The Siemens SENTRON 3VA1025-3ED32-0CH0 is a 3-pole molded case circuit breaker (MCCB) rated for line-protection duty with a continuous current Iu of 25 A at 40 °C. It carries a TM210 thermal-magnetic overcurrent release — fixed thermal and magnetic trip settings, no electronic adjustment — which makes it a straightforward drop-in for distribution panels where coordination is already set and no field tweaking is needed.
Breaking capacity and selectivity headroom
At 240 V the 3VA1025-3ED32-0CH0 interrupts 75.6 kA, at 415 V it clears 52.5 kA, at 440 V it handles 32 kA, and at 690 V it still breaks 7.5 kA. Those numbers span the common industrial voltage tiers — 240 V single-phase branch, 415 V three-phase distribution, and 690 V heavy plant — so the breaker gives selectivity headroom across a wide fault-current range without needing a larger frame. The 52.5 kA at 415 V is the figure most panel designers will check first for IEC 60947-2 coordination studies.
Thermal derating and ambient tolerance
Rated continuous current holds at 25 A from 40 °C up to 50 °C, then derates to 24 A at 55 °C, 23.5 A at 60 °C, 23 A at 65 °C, and 22.5 A at 70 °C. That means in a warm panel — say 50 °C ambient — the breaker still delivers full 25 A without derating. The operating temperature range is -25 °C to 70 °C, with storage from -40 °C to 80 °C.
Undervoltage release and auxiliary contacts
This MCCB includes an undervoltage release (UVR) — designated as type with the TM210 release — plus a 2 auxiliary switch + 1 trip alarm switch (HQ configuration). The auxiliary trip module is order code 3VA9608-0BB24. That alarm contact is useful for remote fault indication on a PLC input or annunciator panel. The mechanical endurance is 15 000 operations.
Lifecycle and sourcing
Listed as current production. The 3VA1025-3ED32-0CH0 is in active manufacture and available through independent distribution. Sourced and quoted to order against an RFQ — availability and current pricing confirmed at quote time.
Mounting and integration
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a compact 3-pole MCCB that mounts on a DIN rail or panel base. The front face carries an IP40 protection class, suitable for enclosed distribution boards. The auxiliary contact wiring is accessible without removing the breaker.