DAM3-400 MCCB Molded Case Circuit Breaker

DAM3-400 MCCB Molded Case Circuit Breaker
DAM3-400 MCCB Molded Case Circuit Breaker
Request a Quote

Overview
The rated current of the Dada DAM3-400 molded case circuit breaker can reach up to 400A. These electrical devices are suitable for the protection of power distribution circuits with an alternating current of 50-60Hz and a rated operating current to 1000A. They can also be used in electric motors for infrequent starting and overload protection as well as protection against short circuiting and undervoltage conditions.

Compared to the DAM1 series, the DAM3 series are designed for smaller volume, higher breaking capacity, offering better energy savings.

Electrical parameters of DAM3-400 molded case circuit breaker
Rated current of frame size Inm [A]
400
Rated current [A] 200-400
Number of poles 3 / 4
Rated operating voltage (AC)50-60HZ [V] 400/690
DC [V] 250/1000
Rated impulse withstand voltage Uimp [KV] 8
Rated insulation voltage Ui [V] 750
Test voltage at industrial frequency for 1 min [V] 3000
Rated ultimate short-circuit breaking capacity Icu [KA] C N S H
(AC)50-60HZ 220/230V[KA] 45 55 80 105
(AC)50-60HZ 400/415V [KA] 30 36 55 70
(AC)50-60HZ 690V [KA] 12 15 20 25
(DC)250V-2 Poles in series 30 35 50 65
(DC)500V-2 Poles in series 12 18 22 30
(DC)750V-4 Poles in series 18 30 42 55
(DC)1000V-4 Poles in series 15 25 35 45
Rated service short-circuit breaking capacity, Ics [KA]



(AC)50-60HZ 220/230V [%Icu] 60% 60% 60% 60%
(AC)50-60HZ 400/415V[%Icu] 60% 60% 60% 60%
(AC)50-60HZ 690V [%Icu] 60% 60% 60% 60%
category of utilisation(EN 60947-2) A
Isolation condition Bitmap
Reference standard IEC/EN 60947-2/GB 14048.2
Interchangeability Bitmap
Versions Fixed Bitmap
Plug-in Bitmap
Draw-out Bitmap
Physical parameters of DAM3-400 molded case circuit breaker
Endurance Total cycles 8000
Electrical endurance 1000
Mechanical endurance 7000



Basic dimensions-fixed version
3/4 Poies W[mm] 120/159 140/210
3/4 Poies H[mm] 100 100
H1[mm] 133.5 135
3/4 Poies L[mm] 180 215

Introduction
The DAM3-400 molded case circuit breaker automatically cuts off the current when the current exceeds the release setting. The molded case refers to the plastic insulator used as the frame of the device to insulate the conductor and the metal grounding component.

Size of DAM3-400 molded case circuit breaker

DADA company manufactures miniature electrical switches such MCB Circuit breakers, RCD circuit breakers, ELCB breakers, RCBO, RCB circuit breakers, molded case circuit breaker, DADA started miniature circuit breaker manufacturing from 2004, already offered million various electrical circuit breakers into global markets for different electrical MCB breaker clients.

Index
electrical switch, MCCB, low voltage circuit breaker, circuit protector

Related products
Send Message
Inquiry
Inquiry