Fire & Electrical Safety Monitoring

GBL-JK Fire Monitoring Detector Family

Name: GBL-JK Fire Monitoring Detector Family
Brand: GBL

Series / Model · GBL-JK1 / GBL-JK3

Product overview

The GBL-JK family contains the confirmed GBL-JK1 and GBL-JK3 combined electrical fire monitoring detectors. GBL-JK3 works with residual-current transformers and temperature sensors; it is not itself a current transformer.

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GBL-JK Fire Monitoring Detector Family unified product presentation

Product systemFire & Electrical Safety Monitoring

Series / modelGBL-JK1 / GBL-JK3

CORE FEATURES

Core features

GBL-JK1: residual-current monitoring, alarm protection and RS485 communication

GBL-JK3: combined residual-current and temperature monitoring with CAN communication

Detectors, current transformers and temperature sensors are selected for the specific system design

SUBSERIES TECHNICAL DATA

Subseries technical data

Technical information is taken from the latest GBL-JK1 and GBL-JK3 manuals. Specifications are listed separately and are not extrapolated between models.

GBL-JK1 Combined Electrical Fire Monitoring Detector

Provides residual-current monitoring, alarm protection and RS485 communication with 35 mm DIN-rail mounting.

Main-circuit rated current16–1250 A

Power supplyAC 220 V / 50 Hz

Alarm setting range300–1000 mA, 1 mA minimum step

Display range50–1000 mA

Alarm outputDry contact, AC 250 V / 3 A

Dimensions72 × 88 × 63 mm

Operating environment-20°C to +60°C; RH ≤90% at 40±2°C; altitude ≤4500 m

GBL-JK3 Combined Electrical Fire Monitoring Detector

Connects to residual-current transformers and temperature sensors for combined monitoring, with data transmission over CAN.

Power supply / consumptionAC 220 V / 50 Hz; 5 W maximum

Monitoring channels8 residual-current transformer channels; 4 temperature-sensor channels

Alarm settingsResidual current 300–1000 mA; temperature 45–110°C; minimum step 1

Alarm outputDry contact, AC 220 V / 5 A maximum

Communication / accessoriesCAN; used with GBL-SQ1 current transformers and 10K3950 temperature sensors

Mounting35 mm DIN rail; approx. 126 × 90 × 50 mm as shown in the manual

StandardsGB 14287.2-2014 / GB 14287.3-2014

AVAILABLE SERIES

Available models / series

GBL-JK1GBL-JK3

APPLICATIONS

Applications

Residual-current and temperature monitoring in low-voltage distribution circuits

Field detection for electrical fire monitoring systems

TECHNICAL INFORMATION / DIMENSIONS

Technical references and dimensions

Drawings and data apply only to the exact model shown, not other specifications.

GBL-JK3 mounting dimensions and terminal reference

TECHNICAL DOCUMENTS

Technical Documents

Manuals, technical drawings, BIM files and other resources are published once approved.

GBL-JK Fire Monitoring Detector Family

GBL-JK1 Combined Electrical Fire Monitoring Detector Manual

Model: GBL-JK1

PDF · Official Product Manual · 0.9 MB

View Document

GBL-JK Fire Monitoring Detector Family

GBL-JK3 Combined Electrical Fire Monitoring Detector Manual

Model: GBL-JK3

PDF · Official Product Manual · 0.4 MB

View Document

GBL-JK Fire Monitoring Detector Family

Core features

GBL-JK1 Combined Electrical Fire Monitoring Detector

GBL-JK3 Combined Electrical Fire Monitoring Detector

Available models / series

Applications

Residual-current and temperature monitoring in low-voltage distribution circuits

Field detection for electrical fire monitoring systems

Technical Documents

GBL-JK1 Combined Electrical Fire Monitoring Detector Manual

GBL-JK3 Combined Electrical Fire Monitoring Detector Manual

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