C10F42D040

What type of device is this?

It is a fixed-mount molded-case circuit breaker designed for power distribution applications, from the ComPacT NSX new generation range (device short name NSX100F).

What is the rated current and reference temperature?

The rated current is 40 A at 40°C (In = 40 A @ 40°C).

What system voltage and frequency is it designed for?

It is intended for AC networks at 50/60 Hz, with a rated operational voltage up to 690 V AC (Ue = 690 V AC).

How many poles does it have, and how is the neutral arranged?

It is a 4-pole breaker (4P) with the neutral position on the left. The protected poles can be configured as 4D, 3D + N/2, or 3D (depending on the neutral protection setting).

What is the short-circuit breaking capacity at common voltages?

Rated ultimate short-circuit breaking capacity (Icu) includes 85 kA at 220/240 V AC and 36 kA at 380/415 V AC. Additional Icu values include 35 kA at 440 V AC, 25 kA at 500 V AC, 22 kA at 525 V AC, and 8 kA at 660/690 V AC.

What is the performance level for 415 V applications?

It is performance level F, rated 36 kA at 415 V AC.

Which trip unit is fitted, and what protection functions are provided?

It is fitted with a MicroLogic 2.2 electronic trip unit providing L (long-time overload), So (short-time short-circuit with fixed delay), and I (instantaneous short-circuit) protection functions.

Is the long-time (overload) protection adjustable?

Yes. The long-time pickup (Ir) is adjustable in 9 settings, with an adjustment range of 18–40 A.

How are short-time and instantaneous protections set?

Short-time pickup (Isd) is adjustable in 9 settings from 1.5 to 10 × Ir, with a fixed short-time delay. Instantaneous pickup (Ii) is fixed at 600 A.

What neutral protection settings are available?

Neutral protection settings include 0.5 × Ir (3D + N/2), 1 × Ir (4D), or no neutral protection (3D).

Does it include earth-leakage (ground-fault) protection?

No. Earth-leakage protection is not included (without earth-leakage protection).

Can it be used as an isolating device?

Yes. It is suitable for isolation in accordance with EN/IEC 60947-2.

What are the insulation and impulse withstand ratings?

Rated insulation voltage is 800 V AC (Ui = 800 V), and rated impulse withstand voltage is 8 kV (Uimp = 8 kV).

What are the physical dimensions and approximate weight?

Approximate dimensions are 140 mm (W) × 161 mm (H) × 86 mm (D), with a net weight of about 2.4 kg.

What mounting method and operating handle are used?

It is a fixed-mounted breaker intended for backplate mounting, operated via a toggle handle.

What ingress and impact protection ratings does it have?

It is rated IP40 for ingress protection and IK07 for impact resistance.

What operating environment ranges are specified?

Operating ambient temperature is specified from -25°C to 70°C, storage from -50°C to 85°C, and relative humidity from 0% to 95%.

What altitude limits apply?

It is specified for use from 0 to 2000 m without derating, and from 2000 m to 5000 m with derating.

Are there built-in indicators for operating and overload status?

Yes. Local signaling includes a flashing green LED for ready-to-operate indication, plus overload indication LEDs: orange at 90% Ir and red at 105% Ir.

How many auxiliary accessory slots are available?

There are 5 slots for electrical auxiliaries.

What durability figures are stated for mechanical and electrical endurance?

Mechanical durability is stated as 50,000 cycles. Electrical durability is stated as up to 50,000 cycles at 440 V and In/2, 30,000 cycles at 440 V and In, 20,000 cycles at 690 V and In/2, and 10,000 cycles at 690 V and In.

What standards and compliance statements are associated with the device?

It is designed to EN/IEC 60947 and includes compliance statements such as EU RoHS compliant and REACh declaration availability. It is also described as a Green Premium product.

What is the power dissipation per pole?

Power dissipation per pole is specified as 1.34 W.

How is the breaker positioned for installation and cabling access?

It supports horizontal and vertical mounting, can be installed flat on the back, and provides both upside and downside connections from the front.

What is the connection pitch?

The connection pitch is specified as 35 mm.

What does the thermal memory feature do?

Thermal memory is specified as 20 minutes before and after tripping, helping reflect recent load history when assessing overload conditions.

Which utilization category does it fall under?

It is categorized as Utilization Category A.

Is zone selective interlocking (ZSI) included?

No. Zone selective interlocking (ZSI) is specified as without.

What packaging weight and dimensions are typically associated with a single unit?

A typical single-unit package is listed at approximately 2.398 kg with package dimensions around 14.5 cm × 14.5 cm × 19.6 cm.