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1SVR730884R3300 ABB CM-MPS.41S Three-Phase Monitoring Relay
ABB CM-MPS.41S three-phase monitoring relay 1SVR730884R3300 supervises 300–500 V AC systems for phase failure, phase sequence, overvoltage, undervoltage and phase unbalance with adjustable timing and two changeover output contacts.
£156.87
Why Choose the ABB CM-MPS.41S Three-Phase Monitoring Relay?
The ABB CM-MPS.41S is a multifunctional three-phase monitoring relay designed to supervise critical electrical parameters in industrial three-phase systems. With ABB order code 1SVR730884R3300, it operates directly from the monitored network across a 300–500 V AC line-to-line range at 50/60 Hz.
The CM-MPS.41S monitors phase failure, phase sequence, overvoltage, undervoltage and phase unbalance. Adjustable threshold values allow the voltage and unbalance monitoring response to be matched to the installation, while selectable phase-sequence monitoring provides additional flexibility for machinery and distribution applications.
A 200 ms start-up delay and selectable ON- or OFF-delay with an adjustable tripping time of 0 or 0.1–30 s help distinguish persistent faults from temporary supply variations. Two changeover (SPDT) output contacts rated at 250 V / 4 A, screw terminals and a compact 22.5 mm DIN-rail housing provide straightforward integration into industrial control systems.
Key Advantages
- Multifunctional supervision of critical three-phase supply conditions.
- Monitors phase failure, phase sequence, overvoltage, undervoltage and phase unbalance.
- Direct monitoring across a 300–500 V AC line-to-line range.
- Adjustable voltage and phase-unbalance thresholds for application-specific protection.
- Selectable ON- or OFF-delay with adjustable tripping time.
- Two changeover output contacts provide flexible signalling and control.
- Compact 22.5 mm-wide housing conserves DIN-rail space.
- Screw connection technology provides secure industrial field wiring.
Key Features
- ABB CM-MPS multifunctional three-phase monitoring relay series.
- 300–500 V AC line-to-line rated control supply and measuring voltage.
- 50/60 Hz rated supply frequency.
- Phase failure detection.
- Selectable phase sequence monitoring.
- Adjustable overvoltage and undervoltage monitoring.
- Adjustable phase unbalance monitoring.
- 200 ms start-up delay.
- Selectable ON- or OFF-delay.
- 0 or 0.1–30 s adjustable tripping delay.
- 2 c/o (SPDT) relay outputs.
- Screw connection technology with double-chamber cage terminals.
Comprehensive Three-Phase Supply Monitoring
Three-phase machinery and electrical systems can be affected by abnormal voltage, loss of a phase, incorrect phase rotation or excessive phase unbalance. The ABB CM-MPS.41S combines these monitoring functions in one compact device, allowing the control system to respond when the monitored supply moves outside the configured operating limits.
Adjustable thresholds and a selectable tripping delay allow the relay response to be tailored to the installation. The 200 ms start-up delay supports stable operation during initial energisation, while the selectable ON- or OFF-delay can help prevent temporary supply variations from causing unnecessary switching.
Typical Applications
- Three-phase motor and machinery protection circuits.
- Industrial control and automation panels.
- Phase failure and phase sequence supervision.
- Overvoltage and undervoltage monitoring.
- Phase unbalance detection.
- Pumps, fans and compressor control systems.
- Conveyors and material handling equipment.
- Industrial power distribution and OEM machinery.
Technical Specifications
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| Time Delay | Adjustable | |
|---|---|---|
| Monitored Supply | Three-phase | |
| Monitoring Function | Three-phase supply | |
| Series | CM-MPS | |
| ABB order code | 1SVR730884R3300 | |
| Product type | Multifunctional three-phase monitoring relay | |
| Rated control supply voltage | 300–500 V AC line-to-line | |
| Three-phase measuring range | 3 × 300–500 V AC | |
| Rated frequency | 50/60 Hz | |
| Monitoring functions | Phase failure, phase sequence, overvoltage, undervoltage and phase unbalance | |
| Start-up delay | 200 ms | |
| Tripping delay | 0 or 0.1–30 s | |
| Delay function | Selectable ON- or OFF-delay | |
| Output | 2 c/o (SPDT) contacts | |
| Output contact rating | 250 V / 4 A | |
| Terminal type | Screw terminals | |
| Protection rating | IP50 housing / IP20 terminals | |
| Mounting | DIN rail | |
| Operating temperature | -25 to +60 °C | |
| Storage temperature | -40 to +85 °C | |
| Width | 22.5 mm | |
| Height | 85.6 mm | |
| Depth | 103.7 mm | |
| Net weight | 0.140 kg | |
| EAN | 4016779851862 |
Frequently Asked Questions
What does the ABB CM-MPS.41S 1SVR730884R3300 monitor?
The CM-MPS.41S monitors phase failure, phase sequence, overvoltage, undervoltage and phase unbalance in three-phase electrical systems.
What voltage range does the CM-MPS.41S monitor?
The relay is designed for a three-phase line-to-line measuring and control supply range of 300–500 V AC at 50/60 Hz.
Does the CM-MPS.41S have an adjustable tripping delay?
Yes. The relay provides a selectable ON- or OFF-delay with a tripping time of 0 or 0.1–30 s, together with a 200 ms start-up delay.
Can the CM-MPS.41S detect incorrect phase sequence?
Yes. Phase sequence monitoring is selectable, allowing the relay to detect an incorrect phase rotation where this function is required.
What outputs does the CM-MPS.41S provide?
The CM-MPS.41S provides two changeover (SPDT) output contacts rated at 250 V / 4 A for connection to control, alarm and interlocking circuits.
Trusted ABB Three-Phase Monitoring Technology
ABB CM-MPS monitoring relays provide comprehensive three-phase supply supervision for industrial automation, combining phase failure, phase sequence, voltage and phase-unbalance monitoring with adjustable thresholds, configurable timing and compact DIN-rail installation.
