G3PF

Category Tag

Heater Burnout Detection

 

• Built-in Current Transformer (CT) helps reduce wiring steps.

• Detects the burnout of any one of a group of heaters.

• Detects the burnout of 3-phase heaters.

• Detects SSR short-circuit failures.

• Error detection level can be easily set with a switch.

• Mounts to a DIN track or with screws.

• Three types of input terminals available: M3 terminals, screwless clamp terminals (detachable), or compact slotted screw terminals (detachable).

• Certified for CSA and EN (TÜV).

• The G3PF-2[][]B-[][][] Series is UL certified.

Certification

CSA (File No.LR35535), TÜV (File No.R50124941, EN60947-4-3)
UL (File No.E64562) (G3PF-2[][]B-([][][]) Series)

Ratings

Detection Power Supply

 

Rated power supply voltage 24 VDC
Operating voltage range 20.4 to 26.4 VDC
Current consumption 50 mA DC max. (at 24 VDC)

 

Alarm Output

 

Output OFF collector voltage 30 VDC max.
Maximum carry current 100 mA
Output form NPN open collector (ON when error is detected.)
Minimum load current 0.1 mA

 

Operation Input

 

Input method Voltage input
Rated input voltage 12 to 24 VDC
Operating input voltage range 9.6 to 26.4 VDC
Operate voltage 9.6 VDC max.
Release voltage 1.0 VDC min.
Input current 5 mA DC max. (at 12 VDC)
10 mA DC max. (at 24 VDC)

 

 

Note: If the power rise or fall time exceeds 200 ms for the detection power supply or operating input power supply, an
alarm display or output may be activated by the failure detection function before the rated voltage is exceeded.
Select a DC power supply that has a power rise or fall time of 200 ms or less.

 

Main Circuit

 

Model G3PF-225B G3PF-235B G3PF-525B G3PF-535B
G3PF-225B-CTB G3PF-235B-CTB G3PF-525B-CTB G3PF-535B-CTB
G3PF-225B-STB G3PF-235B-STB G3PF-525B-STB G3PF-535B-STB
Rated load voltage 100 to 240 VAC (50/60 Hz) 200 to 480 VAC (50/60 Hz)
Operating voltage range 75 to 264 VAC, 50/60 Hz 180 to 528 VAC, 50/60 Hz
Applicable load current * 25 A (at 40°C) 35 A (at 40°C) 25 A (at 40°C) 35 A (at 40°C)
Minimum load current 2 A
Inrush current resistance 220 A
(60 Hz, 1 cycle)
430 A
(60 Hz, 1 cycle)
220 A
(60 Hz, 1 cycle)
430 A
(60 Hz, 1 cycle)
Permissible I2t (reference value) 1,030A2s 1,030A2s 1,030A2s 1,030A2s

 

 

Note: The load current depends on the ambient temperature. Refer to Load Current vs. Ambient Temperature under
Engineering Data for details.

 

Characteristics

 

Model G3PF-225B G3PF-235B G3PF-525B G3PF-535B
G3PF-225B-CTB G3PF-235B-CTB G3PF-525B-CTB G3PF-535B-CTB
G3PF-225B-STB G3PF-235B-STB G3PF-525B-STB G3PF-535B-STB
Operate time 1/2 of load power source cycle + 1 ms max.
Release time 1/2 of load power source cycle + 1 ms max.
Main circuit Output ON voltage drop 1.6 V (RMS) max. 1.8 V (RMS) max.
Leakage current 10 mA max. (at 200 VAC) 20 mA max. (at 480 VAC)
Alarm output Output ON voltage drop 1.5 V max.
Leakage current 1 mA max.
Isolation resistance 100 MΩ min. (at 500 VDC)
Dielectric strength 2,500 VAC, 50/60 Hz for 1 min.
Vibration resistance Destruction: 10 to 55 to10 Hz, 0.35-mm single amplitude (0.7-mm double amplitude)
Shock resistance Destruction: 294 m/s2
Ambient storage temperature -30 to 70°C (with no icing or condensation)
Ambient operating temperature -20 to 60°C (with no icing or condensation)
Ambient operating humidity 45% to 85%
Weight Approx. 400 g Approx. 630 g Approx. 400 g Approx. 630 g