Siemens SENTRON 3VA2140-8HM36-0AA0, Molded Case Circuit Breaker, 3-pole, 40 A continuous, line protection, 800 V insulation voltage, 86 mm depth.
| Parameter | Value |
|---|---|
| Product designation | Molded case circuit breaker |
| Brand / range | SENTRON |
| Parameter | Value |
|---|---|
| Number of poles | 3 |
| Rated operational voltage Ue (AC) | 690 V |
| Rated insulation voltage Ui | 800 V |
| Current at 40 °C | 40 A |
| Current at 45 °C | 40 A |
| Current at 50 °C | 40 A |
| Current at 55 °C | 40 A |
| Current at 60 °C | 40 A |
| Current at 65 °C | 40 A |
| Current at 70 °C | 40 A |
| Switching capacity class | L |
| Breaking capacity at 240 V | 440 kA |
| Breaking capacity at 415 V | 330 kA |
| Breaking capacity at 440 V | 330 kA |
| Breaking capacity at 500 V | 220 kA |
| Breaking capacity at 690 V | 52.5 kA |
| Power loss, max. | 1.2 W |
| Parameter | Value |
|---|---|
| Overcurrent release (trip unit) type | ETU330 |
| Overcurrent protection function | LIG |
| Ground-fault monitoring | Summation current formation L-conductor |
| Grounding protection function | Yes |
| Parameter | Value |
|---|---|
| Main circuit connection type | double-sided box terminal |
| Main circuit connector arrangement | Front terminal |
| Protection class (IP), front | IP40 |
| Parameter | Value |
|---|---|
| Undervoltage release | No |
| Voltage trigger | No |
| Trip indicator | No |
| Communication function | No |
| Measurement function | No |
| Motor drive option | Yes |
| Auxiliary CO contacts | 0 |
| Parameter | Value |
|---|---|
| Operating temperature, max. | 70 °C |
| Operating temperature, min. | -25 °C |
| Storage temperature, max. | 80 °C |
| Storage temperature, min. | -40 °C |
| Parameter | Value |
|---|---|
| Mechanical service life (operating cycles), typ. | 25 000 |
| Height | 181 mm |
| Width | 105 mm |
| Depth | 86 mm |
| Height (in) | 7.13 in |
| Width (in) | 4.13 in |
| Depth (in) | 3.39 in |
At 240 V it interrupts 440 kA; at 415 V and 440 V it's 330 kA; at 500 V it's 220 kA; and at 690 V it's 52.5 kA. The breaker also includes summation-current ground-fault monitoring, which sums the phase conductors to detect leakage without a separate GFCI module.
The 105 mm width for a 3-pole 40 A breaker is compact for its class; it leaves room alongside for other SENTRON or SIRIUS components on the same rail. Power loss is only 1.2 W maximum, so heat buildup in a dense enclosure is minimal.
The SENTRON series is designed to meet IEC 60947-2 and UL 489 standards for molded case circuit breakers. Specific RoHS and REACH declarations are part of the Siemens standard documentation package for this order code.
Both are 3-pole SENTRON MCCBs on the same DIN-rail footprint, so the mechanical fit is identical. The difference is in the internal trip unit and accessories — the 8HM36 variant is a line-protection breaker with ground-fault summation, while the 8JQ32 variant is a different configuration. If the panel wiring and protection scheme match the 8HM36's characteristics, it swaps in without rewiring.
Submit an RFQ through the storefront. The part is sourced through independent distribution channels; current pricing and stock levels are confirmed at quote time.
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