Berson Replacement UV Lamp, 42/S, 843 mm × Ø15 mm, 4-Pin
Pricing
Request a quote
We reply within 24 hours
Product Description
A UV lamp is a scheduled replacement, not a failure item. Its UV-C output falls steadily through life while the lamp continues to light normally, so a reactor with visibly working lamps can be well below its dosing duty. Replacement is made on elapsed operating hours against the measured intensity trend, not on the lamp going out. Order against the reactor model, and handle the new lamp by its ends only — skin oils fired onto the envelope at operating temperature devitrify the quartz and cost output permanently. This lamp is 843 mm long, 15 mm in diameter, and fitted with a 4-pin base. The same envelope and base are used across the Berson 42/S, B42V and 80VIK positions, so dimensions alone do not identify the lamp — order against the reactor model.
Technical Specifications
- Component type
- UV lamp
- Length
- 843 mm
- Diameter
- 15 mm
- Lamp base
- 4-pin
- Fits
- Berson 42/S
- HS code
- 8539.49
Standards & Compliance
- Material
- Quartz glass envelope, amalgam
- Temperature Range
- Operating: 40°C bulb wall typical
- HS Code
- 8539.49
Cross References
- Article 10125-0309
Compatibility & Fitment
Part is for listed systems. For other UV systems, provide serial number to confirm compatibility.
Product Documentation
More from Berson
Berson
Berson Replacement UV Lamp, 65VIK
10277-1117
Berson
Berson 80VIK Replacement UV Lamp
1001-0804
Berson
Berson Replacement UV Lamp, B1220H
10991-1207
Berson
Berson B2000 Replacement UV Lamp
1009-0104
Berson
Berson Replacement UV Lamp, B2020H
10263-0816
Berson
Berson Replacement UV Lamp, B2020MW-HF
10258-1215
Berson
Berson Replacement UV Lamp, B2035
1042-1005
Berson
Berson Replacement UV Lamp, B2500
1066-0806
Technical guides
Catalogue entry last verified: 2026-10-02. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 10125-0309?
- 10125-0309 can be ordered from cballast.com as a Berson catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Berson product?
- The manufacturer part number is 10125-0309.
- What is the HS code for 10125-0309?
- The customs tariff (HS) code for 10125-0309 is 8539.49.
- Who manufactures 10125-0309?
- 10125-0309 is a Berson product in the Electrochlorination & Water Treatment range.
- Is a datasheet available for 10125-0309?
- Yes — the 10125-0309 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 10125-0309?
- The minimum order quantity is 1.
- Is 10125-0309 available?
- Yes — 10125-0309 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).