8UC6070-0YQB | Siemens Castell Interlock Kit Type B (1 Set = 1 Lock + 1 Key) Suitable For 3VT1 MCCB, 3KT812/14/16, 3KL811/12/15 & 3KA815 Switch – Siemens

SKU: 8UC6070-0YQB

Original price was: $151.39.Current price is: $69.64. Excl. GST

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Sourced through authorised channels, the Siemens 8UC6070-0YQB mccb delivers dependable performance for reliable circuit protection and isolation. myelectric.in stocks the 8UC6070-0YQB | Siemens Castell Interlock Kit Type B (1 Set = 1 Lock + 1 Key) Suitable For 3VT1 MCCB, 3KT812/14/16, 3KL811/12/15 & 3KA815 Switch for contractors, panel builders, and project buyers — buy online with GST invoice, or request a bulk quote for domestic supply and export to UAE, Singapore, UK, USA, Sri Lanka and more.

📋 Technical Specifications

ParameterValue
BrandSiemens
Part Number / SKU8UC6070-0YQB
CategoryMCCB
Series / Model3KA
Tripping CurveCurve B
Rated Operational Voltage (Ue)415V AC (50/60 Hz)
MountingFixed, front connected
Rated Frequency50/60 Hz
StandardIEC 60947-3, IS 13947-3
IP RatingIP20 (open execution), IP65 (with enclosure)
Voltage RatingUp to 690V AC
CertificationsBIS certified, CE, cULus (select models)

⚡ Key Features

  • Thermal-magnetic trip unit — factory-calibrated overload and short-circuit protection; suitable for standard feeder circuits without electronic adjustment.
  • 3KA81 series: 63–160A, 3P+N (4 pole), open execution for panel mounting
  • Manufactured to IEC 60947-2 / IS 13947-2 — complies with the applicable Indian BIS and IEC international standards for this product category.
  • BIS certified, CE, cULus (select models) — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
  • Genuine authorised Siemens product — sourced directly from the official distribution network with full manufacturer traceability and warranty.
  • GST invoice provided for India orders — valid for corporate procurement, government project orders, and public tender supply via myelectric.in.
  • Worldwide export available — UAE, Singapore, UK, USA, Sri Lanka & more. Contact +91 94814 00316 for bulk pricing and international shipping.

❓ Frequently Asked Questions

Q: Why is Curve B specified for the 8UC6070-0YQB and what loads is it optimised for?

A: Curve B on the 8UC6070-0YQB trips magnetically at 3–5× rated current, making it ideal for resistive loads such as incandescent lighting, electric heaters, and PTC elements. Using the wrong curve can cause nuisance tripping (too sensitive) or inadequate protection (not sensitive enough). Always match the curve to the load’s inrush characteristics.

Q: Can the 8UC6070-0YQB be motorised for remote switching and automation?

A: Yes. Siemens MCCBs in this series support rotary handle adaptation and motorised operating mechanisms as accessories, enabling remote ON/OFF switching via PLC, SCADA, or BMS. Motorised MCCBs are used for automatic load management and remote trip in automated distribution systems.

Q: What trip unit type does the 8UC6070-0YQB use — thermal-magnetic or electronic?

A: Refer to the product label or datasheet for the exact trip unit specification. The trip unit determines adjustability and protection accuracy.

Q: Is the 8UC6070-0YQB suitable for use as a motor branch circuit protector (Type E coordination)?

A: MCCBs used for motor branch circuit protection must be coordinated with the downstream overload relay for Type 2 coordination (no damage to contactor or relay on short-circuit). Verify the Siemens coordination table for the specific contactor-overload-MCCB combination to confirm Type 1 or Type 2 coordination is achieved.

Q: Which Siemens accessories are compatible with the 8UC6070-0YQB?

A: The Siemens 3KA series supports snap-on accessories including auxiliary contacts (OF), alarm contacts (SD), shunt trip coils (MX), undervoltage releases (MN), and comb busbars. Accessories are series-specific — always verify compatibility using the Siemens product catalogue before ordering. myelectric.in can advise on the correct accessory part numbers for the 8UC6070-0YQB.

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