3VA6110-6HM31-0AA0

What type of circuit breaker is this and where is it typically used?

It is a SENTRON 3VA6 moulded-case circuit breaker designed for system/line protection in low-voltage distribution, such as switchboards, panelboards, and industrial control panels where adjustable electronic protection is required.

How many poles does it have?

This unit is a 3-pole circuit breaker, intended for three-phase circuits.

What is the rated current, and can the overload setting be adjusted?

The breaker has a rated continuous current (In/Iu) of 100 A, and the long-time (overload) pickup Ir is adjustable from 40 A to 100 A via the electronic trip unit.

Which protection functions are included in the trip unit?

It uses an ETU330 electronic trip unit with LIG protection: L (long-time overload), I (instantaneous short-circuit), and G (ground-fault) protection.

What are the adjustable trip settings available?

Key adjustable ranges include: long-time pickup Ir 40–100 A with long-time delay tr 0.5–17 s; instantaneous pickup Ii 150–1,200 A (approximately 1.5–12 × In); and ground-fault pickup Ig 20–100 A (0.2–1 × In) with ground-fault delay tg 0.1–0.3 s.

Can the ground-fault function be disabled?

Ground-fault protection is provided with adjustable settings, but the device documentation indicates the ground-fault function is not switchable ON/OFF (i.e., it is not intended to be disabled).

What is the short-circuit breaking capacity?

Short-circuit capacity depends on the standard and system voltage. Under IEC 60947, typical values include Icu/Ics up to 110 kA at 240 V and 85 kA at 415 V (and 2.5 kA at 690 V). Under UL 489, typical interrupting ratings include 100 kA at 240 V, 65 kA at 480 V, and 22 kA at 600 V. Always match the rating to the installation voltage and standard being applied.

What voltage levels is it suitable for?

It is intended for low-voltage AC systems up to 690 V (50/60 Hz) depending on the applicable standard and installation requirements. The datasheet also lists a rated insulation voltage up to 800 V.

Does it include main terminals or connection kits as supplied?

It is supplied without main-circuit connection accessories (listed as “without connection”), so suitable line/load terminals or connection kits must be selected separately to suit the conductor type and mounting arrangement.

What are the approximate dimensions and front protection rating?

Approximate overall dimensions are 198 mm (H) × 105 mm (W) × 86 mm (D). The protection class on the front is IP40.

Is a neutral pole included or can a neutral be added later?

A neutral conductor pole is not included, and the device is specified as not upgradeable/retrofittable for neutral conductors.

Are auxiliary contacts included as standard?

No. The unit is specified with 0 changeover (CO) contacts for auxiliary contacts as standard; auxiliary signalling requires separate accessories where applicable.

Does it have undervoltage release or a shunt trip built in?

No. The listed product components indicate no undervoltage release and no voltage trigger (shunt trip) integrated as supplied.

Can it be fitted with a motor operator for remote switching?

Yes. The breaker supports an optional motor drive (motor operator) as an accessory, enabling remote opening/closing where the installation design requires it.

What are the typical operating and storage temperature ranges?

Typical ambient temperature ranges are -25 °C to +70 °C during operation, and -40 °C to +80 °C during storage.

What are the typical endurance and power loss characteristics?

Typical mechanical endurance is around 20,000 operating cycles. Maximum power loss is stated as about 13 W (approximately 4.33 W per pole at rated current). For referencing in documentation, this unit may be identified as Siemens 3VA6110-6HM31-0AA0.