0614IB1701

Masterpact MTZ2/MTZ3 Range

Masterpact MTZ2/MTZ3 Range Description

The Masterpact MTZ2/MTZ3 range of circuit breakers and switches offers current ratings from 800 A to 6,000 A, for AC power systems up to 600 Vac.

The Masterpact MTZ2/MTZ3 range is available in the following frame sizes:

  • Masterpact MTZ2 for current ratings from 800 A to 4,000 A

  • Masterpact MTZ3 for current ratings from 4,000 A to 6,000 A

Each frame size is available in the following power systems:

  • Three-pole (3P)

  • Four-pole (4P)

Devices are available in the following installation types:

  • Fixed-mounted devices

  • Drawout devices

For complete information on available circuit breaker and switch models, frame sizes, interrupting ratings, sensor sizes and trip units, see Masterpact MTZ Circuit Breakers and Switches – Catalog (0614CT1701).

Masterpact MTZ2/MTZ3 Range Convention

In this guide, the term Masterpact MTZ device covers circuit breakers and switches.

Masterpact MTZ2/MTZ3 Circuit Breakers

The following performance levels are available:

  • N, N1: standard short-circuit level with total discrimination

  • H1: high short-circuit level with total discrimination

  • H, H2, H3: very high short-circuit level with very high discrimination

  • L, L1, LF: extremely high short-circuit level with strong current limitation and significant discrimination

Circuit breakers are fitted with a Micrologic™ X control unit.

Frame Sizes and Ratings

ANSI C37 Certified Masterpact MTZ2 / MTZ3 Circuit Breakers

UL489 Listed Masterpact MTZ2 / MTZ3 Circuit Breakers

Frame Size

Type

Interrupting Ratings

Frame Size

Type

Interrupting Ratings

254 Vac

508 Vac

635 Vac

240 Vac

480 Vac

600 Vac

800 A

N1

42 kA

42 kA

42 kA

800 A

N

65 kA

65 kA

50 kA

H1, HA

65 kA

65 kA

65 kA

H

100 kA

100 kA

85 kA

H2

85 kA

85 kA

85 kA

L

200 kA

150 kA

100 kA

H3

100 kA

100 kA

85 kA

LF

200 kA

150 kA

100 kA

L1

200 kA

200 kA

130 kA

1200 A

N

65 kA

65 kA

50 kA

L1F

200 kA

200 kA

130 kA

H

100 kA

100 kA

85 kA

1600 A

N1

42 kA

42 kA

42 kA

L

200 kA

150 kA

100 kA

H1, HA

65 kA

65 kA

65 kA

LF

200 kA

150 kA

100 kA

H2

85 kA

85 kA

85 kA

1600 A

N

65 kA

65 kA

50 kA

H3

100 kA

100 kA

85 kA

H

100 kA

100 kA

85 kA

L1

200 kA

200 kA

130 kA

L

200 kA

150 kA

100 kA

L1F

200 kA

200 kA

130 kA

LF

200 kA

150 kA

100 kA

2000 A

H1, HA

65 kA

65 kA

65 kA

2000 A

N

65 kA

65 kA

50 kA

H2

85 kA

85 kA

85 kA

H

100 kA

100 kA

85 kA

H3,

100 kA

100 kA

85 kA

L

200 kA

150 kA

100 kA

L1

200 kA

200 kA

130 kA

LF

200 kA

150 kA

100 kA

L1F

200 kA

200 kA

130 kA

2500 A

H

100 kA

100 kA

85 kA

3200 A

H1, HA

65 kA

65 kA

65 kA

L

200 kA

150 kA

100 kA

H2

85 kA

85 kA

85 kA

3000A

H

100 kA

100 kA

85 kA

H3

100 kA

100 kA

85 kA

L

200 kA

150 kA

100 kA

L1 (MTZ3 Only)

200 kA

200 kA

130 kA

4000 A

H

100 kA

100 kA

85 kA

4000 A
MTZ2

H1, HA

65 kA

65 kA

65 kA

L

200 kA

150 kA

100 kA

H2

85 kA

85 kA

85 kA

5000 A

H

100 kA

100 kA

85 kA

H3

100 kA

100 kA

85 kA

L

200 kA

150 kA

100 kA

4000 A

H2, HA

85 kA

85 kA

85 kA

6000 A

H

100 kA

100 kA

85 kA

H3

100 kA

100 kA

85 kA

L

200 kA

150 kA

100 kA

L1

200 kA

200 kA

130 kA

         

5000 A

H2, HA

85 kA

85 kA

85 kA

         

H3

100 kA

100 kA

85 kA

         

L1

200 kA

200 kA

130 kA

         

6000 A

H2, HA

85 kA

85 kA

85 kA

         

H3

100 kA

100 kA

85 kA

         

L1

200 kA

200 kA

130 kA

         

For full information about available circuit breaker models, frame sizes, interrupting ratings, sensor ratings, and control units, refer to Masterpact MTZ Circuit Breakers and Switches – Catalog (0614CT1701).

Masterpact MTZ2/MTZ3 Switches

Masterpact MTZ2/MTZ3 switches are non-automatic switches. The performance level is HA, indicating no protection.

Frame Sizes and Ratings

ANSI C37 Certified Masterpact MTZ2 / MTZ3 Switches

Frame Size

Type

Interrupting Ratings

254 Vac

508 Vac

635 Vac

800 A

HA

65 kA

65 kA

65 kA

1600 A

HA

65 kA

65 kA

65 kA

2000 A

HA

65 kA

65 kA

65 kA

3200 A

HA

65 kA

65 kA

65 kA

4000 A

HA

85 kA

85 kA

85 kA

5000 A

HA

85 kA

85 kA

85 kA

6000 A

HA

85 kA

85 kA

85 kA

For information about available switch models and frame sizes, refer to Masterpact MTZ Circuit Breakers and Switches – Catalog (0614CT1701).

Masterpact MTZ2/MTZ3 Neutral Position on Four Pole (4P) Devices

On four-pole devices, the neutral is on the left side as standard.

For four-pole circuit breakers with performance levels N and H, a version with neutral on the right side is available.

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