UT 6-TMC M...

103943_en_04

PHOENIX CONTACT

4

3.2

Effect on thermal tripping of mounting in rows

The mutual thermal effect is tantamount to an increase in the

ambient temperature (see page 5). This depends on the

following:

–

The nominal current

–

The ambient temperature

–

The number of devices

–

The distance between devices

The nominal device current can be either overdimensioned

or limited. When the UT 6-TMC M is mounted in rows, the

correction factor is usually in the range of 1.25 or at

80% (reciprocal) in relation to the limiting nominal current.

These values apply in the event of continuous load and at an

ambient temperature of +23°C.

Since the thermal effect varies for each planned installation

when mounting in rows, the correction factors must be

defined individually and tested.

Calculation example for overdimensioning

5 circuit breakers with I

The ambient temperature is +23°C.

3.3

Internal resistance of the UT 6-TMC M

Measurement between the LINE and LOAD connections.

Tolerance: ±10%

4

Mechanical data

NOTE: When mounted in rows with simultaneous

load, a mutual thermal effect occurs.

Nominal current when not mounted

in rows

I

Typical correction factor

d

Theoretical nominal current when

mounting in rows

I

= 12.5 A

Nominal current

Resistance

0.5 A

4.37

Ω

1.0 A

0.95

Ω

2.0 A

0.33

Ω

4.0 A

88.0 m

Ω

5.0 A

55.8 m

Ω

6.0 A

41.7 m

Ω

8.0 A

22.2 m

Ω

10.0 A

12.3 m

Ω

12.0 A

10.9 m

Ω

15.0 A

8.3 m

Ω

16.0 A

7.7 m

Ω

Fixing

Mounting method

On a DIN rail according to DIN EN 60715, NS 35N/7,5 or NS 35/15

The tripping characteristics are not dependent on the mounting position.

Plug-in bridge, for cross connection in the bridge shaft

FBS x-6 plug-in bridge (see "Accessories" on page 2)

Connection polarity

Independent polarity (for DC) for the LINE and LOAD connections

Suitability

"Factory wiring"

Weight

51 g

Housing material

PA 66

Fuse type

Medium blow fuse

Inflammability class according to UL 94

V0

Maximum number of cycles

6000 at 1 x I

n

Connection terminal block

Screw connection

M4

Connection capacity

Solid

Stranded

With ferrule

1 conductor

0.2 mm² ... 10 mm²

0.2 mm² ... 10 mm²

0.25 mm² ... 6 mm²

2 conductors (two conductors with same cross-section, ferrule without

plastic sleeve)

0.2 mm² ... 2.5 mm²

0.25 mm² ... 1.5 mm²

2 stranded conductors with a TWIN ferrule

0.5 mm² ... 4 mm²

Stripping length

12 mm

Tightening torque (EN 60934)

1.5 Nm ... 1.8 Nm