Handle Type B FN 100A/125A/160A/200A/250A | L&T – SK91278OOOO

Name: L&T Handle Type B FN 100A/125A/160A/200A/250A | High-Visibility Circuit Breaker Handle
Brand: Lauritz Knudsen (L&T)
SKU: SK91278OOOO
Price: 1101.60 INR
Availability: InStock

SKU: SK91278OOOO

Original price was: ₹1,620.00.Current price is: ₹1,101.60. Excl. GST

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Sourced through authorised channels, the SK91278OOOO SK91278OOOO switch disconnector accessory delivers dependable performance for reliable circuit protection and isolation. myelectric.in stocks the Handle Type B FN 100A/125A/160A/200A/250A | L&T 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

Parameter	Value
Brand	SK91278OOOO
Part Number / SKU	SK91278OOOO
Category	Switch Disconnector Accessory
Tripping Curve	Curve B
Standard	IEC 60947 (tested as part of the parent device certification)
Certifications	BIS certified where applicable

⚡ Key Features

Genuine SK91278OOOO OEM accessory — manufactured to the same specification and tested to the same standards as the parent device; ensures mechanical and electrical compatibility that third-party alternatives cannot guarantee.
Direct clip-on or screw-mount to parent device — fits without panel modification or additional wiring between the accessory and main device; field-retrofittable.
Manufactured to IEC 60947 (tested as part of the parent device certification) — complies with the applicable Indian BIS and IEC international standards for this product category.
BIS certified where applicable — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
Genuine authorised SK91278OOOO 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 SK91278OOOO and what loads is it optimised for?

A: Curve B on the SK91278OOOO 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 SK91278OOOO 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 SK91278OOOO switch-disconnector can therefore be used for operational switching, not just maintenance isolation.

Q: How many padlocks can be applied to the SK91278OOOO for LOTO safety?

A: The SK91278OOOO 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.