3TG1001-0BB4 | Siemens 3TG1 Power Relay 8.4 A, 3 Pole, 24 V DC, 1 NC, AC3 Duty, Screw Terminal – Siemens

Name: 3TG1001-0BB4 | Siemens 3TG1 Power Relay 8.4 A, 3 Pole, 24 V DC, 1 NC, AC3 Duty, Screw Terminal - Siemens - myelectric.in
Brand: Siemens
SKU: 3TG1001-0BB4

SKU: 3TG1001-0BB4

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The Siemens 3TG1001-0BB4 is a relay, engineered for motor control and switching in demanding Indian and international installations. Key ratings include 8.4 A, 24V AC, 3 Poles. Buy the 3TG1001-0BB4 | Siemens 3TG1 Power Relay 8.4 A, 3 Pole, 24 V DC, 1 NC, AC3 Duty, Screw Terminal 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	3TG1001-0BB4
Category	Relay
Contact Configuration	1 NC (Normally Closed)
Current Rating	8.4 A
Voltage Rating	24V AC
Poles	3 Poles
Rated Frequency	50/60 Hz
Mounting	35mm DIN rail or plug-in socket
Standard	IEC 60947-5-1
Certifications	BIS certified, CE, cULus (select models)

⚡ Key Features

1 NC (normally-closed) contact for interlocking, fail-safe, and alarm circuits — all contacts independently switchable up to the contact voltage rating.
Manufactured to IEC 60947-5-1 — 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: What is the significance of the 8.4 A rating on the 3TG1001-0BB4?

A: The 8.4 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: What does the 1 NC (Normally Closed) contact configuration on the 3TG1001-0BB4 mean?

A: These contacts change state when the device is operated or energised. Size the contact for the actual switched load — pilot duty ratings are typically lower than the main contact rating.

Q: Can the 3TG1001-0BB4 relay be mounted on a DIN rail socket for easy replacement?

A: This Siemens relay typically requires direct panel or DIN rail wiring. For applications requiring frequent relay replacement, consider the plug-in relay variant of this series with a matching socket base.

Q: How do I test the 3TG1001-0BB4 relay in the field without a signal source?

A: Most Siemens relays can be manually forced using the test button (if fitted) — this mechanically closes the relay contacts without energising the coil, allowing functional testing of the controlled circuit. For coil testing, use a multimeter to measure coil resistance (typically 500–2000Ω for AC coils at rated voltage) and compare with datasheet values.