OWON PC321-Z ZigBee Single/3-Phase Power Clamp

ZigBee
OWON PC321-Z ZigBee Single/3-Phase Power Clamp
Short answer: The OWON PC321-Z is a ZigBee 3.0 power clamp for single-phase and three-phase systems. With three current transformers it measures real-time voltage, current, power factor, active power and total energy, keeps historical energy statistics and extends ZigBee network range.

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Key facts

TypeSingle / 3-phase clamp-on (CT) power meter with three CTs, wall bracket mounting
ConnectivityZigBee 3.0, 2.4 GHz IEEE 802.15.4; range outdoor / indoor 100 m / 30 m; internal antenna (default), external antenna optional; requires a ZigBee gateway
Supported systemsSingle-phase and three-phase
CT clampsThree CTs; 80 A (default, Ø10 mm), 120 A (Ø16 mm), 200 A (Ø20 mm) and 300 A (Ø24 mm) options
MeasurementIrms, Vrms, active power and energy, reactive power and energy; power factor
AccuracyWithin ±2 W up to 100 W; within ±2% above 100 W
Power supply100-240 Vac, 50/60 Hz; power consumption below 1 W
MountingWall mounting bracket; 86 (L) x 86 (W) x 37 (H) mm; 415 g

Features

Specifications

ZigBeeZigBee 2.4 GHz IEEE 802.15.4
ZigBee profileZigBee 3.0
RF characteristics
  • Operating frequency: 2.4 GHz
  • Range outdoor / indoor: 100 m / 30 m
  • Output power: up to +19 dBm
Antenna
  • Internal antenna (default)
  • External antenna (optional)
Operating voltage100-240 Vac, 50/60 Hz
Power consumptionBelow 1 W
Calibrated metering accuracy
  • Up to 100 W: within ±2 W
  • Above 100 W: within ±2%
Reporting cycle
  • Minimum: 10 s (power change ≥ 1%)
  • Maximum: 1 min (power change < 1%)
  • The threshold percentage can be set in the app
Data storage3 years on server
Clamp diameter
  • 80 A (default): 10 mm
  • 120 A (optional): 16 mm
  • 200 A (optional): 20 mm
  • 300 A (optional): 24 mm
Electrical parameters measuredIrms, Vrms, active power and energy, reactive power and energy
Works with gateway
  • SEG-X1: up to 20 pcs of PC321
  • SEG-X3: up to 10 pcs of PC321
  • Values are for reference only
Operating environment-20 °C to +55 °C; humidity ≤ 90% non-condensing; indoor use only
Dimensions86 (L) x 86 (W) x 37 (H) mm
Weight415 g

Applications

Notes

OWON smart energy meters can be supplied with Wi-Fi, Zigbee, 4G or LoRa communication. The meter models listed on this site are mainly Wi-Fi versions (Tuya-compliant or open API), plus the ZigBee PC311-Z-TY single-phase power clamp. If your project needs another Zigbee version, or a 4G or LoRa version, send your requirements to OWON sales.

PC321-Z FAQ

What is the PC321-Z?

The OWON PC321-Z is a ZigBee 3.0 power clamp for single-phase and three-phase systems. With three current transformers it measures real-time voltage, current, power factor, active power and total energy, keeps historical energy statistics and extends ZigBee network range.

How does the PC321-Z connect?

Connectivity: ZigBee 3.0, 2.4 GHz IEEE 802.15.4; range outdoor / indoor 100 m / 30 m; internal antenna (default), external antenna optional; requires a ZigBee gateway.

Which electrical systems does the PC321-Z support?

Supported systems: Single-phase and three-phase.

Which CT clamps does the PC321-Z use?

CT clamps: Three CTs; 80 A (default, Ø10 mm), 120 A (Ø16 mm), 200 A (Ø20 mm) and 300 A (Ø24 mm) options.

What is the measurement accuracy of the PC321-Z?

Accuracy: Within ±2 W up to 100 W; within ±2% above 100 W.

How is the PC321-Z powered?

Power supply: 100-240 Vac, 50/60 Hz; power consumption below 1 W.

How is the PC321-Z installed?

Mounting: Wall mounting bracket; 86 (L) x 86 (W) x 37 (H) mm; 415 g.

How can I get a quotation, samples or protocol documents for the PC321-Z?

Email sales@owon.com or message OWON on WhatsApp (+86 13159213403) with your application, country and quantity. OWON sales can send the datasheet, quotation and, where applicable, protocol documents.

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Guides

Solutions using this product

Protocols: ZigBee

Last updated: 6 November 2026. Source: OWON datasheet PC321-Z (20221128) and quick start guide (20240229).

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