C253TM250D

NSX250 DC 3P TM-DC 250A TU

Trade Price

£426.16

Per

1

Unit

EA

Pack Quantity

1

C253TM250D

Information

TM250D/DC is a 3 poles thermal-magnetic trip unit used on ComPacT NSX 250DC circuit breakers. This 250A rating thermal-magnetic trip unit is an optimal choice for DC distribution systems. It embeds an adjustable thermal overload protection and an adjustable magnetic protection against short-circuits.

Technical Specifications

Range

ComPacT new generation

Range of product

ComPacT NSX100...250 DC new generation

Product or component type

Trip unit

Trip unit name

TM-D

Trip unit technology

Thermal-magnetic

Range compatibility

ComPacT new generation NSX250 DC

Device application

Distribution

Poles description

3P

Protected poles description

3D

Trip unit protection functions

LI

Protection type

L : for overload protection (thermal) I : for short-circuit protection (magnetic)

Trip unit rating

250 A at 40 °C

[Ue] rated operational voltage

750 V DC

Network type

DC

Circuit breaker mounting mode

Fixed

Long-time pick-up adjustment type Ir (thermal protection)

Adjustable

[Ir] long-time protection pick-up adjustment range

0.7...1 x In

Long-time protection delay adjustment type tr

Fixed

Instantaneous protection pick-up adjustment type Ii

Adjustable

[Ii] instantaneous protection pick-up adjustment range

5...10 x In

earth-leakage protection

Without

standards

EN/IEC 60947-2

Electrical shock protection class

Class II

Pollution degree

3 conforming to IEC 60947-1

IP degree of protection

IP40 conforming to IEC 60529

Ambient air temperature for operation

-25…70 °C

Ambient air temperature for storage

-50…85 °C

Unit Type of Package 1

PCE

Number of Units in Package 1

1

Package 1 Height

6.6 cm

Package 1 Width

10.0 cm

Package 1 Length

11.5 cm

Package 1 Weight

420.0 g

Unit Type of Package 2

S03

Number of Units in Package 2

28

Package 2 Height

30.0 cm

Package 2 Width

30.0 cm

Package 2 Length

40.0 cm

Package 2 Weight

12.16 kg

Warranty

18 months

Document Links

Catalogue page

Datasheet