STS Prepayment Meters

Delta Prima STS keypad prepayment meters — make metering smarter. DDZ1513 Class 1 single-phase smart prepayment (IP54, AMI-ready); single- and three-phase keypad range with TOU, split/integrated and Profile 2024 ratings.

STS Prepayment Meters

Delta Prima’s prepayment range helps utilities collect revenue upfront, reduce bad debt and routine meter reading, and protect assets — from campuses and malls to residential schemes.

STS 20-digit keypad token
IP54 Enclosure protection
Class 1 DDZ1513 accuracy
AMI PLC / RF ready options
STS keypad prepayment meter installed beside a distribution board
DDZ1513 Class 1 single-phase smart prepayment meter

DDZ1513 Single Phase Smart Prepayment

Multi-function Class 1 single-phase smart meter with an embedded communication module. Measures electrical energy accurately for commercial and residential customers, and can run as STS prepayment or post-payment — selectable by the utility.

Class 1 · STS
  • IP54
  • STS Compliance
  • Anti-Tamper
  • Smart Metering AMI
  • Time of Use

Revenue protection

Strong anti-tamper features — including terminal cover open detection — help utilities protect revenue and reduce loss at the service point.

Communication options

Optional PLC or cable link to a Customer Interface Unit (CIU), and PLC or RF toward a data concentrator for Smart Metering / AMI deployments.

Prepayment energy meter series

A broad keypad prepayment family — single and three phase, integrated and split, with flexible tariff and communication configurations.

Form factors

Single- and three-phase keypad meters; integrated and split keypad designs for indoor CIU or outdoor meter arrangements.

Payment modes

Energy-deduction and money-deduction modes so utilities can match credit logic to local commercial practice.

Tariff options

Multi-tariff Time-of-Use (TOU) metering and monthly step-tariff modes for structured residential and commercial pricing.

Communication

Cable, PLC and RF communication modes — including links to CIU and AMI data concentrators where specified.

Modular & certified options

Available configurations include DLMS-certified plug-in communication modules on single- and three-phase keypad prepayment meters.

Compliance configurations

Series options can include ANSI-oriented split keypad builds, common-base single-phase units aligned with ESKOM-style installation practice, three-phase keypad metering boxes, and single-phase keypad meters configured toward PLN D3 009:2010 requirements — specify the target market when requesting a quotation.

Single- and three-phase keypad options

Electrical ratings below follow Company Profile 2024. Choose the phase configuration that matches your deployment.

Single-phase STS keypad prepayment meter with numeric token keypad

Single Phase Keypad

Single-phase NCM prepayment meter with 20-digit STS keypad token entry. Suited to tenants, students and residential schemes — anti-tamper focused, with Profile 2024 electrical ratings.

Highlights

  • STS 20-digit keypad token
  • Neutral current measurement (NCM) for revenue protection
  • IP54 enclosure (IEC 60529)
  • 220 / 230 / 240 V service voltages
Voltage220 / 230 / 240 V
Current20(80)A or 10(100)A
ProtectionIP54 / IEC 60529
ComplianceSTS keypad · IEC 62053-21
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Three-phase modular smart meter for STS prepayment deployments

Three Phase Prepayment

Three-phase STS prepayment meter for malls, campuses and multi-tenant commercial loads. Class 1.0 / 2.0 accuracy with AMI readiness for RF, PLC and GPRS.

Highlights

  • STS prepayment for three-phase services
  • Active Class 1.0 / reactive Class 2.0
  • AMI-ready: RF, PLC & GPRS
  • Aligned with Company Profile 2024 ratings
Voltage3×230, 240 V / 415 V
Current10(100)A
AccuracyActive CL1.0 / Reactive CL2.0
AMIRF, PLC & GPRS ready
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Specify your configuration

Electrical ratings above follow Company Profile 2024. Market-specific builds (ANSI, ESKOM-style common base, PLN D3 009:2010, DLMS plug-in modules, metering boxes) are available as series configurations — tell us your utility standard and we will match the right option.

Ready to deploy STS prepayment?

Our team can help match the right keypad meter, tariff mode, and communication option to your utility standard and rollout plan.