SPAJ141C SPAJ 141C SPAJ141C-AA Overcurrent and Grounding Protection Device , China SPAJ141C SPAJ 141C SPAJ141C-AA Overcurrent and Grounding Protection Device Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	SPAJ141C SPAJ 141C SPAJ141C-AA
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Model:	SPAJ141C SPAJ 141C SPAJ141C-AA
Type	Overcurrent and Grounding Protection Device
Dimensions:	14 x 25 x 16 cm
Weight:	3.36 kg
Rated Frequency:	50 Hz (60 Hz on request)
Overcurrent Unit Rated Current:	1 A / 5 A
Ground Unit Rated Current:	0.2 A / 1 A
Thermal Stability (Continuous):	2 A / 4 A / 20 A
Thermal Stability (1 s):	50 A / 100 A / 500 A
Dynamic Stability (Half-wave):	100 A / 250 A / 1250 A
Input Impedance:	<750 mΩ / <100 mΩ / <20 mΩ
Trip Contacts:	Terminals 65-66, 74-75
Trip Contact Voltage:	250 V AC/DC
Trip Contact Continuous Current:	5 A
Trip Contact Capacity (0.5 s):	30 A
Trip Contact Capacity (3 s):	15 A
Trip Breaking Capacity (DC 48/110/220V):	5 A / 3 A / 1 A (L/R < 40 ms)
Signal Contacts:	Terminals 70-71-72, 68-69, 77-78, 80-81
Signal Contact Voltage:	250 V AC/DC
Signal Contact Continuous Current:	5 A
Signal Contact Capacity (0.5 s):	10 A
Signal Contact Capacity (3 s):	8 A
Signal Breaking Capacity (DC 48/110/220V):	1 A / 0.25 A / 0.15 A (L/R < 40 ms)
Dielectric Strength:	2 kV, 50 Hz, 1 min (IEC 60255-5)
Impulse Voltage:	5 kV, 1.2/50 µs, 0.5 J (IEC 60255-5)
Insulation Resistance:	>100 MΩ at 500 V
Operating Temperature:	-10°C to +55°C
Storage Temperature:	-40°C to +70°C
Humidity Resistance:	<95% at +40°C (56 days, IEC 60068-2-3)
Protection Class:	IP54 (panel-mounted, IEC 60529)

Description

The SPAJ141C SPAJ 141C SPAJ141C-AA overcurrent and grounding protection device provides selectable short-circuit and grounding protection for radial distribution feeders in directly grounded, resistively grounded, or impedance-contact power systems. The integrated protection relay includes an overcurrent protection unit and a grounding protection unit with flexible tripping and signaling functions. The overcurrent and grounding protection device can also be used in other applications requiring single-phase, two-phase, or three-phase overcurrent and grounding protection. The overcurrent and grounding protection device includes a circuit breaker failure protection unit.

The SPAJ141C SPAJ 141C SPAJ141C-AA overcurrent and grounding protection device is part of ABB’s distribution automation concept, which extends ABB’s solutions for measurement, control and management of power systems.

Applications

Chemical plants: Protection of high-voltage motors and power distribution branches.

Steel mills/metallurgical plants: Monitoring of short circuits and leakage currents in high-load production lines.

Paper mills/textile mills: Safety protection for distributed power systems.

Cement plants: Start-up and operation protection for high-power equipment such as mills.

Features

Overcurrent protection with definite time or inverse time characteristics

Instantaneous overcurrent protection with instantaneous or definite time characteristics

Sensitive zero-sequence current overcurrent protection with definite time characteristics

Instantaneous zero-sequence current overcurrent protection with instantaneous or definite time characteristics

Circuit breaker failure protection

Selectable output relay configuration

Flexible serial communication function

Flexible function configuration suitable for various applications

Digital display of setting values, measured values, and fault record values

Continuous self-test function

Maintenance and Repair

The relay operates under the conditions specified in the "Technical Data" section. The relay is practically maintenance-free; under normal operating conditions, the relay module contains no components susceptible to abnormal physical or electrical corrosion.

If the environmental conditions at the relay's operating location differ from the specifications, such as temperature, humidity, or prolonged exposure to air containing chemical gases or dust, the relay should undergo secondary testing or a visual inspection after the relay module is removed from its housing. During the visual inspection, the following must be noted:

- Check for any signs of mechanical damage on the relay module, contacts, and relay housing.

- If there is accumulated dust inside the relay cover or housing, carefully remove it with a blower.

- Check for any signs of corrosion or rust on the relay's interior, housing, or terminals.

FAQ

Q: What are the main differences between SPAJ141C SPAJ141C SPAJ141C-AA and 140C?
A: The 141C has a more sensitive grounding protection input circuit than the 140C, making it suitable for systems with more stringent grounding requirements.

Q: How do I reset the alarm signal on SPAJ141C SPAJ141C SPAJ141C-AA?
A: Press the RESET/STEP button on the panel. If a persistent display is set, the light will only turn off after a manual reset.

Q: Does SPAJ141C SPAJ141C SPAJ141C-AA support remote monitoring?
A: Yes, it requires a SPA-ZC 17 or SPA-ZC 21 communication module connected to a fiber optic bus.

Q: Where can I view the fault codes on SPAJ141C SPAJ141C SPAJ141C-AA?
A: In the event of an internal fault, the red digital display on the left will show the specific fault type along with a green code.

Q: Can SPAJ141C SPAJ141C SPAJ141C-AA be directly plugged in and replaced as a spare part?
A: Yes, but before replacement, you must verify the position of the DIP switches (SGF/SGB/SGR) on the back to ensure the logic is consistent with the original device.