3LD27140TK53 | SENTRON, Switch disconnector 3LD, emergency switchingoff switch, 3 pole, Iu: 100 A, operating power / at AC23 A 400 V: 37 kW, floor mounting with door coupling, rotary operating mechanism, Red / yellow, 4hole mounting of the handle Siemens

Name: 3LD27140TK53 | SENTRON, Switch disconnector 3LD, emergency switchingoff switch, 3 pole, Iu: 100 A, operating power / at AC23 A 400 V: 37 kW, floor mounting with door coupling, rotary operating mechanism, Red / yellow, 4hole mounting of the handle Siemens - myelectric.in
Brand: Siemens
SKU: 3LD27140TK53
Price: 11498.50 INR
Availability: InStock

SKU: 3LD27140TK53

Original price was: ₹19,825.00.Current price is: ₹11,498.50. Excl. GST

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The Siemens 3LD27140TK53 is a switch disconnector, engineered for reliable circuit protection and isolation in demanding Indian and international installations. Key ratings include 100 A, 400V AC, 3 Poles. Buy the 3LD27140TK53 | SENTRON, Switch disconnector 3LD, emergency switchingoff switch, 3 pole, Iu: 100 A, operating power / at AC23 A 400 V: 37 kW, floor mounting with door coupling, rotary operating mechanism, Red / yellow, 4hole mounting of the handle Siemens online at myelectric.in with GST invoice, genuine-product assurance, and fast delivery across India — bulk and worldwide export enquiries welcome.

📋 Technical Specifications

Parameter	Value
Brand	Siemens
Part Number / SKU	3LD27140TK53
Category	Switch Disconnector
Current Rating	100 A
Voltage Rating	400V AC
Poles	3 Poles
Power Rating	37 kW
Standards	IEC 60947-3 (disconnectors)
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

100 A current rating — confirmed from product specifications; size wiring and terminals to match or exceed this value.
400V AC operating voltage — compatible with standard LV distribution voltages used in Indian industrial installations.
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 100 A rating on the 3LD27140TK53?

A: The 100 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 3LD27140TK53 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 3LD27140TK53 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.

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