An HVAC installer in Delhi needed reliable overload protection for a 15A compressor, arriving factory-sealed from USA in 10 days.
Installed DPER21 relay, preventing overload damage, saving ₹10,000 in repairs, with smooth operation over 12 months.
You save 2,900 (31%)
Estimated doorstep delivery by 20 Nov - 22 Nov from USA






Reliable Motor Protection at Competitive Price
Square D Schneider Electric DPER21 is a thermal overload relay designed for HVAC, pumps, and compressors, supporting 12-18A current and 690V voltage. It offers phase failure detection, manual/automatic reset, and simulation testing. Its compact, modular design ensures easy installation on DIN rails or screw fixing, suitable for space-constrained industrial applications. Certified IEC, cUL, and Green Premium compliant, it connects directly to Schneider Electric contactors and starter series, providing reliable motor protection against overloads, phase failures, and unbalances. Its differential device with fault signaling enhances operational safety, making it an essential component for HVAC and industrial motor control systems.
Built with durable plastic, it withstands dust and environmental elements, ensuring long-term performance. The relay's thermal adjustment dial and fault indicator facilitate easy setup and monitoring. Compatible with Schneider Electric's contactors DPE25G7, DP25BL, DPE25U7, DPE25B7, and the GP2E series, it is ideal for HVAC, agriculture, and industrial machinery. Its differential device with phase failure detection helps prevent motor damage, supporting efficient and safe operation in Indian and global markets. Arrives factory-sealed, with all duties paid, in 11-13 days.
Advanced Thermal & Fault Detection
The DPER21 relay features precise thermal adjustment and phase failure detection, protecting motors from overloads and unbalanced loads. Its differential fault signaling enhances safety, making it a reliable choice for HVAC and industrial applications.
Ideal for Space-Constrained & Critical Systems
Designed for compact spaces, the relay connects directly to Schneider Electric contactors, supporting efficient motor protection in HVAC, agriculture, and manufacturing. Suitable for Indian climate and electrical standards, it arrives factory-sealed with all duties paid.
Typical situations where Square D by Schneider Electric DPER21 Thermal Overload Relay 12-18A | HVAC & Motor Protection helps — illustrative scenarios, not customer reviews.
An HVAC installer in Delhi needed reliable overload protection for a 15A compressor, arriving factory-sealed from USA in 10 days.
Installed DPER21 relay, preventing overload damage, saving ₹10,000 in repairs, with smooth operation over 12 months.
A pump operator in Mumbai faced frequent phase failures causing shutdowns, with local relays unreliable.
Used Schneider DPER21 with phase failure detection, reducing downtime, arriving in 8 days, with factory warranty.
| Trip Class | 10 |
| Protection Type | Thermal Overload |
| Standards | IEC, cUL, RoHs |
| Recommended Use | Protection of 3-phase motors in HVAC, pumps, compressors |
| Reapplication | Manual or automatic reset, supports simulation testing |
| Shelf Life | Factory-sealed, check manufacturer's date |
| Cost per use | ₹6,560 per unit |
| Compatibility | Connects with Schneider Electric contactors DPE25G7, DP25BL, DPE25U7, DPE25B7 |
| Feature | Square D by | Others |
|---|---|---|
| Current Rating | Supports 12-18A, 690V, with precise thermal setting | Typically supports 10-15A, 400V, with manual adjustment |
| Standards & Certification | IEC, cUL, RoHs, Reach certified, Green Premium | Indian standards, IEC certified, RoHs compliant |
| Installation & Compatibility | DIN rail or screw mounting, connects directly to Schneider contactors | Screw mounting, compatible with local contactors |
| Protection Features | Phase failure detection, manual/auto reset, fault signaling | Overload protection, manual reset, basic fault indicator |
| Price & Delivery | ₹9,460 (MRP), arrives in 11-13 days, duties included | ₹3000-₹4000, 2-3 weeks, local taxes extra |
| SKU | qvs7505 |
| GTIN | 3606485332451 |
| Brand | Square D by Schneider Electric |
| Size | 12-18A |
| Voltage | 690V |
| Material | Plastic |
| Color | Multicolor |
About Square D by Schneider Electric
Schneider Electric is a global leader in electrical control and automation solutions, trusted for quality and innovation in industrial products.
Compliance & Legal
This is a regulatory-compliant industrial relay, suitable for HVAC, pumps, compressors. No medical or safety claims.
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This item:
Square D by Schneider Electric DPER21 Thermal Overload Relay 12-18A | HVAC & Motor Protection
6,560

This item
Square D by Schneider Electric DPER21 Thermal Overload Relay 12-18A | HVAC & Motor Protection
6,560
Total price:
13,730
You save 6,940 (34%) Extra3 items selected
3 items
13,730You save 6,940 (34%) Extra
| Attributes | Current ![]() | ![]() | ![]() | ![]() | ![]() | ![]() | |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 6,560 9,460 | 5,090 5,590 | 2,080 5,620 | 7,190 9,860 | 40,220 42,240 | 5,140 6,820 | 5,780 9,670 |
| Brand Name | Square D by Schneider Electric | Square D by Schneider Electric | Schneider Electric | US Breaker Inc USA | SIEMENS | Apera Instruments | SOURCE ONE |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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