Moxa

PT-G503 Series

IEC 61850-3/62439-3 3-port full Gigabit managed redundancy boxes

PT-G503 Series

Features and Benefits

  • IEC 61850-3, IEEE 1613 (power substations) compliant
  • IEC 62439-3 Clause 4 (PRP) and Clause 5 (HSR) compliant
  • PRP/HSR Coupling and QuadBox functions supported
  • Ethernet console reserved for local access
  • Built-in MMS server based on IEC 61850-90-4 switch data modeling for power SCADA
  • Hardware-based IEEE 1588v2 PTP supported
  • Design ready for NERC CIP compliant system development
  • Power inputs with universal 24 VDC, 48 VDC, or 110/220 VDC/VAC power supply range
  • -40 to 85°C operating temperature range

Certifications

  • Iec61850 3 Ieee1613 Black
  • En50121 4
  • CE
  • FCC

Introduction

The PT-G503-PHR-PTP Series redundancy boxes (RedBoxes) are compliant with the latest standardized redundancy protocols for industrial automation networks, IEC 62439-3 Clause 4 (Parallel Redundancy Protocol, PRP) and IEC 62439-3 Clause 5 (High-availability Seamless Redundancy, HSR). PRP/HSR ensures the highest system availability and data integrity for mission-critical applications in electrical substation and/or process automation systems that require zero recovery time redundancy. The redundant protocols Coupling and QuadBox are also supported. With Coupling and QuadBox, HSR rings can be connected to make the redundant network more versatile. The PT-G503-PHR-PTP Series comes with three 10/100/1000BaseT(X) and 100/1000BaseSFP slot combo ports. One slot (INTERLINK port) is for an internal link for connecting with a SAN (Singly Attached Node). The other two ports (LAN A and LAN B ports) are for PRP/HSR redundant protocol communications. With this full Gigabit Ethernet port design, the PT-G503-PHR-PTP Series provides high performance for PRP/HSR systems. The PT-G503-PHR-PTP Series also provides IEEE 1588v2 PTP in end-to-end one-step transparent clock mode for time-critical applications and power inputs with 24/48 VDC or 110/220 VDC/VAC ranges to increase the reliability of the power supply.

Models in this series (2)

PT-G503-PHR-PTP-WVPT-G503-PHR-PTP-HV
Max. No. of Ports33
Max. No. of Gigabit Ports33
Combo Ports 10/100/1000BaseT(X) or 100/1000BaseSFP33
Input Voltage24/48 VDC110/220 VDC/VAC
Operating Temp.-45 to 85°C-45 to 85°C
Add to Quote View Bag Buy from distributors (for USA only)Add to Quote View Bag Buy from distributors (for USA only)

Specifications

Shown for PT-G503-PHR-PTP-HV. Per-model differences are listed in the selection grid above.

Ethernet Interface

Combo Ports (10/100/1000BaseT(X) or 100/1000BaseSFP+)
3
Console Port
Ethernet console (10/100/1000Mbps RJ45)
Standards
IEEE 802.3 for 10BaseT IEEE 802.3ab for 1000BaseT(X) IEEE 802.3u for 100BaseT(X) and 100BaseFX IEEE 802.3z for 1000BaseSX/LX/LHX/ZX

Ethernet Software Features

Filter
Static Multicast
Management
Back Pressure Flow Control, BOOTP, DHCP Client, Fiber check, Flow control, HTTP, IPv4/IPv6, LLDP, Port Mirror, RARP, RMON, SMTP, SNMP Inform, SNMPv1/v2c/v3, Syslog, Telnet
Power Substation
MMS
Redundancy Protocols
HSR, PRP, RSTP grouping
Security
HTTPS/SSL, TACACS+, RADIUS, SSH, Trust access control
Time Management
NTP Server/Client, SNTP, IEEE 1588v2 PTP (hardware-based)
MIB
IEC 62439-3 MIB

USB Interface

Storage Port
USB Type A

Serial Interface

Console Port
USB-serial console (Type B connector)

Input/Output Interface

Alarm Contact Channels
Resistive load: 1 A @ 24 VDC
Digital Inputs
+13 to +30 V for state 1 -30 to +3 V for state 0 Max. input current: 8 mA

Power Parameters

Input Current
0.260/0.170 A @ 110/220 VAC 0.150/0.080 A @ 110/220 VDC
Input Voltage
110/220 VAC/VDC (85 to 264 VAC, 88 to 300 VDC)
Power Connector
1 removable 5-contact terminal block(s)
Overload Current Protection
Supported
Reverse Polarity Protection
Supported

Physical Characteristics

Housing
Aluminum
IP Rating
IP40
Dimensions (without ears)
80 x 160 x 110 mm (3.15 x 6.30 x 4.33 in)
Weight
1210 g (2.69 lb)
Installation
DIN-rail mounting

Environmental Limits

Operating Temperature
-40 to 85°C (-40 to 185°F)
Storage Temperature (package included)
-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity
5 to 95% (non-condensing)

Standards and Certifications

Safety
UL 508
EMI
EN 55032 Class A, CISPR 32, FCC Part 15B Class A
EMS
IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 35 V/m IEC 61000-4-4 EFT: Power: 4 kV; Signal: 4 kV IEC 61000-4-5 Surge: Power: 4 kV; Signal: 4 kV IEC 61000-4-6 CS: 10 V IEC 61000-4-8 PFMF IEC 61000-4-11 DIPs
Power Substation
IEC 61850-3, IEEE 1613
Railway
EN 50121-4

MTBF

Time
566,844 hrs
Standards
Telcordia (Bellcore) Standard TR/SR

Warranty

Warranty Period
5 years
Details
See www.moxa.com/warranty

Resources

NameTypeVersionDate
Software Package for MXview One Series (Linux version)552.6 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Software Package for MXview One Series (Windows version)249.1 MBSoftware Packagev1.7.2May 08, 2026 May 08, 2026 Release notes
Firmware for PT-G503 Series6.2 MBFirmwarev5.3Sep 28, 2023 Sep 28, 2023 Release notes
SNMP MIB file for PT-G503 Series88.2 KBSoftware Packagev5.2Aug 02, 2022 Aug 02, 2022 Release notes
Software Package for PT-G503 Series (MMS ICD file)29.5 KBSoftware Packagev1.0Jan 28, 2019 Jan 28, 2019 Release notes
Moxa USB Console Windows Driver1.2 MBDriverv1.7.1Dec 10, 2013 Dec 10, 2013 Release notes
Datasheet for PT-G503 Series923.8 KBDatasheetv1.3Mar 31, 2026
QIG for PT-G503 Series1.9 MBQIGv2.4Jun 25, 2025
FOSS Statement for PT Series298.6 KBDeclarationv1.0Jul 29, 2024
Declaration of Conformity for PT-G503 Series309.3 KBDeclarationv1.0May 02, 2024
Manual for PT-G503 Series2.4 MBManualv1.1Aug 02, 2022
Tech Note: Recommended Procedure for STP Cable Grounding on Moxa's Industrial Ethernet Switches558.3 KBTech Notev1.0Feb 12, 2019
2D CAD for PT-G503-PTP73.7 KB2D CADJan 19, 2018

Need pricing on the PT-G503 Series?

Tell us quantities and we'll come back with a quote.

Get a Quote