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ABB CT-ERE 1SVR550107R5100 Time Relay  

1. Key Parameters

• Product Model: CT-ERE
• Order Code: 1SVR550107R5100
• Product Series: ABB CT Series Electronic Time Relays (Multi-function, Adjustable Delay)
• Core Function: Provides programmable time delays for control circuit switching; supports multiple delay modes (on-delay, off-delay, interval); ensures sequential operation of industrial equipment; integrates with PLCs for automated timing control
• Electrical Specifications:

  Parameter	Details	Performance Metrics
  Coil Voltage (Uc)	AC 230V ±10% (50Hz/60Hz auto-adaptive)	Compatible with standard industrial control circuits
  Coil Power Consumption	3VA (max)	Low energy usage in control panels
  Delay Range	0.05s~100h (adjustable via potentiometer and range switches)	8 selectable ranges (e.g., 0.05s~1s, 1s~100s, 1min~100h)
  Timing Accuracy	±0.5% of set time + 50ms (at 25℃); Temperature drift: ≤±0.1%/℃	Ensures precise sequential control
  Contact Configuration	1CO (1 Changeover): 1NO (Normally Open) + 1NC (Normally Closed)	Versatile for on/off delay applications
  Contact Rating	10A AC 250V (resistive, cosφ=1); 2A AC 250V (inductive, cosφ=0.4)	Handles medium-power control circuits
  Delay Modes	- On-delay (TON): Output activates after set delay when input energizes - Off-delay (TOF): Output deactivates after set delay when input de-energizes - Interval (TP): Output remains active for set delay after input trigger	Adaptable to diverse timing requirements

• Mechanical Specifications:
  • Housing Material: Flame-retardant thermoplastic (UL94 V-0); high-impact resistance
  • Dimensions (W×H×D): 22.5mm × 78mm × 55mm (DIN rail-mountable, compact design)
  • Mounting: DIN rail-mounted (35mm standard rail, TS 35/7.5); snap-on installation
  • Weight: Approximately 75g
  • User Interface: 3-position range switch; potentiometer for fine adjustment; LED indicator (red, output active)
  • Mechanical Life: 10,000,000 operations (no-load) | Durable for high-cycle applications |
  • Electrical Life: 100,000 operations (at rated load) | Reliable in frequent-switching scenarios |
• Environmental Ratings:
  • Operating Temperature Range: -25℃~+70℃ (-13℉~158℉)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
  • Humidity Tolerance: ≤95% RH (non-condensing, 40℃; suitable for damp industrial areas)
  • Vibration Resistance: 10~500Hz, 1.5g acceleration (IEC 60068-2-6; no timing drift)
  • Shock Resistance: 20g acceleration (11ms duration, IEC 60068-2-27; maintains contact alignment)
• Compliance Standards: IEC 60947-5-1 (low-voltage switchgear), EN 61000-6-2 (EMC immunity), UL 508 (industrial control equipment), CE, RoHS

2. Key Features

• Wide Delay Range & High Accuracy: 0.05s~100h adjustable range with ±0.5% accuracy ensures precise timing control for both fast (e.g., 50ms motor interlocks) and long-duration (e.g., 100h maintenance timers) applications—eliminates the need for multiple relay models.
• Multi-Mode Operation: Supports on-delay, off-delay, and interval modes via simple configuration—adapts to diverse control logic (e.g., on-delay for motor soft-start, off-delay for fan post-cooling, interval for batch processing).
• Compact DIN Rail Design: 22.5mm width maximizes space efficiency in crowded control panels—ideal for modular automation systems where multiple timing relays are required (e.g., production line sequencing).
• Intuitive Adjustment: 3-position range switch (coarse setting) + potentiometer (fine tuning) allows quick delay programming without tools—simplifies on-site commissioning and parameter adjustments.
• Visual Status Indication: Red LED provides instant confirmation of output activation—speeds up troubleshooting (e.g., distinguishing between timing faults and relay malfunctions).
• Wide Temperature Tolerance: -25℃~+70℃ operating range ensures reliability in extreme environments (e.g., cold storage facilities, high-temperature foundries)—avoids performance degradation in harsh conditions.

3. Application Fields

• Industrial Motor Control: Primary application—sequential motor operation:
  • Conveyor Systems: Implements on-delay timing (1~10s) between conveyor sections to prevent product jams; ensures upstream conveyors start before downstream ones, maintaining smooth material flow in packaging lines.
  • Pump Stations: Uses off-delay mode (1~30min) to keep cooling pumps running after main pumps shut down, preventing overheating of motor windings in water treatment plants.
• Automation Process Sequencing: Controls step timing in manufacturing:
  • Assembly Lines: Provides interval timing (10s~5min) for glue drying or part curing; triggers next assembly step only after preset delay, ensuring product quality in automotive component manufacturing.
  • Food Processing: Uses on-delay (0.5~10s) to synchronize filling and capping machines—delays capper activation until filling is complete, reducing spillage in beverage bottling lines.
• Power Distribution & Protection: Enhances safety in electrical systems:
  • Transformer Cooling: Implements off-delay (5~30min) for cooling fans—keeps fans running after transformer shutdown to dissipate residual heat, extending equipment life in power substations.
  • Circuit Breaker Interlocks: Uses on-delay (0.1~1s) to prevent simultaneous closure of redundant breakers, avoiding electrical backfeeding in industrial power distribution.
• Building & Infrastructure Control: Optimizes auxiliary systems:
  • HVAC Systems: Provides interval timing (30min~2h) for air filter monitoring—triggers alarm after preset runtime, prompting maintenance in office buildings.
  • Lighting Control: Uses off-delay (1~10min) to keep exit lights on after main power failure, ensuring safe evacuation in commercial complexes.

The structure and details of the product：

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