3MT7900-1SL21 | Siemens Sinova Surge Suppressor, RC Element, 110-240 V AC, Suitable For 3MT7 06 – 95 A Contactors, 50/60 Hz – Siemens

Name: 3MT7900-1SL21 | Siemens Sinova Surge Suppressor, RC Element, 110-240 V AC, Suitable For 3MT7 06 - 95 A Contactors, 50/60 Hz - Siemens
Brand: Siemens
SKU: 3MT7900-1SL21
Availability: OutOfStock

SKU: 3MT7900-1SL21

₹1,015.00 Excl. GST

Out of stock

20 People watching this product now!

Order protection

Buy with complete confidence.

We back each order with genuine supply, on-time dispatch and GST or commercial invoicing as required.

Buyer protection on every order

Global DeliveryShipped pan-India and to export markets.

On-Time DeliveryPacked and dispatched on schedule.

100% OriginalFrom brand-authorised channels only.

GST InvoiceCompliant, ITC-ready tax invoice.

Secure PaymentEncrypted, trusted payment gateways.

Also included Dedicated account manager Technical support Bulk & business pricing 3-day replacement

The Siemens 3MT7900-1SL21 is a contactor accessory, engineered for motor control and switching in demanding Indian and international installations. Key ratings include 06–95 A, 110–240V AC. Buy the 3MT7900-1SL21 | Siemens Sinova Surge Suppressor, RC Element, 110-240 V AC, Suitable For 3MT7 06 – 95 A Contactors, 50/60 Hz 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	3MT7900-1SL21
Category	Contactor Accessory
Current Rating	06–95 A
Voltage Rating	110–240V AC
Frequency	60 Hz
Rated Frequency	50/60 Hz
Standard	IEC 60947 (tested as part of the parent device certification)
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

Genuine Siemens 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.
Coil surge suppressor module — absorbs the voltage transient generated when the contactor coil de-energises, protecting PLC transistor outputs and nearby electronics from switching spikes.
Rated for 110–240V AC coil circuits — match the suppressor voltage range to the contactor coil voltage for correct clamping.
Clips directly onto the contactor coil terminals (A1/A2) — no panel space, wiring, or separate mounting required.
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, 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: Is the 3MT7900-1SL21 rated 06–95 A for AC-3 motor duty or AC-1 resistive duty?

A: The 06–95 A rating of this Siemens contactor applies to AC-3 duty (squirrel cage motor starting and running). For AC-1 (resistive/non-inductive) loads, the current can be up to ~1.3× the AC-3 rating. AC-4 (plugging/reversing) requires significant de-rating — consult the Siemens selection table.

Q: Why fit the 3MT7900-1SL21 suppressor module on a contactor coil?

A: When a contactor coil de-energises, the collapsing magnetic field generates a high-voltage transient (several hundred volts to kV) that can destroy PLC transistor outputs, weld small relay contacts, and disturb nearby electronics. The 3MT7900-1SL21 clamps this transient at source. It is strongly recommended whenever a PLC, electronic timer, or sensitive control circuit switches the coil.

Q: Does the 3MT7900-1SL21 suppressor type affect contactor drop-out time?

A: Yes, slightly. RC suppressors and varistors add minimal delay (a few milliseconds) and are suitable for almost all applications. Diode suppressors (DC coils only) give the slowest drop-out — relevant only in fast-reversing or braking applications where contactor release time matters. For standard motor starting duty, the difference is negligible.

Customer Reviews

Rated 0 out of 5

0 reviews

Rated 5 out of 5

Rated 4 out of 5

Rated 3 out of 5

Rated 2 out of 5

Rated 1 out of 5

Reviews

Clear filters

There are no reviews yet.

Be the first to review “3MT7900-1SL21 | Siemens Sinova Surge Suppressor, RC Element, 110-240 V AC, Suitable For 3MT7 06 – 95 A Contactors, 50/60 Hz – Siemens”