C11F3TM063L

What type of circuit breaker is this?

The C11F3TM063L is a ComPacT NSXm moulded-case circuit breaker designed for electrical distribution. It has three poles, protection on all three poles and a thermal-magnetic TM-D trip unit.

What protection functions does the trip unit provide?

The TM-D trip unit provides thermal protection against sustained overloads and magnetic protection against short circuits. Its long-time protection threshold is adjustable, while the instantaneous magnetic threshold is fixed.

What are the rated current and operational voltage?

The rated current is 63 A at an ambient temperature of 40 °C. The rated operational voltage is 690 V AC, and the breaker is intended for AC networks operating at 50 or 60 Hz.

What is the short-circuit breaking capacity at 415 V AC?

At 380–415 V AC, both the rated ultimate short-circuit breaking capacity (Icu) and the rated service short-circuit breaking capacity (Ics) are 36 kA, in accordance with IEC 60947-2. Breaking capacity varies with the operating voltage.

Can the overload protection setting be adjusted?

Yes. The long-time thermal protection pick-up can be adjusted from 0.7 to 1 times the rated current. The long-time protection delay is fixed, and the instantaneous magnetic protection pick-up is fixed at 800 A.

Does the breaker include earth-leakage protection?

No. This configuration provides overload and short-circuit protection but does not include earth-leakage protection.

Which conductors can the connection terminals accommodate?

The EverLink terminals accept rigid or stranded copper and aluminium conductors with cross-sectional areas from 2.5 to 95 mm². Flexible copper conductors are accepted from 2.5 to 70 mm².

What are the dimensions and weight?

The breaker measures 81 mm wide, 137 mm high and 80 mm deep. Its net weight is 1.06 kg, making these useful reference figures when planning panel space and mounting arrangements.

How is the breaker mounted and operated?

It is a fixed-mounted breaker with backplate mounting support and toggle operation. The specified mounting positions are horizontal, vertical or flat on its back, with front-access connections at both the upper and lower terminals.

What auxiliary devices can be fitted?

The breaker has one slot for an OF auxiliary switch, one slot for an SD alarm switch and one slot for either an MN undervoltage release or an MX shunt release. These provisions allow auxiliary signalling and release functions to be added.

What operating temperatures and altitude limits apply?

The specified ambient operating temperature range is −25 to 70 °C, and the storage temperature range is −50 to 85 °C. Operation is specified up to 2,000 m without derating and up to 5,000 m with derating. The 63 A current rating is stated at 40 °C.

Is the breaker suitable for isolation?

Yes. The C11F3TM063L is specified as suitable for isolation in accordance with IEC 60947-2 and is classified as a utilisation category A circuit breaker.

What ingress and impact protection ratings are specified?

The specified ingress protection rating is IP40 in accordance with IEC 60529. Its mechanical impact protection rating is IK07 in accordance with IEC 62262.