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The RDQ3NMB Series CB Class Automatic Transfer Switch is a rugged solution designed for extreme industrial environments, ensuring reliable power transfer and fault protection in dusty, wet, and high-temperature settings. Engineered with reinforced circuit breakers and durable enclosures, this switch withstands harsh conditions while delivering superior performance.
Extreme Environment Resistance:
IP66-rated enclosure (NEMA 4X) with gasketed doors, protecting against water jets (80 bar pressure) and dust ingress (ISO 20653), suitable for washdown areas.
Temperature range: -40°C to +70°C, with anti-condensation heaters and forced-air cooling for arctic and desert applications.
Heavy-Duty Performance:
Rated for 600A (3-phase) at 600V AC, with bolted pressure contacts (torque 12-15Nm) for low-resistance connections, reducing power loss by 15%.
UL 1008 Type 4X listed, with salt spray resistance (1000 hours, ASTM B117) and UV stabilization (QUV 500 hours) for coastal and outdoor use.
Advanced Fault Protection:
Dual-magnetic circuit breakers (thermal-magnetic trip units), distinguishing between overloads and short circuits for precise fault isolation.
Ground fault protection (GFP) optional (30mA-5A sensitivity), compliant with NEC 210.8 and IEC 62305-3 for lightning protection.
Modular Design for Easy Maintenance:
Removable circuit breaker modules (30-minute replacement), with labeled terminals and color-coded wiring for quick troubleshooting.
Optional vibration mounts (ISO 1940-1 G2.5), reducing stress on internal components in machinery rooms (vibration ≤2.5mm/s).
Suited for harsh industrial settings, the RDQ3NMB Series is used in:
Oil & Gas Refineries: Powers pumps, valves, and control systems in explosive atmospheres (ATEX Zone 2 certified models available).
Cement Plants: Withstands high dust levels (SiO2 exposure) in kiln drives, conveyor belts, and dust collection systems.
Marine Offshore Platforms: Ensures reliable power in saltwater environments, with marine-grade epoxy coating (ISO 12944 C5-M) and corrosion-resistant fasteners.
Mining Processing Plants: Operates in high-vibration, high-dust environments (underground and surface mines), compliant with IEC 60079-10 for hazardous areas.
Q: What is the ingress protection for the control panel?
A: IP66 for the main enclosure, with IP54 for the control module (upgradable to IP66 with optional sealing kit).
Q: Can it be installed vertically or horizontally?
A: Yes, multi-mount design supports vertical, horizontal, or angled installation (max 45° tilt), ideal for limited-space machinery compartments.
Q: Does the warranty cover harsh environment use?
A: Yes, 5-year warranty includes corrosion and vibration-related failures, backed by on-site maintenance support in remote locations.
Basic Structure
RDQ3NMB series intelligent automatic transfer switch composed with two 3P or 4P MCCB and its accessories ( Aux.contact, alarm contact), mechanical interlock operating mechanism, intelligent controller etc. Splitable controller provide flexible installation to the panel door
Outline and Installation Dimensions
Terminal Wiring Instruction
Split controller dimensions
Controller Instruction
Professional Manufacturing
The RDQ3NMB Series CB Class Automatic Transfer Switch is a rugged solution designed for extreme industrial environments, ensuring reliable power transfer and fault protection in dusty, wet, and high-temperature settings. Engineered with reinforced circuit breakers and durable enclosures, this switch withstands harsh conditions while delivering superior performance.
Extreme Environment Resistance:
IP66-rated enclosure (NEMA 4X) with gasketed doors, protecting against water jets (80 bar pressure) and dust ingress (ISO 20653), suitable for washdown areas.
Temperature range: -40°C to +70°C, with anti-condensation heaters and forced-air cooling for arctic and desert applications.
Heavy-Duty Performance:
Rated for 600A (3-phase) at 600V AC, with bolted pressure contacts (torque 12-15Nm) for low-resistance connections, reducing power loss by 15%.
UL 1008 Type 4X listed, with salt spray resistance (1000 hours, ASTM B117) and UV stabilization (QUV 500 hours) for coastal and outdoor use.
Advanced Fault Protection:
Dual-magnetic circuit breakers (thermal-magnetic trip units), distinguishing between overloads and short circuits for precise fault isolation.
Ground fault protection (GFP) optional (30mA-5A sensitivity), compliant with NEC 210.8 and IEC 62305-3 for lightning protection.
Modular Design for Easy Maintenance:
Removable circuit breaker modules (30-minute replacement), with labeled terminals and color-coded wiring for quick troubleshooting.
Optional vibration mounts (ISO 1940-1 G2.5), reducing stress on internal components in machinery rooms (vibration ≤2.5mm/s).
Suited for harsh industrial settings, the RDQ3NMB Series is used in:
Oil & Gas Refineries: Powers pumps, valves, and control systems in explosive atmospheres (ATEX Zone 2 certified models available).
Cement Plants: Withstands high dust levels (SiO2 exposure) in kiln drives, conveyor belts, and dust collection systems.
Marine Offshore Platforms: Ensures reliable power in saltwater environments, with marine-grade epoxy coating (ISO 12944 C5-M) and corrosion-resistant fasteners.
Mining Processing Plants: Operates in high-vibration, high-dust environments (underground and surface mines), compliant with IEC 60079-10 for hazardous areas.
Q: What is the ingress protection for the control panel?
A: IP66 for the main enclosure, with IP54 for the control module (upgradable to IP66 with optional sealing kit).
Q: Can it be installed vertically or horizontally?
A: Yes, multi-mount design supports vertical, horizontal, or angled installation (max 45° tilt), ideal for limited-space machinery compartments.
Q: Does the warranty cover harsh environment use?
A: Yes, 5-year warranty includes corrosion and vibration-related failures, backed by on-site maintenance support in remote locations.
Basic Structure
RDQ3NMB series intelligent automatic transfer switch composed with two 3P or 4P MCCB and its accessories ( Aux.contact, alarm contact), mechanical interlock operating mechanism, intelligent controller etc. Splitable controller provide flexible installation to the panel door
Outline and Installation Dimensions
Terminal Wiring Instruction
Split controller dimensions
Controller Instruction
Professional Manufacturing