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G3ZA

Multi-channel power controller for smarter SSR usage

The G3ZA receives manipulated variables generated by control loops or manual settings via a simple-to-wire RS-485. It regulates the heater power with high precision by driving up to eight standard SSRs. Moreover, the offset control reduces peak power in the supply net.

Multi-channel power controller
Controls up to eight standard solid state relays
Easy integration with PLC
Compact size
Available with heater alarms (four channels) or without (eight channels)

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Specifications & ordering info

Ordering information

Name	Number of control channels	Heater alarm	Load power supply voltage	Order code
Multi-channel power controller	4	Supported	100 to 240 VAC	G3ZA-4H203-FLK-UTU
	4	Supported	400 to 480 VAC	G3ZA-4H403-FLK-UTU
	8	Not supported	100 to 240 VAC	G3ZA-8A203-FLK-UTU
	8	Not supported	400 to 480 VAC	G3ZA-8A403-FLK-UTU

Accessories

Name	Hole diameter	Order code
Current transformer (CT)	5.8 dia.	E54-CT1
Current transformer (CT)	12.0 dia.	E54-CT3

Specifications

Item	Load power supply voltage range
Item	100 to 240 VAC	400 to 480 VAC
Power supply voltage	100 to 240 VAC (50/60 Hz)
Operating voltage range	85 to 264 VAC
Power consumption	16 VA max.
Load power supply voltage	100 to 240 VAC	400 to 480 VAC
Load power supply voltage range	75 to 264 VAC	340 to 528 VAC
Manipulated variable input	0.0 to 100.0% (via RS-485 communications)
Current transformer input	Single-phase AC, 0 to 50 A (primary current of CT)
Trigger output	One voltage output for each channel, 12 VDC ±15%, max. load current: 21 mA (with built-in short-circuit protection circuit)
Alarm output	NPN open collector, one output Max. applicable voltage: 30 VDC Max. load current: 50 mA Residual voltage: 1.5 V max. Leakage current: 0.4 mA max.
Indications	LED indicators
Ambient operating temperature	-10 to 55°C (with no icing or condensation)
Ambient operating humidity	25 to 85%
Storage temperature	-25 to 65°C (with no icing or condensation)
Performance
Current indication accuracy	±3 A (for models with heater burnout detection)
Insulation resistance	100 MΩ min. (at 500 VDC) between primary and secondary
Dielectric strength	2,000 VAC, 50/60 Hz for 1 min between primary and secondary
Vibration resistance	Vibration frequency: 10 to 55 Hz, acceleration: 50 m/s 2 in X, Y, and Z directions
Shock resistance	300 m/s 2 three times each in six directions along three axes
Weight	Approx. 200 g (including terminal cover)
Degree of protection	IP20
Memory protection	EEPROM (non-volatile memory) (number of writes: 100,000)
Installation environment	Overvoltage category III, pollution degree 2 (according to IEC 60664-1)
Approved standards	UL508 (Listing), CSA22.2 No. 14 EN50178 EN61000-6-4 (EN55011: 1998, A1: 1999 Class A, Group 1) EN61000-6-2: 2001
Size in mm (H×W×D)	76×45×111

Optimum cycle control

Optimum cycle control is performed by driving SSRs according to load power detection and trigger signals. (Zero-cross SSRs are used.)

Noise is suppressed while ensure high-speed response by turning outputs ON and OFF each half cycle to achieve high-precision temperature control.

How can we help you?

If you have a question or would like to ask for a quote, please contact us or send a request.

+ 45 43 44 00 11

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