It carries a TM240 thermal-magnetic overcurrent release, meaning the thermal element tracks the load current and the magnetic element handles short-circuit trips — no electronic adjustment, just a fixed curve that matches standard feeder and distribution applications. Breaking capacity is specified at four voltage levels: 187 kA at 240 V, 121 kA at 415 V, 36 kA at 440 V, and 17 kA at 690 V. The thermal derating curve is published from 40 °C through 70 °C: it holds 200 A up to 50 °C, then drops to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C.

Siemens 3VA1220-5GF42-0DH0 SENTRON MCCB, 200 A, 4-Pole, Line
Siemens SENTRON 3VA1220-5GF42-0DH0, molded case circuit breaker, 4-pole, 200 A rated continuous current Iu, TM240 thermal-magnetic release, line protection version, with undervoltage release and auxiliary switches.
Specifications
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Product version | Line protection |
| Integrated auxiliary / alarm switch ref. | 3VA9988-0AB12 |
| Parameter | Value |
|---|---|
| Number of poles | 4 |
| Current at 40 °C | 200 A |
| Current at 45 °C | 200 A |
| Current at 50 °C | 200 A |
| Current at 55 °C | 194 A |
| Current at 60 °C | 188 A |
| Current at 65 °C | 182 A |
| Current at 70 °C | 176 A |
| Switching capacity class | M |
| Breaking capacity at 240 V | 187 kA |
| Breaking capacity at 415 V | 121 kA |
| Breaking capacity at 440 V | 36 kA |
| Breaking capacity at 690 V | 17 kA |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | TM240 |
| Parameter | Value |
|---|---|
| Main circuit connection type | lug terminal |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | Yes |
| Voltage trigger | No |
| Trip indicator | Yes |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 3 |
| Parameter | Value |
|---|---|
| Operating temperature, max. | 70 °C |
| Operating temperature, min. | -25 °C |
| Storage temperature, max. | 80 °C |
| Storage temperature, min. | -40 °C |
| Parameter | Value |
|---|---|
| Height | 158 mm |
| Width | 140 mm |
| Depth | 70 mm |
Product details
Frequently asked questions
What is the breaking capacity of 3VA1220-5GF42-0DH0 at 415 V?
121 kA at 415 V, with ratings also published at 240 V (187 kA), 440 V (36 kA), and 690 V (17 kA).
What does the TM240 release mean on this MCCB?
TM240 is a thermal-magnetic fixed-trip release rated for 200 A continuous current. The thermal element protects against overloads; the magnetic element handles short-circuit trips. No electronic adjustment — the curve is fixed for standard distribution protection.
Where can I buy 3VA1220-5GF42-0DH0?
Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.