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Voltage and current relays

With the INT69 UY Diagnose device family, KRIWAN offers reliable and user-friendly solutions for protecting and monitoring high-precision and sensitive electrical components, drives and electrical loads. The causes of malfunctions and resulting damage to electrical equipment are often due to
increased current consumption, incorrect phase sequence or a deviating supply voltage. The new generation of KRIWAN INT69 UY Diagnose voltage monitoring relay ensure trouble-free and safe operation of the plant, are fully networkable and thus provide valuable data for condition monitoring.

The KRIWAN INT89 I Diagnose current sensing relay is used in combination with the KRIWAN INT185 current transformer for current monitoring. Fast-response current monitoring increases the availability and service life of a machine.

To the brochure

State-of-the-art voltage monitors and current relays

Setting standards in terms of quality and reliability

In modern industry, monitoring electrical voltage is of crucial importance. Our voltage monitoring relays provide precise monitoring and protect your facilities from unexpected voltage fluctuations. KRIWAN relies on innovative technologies to ensure the highest safety standards. Our voltage monitor and current relay switch contribute to optimizing energy consumption while simultaneously minimizing environmental impacts.

Voltage monitoring with the INT69 UY Diagnose

With screw mounting or as a variant for installation in the control cabinet
Can be used worldwide with corresponding approvals
Can be networked into higher-level systems and controllers, also for remote monitoring
The device family covers a wide range of applications

Voltage relay Basic

The efficient solution for small, cost-critical plants

Monitoring of single-phase or three-phase networks
Compact housing for screw mounting
Flat plug
Temperature: PTC
Fixed monitoring range

Voltage relay all-in-one

Flexible use in large-scale plants, in high-precision and sensitive applications

Monitoring of single-phase and three-phase networks
Control cabinet mounting on top-hat rail
Push-in terminals, quick and easy wiring
Temperature: PTC or PT1000
Neutral wire break monitoring

Features of the INT69 UY voltage relay

Extensive monitoring

Monitoring of: Phase sequence, phase failure, phase asymmetry, over-/undervoltage, temperature

Diagnose Port

Operating data can be read out via the Diagnose Port

LED as status indicator

Easy recognition of the system status via LED

Networking made easy

Can be networked into higher-level systems and controllers, also for remote monitoring

Technical features INT69 UY voltage relay

Article number	**A635S021	**A635S022	**A635S023	**A635S031	**A635S032	**A635S033
Supply voltage	AC 50/60Hz 115-240V ±10% 3VA or AC 50/60Hz 24V ±10% 3VA
Approval	UL
Temperature measuring circuit	1-2 AMS sensors in series alternative 1-9 PTC sensors according to DIN 44081, DIN 44082 in series
Mounting	Screw mounting
Mains voltage monitoring - Monitoring area - Accuracy - Shutter delay time 1 - Shutter delay time 2	AC 50/60 Hz, 220-230V ±25% 60s 1s	AC 50/60 Hz, 380-400V ±15% 60s 1s	AC 50/60 Hz, 440-480V ±12% 60s 1s	AC 50/60 Hz, 220-230V ±25% 120s 15s	AC 50/60 Hz, 380-400V ±15% 120s 15s	AC 50/60 Hz, 440-480V ±12% 120s 15s

Article number	13A735P080	31A735P080	41A735P080	52A735P080
Supply voltage	DC 24V ±20% 2W	AC 50/60 Hz 24V ±10% 3 VA	AC 50/60 Hz 115V ±10% 3 VA	AC 50/60 Hz 230V ±10% 3VA
Approval	UL
Temperature measuring circuit	1-2 AMS sensors in series alternative 1-9 PTC sensors according to DIN 44081, DIN 44082 in series
Mounting	Snap on 35 mm Standard rail according to EN 60715
Mains voltage monitoring - Monitoring area - Accuracy	AC 50/60 Hz, 150-690 V ±10 % ±2,5%

Areas of application of the INT69 UY Diagnose voltage relay

Cold water set
Condensing unit
Refrigeration systems
Water and sewage technology
Building / Factory Automation

Current sensing relay INT69 I2 Diagnose and INT89 I Diagnose

The INT69 I2 and INT89 I Diagnose current relay switches are a further development of the established KRIWAN trip units. In addition to the INT69 I2 or INT89 I Diagnose, the INT185 current transformer is required as the second component of the KRIWAN monitoring system. Fast-response current monitoring increases the availability and service life of a machine.
The INT69 I2 or INT89 I Diagnose stores operating and fault data in a non-volatile memory. This data can be read out and evaluated for diagnostics. This trip unit is mainly used in installations where current monitoring is required.

With current monitoring, the following events lead to tripping:

Permanent exceeding of the switch-off value for the tripping delay time.
Exceeding of the 1.5-fold switch-off value after expiry of the start-up bridging time
A short circuit or an interruption at a current input

Technical features INT69 I2 and INT89 I current relays

Designation	INT69 I2	INT69 I2	INT69 I2	INT89 I	INT89 I	INT89 I
Article number	13A571P080	22A571P080	31A571P080	13A576P080	22A576P080	31A576P080
Supply voltage	24 V DC	115-230 V ~ 50 Hz / 120-240 V ~ 60 Hz	24 V AC 50/60 Hz	24 V DC	115-230 V ~ 50 Hz / 120-240 V ~ 60 Hz	24 V AC 50/60 Hz
Temperature measuring circuit	1-2 AMS sensors in series alternatively 1-9 PTC sensors according to DIN 44081, DIN 44082 in series			Not available
Mounting	Screw mounting			Snap-on mounting on 35 mm standard rail according to EN 60715 or Screw mounting
Approval	UL VDE

Download documentation voltage relay INT69 UY and current relay INT69 I2 and INT89 I

Kriwan Stromrelais für den Schutz Ihrer Motoren

Application Note