 Hz (maximum) |
| 1000 V - AC at 400 Hz (maximum) | |
| Earthing system | TT |
| IT | |
| TN-S | |
| [Uimp] rated impulse withstand voltage | 8 kV |
| Reset | Manual reset |
| Complementary | |
| Test function | Local |
| Remote test | |
| Monitoring | Electronics (continuous) |
| Power supply (continuous) | |
| Relay/sensor link (continuous) | |
| Type of measurement | Earth fault current internal measurement, range: 80...100 % |
| Tamperproof of settings | Protected by sealable cover |
| Connections - terminals | Auxiliary power supply: terminal block cable(s) 0.2…2.5 mm² flexible AWG 24...AWG 12 |
| Auxiliary power supply: terminal block cable(s) 0.2…2.5 mm² rigid AWG 24...AWG 12 | |
| Auxiliary power supply: terminal block cable(s) 0.25…2.5 mm² flexible AWG 24...AWG 12 | |
| Fault: screw terminal cable(s) 0.2…2.5 mm² flexible AWG 24...AWG 12 | |
| Fault: screw terminal cable(s) 0.2…4 mm² rigid AWG 24...AWG 12 | |
| Fault: screw terminal cable(s) 0.25…2.5 mm² flexible AWG 24...AWG 12 | |
| Relay test and fault reset: screw terminal cable(s) 0.14…1 mm² flexible AWG 26...AWG 16 | |
| Relay test and fault reset: screw terminal cable(s) 0.14…1.5 mm² rigid AWG 26...AWG 16 | |
| Relay test and fault reset: screw terminal cable(s) 0.25…0.5 mm² flexible AWG 26...AWG 16 | |
| Sensor: screw terminal cable(s) 0.14…1 mm² flexible AWG 26...AWG 16 | |
| Sensor: screw terminal cable(s) 0.14…1.5 mm² rigid AWG 26...AWG 16 | |
| Sensor: screw terminal cable(s) 0.25…0.5 mm² flexible AWG 26...AWG 16 | |
| Voltage presence: screw terminal cable(s) 0.2…2.5 mm² flexible AWG 24...AWG 12 | |
| Voltage presence: screw terminal cable(s) 0.2…4 mm² rigid AWG 24...AWG 12 | |
| Voltage presence: screw terminal cable(s) 0.25…2.5 mm² flexible AWG 24...AWG 12 | |
| Wire stripping length | Auxiliary power supply: 7 mm for top connection |
| Fault: 8 mm for bottom connection | |
| Relay test and fault reset: 5 mm for bottom connection | |
| Sensor: 5 mm for top connection | |
| Voltage presence: 8 mm for bottom connection | |
| Tightening torque | Auxiliary power supply: 0.6 N.m top |
| Fault: 0.6 N.m bottom | |
| Relay test and fault reset: 0.25 N.m bottom | |
| Sensor: 0.25 N.m top | |
| Voltage presence: 0.6 N.m bottom | |
| 9 mm pitches | 6 |
| Width | 54 mm |
| height | 81 mm |
| Depth | 74 mm |
| Net weight | 0.3 kg |
| IP degree of protection | IP40 on front face: conforming to EN/IEC 60529 |
| IP30 on side parts: conforming to EN/IEC 60529 | |
| IP20 on connection terminals: conforming to EN/IEC 60529 | |
| IK degree of protection | IK07 conforming to EN 50102 |
| Mechanical robustness | Fire resistance conforming to IEC 60695-2-1 |
| IK protection 2 joules: IK07 conforming to EN 50102 | |
| Vibrations 13.2...100 Hz: 0.7 g | |
| Vibrations 2...13.2 Hz: +/- 1 mm | |
| Environment | |
| Overvoltage category | IV |
| Electrical shock protection class | Class II |
| Electromagnetic compatibility | Conducted and radiated emissions: , B, conforming to CISPR 11 |
| Conducted radio-frequency immunity test: , 3, conforming to IEC 61000-4-6 | |
| Electrostatic discharge immunity test: , 4, conforming to IEC 61000-4-2 | |
| High-energy conducted susceptibility: , 4, conforming to IEC 61000-4-5 | |
| Low-energy conducted susceptibility: , 4, conforming to IEC 61000-4-4 | |
| Radiated susceptibility: , 3, conforming to IEC 61000-4-3 | |
| Relative humidity | 95 % at 55 °C |