ABB DO821 Digital Output Module (3BSE013250R1)

Description

The DO821 is an 8 channel 230 V a.c./d.c. relay (NC) output module for the S800 I/O. The maximum output voltage is 250 V a.c. and the maximum continuous output current is 3 A. All outputs are individually isolated. Each output channel consists of optical isolation barrier, output state indication LED, relay driver, relay and EMC protection components. The relay supply voltage supervision, derived from the 24 V distributed on the ModuleBus, gives an error signal if the voltage disappears, and the Warning LED turns on. The error signal can be read via the ModuleBus. This supervision can be enabled/disabled with a parameter.

Features and Benefits

Features and benefits
8 channels for 230 V a.c./d.c. relay Normal Closed (NC) outputs
8 isolated channels
Output status indicators
OSP sets outputs to predetermined state upon error detection

General Information

Article Number: 3BSE013250R1
Type: Digital Output Module
Signal Specification: 230 V a.c./d.c., (5-250 V a.c./d.c.), 3 A per channel
Number of Channels: 8
Relay Type: Normally Closed (NC)
Redundancy: None
High Integrity: No
Intrinsic Safety: No
Compatibility: Works with various MTU modules including TU811, TU813, TU831, TU836, TU837, and TU851.
HART: No
SOE (Sequence of Events): No

Detailed Data

Item	Value
Isolation	Individually isolated, channel-to-channel and to circuit common
Current Limiting	Can be limited by the MTU
Maximum Field Cable Length	600 meters (656 yards)
Rated Insulation Voltage	250 V
Dielectric Test Voltage	2000 V a.c.
Power Dissipation	Typ. 2.9 W
Current Consumption (+5 V ModuleBus)	60 mA
Current Consumption (+24 V ModuleBus)	140 mA
Current Consumption (+24 V External)	0
Front LEDs	Fault (F), Run (R), Warning (W), Output State (OSP), Channel 1-8 Status
Relay Power Supervision	24/12 V Relay Power Converter Monitor
Status Indication of Supervision	Module Error, Module Warning, Channel Error

Environment and Certification

CE Mark: Yes
Electrical Safety: EN 61010-1, UL 61010-1, EN 61010-2-201, UL 61010-2-201
Hazardous Location: None
Marine Certification: ABS, BV, DNV, LR
Operating Temperature: 0 to +55°C (+32 to +131°F), approvals issued for +5 to +55°C
Storage Temperature: -40 to +70°C (-40 to +158°F)
Pollution Degree: Degree 2, IEC 60664-1
Corrosion Protection: ISA-S71.04: G3
Relative Humidity: 5 to 95%, non-condensing
Max Ambient Temperature: 55°C (131°F), 40°C (104°F) for vertical mounting in compact MTU
Protection Class: IP20 (IEC 60529)
Mechanical Operating Conditions: IEC/EN 61131-2
EMC Compliance: EN 61000-6-4, EN 61000-6-2
Overvoltage Categories: IEC/EN 60664-1, EN 50178
Equipment Class: Class I (earth protected)
RoHS Compliance: DIRECTIVE/2011/65/EN (EN 50581:2012)
WEEE Compliance: DIRECTIVE/2012/19/EU

Dimensions

Width: 45 mm (1.77”)
Depth: 102 mm (4.01”), 111 mm (4.37”) including connector
Height: 119 mm (4.7”)
Weight: 0.23 kg (0.5 lbs)

Mounting and Installation

Compatibility with MTUs: The DO821 module is compatible with various MTU units, including TU811, TU813, TU831, TU836, TU837, and TU851.
Keying Code: CA (for proper module insertion).

About Us

Meloauto – Your Trusted Supplier for Original, Brand-New PLC and DCS Parts Meloauto offer a vast selection of products from globally recognized brands, including Allen Bradley, Bently Nevada, Honeywell, ABB, GE Fanuc, Siemens, Invensys Triconex, ICS Triplex, Foxboro, Yokogawa, Schneider, and Hima, among others. With tens of thousands of new parts ready to ship, Meloauto has successfully served customers across over 50 countries worldwide. We focus on supplying discontinued and hard-to-find items, ensuring each product is in brand-new, original condition.

Contact Us

Phone: +86-15915488782
Email: [email protected]
WhatsApp: +8615915488782
Business Hours: 24/7 service
Address: Unit 601, Powerlong International Center, No. 1599 Luling Road, Siming District, Xiamen City, Fujian, China

Let us help you find the automation parts you need with reliable quality and dedicated support!