Omron G70A-ZOC16-4 DC24 16-Point PNP Relay Terminal Block

Technical Overview

The Omron G70A-ZOC16-4 DC24 is a highly adaptable 16-point I/O terminal block designed for interfacing programmable logic controllers (PLCs) with field loads. Operating on a 24 VDC power supply with PNP (- common) polarity, it accepts a combination of G2R electromechanical relays, solid-state relays (SSRs), and timers to grant maximum system flexibility. It features high-capacity 10 A terminal sockets, built-in diodes for coil surge suppression, and an electric-shock preventive design. Integration is streamlined via a 20-position MIL connector for fast, snap-in PLC wiring, making it ideal for dense industrial control cabinets.

Key Features

16-pointoutputterminalblockforPNP(-common)units[1.3].
Accepts various devices including G2R relays, SSRs, and timers for scalable system integration.
Equipped with built-in diodes for effective coil surge suppression.
Features electric-shock preventive (finger-touch protection) terminal sockets.
High-capacity terminals capable of handling up to 10 A.
Snap-in MIL connector integration simplifies and accelerates PLC wiring.
Standard 35 mm DIN rail mountable for efficient panel space utilization.
Conforms to CE and VDE (VDE0160) safety standards.

Technical Specification Matrix

Parameter	Value
Product Type	I/O Relay Terminal Block
Number of Points	16 Points
Rated Voltage	24 VDC
Polarity	PNP (- Common)
Terminal Capacity	10 A max
Connector Type	MIL Connector (20 positions)
Surge Protection	Built-in Diodes
Mounting Method	35 mm DIN Rail

Industrial Applications

1. Automated Packaging Line Control

Serves as the high-capacity routing interface between a central PLC and downstream packaging actuators.

Problem Solved

Complex packaging machines require a reliable interface between low-current PLC outputs and heavy-duty actuators. The G70A-ZOC16-4 routes 16 discrete PNP outputs directly to 10 A capable relay terminals, allowing quick snap-in MIL connection while built-in diodes protect the sensitive PLC from coil surges.

PNP OutputMIL ConnectorCoil Surge Suppression10 A Switching

2. Machine Tool Safety and Galvanic Isolation

Provides vital electrical isolation and distribution for CNC and pressing machinery.

Problem Solved

High-power factory floor components generate noise and pose feedback risks to control electronics. By utilizing G2R or solid-state relays within this finger-safe (VDE0160) terminal socket, operators isolate the 24 VDC logic circuitry from heavy industrial loads, ensuring clean and noise-resistant switching.

Galvanic IsolationVDE0160Finger-Touch ProtectionNoise Resistance

3. HVAC and Building Automation Routing

Distributes 24 VDC control signals to various environmental subsystems within high-density panels.

Problem Solved

Facility management control cabinets often suffer from wiring congestion when managing disparate subsystems like dampers and fans. The DIN-rail mountable block densely packs 16 points of SPDT outputs into a small footprint, drastically simplifying wire management through its centralized PLC connector.

DIN Rail MountableHigh-Density I/OSPDT Relay AccommodationDistributed Switching