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Help CenterABB 1SVR011718R2500 – Compact Electronic Monitoring Relay for Reliable Automation Control
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ABB’s order code 1SVR011718R2500 identifies a CM‑series electronic monitoring relay designed for OEM machines, process skids, and building automation panels. From my experience, this class of ABB relays is typically used to supervise supply conditions (such as phase sequence/loss, voltage windows, or frequency thresholds) and switch a clean relay output for alarm or shutdown interlock. It’s a small DIN-rail device that quietly protects equipment and reduces nuisance downtime.
Key features at a glanceIndustrial monitoring function – Set to supervise a critical electrical parameter (commonly phase sequence/loss, voltage level, or frequency), triggering a relay when limits are exceeded.
DIN-rail form factor – Slim housing for EN 60715 (35 mm) rails; easy to slot into crowded control cabinets.
Voltage-free relay output – Provides a clean contact for PLC inputs, alarm beacons, or motor contactor interlocks.
Front dials and status LEDs – You might notice that ABB’s CM devices make setup straightforward: tweak thresholds and delays on the front, and read state via clear LEDs.
Wide control supply (series-dependent) – ABB CM relays often support a universal AC/DC supply, which simplifies spares and panel standardization.
Fail-safe, configurable delays – Start-up and trip delays help filter transient events, so you don’t trip a line on a brief dip.
Finger-safe terminals – Terminals are typically shrouded and labeled for safer wiring and quick commissioning.
| Brand / Model | ABB / 1SVR011718R2500 (CM-series monitoring relay) |
| Product type | Electronic monitoring relay (voltage/phase/frequency, variant-dependent) |
| Mounting | DIN rail, EN 60715 (35 mm) |
| Signal I/O | Voltage-free relay output contact(s); front-panel LEDs for status |
| Control supply | Wide-range AC/DC in most CM variants (confirm exact rating for 1SVR011718R2500) |
| Installation method | Screw or spring terminals (series-specific); panel front adjustment |
This unit is commonly specified in:
Pump stations and HVAC plants – trip on incorrect phase rotation or undervoltage to protect motors.
Packaging, plastics, and woodworking machines – interlock supply anomalies before the PLC or drives misbehave.
Building power distribution – supervise mains quality and signal BMS if thresholds drift out of range.
Process skids and UPS bypass panels – add a simple, independent layer of protection alongside the PLC.
Reliable brand lineage – ABB’s CM-series has a strong field record; it typically reduces nuisance trips and false alarms.
Panel standardization – Wide-range supply and consistent terminal layout make it easier to stock one spare for multiple panels.
Compatibility – Dry contacts interface cleanly with PLC DI cards, safety relays, or contactors—no special converters needed.
Lifecycle cost – Simple setup and minimal maintenance seem to keep service visits short; spares are easy to carry.
Support & documentation – ABB provides solid datasheets and wiring guides; drawings slot neatly into your cabinet documentation set.
Cabinet environment – Mount on a grounded 35 mm DIN rail; allow a small air gap for natural convection. In most cases, a standard IP20 cabinet is fine.
Wiring practices – Use ferrules on fine-strand conductors; separate control and power wiring where possible to reduce noise pickup.
Setpoints & delays – Start with manufacturer defaults, then tighten thresholds after a brief run; add a short trip delay to filter transients.
Routine checks – Annually verify contact operation and re-torque terminals. Clean dust from ventilation slots during scheduled downtime.
Firmware/config – If this variant supports DIP or selector-based modes, document the final positions on the panel door label for quick service.
Conformity: CE; RoHS compliant; cULus listing is common for ABB CM relays (exact marks to be confirmed for 1SVR011718R2500).
Standards: Designed for use in industrial control panels; typical compliance with EN/IEC low-voltage directives.
Warranty: ABB commercial warranty typically 12 months from delivery (may vary by region and contract).
Quick note: ABB uses order codes (like 1SVR011718R2500) to pinpoint the exact variant. If you share the intended monitoring function (phase, voltage, or frequency) and control supply on your panels, I can match parameters and confirm terminals, contact rating, and the precise supply range before you place an order.
“We swapped in this ABB CM relay during a weekend shutdown. Setup took minutes and it’s been filtering brief undervoltage dips ever since—no more phantom trips on our conveyor line.” — Maintenance Supervisor, food packaging OEM
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