Description

Product Overview

The ABB 1SVR730885R4300 is a CM-MPS.23S three-phase monitoring relay designed to ensure reliable and safe operation of industrial power systems. As part of ABB’s CM series, this relay provides comprehensive monitoring of three-phase mains for critical parameters such as phase unbalance, phase loss, over/undervoltage, and interrupted neutral. The 1SVR730885R4300 features an adjustable tripping delay (0.1–30 seconds) and automatic phase sequence correction, making it ideal for applications where precise voltage and phase control are essential.

Rated for 180–280 V AC across all three phases, the 1SVR730885R4300 offers 2 CO (SPDT) output contacts with a 4 A switching capacity, enabling direct integration with motor control centers, pumps, and HVAC systems. Its IP50-rated housing and screw-terminal connections ensure rugged durability in harsh industrial environments, while compliance with IEC 60255-1 and UL 508 standards guarantees global applicability. The relay’s modular design supports easy configuration for single- or three-phase monitoring, with a sealable transparent cover to prevent unauthorized adjustments.

In summary, the ABB 1SVR730885R4300 serves as a critical component in industrial automation, delivering real-time diagnostics and fault protection to minimize downtime and equipment damage. Its advanced features, including dual-frequency support (50/60/400 Hz) and wide temperature operation (-25°C to +60°C), make it a versatile solution for manufacturing, energy, and infrastructure sectors.

Technical Specifications

Parameter	Value
Product Model	ABB 1SVR730885R4300
Manufacturer	ABB
Product Type	Three-Phase Monitoring Relay
Rated Voltage	180–280 V AC (3-phase, 50/60/400 Hz)
Output Contacts	2 CO (SPDT), 250 V AC / 4 A (AC-12)
Tripping Delay	0.1–30 seconds (adjustable)
Phase Monitoring	Unbalance, loss, sequence, and interrupted neutral
Voltage Monitoring	Overvoltage/undervoltage (adjustable thresholds)
Response Time	<200 ms (start-up delay)
Mounting	DIN rail (TH35-7.5/15 mm) or panel-mounted
Terminal Type	Screw-type with double-chamber cage connections
Enclosure Rating	IP50 (housing), IP20 (terminals)
Operating Temperature	-25°C to +60°C
Weight	0.149 kg
Certifications	CE, UL 508, CSA, IEC 60255-1, RoHS compliant

Key Features and Advantages

Comprehensive Monitoring: The 1SVR730885R4300 continuously monitors three-phase systems for phase unbalance, phase loss, and voltage deviations, ensuring early detection of faults that could damage motors or other critical equipment. Its adjustable thresholds allow customization for specific application requirements.

Automatic Phase Correction: The relay’s automatic phase sequence correction ensures proper motor rotation even in portable or non-fixed equipment, eliminating downtime caused by incorrect wiring. This feature is particularly valuable in construction machinery and mobile industrial setups.

Flexible Configuration: The 2 CO output contacts can be configured as either a single common signal or separate signals for overvoltage and undervoltage events, providing versatility in system integration. The sealable cover protects against accidental adjustments, maintaining stability in high-reliability environments.

Rugged Design: With an IP50-rated housing and -25°C to +60°C operating range, the 1SVR730885R4300 withstands extreme temperatures, dust, and vibration, making it suitable for harsh industrial settings. Its 30 million mechanical operations ensure long-term durability.

Global Compliance: The relay’s UL 508 and CE certifications enable seamless integration into international projects, while RoHS compliance supports environmentally sustainable practices.

Application Areas

The ABB 1SVR730885R4300 is widely used across industries to protect three-phase equipment and ensure stable power supply:

Manufacturing: Safeguarding motors, conveyor systems, and pumps from phase unbalance and voltage fluctuations. The relay’s automatic phase correction prevents equipment damage during startup.
Energy & Utilities: Monitoring power distribution in solar farms and wind turbines to detect phase loss or voltage irregularities, ensuring optimal energy production.
Commercial Buildings: Protecting HVAC systems, elevators, and lighting systems in offices and shopping centers. The relay’s adjustable tripping delay minimizes false alarms during transient voltage events.
Oil & Gas: Providing reliable protection for offshore platforms and refineries, where IP50-rated enclosures and wide temperature tolerance are critical for operation in corrosive and extreme environments.
Construction: Ensuring proper phase alignment in portable machinery such as cranes and generators, reducing downtime and maintenance costs.

Installation and Maintenance

Installation Preparation:

Verify the 1SVR730885R4300’s compatibility with the system’s voltage range (180–280 V AC). Mount the relay on a 35 mm DIN rail or panel using the provided brackets.
Connect the three-phase input voltage (L1-L2-L3-N) to the screw terminals, ensuring proper torque (0.6–0.8 N·m). Configure the DIP switches for desired functions (e.g., phase sequence correction, tripping delay).

Maintenance Recommendations:

Visual Inspection: Regularly check for loose connections, thermal discoloration, or physical damage. Clean dust from the enclosure to maintain optimal heat dissipation.
Threshold Calibration: Use ABB’s Relion® 670 test equipment to verify voltage and phase thresholds annually. Adjust settings as needed to align with system requirements.
Contact Wear Check: Inspect the output contacts for pitting or erosion. Replace worn contacts to ensure reliable switching.
Firmware Updates: Update the relay’s firmware via ABB’s Automation Builder software to access new features and security patches.
Environmental Checks: Monitor ambient temperature and humidity to ensure they remain within the specified range. Avoid exposing the relay to corrosive gases or liquids.

Product Warranty and Support

The ABB 1SVR730885R4300 is backed by a 1-year warranty covering defects in materials and workmanship. ABB’s global support network offers 24/7 technical assistance, including remote diagnostics and on-site service by certified technicians. Customers can access detailed product documentation, firmware updates, and safety guidelines through ABB’s online portal.

For mission-critical applications, optional extended warranties are available, providing priority service and replacement modules to minimize downtime. ABB also offers training on CM series operation and maintenance, ensuring customers maximize the 1SVR730885R4300’s capabilities.

Brand Model: ABB 1SVR730885R4300
Product Name: CM-MPS.23S Three-Phase Monitoring Relay
Warranty: 1 year
Size: 22.5 mm (W) × 85.6 mm (H) × 103.7 mm (D)
Weight: 0.149 kg
Origin: Sweden
Inventory: Spot
Delivery Time: Goods in stock will be dispatched within 3 days after payment
Order Time: Goods will be dispatched within one month after payment

Contact info

WhatsApp: +86 18030182217
Email: sandydcsplc@gmail.com
Phone: +86 18030182217
Wechat: +86 18030182217
Website: www.xiongbaparts.com

ABB 1SVR730885R4300 Three-Phase Monitoring Relay(XIONGBA)