Thermal Overload Relay LR2-D Series

LR2-D Thermal Overload Relays

LR2-D relays plug directly onto CJX2 contactors and protect three-phase motors against sustained overload, phase failure and stalled rotors. The range spans 0.1 A to 93 A in four frames (D13, D23, D33, D43) with Class 10A tripping, ambient temperature compensation, manual or automatic reset and a normally open / normally closed auxiliary contact for alarm wiring.

Setting is by dial with a plus or minus 10 % adjustment band around the nominal current, so one relay covers a small family of motor ratings. Match the relay to the contactor and the motor full-load current, or send us the motor nameplate data and we will size it for you.

FAQ

Frequently Asked Questions

What products does Ningbo Doto Electric supply?

We manufacture and export a complete range of low voltage electrical products: AC contactors (CJX2 series), miniature circuit breakers, RCCB / RCBO residual current devices, thermal overload relays, current transformers, power capacitors, energy meters, counters, hour meters, fuse cutouts, limit switches and related accessories.

Do you support OEM and ODM service?

Yes. OEM is available on most product lines - we can print your brand, customize packaging and adjust specifications such as coil voltage, frequency and terminal type to your market requirements. Send us your requirement for a detailed OEM proposal.

Are your products certified?

Our products carry CE and RoHS certification, and the factory operates under an ISO 9001 quality system. Copies of certificates and routine test reports are available on request - see our Qualifications page for the full list.

How quickly will I get a quotation?

Every inquiry is answered within one working day (24 hours). To speed up the quotation, please include the model number, rated current / voltage and quantity - our engineers will confirm the specification and reply with price, MOQ and lead time.

Can I visit your factory?

You are welcome to visit us in Ningbo, Zhejiang, China. Our office and production base are open Monday to Saturday, 8:00-18:00 (GMT+8). Contact us in advance and we will arrange the schedule, factory tour and product demonstration.

Which markets do you export to?

We export worldwide, with key markets across Southeast Asia, South Asia, the Middle East, Africa, South America and Europe. Our team is experienced in export documentation, third-party inspection and multimodal shipping arrangements.

Ningbo Doto Electric Co., Ltd.

Professional manufacturer of AC contactors, circuit breakers, capacitors, hour meters and counters. Factory-direct, CE & ROHS certified, exporting worldwide.

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Contact

Tel. 0086-574-81859726
Mobile 0086-130-7191-2583
Email Nanna@doto-cn.com
No.99 Jinchuan Road, Jiaochuan Street, Zhenhai District, Ningbo, Zhejiang, China

Thermal Overload Relay