relay, description about phase failure-sequence Phase-loss RelayTVR-2000C on China Suppliers Mobile

Key Specifications/Special Features

Function	Rated input voltage *	Relay output	Model
Phase sequence and phase loss monitoring	3-phase, 3-wire 220 to 440 VAC	Relay: 1 NC,1 NO	TVR-2000B
Phase sequence and phase loss monitoring	3-phase, 3-wire 380 to 660 VAC	Relay: 1 NC,1 NO	TVR-2000C

* The power supply voltage is the same as the rated input voltage.

Ratings

Rated input voltage		3-phase, 200 to 440 VAC (3-wire)
Input load		Approx. 2.6 VA
Operating time	Phase sequence	1 s±0.05 s
	Phase loss	0.1 s max. (when the voltage changes rapidly from 100% to 0% of rated voltage)
Indicators LED		Normal: Green light; phase loss: Red light; Inverted: Yellow light
Output form		Relay Output: SPDT contact
Output relay ratings		Rated load Resistive load 5 A at 250 VAC 5 A at 30 VDC Maximum switching capacity: 1,250 VA, 150 W Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC or 30 VDC:50,000 operations 3 A at 250 VAC/30 VDC:100,000 operations
Ambient operating temperature		-20 to 60°C (with no condensation or icing)
Storage temperature		-25 to 65°C (with no condensation or icing)
Ambient operating humidity		25% to 85% RH (with no condensation)
Storage humidity		25% to 85% RH (with no condensation)
Altitude		2,000 m max.
Applicable wires		Stranded wires, solid wires, or ferrules
Applicable wire size		0.25 to 1.5 mm2 (AWG24 to AWG16)
Wire insertion force		8 N max. for AWG20 wire
Screwdriver insertion force		15 N max.
Wire stripping length		8 mm
Ferrule length		8 mm
Current capacity		10 A (per pole)
Number of insertions		50 times
Weight		Approx.55g
Mounting		Mounts to DIN Track, or screw mounting
Dimensions		30 × 60 ×70 mm (W×D×H)

Specifications

Input frequency range		50 to 60 Hz
Phase loss detection level		80%±10% of rated input Calculation Formula = 1 – ((Highest phase-to-phase voltage – Lowest phase-to-phase voltage)/ Average three-phase phase-to-phase voltage)
Applicable standards	Conforming standards	EN 60947-5-1 Installation environment (pollution level 2, Overvoltage category III)
	EMC	EN 60947-5-1
Insulation resistance		20 MΩ min. Between external terminals and case Between input terminals and output terminals
Dielectric strength		2,000 VAC for one minute Between external terminals and case Between input terminals and output terminals
Impulse withstand voltage		6 kV (between live terminals and exposed, non-charged metal parts)
Vibration resistance		Frequency: 10 to 55 Hz, 0.35-mm single amplitude 10 sweeps of 5 min each in X,Y, and Z directions
Shock resistance		100 m/s2, 3 times each in 6 directions along 3 axes
Degree of protection		Terminals: IP20

♦ Features

– Three-phase monitoring of phase sequence, phase loss, and phase unbalance

– Powered by the measuring circuit

– 1 C/O contact

– 3 LEDs for status indication

♦ Protective Functions

– Phase sequence

– Phase loss

– Phase unbalance

♦ Typical Applications

• Pumps • Fans

• Blowers • Motors

• Compressors

♦ Approvals

• CE • rohs

phase failure-sequence Phase-loss RelayTVR-2000C