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© 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/ Rev: 1-A-062716 Protection Relays Voltage Monitoring Relays www.littelfuse.com/tvm TVM SERIES

Description

The TVM Series Provides protection for motors and other sensitive loads. Continuously measures the voltage of each of the three phases using a microcomputer circuit design that senses under and overvoltage, voltage unbalance, phase loss, and phase reversal. Protection is provided even when regenerated voltages are present. Includes a trip delay to prevent nuisance tripping and a restart delay to prevent short cycling after a momentary power outage. Operation Upon application of line voltage, the restart delay begins. The output relay is de-energized during restart delay. Under normal conditions, the output energizes after restart delay. Undervoltage, overvoltage, and voltage unbalance must be sensed for continuous trip delay period before the output is de-energized. The output will not de-energize if a fault is corrected during the trip delay. The restart delay begins as soon as the output relay de-energizes. If the restart delay is completed when the fault is corrected, the output relay will energize immediately. The output relay will not energize if a fault or phase reversal is sensed as 3-phase input voltage is applied. Reset: Reset is automatic upon correction of a fault. LED Operation The LED flashes green during the restart delay, then glows green when the output energizes. It flashes red during the trip delay then glows red when the output de-energizes. It flashes red/green if phase reversal is sensed. Features & Benefits FEATURES BENEFITS Proprietary microcontroller based circuitry Constant monitoring to protect against phase loss, phase reversal; over, under, and unbalanced voltage; short cycling Compact design measures 2 in. (50.8mm) square Perfect for OEM applications where cost, size and ease of installation are important LED indication Provides diagnostics of relay, fault and time delay status Encapsulated Protects against shock, vibration and humidity

Ordering Information

TVM208A100.5S3S 208VAC 10% 0.5s 3s TVM230A101S1S 230VAC 10% 1s 1s TVM460A41S5M 460VAC 4% 1s 5m TVM460A75S2M 460VAC 7% 5s 2m TVM480A45S5S 480VAC 4% 5s 5s TVM480A100.5S3S 480VAC 10% 0.5s 3s If you don’t find the part you need, call us for a custom product 800-843-8848 Wiring Diagram L1 = Phase A L2 = Phase B L3 = Phase C NO = Normally Open NC = Normally Closed C = Common, Transfer Contact Relay contacts are isolated. F = 2A Fast acting fuses are recommended, but not required

© 2016 Littelfuse Protection Relays & Controls www.littelfuse.com/ Rev: 1-A-062716 Protection Relays Voltage Monitoring Relays www.littelfuse.com/tvm TVM SERIES Accessories LPSM003ZXID (Indicating), LPSM003Z (Non-indicating) Fuse Holders Littelfuse POWR-SAFE Dead Front holders provide optimum protection to personnel for Class CC and Midget-Style fuses. 600 VAC/DC 0KLK002.T Midget Fuse (2 Amp) 10 x 38 fast acting, high-interrupting capacity, current-limiting type fuse. 600 Vac/500 Vdc P1015-13 (AWG 10/12), P1015-64 (AWG 14/16), P1015-14 (AWG 18/22) Female Quick Connect These 0.25 in. (6.35 mm) female terminals are constructed with an insulator barrel to provide strain relief. P1023-20 DIN Rail Adapter Allows module to be mounted on a 35 mm DIN type rail with two #10 screws. VRM6048 Voltage Reduction Module Allows the voltage monitor to monitor a 3-phase 550 to 600VAC Line. Specifications Line Voltage Type 3-phase delta or wye with no connection to neutral Input Voltage 208 to 480VAC AC Line Frequency 50 - 100 Hz Phase Sequence ABC Power Consumption Approx. 2W for 240V units Approx. 3W for 480V units Overvoltage, Undervoltage, & Voltage Unbalance Overvoltage & Undervoltage Voltage detection with delay trip & automatic reset Undervoltage Trip Point 88 - 92% of the selected line voltage Reset Voltage ≅ +3% of trip voltage Overvoltage Trip Point 109 - 113% of the selected line voltage Reset Voltage ≅ -3% of trip voltage Trip Variation vs Temperature ≤ ±2% Voltage Unbalance Factory fixed from 4 - 10% Reset On Balance ≅ -0.7% unbalance Trip Delay Range Fixed from 0.2 - 100s ±15% or ±0.1s, whichever is greater Restart Delay Range Fixed from 0.5s - 999m ±15% or ±0.2s, whichever is greater Phase Reversal & Phase Loss Response ≤ 200ms; automatic reset Phase Loss ≥ 25% unbalance Output Type Isolated SPDT relay contacts Rating 208 to 240VAC (55°C) 10A resistive @ 125VAC, 5A @ 250VAC, 1/4 hp @ 125VAC 380 to 480VAC 10A resistive @ 240VAC, 1/4 hp @ 125VAC, 1/3 hp @ 250VAC, max. voltage 277VAC Life Mechanical - 1 x 10 6; Electrical - 1 x 10 5 Protection Phase Reversal/Failure ASME A17.1 Rule 210.6 Motors and Generators NEMA MG1 14:30, 14:35 Surge IEEE C62.41-1991 Level B Dielectric Breakdown 208 to 240VAC ≥ 1500V RMS input to output terminals 380 to 480VAC ≥ 2500V RMS input to output terminals Mechanical Mounting Surface mount with one #8 (M5 x 0.8) screw Dimensions H 50.8 mm (2.0”); W 50.8 mm (2.0”); D 31.75 mm (1.25”) Termination 0.25 in. (6.35 mm) male quick connect terminals Environmental Operating/Storage Temperature -40° to 55°C / -40° to 85°C Humidity 95% relative, non-condensing Weight ≅ 2.8 oz (79 g)