Electronic Type Moulded Case Circuit Breaker

For modern power systems demanding precision, intelligence, and reliability, the Electronic Type Moulded Case Circuit Breaker by Shanghai DADA Electric CO., LTD. sets a new standard in low-voltage protection. Unlike traditional thermal-magnetic breakers, this intelligent MCCB uses a microprocessor-based electronic trip unit to deliver highly accurate, programmable overcurrent protection—immune to ambient temperature fluctuations.

With adjustable settings from 40% to 100% In (thermal) and 1.5× to 12× In (magnetic), it offers unmatched flexibility for complex coordination in data centers, industrial plants, hospitals, and renewable energy systems. Rated from 100A to 1600A at 400V/415V, it combines compact design with advanced functionality—and includes fail-safe direct-trip during extreme faults, even if the electronics fail.

Key Specifications

Model: CDADA DAM2 / DE Series (Electronic Type Moulded Case Circuit Breaker)

Type: Electronic Moulded Case Circuit Breaker

Poles: 3P / 4P

Rated Voltage (Ue): 400V / 415V AC

Rated Current (In): 100A – 1600A

Trip Unit: Microprocessor-based electronic release

Thermal Adjustment (Ir): 40% – 100% of In

Magnetic Adjustment (Im): 1.5× – 12× In

Advantages

★ Wide range:100A to 1600A(AC)

★ Compact dimensions

★ Adjustable thermal setting(40-100%)In.

★ Adjustable magnetic setting(1.5-12times)In.

★ Push to trip button provision.

★ Separate main and arcing contacts

★ Wide range of accessories.

Electronic release characteristic curve

Electrical parameters

Table 1 PR211 type

S.No.

Function

Settings

Type

PR211

PR211

PR211

PR211

Factroy reset

Poles

3P

3P

3P

3P

Rating (A)

250

400

800

1600

1

L

Overload Current Setting (A)

(0.4,0.5,0.6,0.7,0.8,0.9,0.95,1.0)xIn

(0.4,0.5,0.6,0.7,0.8,0.9,0.95,1.0)xIn

(0.4,0.5,0.6,0.7,0.8,0.9,0.95,1.0)xIn

(0.4,0.5,0.6,0.7,0.8,0.9,0.95,1.0)xIn

1.0In

2

Time Delay at Overload Current Setting

3S,6S,12S,18S

3S,6S,12S,18S

3S,6S,12S,18S

3S,6S,12S,18S

3S

3

I

Instantaneous Current Setting

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

10In

Table 2 PR212 type

S.No.

Function

Settings

Type

PR212

PR212

PR212

PR212

Factroy reset

Poles

3P

3P

3P

3P

Rating (A)

250

400/630

800

1600

1

L

Overload Current Setting (A)

(0.4,0.5,0.55,0.6,0.65,0.7,0.75,0.8)xIn

(0.4,0.5,0.55,0.6,0.65,0.7,0.75,0.8)xIn

(0.4,0.5,0.55,0.6,0.65,0.7,0.75,0.8)xIn

(0.4,0.5,0.55,0.6,0.65,0.7,0.75,0.8)xIn

1.0In

2

Time Delay at Overload Current Setting

3S,6S,12S,18S

3S,6S,12S,18S

3S,6S,12S,18S

3S,6S,12S,18S

3S

3

S

Short - Circuit Current Setting (A)

(1, 2, 3, 4, 6, 8, 10，OFF)xIn

(1, 2, 3, 4, 6, 8, 10,OFF)xIn

(1, 2, 3, 4, 6, 8, 10,OFF)xIn

(1, 2, 3, 4, 6, 8, 10,OFF)xIn

6In

4

Time Delay at Short Circuit Current Setting

0.05, 0.1, 0.25, 0.5

0.05, 0.1, 0.25, 0.5

0.05, 0.1, 0.25, 0.5

0.05, 0.1, 0.25, 0.5

0.1S

5

I

Instantaneous Current Setting

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

(1.5, 2, 4, 6, 8, 10, 12,OFF)xIn

10In

6

G

Ground Fault Current Setting (A)

(0.2,0.3,0.4, 0.6,0.8,0.9，1.0, OFF)xIn

(0.2,0.3,0.4, 0.6,0.8,0.9，1.0, OFF)xIn

(0.2,0.3,0.4, 0.6,0.8,0.9，1.0, OFF)xIn

(0.2,0.3,0.4, 0.6,0.8,0.9，1.0, OFF)xIn

1.0In

7

Time Delay at Ground Fault Setting

0.1, 0.2, 0.4, 0.8

0.1, 0.2, 0.4, 0.8

0.1, 0.2, 0.4, 0.8

0.1, 0.2, 0.4, 0.8

0.4S

8

Selection of electric or electronic parameters set

Function SET (switch ELT/MAN)

9

Used for setting parameters of dip switch of zero line

InN=%In,switch 50/100

10

Socket for connection measuring device

Panel socket

Why Choose CDADA Electronic MCCB?

★ True Intelligence, Not Just Automation
The microprocessor continuously analyzes current waveforms, enabling precise inverse-time, definite-time, and instantaneous protection—with no drift due to heat or aging.

★ Fail-Safe Design
Even if the electronic circuit fails, a direct electromagnetic latch ensures the breaker trips during severe short circuits—meeting IEC 60947-2 safety redundancy requirements.

★ Superior Coordination
Ultra-wide adjustment ranges (40–100% Ir, 1.5–12× Im) allow perfect coordination with upstream/downstream devices—minimizing outage zones.

★ Future-Proof Infrastructure
Compatible with optional communication modules (Modbus RTU, Profibus) for integration into Building Management Systems (BMS) or smart grids.

★ Global Quality, Competitive Price
Manufactured under ISO 9001 in Shanghai, with international certifications—offering European-level performance at Asian cost efficiency.

★ We have a dedicated team of 15 engineers focused on product development, improvement, and customization.

Ideal Applications

Data Centers: Prevent cascading failures with precise selective tripping

Hospitals: Ensure uninterrupted power for life-support systems

Industrial Automation: Coordinate with VFDs, soft starters, and robotics

Solar/Wind Farms: Adapt to variable generation profiles

Smart Commercial Buildings: Enable energy monitoring without extra meters

Frequently Asked Questions (FAQ)

Q1: What makes an electronic MCCB different from a thermal-magnetic one?

A1: Electronic Type Moulded Case Circuit Breakers use a microprocessor to analyze current and trigger trips with high precision. They’re not affected by ambient temperature, offer wider adjustment ranges, and can provide load data logging—unlike bimetal/solenoid-based thermal-magnetic types.

Q2: Is the 1600A electronic MCCB available in 4-pole configuration?

A2: Yes—all CDADA electronic MCCBs from 250A to 1600A are available in both 3P and 4P versions.

Q3: What happens if the electronic trip unit fails during a short circuit?

A3: The breaker includes a mechanical backup: during extreme fault currents (>12×In), a magnetic latch triggers direct opening—ensuring safety even with electronics offline.

Q4: Can I monitor real-time current values?

A4: Yes—the electronic trip unit displays instantaneous, max, min, and average current over selectable time windows (e.g., 24h), useful for energy management.

Q5: Why choose CDADA over other intelligent MCCB brands?

A5: CDADA offers:

● True dual-range adjustability (many competitors limit Im to ≤10×)

● Fail-safe mechanical backup (not all “electronic” MCCBs have this)

● Compact size—fits legacy panels without modification

● Strong global certification portfolio (ASTA, KEMA, CE)

● OEM-friendly pricing with technical support in English