ERS-07 220V AC Alternating Load Controller – Dual Load Time Relay
ERS-07 220V AC Alternating Load Controller – Dual Load Time Relay
ERS-07 Alternating Load Controller – 220V AC Dual Load Time Relay with LED Indicators
The ERS-07 Alternating Load Controller is a precision-engineered DIN rail time relay designed to manage two separate loads in a perfectly balanced, alternating sequence. Ideal for industrial automation, DSP delay switch systems, pump alternation, motor cycling, and any application requiring equal-duration load switching, this relay delivers reliable, repeatable performance in a compact ABS housing.
Key Features
- Dual Load Alternation: Automatically switches between two independent loads with equal ON and OFF durations, ensuring balanced duty cycles and even wear across connected equipment.
- Adjustable Timing (1 sec – 100 min): Flexible timing adjustment from 1 second up to 100 minutes for both ON and OFF intervals, accommodating a wide range of automation and sequencing requirements.
- Visual State Indication: Three built-in LED indicators (R and L flashing LEDs) provide instant visual feedback on relay state and switching operation — no guesswork during setup or monitoring.
- DIN Rail Mounting: Standard DIN rail compatible for quick, tool-minimal installation in control panels and enclosures.
- Built-in Safety Features: Integrated time relay and circuit breaker function for secure, dependable operation within specified environmental conditions.
- Wide Temperature Range: Operates reliably from -20°C to +55°C, suitable for demanding industrial environments.
- Easy Maintenance: Simple, swab-based cleaning keeps the unit performing long-term without component risk.
Technical Specifications
| Model | ERS-07 |
| Working Voltage | 220V AC / 110V AC (50/60 Hz) |
| Operating Power | <5 VA |
| ON / OFF Time Range | 1 second to 100 minutes (each) |
| Contact Rating | 5A / 250V AC (resistive load) |
| Display | 3 LED indicators |
| Connection Type | Terminal connection |
| Mounting Type | DIN rail |
| Ingress Protection | IP20 |
| Operating Temperature | -20°C to +55°C |
| Operating Altitude | <2000 m |
| Cable Cross-section | 2.5 mm² |
| Material | ABS plastic |
| Size | 90 × 17 mm |
| Weight | <125 g |
| Color | White |
| Country of Origin | Made in Mainland China |
Package Contents
- 1 × ERS-07 Time Relay / Alternating Load Controller
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Frequently Asked Questions
Q: What is the ERS-07 alternating load controller used for?
A: The ERS-07 is a dual-load alternating time relay used to switch between two separate electrical loads in equal, timed intervals. Common applications include pump alternation systems, motor sequencing, DSP delay switch setups, irrigation control, and any automation scenario requiring balanced load cycling.
Q: How do I adjust the timing on the ERS-07 time relay?
A: The ON and OFF timing intervals are each independently adjustable from 1 second to 100 minutes, giving you a wide range of cycle durations. Settings are configured via the onboard adjustment controls, and the three built-in LED indicators confirm the current relay state at a glance.
Q: Is the ERS-07 compatible with standard control panel DIN rail mounting?
A: Yes. The ERS-07 features standard DIN rail mounting, making it straightforward to integrate into existing control panels and enclosures. It uses terminal block connections and supports cable cross-sections up to 2.5 mm² for easy wiring.