Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

SQUARE D Thermal Unit: 20 Trip Class, B70.0 - Electrical
SQUAREElectrical

SQUARE D Thermal Unit: 20 Trip Class, B70.0

SKU 3G-OTH-43426

Brand
SQUARE
Item
D Thermal Unit: 20 Trip Class, B70.0
Category
Electrical
UNSPSC
39121029 — Isolation transformer
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

SQUARE
Manufacturer Part Number
B70.0
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

SQUARE Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the SQUARE D B70.0 thermal unit used for?

The SQUARE D B70.0 thermal unit is an overload relay component used in motor starters to protect motors from overheating due to sustained overcurrent. It is designed for industrial electrical panels and motor control centers, ensuring reliable thermal protection in manufacturing, HVAC, and pumping applications.

What are the specifications of the SQUARE D B70.0 thermal unit?

The SQUARE D B70.0 thermal unit has a trip class of 20 and is identified by manufacturer part number B70.0. It is a direct replacement for compatible Square D motor starters. For exact dimensions and current range, consult the product datasheet or contact 3G Electric for technical support.

Where to buy the SQUARE D B70.0 thermal unit worldwide?

3G Electric supplies the SQUARE D B70.0 thermal unit worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact our team for a quote and lead time; we source and deliver this part to any international destination.

How to select the correct SQUARE D thermal unit for a motor starter?

To select the correct SQUARE D thermal unit, match the motor full-load current (FLA) to the unit's trip range and ensure the trip class (e.g., 20) suits your starting duty. The B70.0 is a Class 20 unit. Always verify compatibility with your Square D starter model. 3G Electric can assist with cross-referencing specifications.

Used in

Common applications for SQUARE
Industrial power distribution — Square D HU362AWC non-fusible safety switch for disconnecting three-phase loads up to 60 A.
Busway branch circuits — Square D PQ4203G fusible bus plug for overcurrent protection in I-Line busway systems.
Panelboard surge protection — Square D HL4IMA24C SPD for transient voltage suppression in 277/480V AC wye systems.
Power distribution in control panels — Square D 9080LBA263106 open distribution block for splitting 400 kcmil conductors.
Machine control stations — Square D 9001BG303 push-button station for open/close/stop operations in industrial machinery.
Motor starting and protection — Square D 8536SBG2V02H30S NEMA starter for non-reversing three-phase motor control up to 18 A.

SQUARE Products

3G Electric supplies SQUARE electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
DIMPLEX Unit Heater: Phase 1/3/Volts 240/208, 19.5 in x 13 in x 13 in, 350 cfm Air Flow (MPN X-EUH05B34CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX
DIMPLEX Unit Heater: Phase 1/3/Volts 240/208, 19.5 in x 13 in x 13 in, 350 cfm Air Flow (MPN X-EUH05B34CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX Unit Heater: Phase 1/3/Volts 240/208, 19.5 in x 13 in x 13 in, 350 cfm Air Flow (MPN X-EUH03B34CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Volts 240/208; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX
DIMPLEX Unit Heater: Phase 1/3/Volts 240/208, 19.5 in x 13 in x 13 in, 350 cfm Air Flow (MPN X-EUH03B34CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Volts 240/208; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX Unit Heater: Phase 1/3/Volts 240/208, 19.5 in x 13 in x 13 in, 600 cfm Air Flow (MPN X-EUH10B34CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX
DIMPLEX Unit Heater: Phase 1/3/Volts 240/208, 19.5 in x 13 in x 13 in, 600 cfm Air Flow (MPN X-EUH10B34CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX Unit Heater: Phase 1/3/Volts 480, 19.5 in x 13 in x 13 in, 600 cfm Air Flow (MPN X-EUH08B74CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX
DIMPLEX Unit Heater: Phase 1/3/Volts 480, 19.5 in x 13 in x 13 in, 600 cfm Air Flow (MPN X-EUH08B74CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
TPI INDUSTRIAL Electric Unit Heater: 38.6 kW Watt Output, Gray, 480V AC, 3-Phase, 5,800 cfm Air Flow (MPN HLA28-480360-38.6-24TD). Key specifications — Voltage, Phase: 480V AC, 3-Phase; Brand: TPI INDUSTRIAL; Housing Color: Gray.
TPI INDUSTRIAL
TPI INDUSTRIAL Electric Unit Heater: 38.6 kW Watt Output, Gray, 480V AC, 3-Phase, 5,800 cfm Air Flow (MPN HLA28-480360-38.6-24TD). Key specifications — Voltage, Phase: 480V AC, 3-Phase; Brand: TPI INDUSTRIAL; Housing Color: Gray.
DIMPLEX Unit Heater: Phase 1/3/Volts 208, 19.5 in x 13 in x 13 in, 600 cfm Air Flow (MPN X-EUH08B24CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.
DIMPLEX
DIMPLEX Unit Heater: Phase 1/3/Volts 208, 19.5 in x 13 in x 13 in, 600 cfm Air Flow (MPN X-EUH08B24CT). Key specifications — Brand: DIMPLEX; Voltage, Phase: Phase 1/3; Overall Dimensions - H x W x D: 19.5 in x 13 in x 13 in.

More from SQUARE

View all SQUARE parts
SQUARE D Thermal Unit: 20 Trip Class, B6.90
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, B6.90
SQUARE D Thermal Unit: 20 Trip Class, B1.16
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, B1.16
SQUARE D Thermal Unit: 20 Trip Class, B8.20
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, B8.20
SQUARE D Thermal Unit: 20 Trip Class, CC59.4
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, CC59.4
SQUARE D Thermal Unit: 20 Trip Class, B1.67
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, B1.67
SQUARE D Thermal Unit: 20 Trip Class, A11.9
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, A11.9
SQUARE D Thermal Unit: 20 Trip Class, B17.5
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, B17.5
SQUARE D Thermal Unit: 20 Trip Class, B9.10
SQUARE
SQUARE D Thermal Unit: 20 Trip Class, B9.10