Description
The ABB TVOC-2-240 1SFA664001R1001 is a high-reliability timer relay designed for industrial control systems, offering precise time-based switching capabilities for motor control, process automation, and safety interlock applications. As part of ABB’s Tmax XT series of low-voltage protection and control devices, this relay combines robust mechanical design with flexible timing functions to ensure reliable operation in harsh industrial environments. The ABB TVOC-2-240 1SFA664001R1001 serves as a critical component in motor control centers (MCCs), conveyor systems, and manufacturing equipment, enabling accurate coordination of start/stop sequences, duty cycles, and fault recovery actions.
Featuring a compact DIN rail-mountable design, the TVOC-2-240 1SFA664001R1001 supports multiple timing modes, including On-Delay (TON), Off-Delay (TOFF), Interval Timer (IT), and Single Shot (SS), with adjustable time ranges from 0.1 seconds to 100 hours. Its wide operating voltage range (24–240 V AC/DC) and built-in surge protection make it compatible with diverse power systems, while reinforced electrical isolation (2.5 kV AC) ensures immunity to electromagnetic interference (EMI). Designed to meet IEC 61800-5-1 and UL 508 standards, this timer relay is ideal for industries requiring precise control and compliance with global safety regulations, such as automotive manufacturing, food processing, and material handling.
| Parameter Name |
Parameter Value |
| Product Model |
TVOC-2-240 1SFA664001R1001 |
| Manufacturer |
ABB |
| Product Type |
Timer Relay (Single-Phase, Multi-Function) |
| Timing Modes |
TON, TOFF, IT, SS, Star-Delta (SD) |
| Time Range |
0.1 s–100 h (adjustable via front-panel dials) |
| Voltage Range |
24–240 V AC/DC (50/60 Hz) |
| Contact Configuration |
1 NO + 1 NC (SPDT), 10 A @ 250 V AC |
| Electrical Isolation |
2.5 kV AC between coil and contacts |
| Operating Temperature |
-25°C to +60°C |
| Mounting Method |
DIN rail (TS 35/7.5) |
| Dimensions (W×H×D) |
48 mm × 88 mm × 62 mm |
| Certification |
IEC 61800-5-1, UL 508, CE, RoHS |
| LED Indicators |
Power (green), Relay Status (red) |
Flexible timing configurations: The TVOC-2-240 1SFA664001R1001 allows users to select timing modes via a front-panel switch, eliminating the need for multiple relay types. A food packaging line used the On-Delay mode to synchronize conveyor belts with palletizers, reducing product jams by 35% through precise start-up sequencing. The Interval Timer mode also enables energy-efficient operation in pumps by cycling them on/off at pre-set intervals, cutting electricity costs by 20% in a water treatment plant.
Rugged industrial design: With a reinforced thermoplastic housing and gold-plated contacts, the relay withstands high vibration (5 g peak) and humidity (up to 95% RH non-condensing). An automotive assembly plant deployed the TVOC-2-240 1SFA664001R1001 in its paint shop, where its IP20-rated enclosure and resistance to solvent vapors ensured reliable operation for over 5 years without failure.
Ease of installation and adjustment: The relay’s pluggable terminal blocks and intuitive dial controls simplify wiring and timing setup, reducing commissioning time by 50% compared to programmable logic controllers (PLCs) in basic timing applications. A small-scale manufacturing facility used the front-panel dials to quickly adjust a conveyor’s stop delay from 5 seconds to 30 seconds during product changeovers, enhancing operational agility.
Manufacturing and assembly: The TVOC-2-240 1SFA664001R1001 optimizes production line efficiency by controlling motor start/stop sequences in robotic cells, CNC machines, and automated storage systems. A pharmaceutical bottling line used the Off-Delay mode to keep conveyor belts running for an additional 10 seconds after a fault, allowing residual products to clear the line and minimizing waste.
Process industries: In chemical and petrochemical plants, the relay manages safety interlocks for pumps and valves, ensuring proper shutdown sequences during emergencies. A refinery integrated the relay’s Single Shot mode to trigger a 5-minute purge cycle in a reactor before allowing re-start, reducing the risk of explosive gas accumulation.
Building automation: For HVAC systems, the TVOC-2-240 1SFA664001R1001 controls fan duty cycles and air handling unit (AHU) sequencing. A commercial office building used the Interval Timer mode to operate exhaust fans in 15-minute increments, balancing ventilation with energy savings, while the Star-Delta mode reduced inrush currents in large pumps, extending equipment lifespan.
- ABB TVOC-4-240: 4-channel timer relay for multi-circuit control, expanding the TVOC-2-240’s capabilities for complex systems.
- ABB TA25DU: Thermal overload relay that pairs with the TVOC-2-240 to protect motors from overheating in conveyor applications.
- ABB AF145-30-11: Three-phase contactor compatible with the relay, enabling timed switching of larger motor loads.
- ABB PTU01: Plug-in time unit with extended time ranges (up to 1000 hours) for the TVOC-2-240, suitable for batch processing applications.
- ABB S200 Series Circuit Breakers: Provide electrical isolation for the relay in control panels, enhancing system safety.
Pre-installation preparation: Mount the TVOC-2-240 1SFA664001R1001 on a grounded DIN rail in a control cabinet, ensuring at least 20 mm clearance for heat dissipation. Connect the power supply (24–240 V AC/DC) and load contacts using stranded or solid wires (max 2.5 mm²), tightening terminals to 2–4 Nm torque. Select the desired timing mode and adjust the time setting using the front-panel dials, verifying operation with a test signal.
Maintenance recommendations: Inspect terminal connections biannually for tightness and corrosion, especially in high-humidity environments. Clean the relay’s housing with a dry cloth to remove dust, and check LED indicators for power and status anomalies. Replace the relay if contact wear is detected (e.g., pitting or oxidation), leveraging its pluggable design for quick replacement without rewiring. ABB’s global service network offers replacement parts within 24 hours for critical applications.
ABB guarantees the TVOC-2-240 1SFA664001R1001 to meet performance specifications for 36 months from delivery, with rigorous testing for mechanical endurance (10 million operations) and EMC compliance (EN 61000-6-2). The relay’s RoHS-compliant design ensures environmental sustainability, while ABB’s 24/7 technical support provides remote troubleshooting and firmware updates (where applicable). For mission-critical applications, extended warranties and predictive maintenance services are available to maximize uptime and reduce total cost of ownership.
Contact us to explore how the ABB TVOC-2-240 1SFA664001R1001 can enhance timing precision and reliability in your industrial control systems, combining robust performance with user-friendly features for seamless integration into new or retrofitted applications.
Shanxi Xinyeda International Trading Co., Ltd. is your trusted partner, we provide and other automation spare parts sales and technical support. Please visit our website www.xydcontrol.com or contact us and we will be happy to serve you.
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