Surge Protection Devices (SPD)
Surge Protection Devices limit transient overvoltages through a device selected for the electrical system and installation point.
Product-type reference. The supplied make and configuration are confirmed in your quotation.
Surge protection devices for specified electrical systems
Tirupati Power Enterprises sources SPDs for industrial panels and project requirements. Send the AC or DC system details, installation point and protection schedule so the quotation identifies the required device and accessories.
An SPD is selected around the system and coordinated protection design. Type, continuous operating voltage, protection level and discharge parameters describe different characteristics. A socket-strip surge protector and a panel-mounted SPD should not be treated as the same buying requirement.
Related variants to specify
These descriptions share this buying page. Name the exact variant, manufacturer and reference in your enquiry; they are not automatically interchangeable.
- Surge Protection Devices (SPD)
- (SPD) surge protection devices
Information to include in your RFQ
Selection requirements for this product type |
|---|
AC or PV DC application and system earthing |
Type/class, Uc and protection level |
Discharge/impulse duty and backup protection |
Pole arrangement, status and remote indication |
Replacement and quotation checks
For a replacement, send the existing surge protection devices (SPD) reference and photographs of its markings, connections and mounting. Include the equipment drawing or datasheet where available. Identify which functions must remain unchanged and whether an alternative make is acceptable.
Related products and buying guidance
Browse switchgear requirements
Miniature Circuit Breakers (MCB)
Moulded Case Circuit Breakers (MCCB)
Request a line-by-line quotation
Sources and further reading
Schneider Electric low-voltage products
SPD system and coordination schedule
Buying detail | Include in your RFQ | Confirmation to request |
|---|---|---|
System | AC/DC voltage, phase/poles and earthing arrangement | Confirm the device is intended for that system |
Installation point | Service entrance, distribution or equipment location | Use the specified SPD type and coordination design |
Voltage parameters | Required continuous operating voltage and protection level | Read the actual series datasheet |
Discharge duty | Specified impulse/nominal/maximum discharge parameters | Compare the same test parameter and waveform |
Protection interface | Backup fuse/breaker and available fault duty | Follow the manufacturer’s coordination requirements |
Accessories | Replaceable modules, status contact and mounting details | Confirm included modules and signalling scope |
Compare prices for the same supply scope
Surge protection device prices vary with system, type, pole arrangement, discharge duty, module design and signalling. Compare complete devices on the same parameter basis; a spare cartridge alone is a different offer. AC and PV/DC devices need separate specification. Identify backup protection and accessories so the quoted device can be reviewed within the complete protection arrangement.
Send a complete requirement for quotation
Share the approved surge-protection schedule or exact device reference.
- System voltage, AC/DC, earthing arrangement and installation point.
- Required SPD type and voltage/discharge parameters.
- Backup protection, mounting and remote indication needs.
- Quantity, spare modules, approved makes and delivery location.
Checks before you approve the order
System suitability
Confirm AC/DC and voltage parameters before substitution.
Coordinated arrangement
Check upstream/downstream protection and installation requirements.
Parameter clarity
Compare like-for-like discharge ratings and complete module scope.
Buying guidance and technical reference
Related buying ranges and detailed guidance
Miniature Circuit Breakers (MCB)
Moulded Case Circuit Breakers (MCCB)
Solar DCDB & ACDB Distribution Boxes
LT Panel Specification Checklist
Manufacturer technical reference
Schneider Electric: SPD types, coordination and disconnecting devices
Questions about Surge Protection Devices (SPD)
What should I check before selecting surge protection devices (SPD)?
An AC SPD is not automatically suitable for PV DC. Coordination, connecting-lead routing and backup protection are part of the installation design.
What information is needed to quote surge protection devices (SPD)?
Provide aC or PV DC application and system earthing; type/class, Uc and protection level; discharge/impulse duty and backup protection; pole arrangement, status and remote indication. Include the quantity, requested make or existing reference and delivery PIN code.
Is an SPD selected only by its kA figure?
No. The system, SPD type, voltage parameters, protection level and discharge test definitions also matter. Compare the same datasheet parameters within the approved protection design.
Can an AC SPD be used in a solar DC circuit?
Use a device specifically selected and documented for the actual DC system. AC and DC voltage markings and operating requirements are not interchangeable.
Does an SPD replace an MCB or fuse?
No. The surge-protection arrangement needs its specified disconnection and backup protection. Follow the device manufacturer’s coordination instructions.
Is an SPD replacement cartridge the same as a complete device?
No. A cartridge requires a compatible base and system. State whether the order is for a complete assembly, replacement module or spare set.
What should I send for an SPD price from TPE?
Include the system details, installation point, type, voltage/discharge parameters, signalling, quantity and any existing reference. Our team will identify the proposed model and supply scope.
Need this for your application?
Send the specification, quantity and delivery PIN code. Our Kolkata team quotes supply across India, including eastern India, with availability and freight confirmed for your order.