Vasundhara Performance Solutions is the authorised Hyderabad supplier for Citel Type 3 SPDs — final-line surge protective devices for sensitive electronics (PLCs, servers, medical equipment, instrument loops) installed within 10 metres of the protected load. Per IEC 61643-11 Type 3 specification. Voltage protection level Up ≤ 1.0 kV brings residual surge voltage below the impulse withstand of sensitive equipment per IEC 61131-2 + IEC 60601. The third tier of a coordinated Type 1 / Type 2 / Type 3 cascade. Pan-India dispatch from Secunderabad warehouse.
Request Citel Type 3 SPD Quote Call: +91-9912825442Complete Citel Type 3 portfolio — DIN-rail mount + panel-mount + plug-strip variants for the full range of sensitive-equipment final-line protection.
DIN-rail mount Type 3 SPD for cabinet installation close to sensitive loads. In 5 kA / Up ≤ 1.0 kV per IEC 61643-11. For installation within 10 m of PLC cabinets, server racks, medical equipment, instrument panels. Single-pole + multi-pole variants for L-N + L-PE + N-PE protection.
Plug-strip Type 3 SPD for direct insertion at equipment power point. Schuko / IEC 60320 outlet variants for plug-in protection of PCs, servers, lab equipment, medical devices. Visible status indicator + audible alarm option for end-of-life detection.
Specialty Type 1+2+3 combination SPD for installations where single-cabinet protection is required without separate stages. Combines lightning + switching + sensitive-equipment protection in one device. Used in smaller installations + retrofit + mobile equipment.
Type 3 SPD for data + signal lines reaching sensitive equipment — RJ45 ethernet, RS-485 serial, 4-20 mA instrument loops, RJ11 telephone. Pairs with power-line Type 3 SPD for complete equipment protection on both power + signal entries.
Type 3 SPD for solar PV final-line protection — DC-side SPD at the inverter for residual surge protection. Pairs with PV-side Type 1+2 (combined) and AC-side Type 2. Pan-India solar installations + rooftop PV systems.
All Citel Type 3 SPDs include thermal-disconnect indicators (window or remote contact) for end-of-life detection. Replacement modules available for cartridge-format SPDs (no rewiring needed). See Citel Replacement Modules page.
Standard property values across the range. TDS / MSDS / per-batch COA available on enquiry.
| Property | Test Method | DAS DIN-Rail | DLU Plug-Strip | DLA Data-Line |
|---|---|---|---|---|
| Type (IEC 61643) | — | Type 3 | Type 3 | Type 3 (signal) |
| Iimp / In (kA) | 10/350 / 8/20 | 5 kA In | 5 kA In | 1-5 kA In |
| Up — Voltage Protection Level (kV) | — | ≤ 1.0 kV | ≤ 1.0 kV | ≤ 1.5 kV |
| Uc — Continuous Operating Voltage (V) | — | 275-320 V | 275 V | Per signal |
| Response Time (ns) | — | ≤ 25 ns | ≤ 25 ns | ≤ 1 ns |
| Operating Temperature (°C) | — | -40 to +85 | -40 to +85 | -40 to +85 |
| Mounting Format | — | DIN 35 mm rail | Plug-strip / inline | DIN rail / inline |
| Status Indicator | — | Window + remote | Window + alarm | Window |
| Replacement Module | — | Cartridge | Plug-in | Per type |
Standards compliance: IEC 61643-11 Type 3 SPD specification · IS 17131 Indian Standard for SPDs · IEC 61131-2 Cat II PLC impulse withstand · IEC 60601 medical electrical equipment · CE marked + RoHS compliant
Where Citel Type 3 SPDs ship from our Hyderabad warehouse — final-line protection close to sensitive equipment.
Citel DAS DIN-rail Type 3 SPD installed inside PLC cabinets for final-line protection of CPU + I/O modules + HMI panels. Reduces residual surge from upstream Type 1+2 to ≤ 1.0 kV — well below PLC IEC 61131-2 Cat II 1.5 kV impulse withstand. Auto-ancillary + process-plant + manufacturing PLC installations.
Citel DLU plug-strip Type 3 SPD at server rack power-distribution unit (PDU) for final protection of servers + network switches + storage. Pan-India IT installations + data-centre rack-level protection + corporate server rooms.
Citel DAS + DLU Type 3 SPDs for hospital critical-care equipment — ventilators, dialysis machines, imaging equipment, ICU monitors. IEC 60601 impulse withstand is 0.5-1.0 kV — Type 3 SPD is mandatory for adequate protection. Hospital MEP installations.
Citel DLA data-line Type 3 SPD on 4-20 mA instrument loops + RS-485 serial communications reaching DCS + PLC + smart instruments in process plants. Refinery + chemical + pharma instrumentation protection.
Citel DLU Solar PV Type 3 SPD at inverter AC side for final-line protection + DC-side for inverter DC input. Pan-India rooftop solar + utility-scale PV installations. Pairs with Type 1+2 PV-side combination SPDs.
Citel DAS DIN-rail Type 3 for building management system (BMS) cabinets — fire alarm panels, access control, CCTV recorder enclosures. Final protection close to the sensitive controller. Commercial + hospital + IT building MEP installations.
Type 3 is the third tier of coordinated surge protection — close to the load, low Up, protecting equipment beyond the reach of Type 1+2 alone. Citel's engineered Type 3 range delivers IEC 61643 compliance at competitive pricing.
Genuine Citel France product through Citel India's official distribution channel. Manufacturer authorisation documentation provided on enquiry. Cartridge-traceability from manufacturer to installation site — critical for warranty claims after lightning events.
Stocked SKUs ship same-day from Secunderabad warehouse. Less-common configurations typically 5-7 working days from Citel India stock or factory dispatch. Replacement cartridges stocked for service contracts.
Free SPD coordination calculations for projects where Vasundhara is the supply partner — Type 1 / Type 2 / Type 3 cascade design per IEC 61643-12, distance-rule verification, energy coordination check, fuse / MCB selection for SPD upstream protection.
GeM-registered seller. Citel SPDs available under standing rate contract for PSU buyers. Project-pricing on bulk orders (50+ poles) for OEM panel-builders, EPC contractors, solar EPCs.
One PO for Citel Type 3 SPD + companion SPDs (Type 1, 2, 3) + downstream isolators + earthing accessories. Reduces vendor count for panel-builders sourcing the complete LV protection kit. See our Citel brand page.
Per-shipment test certificates (CE, IEC 61643-11 / IEC 61643-21 type-test), factory test reports, manufacturer authorisation letters from Citel France. Suitable for IEC 60364 / IS 732 panel-builder audits, MEP consultant submittals, EPC project documentation.
Standard packaging across the range. Bulk pricing on volumes >1,000 L.
| Pack Format | Volume | Typical Use Case |
|---|---|---|
| Pail (HDPE) | 20 L | Single-machine top-up, sample-and-trial orders |
| Drum | 50 L | Mid-duty maintenance stock |
| Barrel (steel) | 210 L | Plant maintenance stores standard |
| IBC Tote | 1000 L (1 MT) | Bulk supply for high-volume users |
| Bulk Tanker | 3,000-5,000 L+ | Direct-to-tank delivery, large plants |
Visit Our Office: H.No. 10-2-309, Flat No. 201, Sudha Vaishnavi Residency, Street No. 4, West Marredpally, Secunderabad, Telangana 500026 | View on Google Maps
Common questions from MEP + process-instrumentation + IT-cabinet installation buyers sourcing Citel Type 3 SPDs through Vasundhara.
Type 1 SPD at the building incomer reduces direct lightning + close-strike surge to ~2.5 kV. Type 2 at sub-distribution further reduces to ~1.5 kV. But PLCs (1.5 kV impulse withstand), servers (1.0 kV), and medical equipment (0.5-1.0 kV per IEC 60601) need residual voltage ≤ 1.0 kV at the protected load. Type 3 SPD installed within 10 metres of the sensitive equipment achieves this final reduction. Without Type 3, even properly-installed Type 1+2 may not adequately protect modern sensitive electronics.
Type 3 SPD must be installed within 10 metres of the protected equipment — closer is better. Typical installations: (1) inside the equipment cabinet itself (PLC cabinet, server rack PDU); (2) on the wall adjacent to the equipment; (3) as a plug-strip directly at the equipment power point. Long cabling between Type 3 SPD and equipment defeats the purpose — inductive voltage drop on the cable adds residual surge that Type 3 was meant to prevent.
Type 3 SPDs are sized by In (nominal discharge current, 8/20 µs) and Up (voltage protection level): (1) In ≥ 5 kA for most installations (sufficient since Type 1+2 upstream have already absorbed most of the surge energy); (2) Up ≤ 1.0 kV for PLC + server + IT equipment; Up ≤ 0.6 kV for IEC 60601 medical equipment. Standard Citel Type 3 SPDs deliver In 5 kA + Up ≤ 1.0 kV — covers 90% of installations.
DAS — DIN-rail mount Type 3 for installation inside electrical cabinets (PLC cabinets, sub-distribution boards). DLU — plug-strip Type 3 for direct insertion at equipment power point (server rack PDU, lab equipment, medical devices). DLA — Type 3 for data + signal lines (Ethernet, RS-485, 4-20 mA instrument loops). Most installations need both DAS (power-line) and DLA (data-line) for complete protection of equipment with both power + signal entries.
All Citel Type 3 SPDs include thermal-disconnect status indicators (window or remote contact) for end-of-life detection. Visual check after every lightning event in the area + monthly during routine inspections. Annual functional testing per IEC 61643-12 — measure leakage current, check Uc, verify status indicator. Replace SPDs immediately when indicator shows end-of-life — operated SPDs no longer protect. Typical service life: 5-15 years depending on local lightning activity + surge frequency.
DIN-rail Type 3 SPD (DAS series) installation requires a licensed electrician — wiring into the distribution board, proper grounding, lead-length compliance, isolation switches. Plug-strip Type 3 SPD (DLU series) for plug-in equipment can be self-installed by competent IT/maintenance staff — simply plug equipment into the SPD outlet, plug SPD into the wall. For data-line SPDs (DLA), follow OEM wiring diagrams + ensure proper grounding.
Yes. Standard Citel Type 3 SPD variants: 220-275 V Uc for single-phase 230 V systems; 320-440 V Uc for three-phase 415 V systems. Plus 24 V DC + 48 V DC variants for telecom equipment + railway signal applications. Pan-India dispatch from our Secunderabad warehouse. Bulk pricing on volumes >100 SPDs for project supply.
Yes. Vasundhara Performance Solutions Pvt Ltd is the authorised Citel Surge Protection distributor for Hyderabad, Telangana, Andhra Pradesh, Karnataka and South India. Full manufacturer authorisation documentation provided on enquiry. See our Citel brand page for the complete portfolio.
Complete Citel SPD portfolio supplied by Vasundhara — coordinated Type 1 + 2 + 3 cascade for full equipment protection.
Tell us your installation (PLC cabinet / server rack / medical equipment / instrument loop / solar inverter), equipment IEC 61131-2 / IEC 60601 impulse withstand rating, and quantity needed. We'll respond with rate-contract pricing + installation guidance within one business day. Call +91-9912825442 or email [email protected] for same-day response.
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