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Siemens 3RT1966-4G Box Terminal Block

$160.00 USD

Sale Sold out

✓ 30-day returns on every item — return policy

ConditionSurplus - Untested MPN3RT1966-4G Stock #0626-01497

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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Product Specifications

Manufacturer: Siemens
MPN / Model: 3RT1966-4G
Product Type: Box Terminal Block
Product Family: SIRIUS
Compatible With: 3RT1, 3RB2, 3RW507 contactors and overload relays, Size S10/S12 (3RT106/3RT107, 3RB106)
Conductor Size (Main Contacts, Solid/Stranded): Min. 95 mm² (AWG 3/0), Max. 300 mm² (600 kcmil)
Conductor Size (Main Contacts, Finely Stranded with Core End Processing): Min. 120 mm², Max. 240 mm²
Conductor Size (Auxiliary Contacts, Dual): Min. 2x 70 mm², Max. 2x 240 mm²
Standard: IEC 60947-1
Revision: E02
Country of Origin: Germany
Certifications: UL Listed, CE, EAC, UKCA
Dimensions (L x W x H): 145 mm x 38 mm x 128.1 mm
Net Weight: 0.68 kg
OEM / Alternate Part Number: 1P3RT1966-4G+SG/250507
Condition: Untested Surplus

Product Description

Siemens 3RT1966-4G is a SIRIUS series box terminal block designed for use with Size S10 and S12 contactors and overload relays, including 3RT106, 3RT107, and 3RB106 models. The unit accommodates large conductor sizes at the main contacts, accepting solid or stranded wire from 95 mm² up to 300 mm² (AWG 3/0 to 600 kcmil), with dual-conductor main contact capability from 2x 70 mm² to 2x 240 mm². Auxiliary contact connections are supported as well. Revision E02 is marked on the unit label. Manufactured in Germany and certified to IEC 60947-1, with UL, CE, EAC, and UKCA markings confirmed on the box label. Identified by catalog number 3RT1966-4G and offered as untested surplus; no testing or verification has been performed by the seller.

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.