Electromagnetic Disturbances

Masterpact MTZ devices are protected against:

Overvoltages caused by devices that generate electromagnetic disturbances.
Overvoltages caused by atmospheric disturbances or by a distribution-system outage (for example, failure of a lighting system).
Devices emitting radio waves (radios, walkie-talkies, radar, etc.).
Electrostatic discharges produced by users.

Masterpact MTZ devices have successfully passed the electromagnetic compatibility tests (EMC) defined by IEC/EN 60947-2, Annex F.

This testing reduces the chance of:

Nuisance tripping
Tripping times outside of published curves

Immunity: ability of a device to operate without damage in the presence of an electromagnetic disturbance.

Susceptibility: inability of a device to operate without damage in the presence of an electromagnetic disturbance.

Conducted interference: disturbances generated by the device and transmitted by the conductors (of power supply, signalling, or control) in the form of electrical voltage.

Radiated interference: disturbances generated by the device and radiated in the environment in the form of electromagnetic waves.

Masterpact MTZ Electromagnetic Immunity


Electromagnetic Compatibility (EMC)	Standard	Level	Test Values Required by IEC 60947-2	Tested Extra EMC Performances
To Conducted Disturbances
Electrical fast transient/ burst (EFBT/B)	IEC 61000-4-4	—	4 kV ; 5 kHz on poles and all AC supplies 2 kV ; 5 kHz on auxiliaries DC supply and signal ports	4 kV ; 5 kHz and 100 kHz on poles and all AC supplies 2 kV ; 5 kHz and 100 kHz on auxiliaries DC supply and signal ports
Surges	IEC 61000-4-5	4	4 kV CM, 2 kV DM on poles and AC supply > 100 V 2 kV CM, 1 kV DM on AC supply < 100 V	6.6 kV CM, 4.4 kV DM on poles. 4 kV CM, 2 kV DM on MX-XF-MN voltage releases for supply > 100 V. 2 kV CM, 1 kV DM on MX-XF-MN voltage releases for supply < 100 V. 2 kV CM, 1 kV DM on 24 V DC supply. 2 kV CM, on all signals ports.
Conducted disturbances induced by radio-frequency fields	IEC 61000-4-6	4	10 V CM; 0,15…80 MHz (with CDN)	20 V CM; 0.15...80 MHz
Voltage dips, voltage sags, voltage interruption (AC supply)	IEC 61000-4-11	—	40 %(10/12 cycles); 70 %(25/30 cycles); 80 % (250/300 cycles) 0% (0,5 cycle); 0 % (1 cycle); 0 % (250/300 cycles) External power supply problem: 3 interruptions during 5 minutes; switching-off time 30 s each case Combined voltage and frequency variations
		—
		—
Conducted low frequency	IACS— E10 (§15)	—	AC: 50 Hz to 10 kHz ; 10 % of the rated voltage supply up to harmonic 15. Then reduction at 1% up to harmonic 100, min 3 V RMS. DC: 50 Hz to10 kHz; Test voltage 10% of the maximum voltage supply 2 W.
Harmonics and Interharmonics including mains signalling at a.c. power ports	IEC 61000-4-13 3	3		AC supply of devices < 16 A
Immunity to conducted, common mode disturbances of main frequencies	IEC 61000-4-16	—		Only on pole accesses: 30-3 V; CM; 15-150 Hz; 3 V; CM; 150-1,5 kHz 3-30 V; CM; 1,5-15 kHz; 30 V; CM; 15-150 kHz
Oscillatory wave	IEC 61000-4-18	—		2,5 kV CM, 2,5 kV DM; 1 MHz
Voltage dips, voltage sags, voltage interruption (DC supply)	IEC 61000-4-29	—	40 % (10/12 cycles); 70 % (25/30 cycles) 0% (0,5 cycle); 0 % (50 ms); 0 % (250/300 cycles) variations on DC : U ±20%; 10 sec External power supply problem: 3 interruptions during 5 minutes; switching-off time 30 s each case Voltage continuous ±10%; Voltage cyclic variation 5%; Voltage ripple10%	40 % (10/12 cycles); 70 % (25/30 cycles) 0% (0,5 cycle); 0 % (50 ms); 0 % (250/300 cycles) variations on DC : U ±20%; 10 sec External power supply problem: 3 interruptions during 5 minutes; switching-off time 30 s each case Voltage continuous ±10%; Voltage cyclic variation 5%; Voltage ripple10%


To Radiated Disturbances
Electrostatic discharge IEC 61000-4-2	IEC 61000-4-2	3	8 kV air ; 8 kV contact	9,6 kV air ; 9,6 kV contact
Electrostatic discharge IEC 61000-4-2	IACS - E10	—	8 kV air ; 8 kV contact	9,6 kV air ; 9,6 kV contact
Radiated radio-frequency electromagnetic fields	IEC 61000-4-3	3	10 V/m ; 80 MHZ…1 GHz; 1.4…2 GHz 10 V/m ; 80 MHz…2 GHz 10 V/m ; 80 MHz…1 GHz; 3 V/m ; 1.4-2 GHz; 1 V/m 2-2.7 GHz	20 V/m; 80 MHZ…3 GHz


Power frequency magnetic fields	IEC 61000-4-8	—	400 A/m permanently	500 A/m permanently, 1000 A/m during 3 s
Impulse magnetic field	IEC 61000-4-9 5	5	1000 A/m (8/20 μs wave)
Oscillatory magnetic field	IEC 61000-4-10	—	100 A/m (100 kHz and 1 MHz)

Masterpact MTZ Electromagnetic Emission


Electromagnetic Compatibility (EMC)	Standard	Level	Test values required by IEC 60947-2
To Conducted Disturbances
Limits for harmonic current emissions	IEC 61000-3-2 A	A	For Ie ≤ 16 A (0 to 2 kHz) and coils 240 Vac / 380 Vac
Conducted emission	CISPR 11/22	A	B (with external filters on MN/MX/XF Coils and with 24 Vdc external, please consult us)
	CISPR 11/22	B	B (with external filters on MN/MX/XF Coils and with 24 Vdc external, please consult us)
	CISPR 16	A
To Radiated Disturbances
Radiated emission	CISPR 11/22 CISPR 16	B
EMC and ERM tests compliant with: ETSI EN 300 328 and ERC Recommendation 70-03. FCC CFR47 Part 15, Subpart B and C, RSS-210 Issue 8 ETSI EN 300 440-1 /-2 ETSI EN 302 291-1 /-2.	Directive RTTE -	—	Bluetooth technology (Low Energy and Modulation DSSS) Proprietary connectivity NFC (Near Field Communication)