3KL8121-1TA00 | SDF size 1 32 A TP DIN Open execution – Siemens

Name: Siemens 3KL8121-1TA00 SDF Size 1 Motor Starter
Brand: Siemens
SKU: 3KL8121-1TA00
Price: 2145.55 INR
Availability: InStock

SKU: 3KL8121-1TA00

Original price was: ₹4,565.00.Current price is: ₹2,145.55. Excl. GST

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📋 Technical Specifications

Parameter	Value
Brand	Siemens
Part Number / SKU	3KL8121-1TA00
Category	Switch Disconnector Fuse (SDF)
Current Rating	32 A
Poles	3 Poles
Execution	Open (panel mounting)
Standards	IEC 60947-3 (disconnectors)
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

32 A current rating — confirmed from product specifications; size wiring and terminals to match or exceed this value.
Manufactured to IEC 60947-3 (disconnectors), IEC 60898, IS 13947, IS 8828 — complies with Indian BIS and IEC international safety standards.
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: What is the significance of the 32 A rating on the 3KL8121-1TA00?

A: The 32 A rating is the device’s maximum continuous current carrying capacity under specified conditions (typically 40°C ambient). For circuit design, use 80% of this value as the design current to allow for derating due to grouping, temperature, and future load growth.

Q: How many padlocks can be applied to the 3KL8121-1TA00 for LOTO safety?

A: The Siemens switch disconnector supports up to 3 simultaneous padlocks on the OFF-position locking facility. This allows multiple contractors or maintenance teams to each apply their own padlock, ensuring the circuit cannot be re-energised until all teams have removed their lock — a critical requirement for multi-contractor LOTO procedures.

Q: Can the 3KL8121-1TA00 make and break load current, or is it for isolation only?

A: This is a switch-disconnector (not a pure isolator), meaning it is rated to make and break load currents up to its rated current under AC-22A or AC-23A utilisation categories. Pure isolators must only be operated on de-energised circuits. The Siemens switch-disconnector can therefore be used for operational switching, not just maintenance isolation.